Average weather for Twentynine Palms in September
It's hot in September in Twentynine Palms with an average temperature of 37°C. Temperatures this month range from a low of 33°C to a high of 41°C. At night, you can expect temperatures between 19°C and 27°C.
Start of September
The month of September starts in Twentynine Palms with hot temps, averaging around 40°C during the day and nights around 26°C. There’s little chance of precipitation. The weather’s mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps drop to around 37°C, with nights around 22°C. Not much precipitation expected during this period. It’s mostly dry and sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Twentynine Palms is around 35°C, while nighttime temps are about 21°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
In September, there is an average of 14 mm of precipitation, spread over 1 day. The wind speed is around 4 Bft, mostly coming from the West.
Twentynine Palms in September |
New York | ||
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37°C | 27°C | |
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41°C | 31°C | |
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33°C | -5°C | |
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14 mm | 57 mm | |
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1 day | 9 days |
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Twentynine Palms?
September isn’t a good month to be in Twentynine Palms. The average temperature of 37°C this month is uncomfortably hot for a comfortable stay.
Temperature records
With 51°C in 2019, Twentynine Palms reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 24°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 34°C.
Check out the climate of Twentynine Palms for all months and discover the best travel time
Daily Temperature in September in Twentynine Palms
This chart shows the average daily high and low temperatures in September for Twentynine Palms, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Twentynine Palms
The chart below shows the average daily precipitation in September for Twentynine Palms, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 1 day of precipitation in Twentynine Palms.
Daily UV index in September in Twentynine Palms
This chart shows the average daily UV index in September in Twentynine Palms, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Twentynine Palms over the years
This chart shows the average temperature in September in Twentynine Palms, measured in degrees Celsius, over the past few years.
Total precipitation in September in Twentynine Palms over the years
This chart shows the average precipitation in September in Twentynine Palms, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Twentynine Palms
Click on any day in September to get detailed info about the usual weather on that day in Twentynine Palms. Check out the historical temperatures and precipitation over the past 10 years on this day.






























Weather experiences in September in Twentynine Palms
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Average weather in Twentynine Palms by month
Click on a month below to see detailed weather info for Twentynine Palms. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Twentynine Palms for all months at once