August weather forecast and climate
Whittier, CA

Weather in August

The last month of the summer, August, is a tropical month in Whittier, California, with average temperature ranging between min 65.8°F (18.8°C) and max 86.5°F (30.3°C).

Temperature

August is the warmest month, with an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 65.8°F (18.8°C).

Heat index

The average heat index is appraised at a hot 90°F (32.2°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, metabolic differences, pregnancy), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in Whittier is 54%.

Rainfall

In Whittier, during 1.3 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Whittier, during the entire year, the rain falls for 38.2 days and collects up to 5.28" (134mm) of precipitation.

Daylight

The average length of the day in Whittier is 13.4h.

Sunshine

Months with the most sunshine in Whittier are July and August, with an average of 12h of sunshine.

UV index

With an average maximum UV index of 7, August is the month with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 7 in August transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Whittier?

The warmest month in Whittier, California, is August, with an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 65.8°F (18.8°C).

What is the temperature in August in Whittier?

In August, in Whittier, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines relative humidity and air temperature, is evaluated at 90°F (32.2°C).

What is the average humidity in August in Whittier?

In Whittier, the average relative humidity in August is 54%.

How much does it rain in Whittier in August?

In August, in Whittier, California, the rain falls for 1.3 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

How many hours of daylight does Whittier have in August?

In Whittier, the average length of the day in August is 13.4h.

What is the month with the most sunshine in Whittier?

Months with the most sunshine in Whittier, California, are July and August, with an average of 12h of sunshine.

How long on average sun shines in August in Whittier?

The average sunshine in August is 12h.

When is the highest UV index in Whittier?

August is the month with the highest UV index in Whittier, California, with an average maximum UV index of 7.

How high is the UV index in August in Whittier?

The average daily maximum UV index in August in Whittier is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in August
Whittier, CA

Average temperature in August - Whittier, CA
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (64.9°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).

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Average pressure in August
Whittier, CA

Average pressure in August - Whittier, CA
  • Average pressure in August: 29.89"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in August
Whittier, CA

Average wind speed in August - Whittier, CA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

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Average humidity in August
Whittier, CA

Average humidity in August - Whittier, CA
  • Average humidity in August: 54%

The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in August
Whittier, CA

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

The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in August
Whittier, CA

Average rainfall days in August - Whittier, CA
  • Average rainfall days in August: 1.3 days

The month with the highest number of rainy days is March (5.1 days).
The month with the least rainy days is June (1 days).

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

Average daylight in August / Average sunshine in August - Whittier, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in August
Whittier, CA

Average sunshine days in August - Whittier, CA
  • Average sunshine days in August: 27.8 days

The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (22.6 days).

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Average UV index in August
Whittier, CA

Average UV index in August - Whittier, CA
  • Average UV index in August: 7

The month with the highest UV index is August (UV index 7).
Months with the lowest UV index are February, November and December (UV index 4).

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Average cloud cover in August
Whittier, CA

Average cloud cover in August - Whittier, CA
  • Average cloud cover in August: 6

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in August
Whittier, CA

Average visibility in August - Whittier, 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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