Carlsbad Caverns by Month: Weather, the 56°F Cave & When to Go (2026)
Carlsbad Caverns National Park · every month
Pick a month. Stand in it.
Average temperatures from NOAA's station on the park grounds, daylight from the sun's math, hours and reservation rules from the park's own pages. Choose a month and the page changes to what the desert above the cave is actually like then. The cave itself does not change: 56°F, every month.
average highaverage lowprecipitationsnowhours across the top = daylight
Carlsbad Caverns, Nm Us, 4,440 ft (NOAA 1991-2020 normals, station USC00291480). Tap a column or pick a month below.
Which month are you thinking about?
Showing all twelve months. Pick one and the page becomes that month.
Last updated September 3, 2026 How we research
Carlsbad Caverns is two climates stacked on top of each other. On the surface it is the Chihuahuan Desert at 4,440 feet: nights below freezing in winter, highs above 90 from June through August, and a monsoon that dumps most of the year's rain between June and September, with September the wettest month of all. Eight hundred and thirty feet down, none of that reaches you. The Big Room holds 56°F year-round with humidity near 100 percent in the deep sections, so the cave is a warm refuge in January and a cool one in July.
That is why the month matters mostly for what happens above ground: whether the Natural Entrance trail is a pleasant walk or a grueling climb, whether afternoon storms are closing the scenic drive, and how many other people booked the same timed-entry slot. The chart shows the whole year. Below it, every month has the same answers: what the weather feels like, how much daylight you get, what is open, how busy it is, and what to do.
Does it snow at Carlsbad Caverns?
A little, and not for long. NOAA's normals for the park station show measurable snow only from November through February: 0.2 inches in November, 2 inches in December, 0.4 in January and 0.9 in February, with nothing from March through October. December is the only month that reaches an inch. The practical effect is not the snow itself but ice on the upper switchbacks of the Natural Entrance trail early in the morning or after rain; the park's record low of -4°F was set in January. The cave does not notice any of it.
Carlsbad Caverns National Park in January
January: the coldest month outside, 56 degrees inside
Bright, dry and cold at the edges, with highs in the mid-50s and nights that dip below freezing. Ice can form on the upper Natural Entrance trail first thing in the morning, and the cave feels warm the moment you step out of the wind.
- 56° / 34°avg high / low
- 10.3 hdaylight, 6:59 am to 5:14 pm
- 0.3 inprecipitation
What’s open
- Timed-entry reservations are required year-round for every cavern visit: $1 per ticket at recreation.gov or 877-444-6777, bookable up to 30 days ahead and as late as 5 AM Mountain time on the day of your visit. A separate $15 entrance pass is bought at the visitor center.
- The park is open 24 hours, the visitor center runs 9 AM to 5 PM and cavern entrance hours are 9:30 AM to 2:30 PM, with the last timed-entry tickets sold at 2:15 PM.
- All cave tours operate; the Natural Entrance trail may be slippery on cold mornings. The park is closed on New Year's Day.
How busy
The quietest stretch of the year once the holiday week is over.
Best for
- solitude
- cool-weather hiking
What to do
- Walk the self-guided Big Room route, 1.25 miles, in 56°F comfort while the surface is freezing.
- Book the ranger-guided King's Palace tour, about a mile.
- Take the Chihuahuan Desert Nature Trail in the warm middle of the day.
Pack
- A real winter coat for the surface, which you will shed on the way down
- A light sweater or fleece for the cave
- Closed-toe shoes with tread for icy switchbacks and damp cave floors
Carlsbad Caverns National Park in February
February: still winter on the surface, a little more light
Highs climb toward 60 while nights stay in the mid-30s, and sunset pushes past 5:40. It is the snowiest month after December, though 0.9 inches on average is a dusting that rarely lingers.
- 61° / 37°avg high / low
- 11.0 hdaylight, 6:41 am to 5:43 pm
- 0.4 inprecipitation
What’s open
- Timed entry required, $1 per ticket, booked up to 30 days ahead at recreation.gov or by phone.
- Cavern entrance hours 9:30 AM to 2:30 PM; elevator access to the Big Room runs the same hours.
- Lower Cave and Slaughter Canyon Cave tours need their own reservations and run most days depending on ranger staffing.
How busy
Quiet on weekdays; weekends bring day-trippers. Estimate based on the winter pattern.
Best for
- quiet tours
- mild desert walks
What to do
- The Lower Cave tour, a separately reserved ranger-led trip below the Big Room.
- Walnut Canyon Overlook Trail for a short surface walk with views.
- The Living Desert Zoo and Gardens in Carlsbad for a mild afternoon.
