Joshua Tree Weather in September: Temperature, Precipitation, Wind
Joshua Tree, United States in September experiences warm and dry conditions typical of its desert climate. The average temperature hovers around 26.7°C (80.0°F), with daytime highs reaching 33.1°C (91.6°F) and nighttime lows dropping to 19.6°C (67.3°F). The heat index, or “feels like” temperature, averages 25.9°C (78.7°F), indicating relatively comfortable conditions despite the warmth.
Humidity levels remain low in September, averaging 31.6%. Precipitation is scarce, with only 0.02 mm (0.0008 inches) of rainfall expected throughout the month. Rain occurs on approximately 3 days, with a 10% probability of precipitation on any given day. Cloud cover is minimal, averaging just 4.8%, resulting in abundant sunshine and clear skies.
Wind plays a significant role in Joshua Tree’s September weather. Average wind speeds reach 23.9 km/h (14.9 mph), with gusts up to 42.3 km/h (26.3 mph). These winds contribute to the area’s arid conditions and can create localized dust storms.
UV index levels are high in September, averaging 8.9. Visitors to popular spots like Hidden Valley or Keys View should take precautions against sun exposure. Visibility remains excellent at 15.8 km (9.8 miles), allowing for expansive views of the desert landscape.
Atmospheric pressure averages 1012.2 hPa, indicating stable weather conditions. Sunrise occurs around 6:28 AM, while sunset takes place at approximately 6:51 PM, providing ample daylight hours for outdoor activities in Joshua Tree National Park.
What is the temperature in Joshua Tree in September?
Average air temperature in Joshua Tree is 26.7°C (80°F) in September. The outside temperature in Joshua Tree feels like 25.9°C (78.7°F) on a typical September day. The highest average temperature during sunny days is 33.1°C (91.6°F) and feels like 31.3°C (88.4°F). The lowest average temperature after dark is 19.6°C (67.3°F) which feels like 19.6°C (67.2°F).
How hot is Joshua Tree in September?
The hot temperature in September in Joshua Tree rises to 39.2°C (102.6°F) on sunny days with low cloud coverage and 31.6% humidity. During hottest days of September it feels like 37.8 °C (100°F). The average maximum temp in Joshua Tree is 33.1°C (100°F) during day time in September.
How cold is Joshua Tree in September?
The coldest temp in Joshua Tree in September drops to 15.5°C (59.9°F) during the cold nights. With 23.9km/h (14.9mph) winds and 31.6% humidity it feels like 15.5°C (59.9°F) on the coldest nights. The average minimum temperature is 19.6°C (67.3°F) during night time in September.
Does it rain in Joshua Tree in September?
Yes, it rains for 3 days in Joshua Tree, United States in September averaging 0.02 mm of precipitation. Joshua Tree has a 10% chance for rain throughout the entire month of September.
How much does it rain in Joshua Tree throughout September?
Joshua Tree has 0.02 mm (0 inch) of rain per day on average in September. It rains for an average of 3 days out of the entire month.
Is Joshua Tree windy in September?
The average speed of wind in Joshua Tree, United States during September is 23.9km/h (14.9mph) and average windgust is 42.3km/h (26.3mph). On some days in September wind can reach up to 49.2km/h (30.6mph).
What is the direction of the wind in Joshua Tree in September?
Most days of September the wind is blowing from West direction in Joshua Tree.
What are the humidity levels in Joshua Tree in September?
The average humidity levels in Joshua Tree in September are 31.6%. Daily humidity levels in Joshua Tree range from 17.2% to 63.5% during September.
How many hours of daylight are in Joshua Tree in September?
Joshua Tree has 12 hours 22 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Joshua Tree in September is at 6:28:44 and the sunset is at 18:51:21.
What is the cloud coverage in Joshua Tree in September?
Clouds cover 4.8% of the sky on average throughout September in Joshua Tree. The cloud coverage ranges from 0% to 35% depending on the day of the month.
What is the UV level in September in Joshua Tree?
The average UV index in Joshua Tree is 8.9 in September. UV levels change throughout the month and range from 7 to 10.
What is the solar radiation in Joshua Tree in September?
The average solar radiation is 246.7 W/m2 (Watts per square meter) in Joshua Tree during September. However solar radiation levels change throughout the month and range from 114.5 W/m2 to 288.5 W/m2.
What is the solar energy during September in Joshua Tree?
The average solar energy during September in Joshua Tree is 21.3 MJ/m2 (megajoules per square metre). Solar energy ranges from 9.8 MJ/m2, to 24.9 MJ/m2 during September.
Are there severe weather risks in Joshua Tree in September?
Yes, there is a 11.3% risk for severe weather in Joshua Tree, United States in September.
What is the air pressure in Joshua Tree in September?
On average the air pressure in Joshua Tree in September is 1012.2 mb (millibars). Throughout the month the sea level pressure ranges from 1007.2 mb to 1015.7 mb.
What is the visibility in Joshua Tree in September?
The average daylight visibility in Joshua Tree in September is 15.8 km (9.8 miles). Depending on the precipitation the visibility ranges from 15.1 km (9.4 miles) to 16 km (9.9 miles) throughout September.
What is the dew point in Joshua Tree in September?
The average dew point in Joshua Tree during September is 6.9°C (44.4°F).
Where is the data for Joshua Tree climate in September coming from?
The climate data for Joshua Tree, California, United States in September is collected from the following weather stations.
- TWENTYNINE PALMS MC, CA US
- PALM SPRINGS ASOS, CA US
- BIG BEAR CITY AIRPORT, CA US
- CW1828 Joshua Tree CA US
- KL35
- KNXP
- KPSP