August weather forecast and climate
O'Brien, CA

Weather in August

August, the last month of the summer, in O'Brien, is also a hot month, with average temperature fluctuating between 58.6°F (14.8°C) and 90.1°F (32.3°C).

Temperature

In O'Brien, the average high-temperature in August is practically the same as in July - a still hot 90.1°F (32.3°C). The average low-temperature, in August, is 58.6°F (14.8°C).

Humidity

With an average relative humidity of 37%, August is the least humid month in O'Brien.

Rainfall

In O'Brien, California, during 1.7 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, there are 102.3 rainfall days, and 24.21" (615mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day is 13.7h.

Sunshine

In August, the average sunshine is 11.9h.

UV index

The average daily maximum UV index in O'Brien is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 O'Brien?

In O'Brien, California, in August, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 58.6°F (14.8°C).

What is the least humid month in O'Brien?

August is the least humid month in O'Brien, California, with an average relative humidity of 37%.

What is the average humidity in August in O'Brien?

In O'Brien, California, the average relative humidity in August is 37%.

How many days does it rain in August in O'Brien?

In O'Brien, in August, it is raining for 1.7 days, with typically 0.16" (4mm) of accumulated precipitation.

When it does not snow in O'Brien?

April through October are months without snowfall in O'Brien, California.

What is the average length of the day in August in O'Brien?

The average length of the day in August in O'Brien, California, is 13.7h.

How many hours of sunshine does O'Brien have in August?

The average sunshine in August in O'Brien is 11.9h.

What is the UV index reading in August in O'Brien?

In August, the average daily maximum UV index in O'Brien, California, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in August
O'Brien, CA

Average temperature in August - O
  • Average high temperature in August: 90.1°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (47.8°F).

  • Average low temperature in August: 58.6°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

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Average pressure in August
O'Brien, CA

Average pressure in August - O
  • Average pressure in August: 29.92"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is August (29.92").

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Average wind speed in August
O'Brien, CA

Average wind speed in August - O
  • Average wind speed in August: 4.5mph

The windiest months (with the highest average wind speed) are March and October (5.3mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).

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Average humidity in August
O'Brien, CA

Average humidity in August - O
  • Average humidity in August: 37%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in August
O'Brien, CA

Average rainfall in August - O
  • Average rainfall in August: 0.16"

The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in August
O'Brien, CA

Average rainfall days in August - O
  • Average rainfall days in August: 1.7 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.7 days).

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Average snowfall in August
O'Brien, CA

Average snowfall in August - O
  • Average snowfall in August: 0"

The month with the highest snowfall is November (1.3").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
O'Brien, CA

Average snowfall days in August - O
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.9 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
O'Brien, CA

Average daylight in August / Average sunshine in August - O
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 11.9h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in August
O'Brien, CA

Average sunshine days in August - O
  • Average sunshine days in August: 27.1 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (11.8 days).

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Average UV index in August
O'Brien, CA

Average UV index in August - O
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in August
O'Brien, CA

Average cloud cover in August - O
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in August
O'Brien, CA

Average visibility in August - O
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

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