Pack
- Layers for a 25-degree swing between dawn and midday
- Fleece for the cave
- Sunglasses: the desert glare is real even in winter
Carlsbad Caverns National Park in March
March: hiking season opens, and so does the wind
Highs near 68 and nearly twelve hours of daylight make this the first month for full days on the surface trails. The NPS notes that wind is common from March through May, so expect gusty afternoons.
- 68° / 43°avg high / low
- 11.9 hdaylight, 7:10 am to 7:05 pm
- 0.6 inprecipitation
What’s open
- Timed entry required year-round; book at recreation.gov up to 30 days ahead.
- The Natural Entrance trail, a 750-foot descent, is fully passable; all cave tours run daily.
- No road closures are typical in spring, but sudden storms can briefly flood Walnut Canyon Desert Drive, the unpaved scenic loop, which was already closed for flood damage at the last check. Read the NPS alerts before planning trails off that road.
How busy
Moderate; spring break lifts weekends. Midweek is noticeably calmer.
Best for
- surface hiking
- the Natural Entrance
What to do
- Hike down the Natural Entrance and ride the elevator back up.
- Juniper Ridge Trail, if Walnut Canyon Desert Drive has reopened.
- Slaughter Canyon Trail on the park's quieter west side.
Pack
- A windproof layer
- Sunscreen and a hat that will not blow off
- Fleece for the cave
Carlsbad Caverns National Park in April
April: the sweet spot before the heat
Highs in the mid-70s, lows near 50, and almost 13 hours of daylight. Afternoon wind can kick up dust storms and the first thunderstorms roll through, but mornings are about as good as this desert gets.
- 76° / 49°avg high / low
- 12.9 hdaylight, 6:30 am to 7:26 pm
- 0.5 inprecipitation
What’s open
- Timed entry required; $1 per ticket plus the $15 entrance pass at the visitor center.
- Visitor center 9 AM to 5 PM; last timed-entry ticket sold at 2:15 PM. Anyone hiking the Natural Entrance must finish the trail by 3:30 PM and be out of the cave by 4:45 PM.
- Check NPS alerts for the status of Walnut Canyon Desert Drive before counting on the trails it serves.
How busy
Moderate, and busier on weekends than midweek.
Best for
- hiking
- birding
- mild weather
What to do
- Upper Rattlesnake Canyon Loop while the mornings are cool.
- Rattlesnake Springs, the park's green corner, for birds.
- Yucca Canyon Trail for a longer surface day.
Pack
- Layers: cool mornings, warm midday
- Sunscreen and a hat
- A buff or bandana for dust
Carlsbad Caverns National Park in May
May: warm days and the first real thunderstorms
Highs reach 84 and rainfall more than doubles from April to 1.25 inches, most of it in late-month thunderstorms. Still hiking weather in the morning; by afternoon the cave starts to look like the better plan.
- 84° / 58°avg high / low
- 13.8 hdaylight, 6:01 am to 7:47 pm
- 1.2 inprecipitation
What’s open
- Timed entry required; reservations open 30 days ahead at recreation.gov.
- Cavern entrance hours 9:30 AM to 2:30 PM; elevator to the Big Room the same hours.
- The Old Guano Trail stays open through the monsoon season; the scenic Walnut Canyon Desert Drive is the road that closes.
How busy
Moderate, climbing toward Memorial Day weekend. Estimate.
Best for
- early hikes
- long evenings
What to do
- Start early on the Natural Entrance, then spend the warm afternoon in the Big Room.
- King's Palace ranger tour.
- A Night Sky program after a 7:47 PM sunset.
Pack
- Rain shell for afternoon cells
- Two liters of water for any surface hike
- Fleece for the cave
Carlsbad Caverns National Park in June
June: the hottest month, and the cave earns its keep
Average highs hit 92 with more than 14 hours of sun, and the monsoon season begins. Early morning and evening are the only comfortable hours outdoors; the 750-foot climb out of the Natural Entrance in full sun is genuinely hard.
- 92° / 66°avg high / low
- 14.2 hdaylight, 5:51 am to 8:05 pm
- 1.2 inprecipitation
What’s open
- Timed entry required; book the full 30 days ahead in summer because slots fill.
- Monsoon thunderstorms can close scenic roads for hours to a day from flooding or debris; the main park road to the visitor center and cavern entrance stays open year-round.
- Cavern entrance hours 9:30 AM to 2:30 PM. Take the elevator down and up if the heat is extreme.
How busy
High. Summer vacation starts and timed-entry slots go fast.
Best for
- the cave as refuge
- longest days
What to do
- Be at the cavern entrance at 9:30 and walk the Natural Entrance before the heat, or ride the elevator.
- Spend midday in the Big Room at 56°F.
- Check the park's calendar for the evening Bat Flight Program at the amphitheater.
