Death Valley National Park (Death Valley) weather in May
May in Death Valley National Park: nice, dry — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#3 of 12 months in Death Valley National Park · #83 of 1413 destinations to visit in May · comfort 92/100 (tier S)
- Days
- 24°C
- Nights
- 13°C
- Wet days
- 1
- Sun
- 12.9 h
- Humidity
- 19%
- Daylight
- 14 h

Traveller notes on Death Valley National Park in May
Regulars answer the recurring "May isn't that bad, is it?" question with the floor figures: the May average high at Furnace Creek is about 100F and the record is 122F. Their advice is not to skip the park but to change how you use it - anything on foot before the sun is up properly, gallons of water per person, no exertion at midday, and a car whose air conditioning you trust. Several say serious hiking here is over after March. The high ground is the other answer: Wildrose, the charcoal kilns and Aguereberry Point run roughly 3 to 5F cooler per 1,000ft and are quieter with it. Our own row reads from high ground rather than the valley floor: 23.5C days, 12.8C nights, humidity 19 percent, 0.7 precipitation days and 12.9 hours of sun.
Other months in Death Valley National Park
Death Valley-forum threads on a February visit describe the lowest elevations as genuinely first to bloom, posters naming Harmony Borax Works, south of Badwater, and Badwater Road near Furnace Creek as where wildflowers appear as early as mid to late February. Regulars call this genuinely the warmest zone in the park, several posters naming the seventies and eighties as standard there while higher elevations stay cooler. Posters call the huge elevation range a real factor in bloom timing, several regulars naming snow still on the highest peaks even as valley flowers bloom below. Regulars call bloom timing genuinely shifting year to year, several threads naming recent rainfall as the real variable behind whether February hits peak color. Posters recommend checking current wildflower reports before planning around blooms, several regulars calling this standard given how unpredictable timing gets. The record: 11.5C days, 2.4C nights, 20.9mm across under 3 days and 36 percent humidity.
Death Valley-forum threads on an August visit describe average highs as genuinely extreme, posters citing figures around 115 Fahrenheit with lows still near 86 overnight. Regulars call staying on paved roads essential this month, dirt roads considered a real risk given the heat and remoteness. Posters recommend carrying real amounts of water and a cool bag to keep it chilled, several describing an August trip as best spent largely inside an air-conditioned car. Regulars call hiking genuinely limited in August, most itineraries built around short stops at Furnace Creek, Harmony Borax Works and maybe Salt Creek rather than any real trail time. Posters call opinions on an August visit genuinely divided, some describing it as miserable while others say it's manageable with real precautions and a slower pace. The record: 32.5C days feeling like 40C, 20.9C nights, 9.4mm across under 1 day and 18 percent humidity.
Death Valley-forum threads on a summer visit describe conditions as genuinely dangerous, one visitor's car thermometer reading 132 degrees Fahrenheit against the park's own reported 126. Regulars call this level of heat capable of causing real medical emergencies, the park having seen heat-related incidents in past summers. Posters recommend keeping plenty of water on hand along with a genuinely full tank of gas, breakdowns here a serious risk rather than a minor inconvenience. Regulars call staying on paved roads standing advice, avoiding long hikes during the hottest stretch of the day. Posters recommend renting from a reputable company with a newer-model vehicle, older or poorly maintained cars a real liability in this heat. Regulars call early morning the only genuinely safe window for real time outdoors, the rest of the day best spent in air conditioning. The record: 33.9C days feeling like 33C, 22.6C nights, a scant 0.6 days of measurable precipitation and 16 percent humidity.
Death Valley-forum threads on November weather describe daytime highs typically in the sixties and seventies Fahrenheit, nights dropping into the forties and occasionally the thirties, a genuine relief compared to the brutal summer reputation. Posters call November one of just a handful of months on record here that has never recorded triple-digit heat, a real marker of how much conditions ease by late fall. Regulars describe higher elevations as capable of real cold and even a dusting, a stark contrast to the valley floor's mild readings. Posters describe November as the informal start of peak season, Veterans Day weekend a real marker of when crowds pick up. Regulars call the low humidity a genuine factor, evaporating much of what little moisture falls before reaching the valley floor. Posters recommend booking well ahead given how popular this stretch runs. The record: 14.7C days feeling like 11C, 5.6C nights, a low 34 percent humidity and 8.8 hours of sun.
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Death Valley National Park climate normals — May
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Death Valley National Park in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyone of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Death Valley National Park's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherDeath Valley National Park's best weather comes in April, May and October — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Death Valley National Park in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Summer extreme heat
15 May – 30 SepClosuresThe hottest reliably measured place on Earth, and the park closes its lower trails and warns people off walking after ten in the morning. Cars overheat on the climbs and there is no phone signal to call it in. Source ↗
Nearby, and something's on
Within 300 km of Death Valley National Park — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Death Valley National Park?
Death Valley National Park in May — FAQ
- Is May a good time to visit Death Valley National Park?
- May in Death Valley National Park: nice, dry — an excellent time to visit. It ranks #3 of 12 months for Death Valley National Park on SeasonMap's comfort score (92/100).
- What is the weather like in Death Valley National Park in May?
- In May, Death Valley National Park averages a daily high of 23.5°C and a low of 12.8°C, with about 3.3 mm of rain over roughly 0.7 rainy days.
- What is the air quality in Death Valley National Park in May?
- Death Valley National Park has a mean US Air Quality Index of about 65 in May.
Within 300 km: Sequoia National Park's Crystal Cave tours around 20 May – 10 Sep, and Yosemite National Park's Dogwood in the valley around 15 Apr – 20 May.