September weather forecastCoto de Caza, CA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Coto de Caza, California, with an average temperature fluctuating between 63.3°F (17.4°C) and 79.7°F (26.5°C).Temperature
September's weather records an average high-temperature of a still moderately hot 79.7°F (26.5°C), showing little deviation from August. During the month of September, the temperature in Coto de Caza falls to an average of 63.3°F (17.4°C).Humidity
In September, the average relative humidity is 63%.Rainfall
In Coto de Caza, during September, the rain falls for 4.4 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, in Coto de Caza, there are 64.1 rainfall days, and 5.67" (144mm) of precipitation is accumulated.Daylight
In Coto de Caza, California, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:35 pm PDT.
Sunshine
In September, the average sunshine in Coto de Caza is 10.5h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coto de Caza, CA
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in September
Coto de Caza, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in September
Coto de Caza, CA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Coto de Caza, CA
- Average humidity in September: 63%
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in September
Coto de Caza, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is December (0.98").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Coto de Caza, CA
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.3 days).
Average daylight in September /
Average sunshine in September
Coto de Caza, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 30min
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 36min).
Average sunshine days in September
Coto de Caza, CA
- Average sunshine days in September: 22.1 days
The months with the most sunshine days are January and August (24.4 days).
The month with the least sunshine days is May (19.5 days).
Average UV index in September
Coto de Caza, CA
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (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
Coto de Caza, CA
- Average cloud cover in September: 11
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Coto de Caza, 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).