Pack
- At least 3 liters of water per person for the Natural Entrance
- Hat, sunglasses, high-SPF sunscreen
- A fleece: the cave is a 35-degree drop from the parking lot
Carlsbad Caverns National Park in July
July: monsoon afternoons and peak crowds
Highs near 91, 2.23 inches of rain, and the monsoon at full strength: clear mornings, towering clouds by lunch, storms by mid-afternoon. Flash floods can close the scenic drive unpredictably, so surface plans need a backup.
- 91° / 68°avg high / low
- 14.1 hdaylight, 6:02 am to 8:06 pm
- 2.2 inprecipitation
What’s open
- Timed entry required; book at recreation.gov the moment your 30-day window opens.
- Afternoon thunderstorms can close scenic roads for a few hours to a day; Walnut Canyon Desert Drive was closed for flood damage at the last check, with no repair timeline. Read NPS alerts before driving unpaved roads.
- All major cave tours operate daily; cavern entrance hours 9:30 AM to 2:30 PM, last ticket 2:15 PM.
How busy
Peak of the year. Cave tours fill quickly.
Best for
- bat flights
- cave tours
What to do
- Go underground for the hot middle of the day: Big Room, King's Palace, Left Hand Tunnel.
- Short surface walks only at dawn or dusk.
- The Bat Flight Amphitheater at sunset, on the days the program runs.
Pack
- Rain shell and a plan for a closed road
- 3 liters of water per person outdoors
- Fleece and grippy shoes for the cave
Carlsbad Caverns National Park in August
August: the same heat, the same storms, the last of the peak
Highs around 90 and 2 inches of monsoon rain, mostly in afternoon bursts. Daylight starts to shorten but the pattern is July's: mornings for the surface, midday for the cave, evenings for the bats.
- 90° / 66°avg high / low
- 13.4 hdaylight, 6:22 am to 7:44 pm
- 2.0 inprecipitation
What’s open
- Timed entry required, $1 per ticket, 30 days ahead; the $15 entrance pass is bought at the visitor center.
- Monsoon storms bring flash flood risk on trails and can close Walnut Canyon Desert Drive for hours to days.
- Elevator to the Big Room 9:30 AM to 2:30 PM daily; Natural Entrance hikers must be on the trail before 3:30 PM.
How busy
Still peak through most of the month; eases as schools go back.
Best for
- the cave
- evenings
What to do
- The self-guided Big Room, then re-hydrate between tours.
- Lower Cave, reserved separately, for a longer ranger-led trip.
- Dinner in Carlsbad after the storms pass.
Pack
- Full sun kit and 3 liters of water per person
- Rain shell
- A fleece for 56°F underground
Carlsbad Caverns National Park in September
September: the wettest month of the year, then the turn
By NOAA's count September averages 2.93 inches, more than any other month, as the monsoon tails off. Highs drop to 83, the crowds thin after Labor Day, and by the last week the storms usually clear and the surface trails come back into play.
- 83° / 60°avg high / low
- 12.4 hdaylight, 6:41 am to 7:06 pm
- 2.9 inprecipitation
What’s open
- Timed entry required year-round; 30-day booking window at recreation.gov.
- Flash flood risk stays elevated through early September; check NPS alerts before unpaved roads or canyon trails.
- All cave tours run on full schedules; cavern entrance hours 9:30 AM to 2:30 PM.
How busy
Falls sharply after Labor Day.
Best for
- fewer people
- late-month hiking
What to do
- Late-month full-day hikes as the storms fade: Lower Rattlesnake Canyon.
- Slaughter Canyon Cave, a separately reserved tour on the park's west side.
- El Capitan Viewpoint on a washed-clean morning.
Pack
- Rain shell early in the month
- Water: highs still in the 80s
- Fleece for the cave
Carlsbad Caverns National Park in October
October: the month the old page picked as the best
Highs of 75, lows in the low 50s, rainfall back down to 1.16 inches and the monsoon gone. This is when the Natural Entrance trail turns comfortable again and a full day on the surface stops being a heat calculation.
- 75° / 52°avg high / low
- 11.4 hdaylight, 7:00 am to 6:27 pm
- 1.2 inprecipitation
What’s open
- Timed entry required; book up to 30 days ahead.
- All cave tours operate on full schedules; the Natural Entrance is comfortable from October onward.
- Most trails are open, subject to the status of Walnut Canyon Desert Drive on the NPS alerts page.
How busy
Moderate and easing. The old guidance called it both low and moderate; plan on weekends being busier than weekdays.
Best for
- best overall
- the Natural Entrance
- full hiking days
What to do
- Hike the Natural Entrance both ways, 1.25 miles and 750 feet each direction.
- Juniper Ridge Trail if the scenic drive is open.
- Yucca Canyon for a long, cool surface day.
