September weather forecast
Fish Rock, CA

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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.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Fish Rock in September?

The average high-temperature, in September, in Fish Rock, is 80.1°F (26.7°C), while the average low-temperature is 53.2°F (11.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is appraised at 87.8°F (31°C).

What is the least humid month in Fish Rock?

July and September, with an average relative humidity of 60%, are the least humid months in Fish Rock.

What is the average humidity in September?

In Fish Rock, the average relative humidity in September is 60%.

How much does it rain in September?

In Fish Rock, in September, during 2.1 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

When it does not snow?

January, March through December are months without snowfall.

How many hours of daylight does Fish Rock have in September?

In Fish Rock, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, 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.

How many hours of sunshine does Fish Rock have in September?

The average sunshine duration in September is 10.9h.

What is the UV index intensity in September?

In Fish Rock, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Fish Rock, CA

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Fish Rock, 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 30min).

  • Average sunshine in September: 10h and 5min

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 - 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 - 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 - 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 - 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).

Fish Rock, California, USA

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