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 sea temperature 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
Temperature records mark September as the warmest month, with highs averaging 77.5°F (25.3°C) and lows at 56.7°F (13.7°C).Humidity
September and October, with an average relative humidity of 63%, are the least humid months.Rainfall
In Pinole, in September, it is raining for 2.3 days, with typically 0.12" (3mm) of accumulated precipitation. In Pinole, during the entire year, the rain falls for 72.2 days and collects up to 12.83" (326mm) of precipitation.Ocean temperature
September is the month with the warmest seawater in Pinole, with an average ocean temperature of 57°F (13.9°C).Note: Swimming in 57°F (13.9°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In September, the average length of the day in Pinole is 12h and 25min.On the first day of September in Pinole, sunrise is at 6:39 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:53 pm PDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
April through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are the warmest months in Pinole?
What is the temperature in September in Pinole?
What is the least humid month in Pinole?
What is the average humidity in September in Pinole?
How much does it rain in Pinole in September?
What is the month with the warmest ocean in Pinole?
What is the water temperature in September in Pinole?
How many hours of daylight does Pinole have in September?
When is the sunrise / sunset in September in Pinole?
How long on average sun shines in September in Pinole?
What is the month with the highest UV index in Pinole?
What is the UV index reading in September in Pinole?
Average temperature in September
Pinole, CA
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is September (77.5°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are January and December (43.9°F).
Average pressure in September
Pinole, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Pinole, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is May (7.5mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).
Average humidity in September
Pinole, CA
- Average humidity in September: 63%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall in September
Pinole, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (2.76").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Pinole, CA
- Average rainfall days in September: 2.3 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (1.1 days).
Average sea temperature in September
Pinole, CA
- Average sea temperature in September: 57°F
The best month for swimming (with the highest average sea temperature) is September (57°F).
The coldest month (with the lowest average sea temperature) is April (52.6°F).
Average daylight in September /
Average sunshine in September
Pinole, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Pinole, CA
- Average sunshine days in September: 25.9 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (16.4 days).
Average UV index in September
Pinole, CA
- Average UV index in September: 5
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Pinole, CA
- Average cloud cover in September: 13
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Pinole, 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).
Pinole, California, USA
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