August weather forecast and climate
San Fernando, CA

Weather in August

August, the last month of the summer, in San Fernando, is another warm month, with average temperature varying between 64.9°F (18.3°C) and 85.8°F (29.9°C).

Temperature

August is the warmest month, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 64.9°F (18.3°C).

Heat index

In August, the average heat index is appraised at a hot 88°F (31.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like metabolic differences, differences in body mass, height, and shape, pregnancy, and activity influence one's weather impression. 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 particularly important for children. 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

In August, the average relative humidity in San Fernando, California, is 51%.

Rainfall

In San Fernando, during 1.2 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In San Fernando, California, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.

Daylight

The average length of the day in San Fernando is 13.4h.

Sunshine

The average sunshine in San Fernando is 12h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in San Fernando?

The warmest month is August, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 64.9°F (18.3°C).

What is the temperature in August in San Fernando?

The average high-temperature, in August, in San Fernando, is 85.8°F (29.9°C), while the average low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, is appraised at 88°F (31.1°C).

What is the average humidity in August in San Fernando?

The average relative humidity in August in San Fernando, California, is 51%.

How many days does it rain in August in San Fernando?

In San Fernando, during August, the rain falls for 1.2 days and regularly aggregates up to 0.08" (2mm) of precipitation.

How many hours of daylight does San Fernando have in August?

In San Fernando, California, the average length of the day in August is 13.4h.

How many hours of sunshine does San Fernando have in August?

In August, the average sunshine in San Fernando, California, is 12h.

What are the months with the highest UV index in San Fernando?

June through September, with an average maximum UV index of 6, are months with the highest UV index in San Fernando.

How high is the UV index in August in San Fernando?

In August, the average daily maximum UV index in San Fernando is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in August
San Fernando, CA

Average temperature in August - San Fernando, CA
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

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Average pressure in August
San Fernando, CA

Average pressure in August - San Fernando, CA
  • Average pressure in August: 29.9"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in August
San Fernando, CA

Average wind speed in August - San Fernando, CA
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in August
San Fernando, CA

Average humidity in August - San Fernando, CA
  • Average humidity in August: 51%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in August
San Fernando, CA

Average rainfall in August - San Fernando, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").

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Average rainfall days in August
San Fernando, CA

Average rainfall days in August - San Fernando, CA
  • Average rainfall days in August: 1.2 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

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Average daylight in August /
Average sunshine in August
San Fernando, CA

Average daylight in August / Average sunshine in August - San Fernando, 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 June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in August
San Fernando, CA

Average sunshine days in August - San Fernando, CA
  • Average sunshine days in August: 28.7 days

The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).

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Average UV index in August
San Fernando, CA

Average UV index in August - San Fernando, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in August
San Fernando, CA

Average cloud cover in August - San Fernando, CA
  • Average cloud cover in August: 4

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in August
San Fernando, CA

Average visibility in August - San Fernando, 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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