September weather forecast and climate
Bodega Bay, CA

Weather in September

September, the first month of the autumn, in Bodega Bay, is also an agreeable month, with average temperature varying between 72.5°F (22.5°C) and 54.7°F (12.6°C).

Temperature

With an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 54.7°F (12.6°C), September is the warmest month.

Humidity

Months with the lowest humidity in Bodega Bay are September and October, with an average relative humidity of 71%.

Rainfall

In Bodega Bay, during September, the rain falls for 2.7 days and regularly aggregates up to 0.12" (3mm) of precipitation. Throughout the year, in Bodega Bay, there are 83.1 rainfall days, and 20" (508mm) of precipitation is accumulated.

Ocean temperature

In Bodega Bay, the average water temperature is 55.9°F (13.3°C).
Note: Swimming in 55.9°F (13.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day is 12.4h.

Sunshine

The average sunshine in Bodega Bay, California, is 10.8h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index in Bodega Bay. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Bodega Bay?

The warmest month in Bodega Bay, California, is September, with an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 54.7°F (12.6°C).

What is the temperature in September in Bodega Bay?

In Bodega Bay, in September, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 54.7°F (12.6°C).

What is the least humid month in Bodega Bay?

September and October, with an average relative humidity of 71%, are the least humid months.

What is the average humidity in September in Bodega Bay?

In September, the average relative humidity is 71%.

How many days does it rain in September in Bodega Bay?

In Bodega Bay, in September, during 2.7 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

How cold is the water in September in Bodega Bay?

In Bodega Bay, the average seawater temperature in September is 55.9°F (13.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in September in Bodega Bay?

In September, the average length of the day in Bodega Bay is 12.4h.

How long on average sun shines in September in Bodega Bay?

In Bodega Bay, the average sunshine in September is 10.8h.

When is the highest UV index in Bodega Bay?

Months with the highest UV index in Bodega Bay are June through September, with an average maximum UV index of 5.

What is the UV index intensity in September in Bodega Bay?

In Bodega Bay, California, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Bodega Bay, CA

Average temperature in September - Bodega Bay, CA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in September: 54.7°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in September
Bodega Bay, CA

Average pressure in September - Bodega Bay, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are August and September (29.92").

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Average wind speed in September
Bodega Bay, CA

Average wind speed in September - Bodega Bay, CA
  • Average wind speed in September: 7.4mph

The windiest month (with the highest average wind speed) is May (9.9mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).

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Average humidity in September
Bodega Bay, CA

Average humidity in September - Bodega Bay, CA
  • Average humidity in September: 71%

The month with the highest relative humidity is March (78%).
Months with the lowest relative humidity are September and October (71%).

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Average rainfall in September
Bodega Bay, CA

Average rainfall in September - Bodega Bay, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in September
Bodega Bay, CA

Average rainfall days in September - Bodega Bay, CA
  • Average rainfall days in September: 2.7 days

The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (1.1 days).

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Average sea temperature in September
Bodega Bay, CA

Average sea temperature in September - Bodega Bay, CA
  • Average sea temperature in September: 55.9°F

The best month for swimming (with the highest average sea temperature) is October (56.2°F).
The coldest month (with the lowest average sea temperature) is June (51.6°F).

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Average daylight in September /
Average sunshine in September
Bodega Bay, CA

Average daylight in September / Average sunshine in September - Bodega Bay, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 10.8h

Months with the most sunshine are July and August (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in September
Bodega Bay, CA

Average sunshine days in September - Bodega Bay, 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 (14.8 days).

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Average UV index in September
Bodega Bay, CA

Average UV index in September - Bodega Bay, CA
  • Average UV index in September: 5

Months with the highest UV index are June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Bodega Bay, CA

Average cloud cover in September - Bodega Bay, CA
  • Average cloud cover in September: 12

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 12).

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Average visibility in September
Bodega Bay, CA

Average visibility in September - Bodega Bay, CA
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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