Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's tropical 93.7°F (34.3°C) to a still hot 87.3°F (30.7°C). An average low-temperature of 66.9°F (19.4°C) is observed during September nights.Humidity
In Borrego Springs, the average relative humidity in September is 38%.Rainfall
In September, the rain falls for 6.2 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. In Borrego Springs, during the entire year, the rain falls for 60.2 days and collects up to 7.68" (195mm) of precipitation.Daylight
In September, the average length of the day in Borrego Springs, California, is 12h and 22min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:30 pm PDT.
Sunshine
The average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Borrego Springs have in September?
What time are sunrise and sunset in September in Borrego Springs?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Borrego Springs, CA
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (93.7°F).
The month with the lowest average high temperature is December (59.4°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is December (43.3°F).
Average pressure in September
Borrego Springs, CA
- Average pressure in September: 29.84"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Borrego Springs, CA
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in September
Borrego Springs, CA
- Average humidity in September: 38%
The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are June and August (34%).
Average rainfall in September
Borrego Springs, CA
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (1.38").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in September
Borrego Springs, CA
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.8 days).
Average daylight in September /
Average sunshine in September
Borrego Springs, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Borrego Springs, CA
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (20.4 days).
Average UV index in September
Borrego Springs, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Borrego Springs, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Borrego Springs, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Borrego Springs, California, USA
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