July weather forecast and climate
San Fernando, CA

Weather in July

July, the same as June, is another warm summer month in San Fernando, California, with average temperature fluctuating between 64°F (17.8°C) and 84.2°F (29°C).

Temperature

In San Fernando, the average high-temperature is practically the same as in June - a still warm 84.2°F (29°C). In San Fernando, in July, the average low-temperature is 64°F (17.8°C).

Heat index

The average heat index in July is estimated at a hot 86.4°F (30.2°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise 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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, metabolic differences, clothing). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In July, the average relative humidity in San Fernando is 54%.

Rainfall

Months with rainfall are January through May, July through December. July is the first month it rains. Throughout July, in the average 1.9 rainfall days, it receives 0.08" (2mm) of precipitation. In San Fernando, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.

Daylight

In San Fernando, the average length of the day is 14.2h.

Sunshine

June and July, with an average of 12.1h of sunshine, are months with the most sunshine in San Fernando.

UV index

Months with the highest UV index in San Fernando are June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. 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 temperature in July in San Fernando?

The average high-temperature, in July, is 84.2°F (29°C), while the average low-temperature is 64°F (17.8°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 86.4°F (30.2°C).

What is the average humidity in July in San Fernando?

In July, the average relative humidity is 54%.

When does it start raining in San Fernando?

July is the first month it rains in San Fernando. Throughout July, in the average 1.9 rainfall days, it receives 0.08" (2mm) of precipitation.

What is the average length of the day in July in San Fernando?

In San Fernando, the average length of the day in July is 14.2h.

What are the months with the most sunshine in San Fernando?

June and July, with an average of 12.1h of sunshine, are months with the most sunshine.

How long on average sun shines in July in San Fernando?

In July, the average sunshine is 12.1h.

When is the highest UV index in San Fernando?

Months with the highest UV index are June through September, with an average maximum UV index of 6.

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

The average daily maximum UV index in July in San Fernando is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in July
San Fernando, CA

Average temperature in July - San Fernando, CA
  • Average high temperature in July: 84.2°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 July: 64°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 July
San Fernando, CA

Average pressure in July - San Fernando, CA
  • Average pressure in July: 29.92"

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 July
San Fernando, CA

Average wind speed in July - San Fernando, CA
  • Average wind speed in July: 4.9mph

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 July
San Fernando, CA

Average humidity in July - San Fernando, CA
  • Average humidity in July: 54%

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 July
San Fernando, CA

Average rainfall in July - San Fernando, CA
  • Average rainfall in July: 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 July
San Fernando, CA

Average rainfall days in July - San Fernando, CA
  • Average rainfall days in July: 1.9 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 July /
Average sunshine in July
San Fernando, CA

Average daylight in July / Average sunshine in July - San Fernando, CA
  • Average daylight in July: 14.2h

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 July: 12.1h

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 July
San Fernando, CA

Average sunshine days in July - San Fernando, CA
  • Average sunshine days in July: 28 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 July
San Fernando, CA

Average UV index in July - San Fernando, CA
  • Average UV index in July: 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 July
San Fernando, CA

Average cloud cover in July - San Fernando, CA
  • Average cloud cover in July: 6

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 July
San Fernando, CA

Average visibility in July - San Fernando, CA
  • Average visibility in July: 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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