August weather forecast and climate
Stinson Beach, CA

Weather in August

The last month of the summer, August, is also an agreeable month in Stinson Beach, California, with average temperature fluctuating between 69.4°F (20.8°C) and 56.1°F (13.4°C).

Temperature

In Stinson Beach, the average high-temperature is relatively the same as in July - a still pleasant 69.4°F (20.8°C). In August, the average low-temperature is 56.1°F (13.4°C).

Humidity

With an average relative humidity of 78%, August is the most humid month in Stinson Beach.

Rainfall

Months with the least rainfall in Stinson Beach are July and August Rain falls for 2.7 days and accumulates 0.08" (2mm) of rain.

Snowfall

In Stinson Beach, California, snow does not fall in January through November.

Daylight

In Stinson Beach, the average length of the day is 13.6h.

Sunshine

The average sunshine in August is 10.9h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: In August, 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the most humid month in Stinson Beach?

The most humid month is August, with an average relative humidity of 78%.

What is the average humidity in August in Stinson Beach?

In Stinson Beach, the average relative humidity in August is 78%.

What is the driest month in Stinson Beach?

July and August are months with the least rain in Stinson Beach, California, when the rain falls for 2.7 days and typically aggregates up to 0.08" (2mm) of rain.

How many days does it rain in August in Stinson Beach?

In August, in Stinson Beach, the rain falls for 2.7 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

When it does not snow in Stinson Beach?

January through November are months without snowfall.

What is the average length of the day in August in Stinson Beach?

In Stinson Beach, California, the average length of the day in August is 13.6h.

How many hours of sunshine does Stinson Beach have in August?

The average sunshine in August is 10.9h.

What is the month with the highest UV index in Stinson Beach?

June through September, with an average maximum UV index of 5, are months with the highest UV index in Stinson Beach.

What is the UV index reading in August in Stinson Beach?

In Stinson Beach, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in August
Stinson Beach, CA

Average temperature in August - Stinson Beach, CA
  • Average high temperature in August: 69.4°F

The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in August: 56.1°F

The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).

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Average pressure in August
Stinson Beach, CA

Average pressure in August - Stinson Beach, CA
  • Average pressure in August: 29.92"

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

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Average wind speed in August
Stinson Beach, CA

Average wind speed in August - Stinson Beach, CA
  • Average wind speed in August: 6.5mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).

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Average humidity in August
Stinson Beach, CA

Average humidity in August - Stinson Beach, CA
  • Average humidity in August: 78%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
Stinson Beach, CA

Average rainfall in August - Stinson Beach, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in August
Stinson Beach, CA

Average rainfall days in August - Stinson Beach, CA
  • Average rainfall days in August: 2.7 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.3 days).

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Average snowfall days in August
Stinson Beach, CA

Average snowfall days in August - Stinson Beach, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
Stinson Beach, CA

Average daylight in August / Average sunshine in August - Stinson Beach, CA
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 10.9h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in August
Stinson Beach, CA

Average sunshine days in August - Stinson Beach, CA
  • Average sunshine days in August: 23.4 days

Months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).

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Average UV index in August
Stinson Beach, CA

Average UV index in August - Stinson Beach, CA
  • Average UV index in August: 5

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

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Average cloud cover in August
Stinson Beach, CA

Average cloud cover in August - Stinson Beach, CA
  • Average cloud cover in August: 25

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in August
Stinson Beach, CA

Average visibility in August - Stinson Beach, CA
  • Average visibility in August: 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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