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
Strathearn experiences a subtle adjustment in high-temperatures to a still warm 79.7°F (26.5°C) with the onset of September, maintaining near parity with August's 82.2°F (27.9°C). During September, Strathearn experiences a consistent low-temperature average of 62.1°F (16.7°C).Humidity
In Strathearn, the average relative humidity in September is 55%.Rainfall
In Strathearn, in September, it is raining for 2.7 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Strathearn, there are 53.7 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:40 pm PDT.
Sunshine
In Strathearn, the average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index in Strathearn is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Strathearn?
What is the average humidity in September in Strathearn?
How many days does it rain in September in Strathearn?
What is the average length of the day in September in Strathearn?
When is the sunrise / sunset in September in Strathearn?
How long on average sun shines in September in Strathearn?
How high is the UV index in September in Strathearn?
Average temperature in September
Strathearn, CA
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (46.4°F).
Average pressure in September
Strathearn, 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
Strathearn, CA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Strathearn, CA
- Average humidity in September: 55%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in September
Strathearn, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Strathearn, CA
- Average rainfall days in September: 2.7 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in September /
Average sunshine in September
Strathearn, 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: 10h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in September
Strathearn, CA
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in September
Strathearn, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Strathearn, CA
- Average cloud cover in September: 7
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
Strathearn, 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).
Strathearn, California, USA
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