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
Stepping into September, Jenner records an average high-temperature of a still moderately hot 79.9°F (26.6°C), almost consistent with August. Jenner observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 53.4°F (11.9°C) throughout the month of September.Humidity
With an average relative humidity of 62%, September is the least humid month.Rainfall
In September, the rain falls for 1.9 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. In Jenner, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September in Jenner is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 in September translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are the temperatures in Jenner in September?
What is the least humid month in Jenner?
What is the average humidity in September in Jenner?
How much does it rain in Jenner in September?
How many hours of daylight does Jenner have in September?
When are sunrise and sunset in September in Jenner?
How long on average sun shines in September in Jenner?
What is the UV index reading in September in Jenner?
Average temperature in September
Jenner, CA
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in September: 53.4°F
The months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in September
Jenner, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Jenner, CA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).
Average humidity in September
Jenner, CA
- Average humidity in September: 62%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall in September
Jenner, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Jenner, CA
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in September /
Average sunshine in September
Jenner, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Jenner, CA
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).
Average UV index in September
Jenner, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Jenner, CA
- Average cloud cover in September: 12
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Jenner, 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).
Jenner, California, USA
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