August weather forecast
Mendocino, CA

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Weather in August

August, the last month of the summer in Mendocino, is also an enjoyable month, with an average temperature fluctuating between 66.4°F (19.1°C) and 55°F (12.8°C).

Temperature

As Mendocino moves into August, a slight change to a still enjoyable 66.4°F (19.1°C) in the average high-temperature aligns it with July's readings. An average low-temperature of 55°F (12.8°C) is recorded during the nights in August in Mendocino.

Humidity

March, May and August, with an average relative humidity of 80%, are the most humid months in Mendocino.

Rainfall

The months with the least rainfall are June through August Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.

Snowfall

January, March through December are months without snowfall.

Ocean temperature

In Mendocino, the average seawater temperature in August is 54.1°F (12.3°C).
Note: It is life-risking to swim in 54.1°F (12.3°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.

Daylight

In Mendocino, the average length of the day in August is 13h and 40min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:26 pm. On the last day of August, in Mendocino, sunrise is at 6:43 am and sunset at 7:46 pm PDT.

Sunshine

The months with the most sunshine in Mendocino are July and August, with an average of 11.8h of sunshine.

UV index

June through August, 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 medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, a regular UV index of 5 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What are the temperatures in Mendocino in August?

An average high-temperature, in August, in Mendocino, is 66.4°F (19.1°C) and the average low-temperature is 55°F (12.8°C).

What are the most humid months in Mendocino?

March, May and August, with an average relative humidity of 80%, are most humid months.

What is the average humidity in August in Mendocino?

In August, the average relative humidity in Mendocino is 80%.

What is the driest month in Mendocino?

June through August are months with the least rain in Mendocino when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.

How many days does it rain in August in Mendocino?

In Mendocino, California, in August, during 1.8 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

When it does not snow in Mendocino?

January, March through December are months without snowfall in Mendocino, California.

What is the ocean temperature in August in Mendocino?

In August, the average ocean temperature in Mendocino, California, is 54.1°F (12.3°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 August in Mendocino?

The average day length in August in Mendocino is 13h and 40min.

What time are sunrise and sunset in August in Mendocino?

On the first day of August, sunrise is at 6:16 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:46 pm PDT.

What are the months with the most sunshine in Mendocino?

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

How many hours of sunshine does Mendocino have in August?

In Mendocino, California, the average sunshine duration in August is 11.8h.

What is the month with the highest UV index in Mendocino?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Mendocino, California.

What is the UV index reading in August in Mendocino?

The average daily maximum UV index in August in Mendocino, California, is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to 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 August
Mendocino, CA

Average temperature in August - Mendocino, CA
  • Average high temperature in August: 66.4°F

The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).

  • Average low temperature in August: 55°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

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Average pressure in August
Mendocino, CA

Average pressure in August - Mendocino, CA
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in August
Mendocino, CA

Average wind speed in August - Mendocino, CA
  • Average wind speed in August: 7.8mph

The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in August
Mendocino, CA

Average humidity in August - Mendocino, CA
  • Average humidity in August: 80%

The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in August
Mendocino, CA

Average rainfall in August - Mendocino, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").

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Average rainfall days in August
Mendocino, CA

Average rainfall days in August - Mendocino, CA
  • Average rainfall days in August: 1.8 days

The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).

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Average snowfall in August
Mendocino, CA

Average snowfall in August - Mendocino, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Mendocino, CA

Average snowfall days in August - Mendocino, CA
  • Average snowfall days in August: 0 days

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

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Average sea temperature in August
Mendocino, CA

Average sea temperature in August - Mendocino, CA
  • Average sea temperature in August: 54.2°F

The best month for swimming (with the highest average sea temperature) is October (55.6°F).
The coldest month (with the lowest average sea temperature) is April (52.1°F).

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Average daylight in August /
Average sunshine in August
Mendocino, CA

Average daylight in August / Average sunshine in August - Mendocino, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 11h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in August
Mendocino, CA

Average sunshine days in August - Mendocino, CA
  • Average sunshine days in August: 27.7 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).

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Average UV index in August
Mendocino, CA

Average UV index in August - Mendocino, CA
  • Average UV index in August: 5

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

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Average cloud cover in August
Mendocino, CA

Average cloud cover in August - Mendocino, CA
  • Average cloud cover in August: 11

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in August
Mendocino, CA

Average visibility in August - Mendocino, CA
  • Average visibility in August: 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).

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Mendocino, California, USA

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