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 experiences an average high-temperature of a still moderately hot 78.3°F (25.7°C), barely different from August's 78.6°F (25.9°C). The anticipated average low-temperature for September, a cool 54.5°F (12.5°C), shows a substantial deviation from the daytime maximums.Humidity
September and October, with an average relative humidity of 64%, are the least humid months.Rainfall
In Corralitos, California, during September, the rain falls for 2.5 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, there are 67.1 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Daylight
In September, the average length of the day in Corralitos is 12h and 24min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:51 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the least humid month?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September in Corralitos?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Corralitos, CA
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (57.9°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is September (54.5°F).
The coldest months (with the lowest average low temperature) are February and March (43.2°F).
Average pressure in September
Corralitos, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in September
Corralitos, CA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest months (with the lowest average wind speed) are October and November (4.5mph).
Average humidity in September
Corralitos, CA
- Average humidity in September: 64%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (64%).
Average rainfall in September
Corralitos, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Corralitos, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is August (0.8 days).
Average daylight in September /
Average sunshine in September
Corralitos, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Corralitos, CA
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in September
Corralitos, CA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Corralitos, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Corralitos, 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).
Corralitos, California, USA
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