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
Casmalia starts September with an average high-temperature of a still warm 79.2°F (26.2°C), a minor shift from August's 79.3°F (26.3°C). During the month of September, an average low-temperature of 59.9°F (15.5°C) is recorded.Humidity
The average relative humidity in September is 59%.Rainfall
In Casmalia, in September, it is raining for 2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, there are 43.9 rainfall days, and 6.93" (176mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:46 pm PDT.
Sunshine
The average sunshine in September is 11.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Casmalia have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Casmalia, CA
- Average high temperature in September: 79.2°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46.6°F).
Average pressure in September
Casmalia, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in September
Casmalia, CA
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are April and May (7.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in September
Casmalia, CA
- Average humidity in September: 59%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in September
Casmalia, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is March (1.5").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
Casmalia, CA
- Average rainfall days in September: 2 days
The month with the highest number of rainy days is March (7.9 days).
The months with the least rainy days are June and August (0.8 days).
Average daylight in September /
Average sunshine in September
Casmalia, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 11h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Casmalia, CA
- Average sunshine days in September: 28 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in September
Casmalia, 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, March, November and December (UV index 4).
Average cloud cover in September
Casmalia, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Casmalia, 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).
Casmalia, California, USA
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