Death Valley
September
Weather in Death Valley for September 2025
Your guide to Death Valley weather in September - trends and predictions
In general, the average temperature in Death Valley at the beginning of September is 39.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 35.3 °F by the end of September.
Precipitation in Death Valley during September is a rare event, with an average of fewer than 2 rainy days.
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29
Dry days
1
Rainy days
0
Snow days
35°/15°
Temperatures
15 km/h
Avg max wind
25 %
Avg humidity
Death Valley in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  42° | 2  39° | 3 38° | 4 37° | 5 40° | 6 40° | 7 41° |
| 8 40° | 9 41° | 10  40° | 11 38° | 12 35° | 13 37° | 14 38° |
| 15 37° | 16 33° | 17 33° | 18 32° | 19 31° | 20 31° | 21 33° |
| 22 32° | 23 34° | 24 35° | 25 36° | 26 35° | 27 36° | 28 36° |
| 29 37° | 30  32° |
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Temperatures trend during September in Death Valley
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 42° /25° | 0 mm | 10 | |
| Sept. 2 | Partly cloudy | 39° /23° | 1 mm | 10 | |
| Sept. 3 | Sunny | 38° /22° | 0 mm | 9 | |
| Sept. 4 | Sunny | 37° /19° | 0 mm | 9 | |
| Sept. 5 | Sunny | 40° /21° | 0 mm | 10 | |
| Sept. 6 | Sunny | 40° /20° | 0 mm | 10 | |
| Sept. 7 | Sunny | 41° /20° | 0 mm | 10 | |
| Sept. 8 | Sunny | 40° /19° | 0 mm | 10 | |
| Sept. 9 | Sunny | 41° /20° | 0 mm | 10 | |
| Sept. 10 | Overcast | 40° /22° | 0 mm | 9 | |
| Sept. 11 | Sunny | 38° /19° | 0 mm | 9 | |
| Sept. 12 | Sunny | 35° /18° | 0 mm | 9 | |
| Sept. 13 | Sunny | 37° /17° | 0 mm | 9 | |
| Sept. 14 | Sunny | 38° /18° | 0 mm | 9 | |
| Sept. 15 | Sunny | 37° /18° | 0 mm | 9 | |
| Sept. 16 | Sunny | 33° /15° | 0 mm | 8 | |
| Sept. 17 | Sunny | 33° /10° | 0 mm | 8 | |
| Sept. 18 | Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 19 | Sunny | 31° /14° | 0 mm | 7 | |
| Sept. 20 | Sunny | 31° /11° | 0 mm | 8 | |
| Sept. 21 | Sunny | 33° /11° | 0 mm | 8 | |
| Sept. 22 | Overcast | 32° /11° | 0 mm | 8 | |
| Sept. 23 | Partly cloudy | 34° /13° | 0 mm | 9 | |
| Sept. 24 | Sunny | 35° /10° | 0 mm | 9 | |
| Sept. 25 | Sunny | 36° /12° | 0 mm | 9 | |
| Sept. 26 | Sunny | 35° /11° | 0 mm | 9 | |
| Sept. 27 | Sunny | 36° /12° | 0 mm | 9 | |
| Sept. 28 | Sunny | 36° /13° | 0 mm | 9 | |
| Sept. 29 | Sunny | 37° /13° | 0 mm | 9 | |
| Sept. 30 | Thundery outbreaks possible | 32° /11° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Death Valley in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Death Valley forecast closer to your planned date for the most up-to-date weather information.
Death Valley in September - FAQ
What are the expected maximum and minimum temperatures in Death Valley during September?
Expect warm days with temperatures around 35°, cooling to mild conditions of 15° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Death Valley during September?
Rainfall in Death Valley during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Death Valley during September?
The average wind speed in Death Valley during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Death Valley
Explore the daily rainfall trends and prepare for Death Valleys September weather 💧
UV exposure in Death Valley during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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