August weather forecast and climate
Monterey, CA

The rugged mountainous coast of Big Sur in Monterey, California
The rugged mountainous coast of Big Sur in Monterey, California

Weather in August

August, the last month of the summer, in Monterey, is also an agreeable month, with average temperature ranging between max 72.1°F (22.3°C) and min 55.2°F (12.9°C).

Temperature

In Monterey, California, the average high-temperature in August is essentially the same as in July - a still agreeable 72.1°F (22.3°C). The average low-temperature, in Monterey, is 55.2°F (12.9°C).

Humidity

The average relative humidity in Monterey is 75%.

Rainfall

Months with the least rainfall are July and August Rain falls for 1.1 days and accumulates 0.08" (2mm) of rain.

Ocean temperature

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Monterey, California.
Note: Swimming in 58.1°F (14.5°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 13.5h.

Sunshine

In Monterey, California, the average sunshine is 11.9h.

UV index

Months with the highest UV index in Monterey are June through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in August interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 temperature in August in Monterey?

In Monterey, California, in August, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in August in Monterey?

The average relative humidity in August in Monterey, California, is 75%.

How much does it rain in Monterey in August?

In Monterey, California, during August, the rain falls for 1.1 days and regularly aggregates up to 0.08" (2mm) of precipitation.

What is the driest month in Monterey?

July and August are months with the least rain in Monterey when the rain falls for 1.1 days and typically aggregates up to 0.08" (2mm) of rain.

What months are the ocean warmest in Monterey?

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Monterey.

What is the water temperature in August in Monterey?

In August, the average ocean temperature in Monterey is 58.1°F (14.5°C). Swimming in 58.1°F (14.5°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.

What is the average length of the day in August in Monterey?

In August, the average length of the day in Monterey, California, is 13.5h.

How long on average sun shines in August in Monterey?

In August, the average sunshine in Monterey, California, is 11.9h.

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

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

How high is the UV index in August in Monterey?

In Monterey, California, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in August
Monterey, CA

Average temperature in August - Monterey, CA
  • Average high temperature in August: 72.1°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 (57.2°F).

  • Average low temperature in August: 55.2°F

Months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in August
Monterey, CA

Average pressure in August - Monterey, CA
  • Average pressure in August: 29.93"

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

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Average wind speed in August
Monterey, CA

Average wind speed in August - Monterey, CA
  • Average wind speed in August: 5.6mph

The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in August
Monterey, CA

Average humidity in August - Monterey, CA
  • Average humidity in August: 75%

Months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).

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Average rainfall in August
Monterey, CA

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

The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in August
Monterey, CA

Average rainfall days in August - Monterey, CA
  • Average rainfall days in August: 1.1 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).

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Average sea temperature in August
Monterey, CA

Average sea temperature in August - Monterey, CA
  • Average sea temperature in August: 58.1°F

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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

Average daylight in August / Average sunshine in August - Monterey, CA
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 11.9h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in August
Monterey, CA

Average sunshine days in August - Monterey, CA
  • Average sunshine days in August: 27.2 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in August
Monterey, CA

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

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

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Average cloud cover in August
Monterey, CA

Average cloud cover in August - Monterey, CA
  • Average cloud cover in August: 12

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in August
Monterey, CA

Average visibility in August - Monterey, 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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