Temperatures in September
It's hot in September in Joshua Tree with an average temperature of 35°C. Temperatures this month range from a low of 31°C to a high of 40°C. At night, you can expect temperatures between 17°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Joshua Tree in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Joshua Tree with hot temperatures, averaging around 38°C during the day and nights close to 24°C. There’s little chance of precipitation. The weather is mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature drops to around 36°C, with nights close to 21°C. Not much precipitation expected during this period. It’s mostly dry with sunshine. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Joshua Tree will be around 33°C, with nights close to 19°C. No precipitation expected, with plenty of sunshine on the horizon.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in September
In September, there is an average of 15 mm of precipitation, spread over 1 day. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average chance of precipitation is only 4% in September.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Joshua Tree. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Joshua Tree in September |
London | ||
|---|---|---|---|
 Average Temperature |
35°C | 20°C | |
 High Temp |
40°C | 22°C | |
| Low Temp |
31°C | 17°C | |
 Total Precipitation |
15 mm | 44 mm | |
| Rainy Days |
1 day | 8 days | |
August
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 Joshua Tree?
September is a fantastic month to be in Joshua Tree for sunny weather. You’ll get high temperatures and little chance of rain this month.
Temperature records for Joshua Tree in September
With 49°C, Joshua Tree hit the highest temperature in the last 10 years in September 2019. The lowest daytime temperature in this month was 23°C in 2016. The extreme night temperatures ranged from a low of 8°C to a high of 30°C.
Check out the climate of Joshua Tree for all months and discover the best travel time
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Daily Temperature in September in Joshua Tree
This chart shows the average daily temperatures, both day and night, for each day in September in Joshua Tree, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Joshua Tree
The chart below shows the average daily precipitation in September for Joshua Tree, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect about 1 day of rain in Joshua Tree.
Daily UV Index in September in Joshua Tree
This chart shows the average daily UV index in September in Joshua Tree, 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 Joshua Tree Over the Years
This chart shows the average temperature in September in Joshua Tree, measured in degrees Celsius, over the past years.
Total Precipitation in September in Joshua Tree Over the Years
This chart shows the average precipitation in September in Joshua Tree, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Joshua Tree
Click on a specific day in September for detailed info on the typical weather on that day in Joshua Tree. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Joshua Tree
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Average Weather in Joshua Tree by Month
Click on a month below to see detailed weather info for Joshua Tree. 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 Joshua Tree for all months at once
