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
September brings a slight decrease in temperature, down from 94.6°F (34.8°C) in August to a still tropical 88.7°F (31.5°C). September's average low-temperature reading settles at an agreeable 72°F (22.2°C).Humidity
The average relative humidity in September is 33%.Rainfall
In Thermal, in September, it is raining for 5 days, with typically 0.31" (8mm) of accumulated precipitation. In Thermal, during the entire year, the rain falls for 46.2 days and collects up to 4.09" (104mm) of precipitation.Daylight
In September, the average length of the day in Thermal is 12h and 22min.On the first day of September in Thermal, sunrise is at 6:19 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:29 pm PDT.
Sunshine
In September, the average sunshine is 10.4h.UV index
In September, the average daily maximum UV index in Thermal is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 7 in September transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
How hot is it in Thermal in September?
What is the average humidity in September in Thermal?
How many days does it rain in September in Thermal?
How many hours of daylight does Thermal have in September?
When are sunrise and sunset in September in Thermal?
How long on average sun shines in September in Thermal?
What is the UV index reading in September in Thermal?
Average temperature in September
Thermal, CA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in September: 72°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in September
Thermal, CA
- Average pressure in September: 29.83"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Thermal, CA
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is May (8.2mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Thermal, CA
- Average humidity in September: 33%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (29%).
Average rainfall in September
Thermal, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is July (0.79").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in September
Thermal, CA
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is July (6.9 days).
The month with the least rainy days is June (1.5 days).
Average daylight in September /
Average sunshine in September
Thermal, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
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: 7h and 6min).
Average sunshine days in September
Thermal, CA
- Average sunshine days in September: 23.1 days
The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in September
Thermal, CA
- Average UV index in September: 7
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Thermal, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in September
Thermal, 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).
Thermal, California, USA
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