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
Foster Park signifies an average high-temperature of a still moderately hot 77.9°F (25.5°C) in September, closely mirroring the 79°F (26.1°C) of August. During the nights in September, Foster Park experiences a consistent average temperature of 60.8°F (16°C).Humidity
In Foster Park, the average relative humidity in September is 53%.Rainfall
In Foster Park, in September, during 2.3 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 49.6 rainfall days, and 7.68" (195mm) of precipitation is accumulated.Daylight
The average length of the day in September in Foster Park, California, is 12h and 22min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:22 pm. On the last day of September, in Foster Park, sunrise is at 6:51 am and sunset at 6:42 pm PDT.
Sunshine
In September, the average sunshine in Foster Park is 11h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What are September temperatures in Foster Park?
What is the average humidity in September in Foster Park?
How many days does it rain in September in Foster Park?
What is the average length of the day in September in Foster Park?
When is the sunrise / sunset in September in Foster Park?
How long on average sun shines in September in Foster Park?
What is the UV index intensity in September in Foster Park?
Average temperature in September
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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
Foster Park, 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).
Foster Park, California, USA
Weather forecast for your location
2. Allow the app to use your location
