September weather forecastFish Rock, CA
September
Weather in September
September, the first month of the autumn in Fish Rock, is also a moderately hot month, with an average temperature fluctuating between 80.1°F (26.7°C) and 53.2°F (11.8°C).Temperature
With September's advent, Fish Rock, California, sees an average high-temperature of a still moderately hot 80.1°F (26.7°C), subtly shifted from August's 83.5°F (28.6°C). In September, the temperature sees a substantial plunge from daytime highs to a low average of 53.2°F (11.8°C).Humidity
The months with the lowest humidity are July and September, with an average relative humidity of 60%.Rainfall
In Fish Rock, in September, it is raining for 2.1 days, with typically 0.16" (4mm) of accumulated precipitation. In Fish Rock, during the entire year, the rain falls for 83.1 days and collects up to 21.38" (543mm) of precipitation.Snowfall
In Fish Rock, snow does not fall in January, March through December.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Fish Rock, California, sunrise is at 6:44 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:57 pm PDT.
Sunshine
The average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fish Rock, CA
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (39.9°F).
Average pressure in September
Fish Rock, 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
Fish Rock, CA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in September
Fish Rock, CA
- Average humidity in September: 60%
The month with the highest relative humidity is March (78%).
The months with the lowest relative humidity are July and September (60%).
Average rainfall in September
Fish Rock, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is February (4.49").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Fish Rock, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (15 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in September
Fish Rock, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Fish Rock, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Fish Rock, CA
- Average daylight in September: 12h and 24min
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 30min).
- Average sunshine in September: 10h and 54min
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: 5h and 24min).
Average sunshine days in September
Fish Rock, CA
- Average sunshine days in September: 27.1 days
The months with the most sunshine days are July and August (29.6 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in September
Fish Rock, 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 February, November and December (UV index 3).
Average cloud cover in September
Fish Rock, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Fish Rock, 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).