Pack
- Layers: mornings near 50, afternoons mid-70s
- Sunscreen and a hat
- Fleece and grippy shoes for the cave
Carlsbad Caverns National Park in November
November: mild, quiet, and closed for Thanksgiving
Highs around 65, nights in the low 40s, light rain and the first trace of snow at 0.2 inches. Sunset lands before 5 PM after the clocks change, so the surface day is short but almost always pleasant.
- 65° / 42°avg high / low
- 10.5 hdaylight, 6:26 am to 4:59 pm
- 0.7 inprecipitation
What’s open
- Timed entry required year-round; $1 per ticket at recreation.gov or 877-444-6777.
- The park is closed on Thanksgiving Day, and holiday-week closures may limit some operations.
- Cavern entrance hours 9:30 AM to 2:30 PM; visitor center 9 AM to 5 PM.
How busy
Quiet. The old guidance ranged from low to moderate; Thanksgiving week is the exception.
Best for
- solitude
- mild weather
What to do
- Upper Rattlesnake Canyon Loop in the mild midday.
- Rattlesnake Springs for a quiet, green stop.
- A Night Sky program: dark by 5:30.
Pack
- A warm layer for early mornings and after sunset
- Headlamp for the short days
- Fleece for the cave
Carlsbad Caverns National Park in December
December: the snowiest month, at two inches
Highs in the mid-50s, lows near 35, and the year's only real snow at 2 inches on average. Most days stay above freezing, but ice on the upper Natural Entrance switchbacks is the thing to watch on cold mornings. The cave is the warmest place in the park.
- 57° / 35°avg high / low
- 10.1 hdaylight, 6:51 am to 4:55 pm
- 0.6 inprecipitation, 2 in snow
What’s open
- Timed entry required; $1 per ticket, 30-day window, plus the $15 entrance pass at the visitor center.
- The park is closed on Christmas Day and New Year's Day.
- All cave tours operate; the Natural Entrance trail may be slippery, and the elevator runs 9:30 AM to 2:30 PM.
How busy
Lowest of the year outside the Christmas-to-New-Year week. Estimate.
Best for
- solitude
- warm cave, cold desert
What to do
- The Big Room at 56°F while the surface hovers near freezing.
- King's Palace ranger tour.
- Base in Carlsbad for warm dinners and short drives.
Pack
- Winter coat for the surface
- Light sweater for the cave
- Closed-toe shoes with tread for ice and damp stone
Which month is yours?
Questions people ask about Carlsbad Caverns’s seasons
What is the best month to visit Carlsbad Caverns?
October and November: highs in the 65 to 75 range, the monsoon over, crowds down after the summer peak and most trails open. March through May is the other good window if you dodge the late-May thunderstorms. Summer works if you accept heat and crowds and use the cave as a midday refuge.
Do I need a reservation to enter the cave?
Yes, always. Timed-entry tickets are required year-round and cost $1 per ticket at recreation.gov or 877-444-6777. You can reserve up to 30 days ahead and as late as 5 AM Mountain time on the day of your visit. A separate $15 entrance pass is bought at the visitor center. In summer, book the day your 30-day window opens.
How cold is the cave and what should I wear?
The Big Room holds a constant 56°F, with deeper sections at 68°F and humidity near 100 percent. It feels chilly after the descent, so wear a light sweater or fleece even in summer; in winter you will shed your coat but still feel cool 830 feet down. Closed-toe shoes with good tread matter more than the jacket, because cave surfaces are slippery.
When is monsoon season at Carlsbad Caverns?
June through September, peaking in July and August, with September the wettest month at 2.93 inches. Afternoon thunderstorms can close scenic roads for hours to days and flood trails quickly. The main road to the visitor center stays open; Walnut Canyon Desert Drive is the one that closes, and it was already shut for flood damage at the last check.
Does it snow at Carlsbad Caverns?
Lightly. NOAA normals show 2 inches in December, 0.4 in January, 0.9 in February and a trace in November, with none the rest of the year. The record low is -4°F in January. Watch for ice on the upper Natural Entrance trail on cold mornings.
When is the Natural Entrance trail open?
Year-round, weather permitting. It is 1.25 miles with 750 feet of elevation change. Summer heat makes it grueling, so go at opening or take the elevator; winter can leave ice on the upper sections; spring and fall are ideal. You must be on the trail by 3:30 PM and out of the cave by 4:45 PM.
Every month on this page is built from NOAA normals for the station on the park grounds, the sun's position, and the park's published hours and reservation rules, not from a visit. Where the old page's guidance was inconsistent, the page says so rather than picking a number. Temperatures: Carlsbad Caverns, Nm Us, 4,440 ft (NOAA 1991-2020 normals, station USC00291480).
