September weather forecastCantua Creek, CA
September
Weather in September
September, the first month of the autumn in Cantua Creek, is still a tropical month, with an average temperature ranging between min 63.5°F (17.5°C) and max 92.7°F (33.7°C).Temperature
With the onset of September, Cantua Creek's average high-temperature slightly adjusts, moderately receding from August's very hot 99.9°F (37.7°C) to a hot 92.7°F (33.7°C). Cantua Creek witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 63.5°F (17.5°C) throughout September.Humidity
In September, the average relative humidity is 34%.Rainfall
June through September are months with the least rain in Cantua Creek when the rain falls for 0.5 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
The average length of the day in September is 12h and 24min.On the first day of September in Cantua Creek, sunrise is at 6:33 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:45 pm PDT.
Sunshine
The average sunshine in September in Cantua Creek, California, is 11.3h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cantua Creek, CA
- Average high temperature in September: 92.7°F
The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in September
Cantua Creek, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Cantua Creek, CA
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in September
Cantua Creek, CA
- Average humidity in September: 34%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in September
Cantua Creek, CA
- Average rainfall in September: 0.04"
The wettest months (with the highest rainfall) are February and March (0.43").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in September
Cantua Creek, CA
- Average rainfall days in September: 0.5 days
The month with the highest number of rainy days is March (7 days).
The months with the least rainy days are August and September (0.5 days).
Average daylight in September /
Average sunshine in September
Cantua Creek, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).
Average sunshine days in September
Cantua Creek, CA
- Average sunshine days in September: 28.9 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is February (22 days).
Average UV index in September
Cantua Creek, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Cantua Creek, CA
- Average cloud cover in September: 5
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in September
Cantua Creek, 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).





