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's arrival shows an average high-temperature of a still warm 77.9°F (25.5°C), hardly different from the previous month. An average low-temperature of 60.8°F (16°C) is observed in Casitas Springs, California, during the September nights.Humidity
In Casitas Springs, the average relative humidity in September is 53%.Rainfall
In Casitas Springs, in September, it is raining for 2.3 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, in Casitas Springs, California, there are 49.6 rainfall days, and 7.68" (195mm) of precipitation is accumulated.Daylight
In Casitas Springs, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:31 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:42 pm PDT.
Sunshine
The average sunshine in September in Casitas Springs is 11h.UV index
In Casitas Springs, California, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 during September leads to these advisories:
Exercise prevention - Warding off sunburn is urged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the temperature in September in Casitas Springs?
What is the average humidity in September in Casitas Springs?
How much does it rain in Casitas Springs in September?
What is the average length of the day in September in Casitas Springs?
When is the sunrise / sunset in September in Casitas Springs?
How long on average sun shines in September in Casitas Springs?
What is the UV index reading in September in Casitas Springs?
Average temperature in September
Casitas Springs, CA
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is December (58.8°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in September
Casitas Springs, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in September
Casitas Springs, CA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Casitas Springs, CA
- Average humidity in September: 53%
The month with the highest relative humidity is March (63%).
The months with the lowest relative humidity are October and November (52%).
Average rainfall in September
Casitas Springs, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in September
Casitas Springs, CA
- Average rainfall days in September: 2.3 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is August (1.3 days).
Average daylight in September /
Average sunshine in September
Casitas Springs, 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: 9h and 54min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in September
Casitas Springs, CA
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is October (25.7 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in September
Casitas Springs, 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 November and December (UV index 3).
Average cloud cover in September
Casitas Springs, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Casitas 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).
Casitas Springs, California, USA
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