July weather forecast and climate
La Mesa, CA

Weather in July

July, like June, in La Mesa, California, is a moderately hot summer month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 64°F (17.8°C).

Temperature

In La Mesa, California, the average high-temperature is practically the same as in June - a still moderately hot 80.2°F (26.8°C). The average low-temperature, in La Mesa, is 64°F (17.8°C).

Humidity

The average relative humidity in La Mesa is 65%.

Rainfall

In La Mesa, during July, the rain falls for 4.4 days and regularly aggregates up to 0.31" (8mm) of precipitation. In La Mesa, during the entire year, the rain falls for 54.5 days and collects up to 6.57" (167mm) of precipitation.

Daylight

In July, the average length of the day is 14.1h.

Sunshine

With an average of 12h of sunshine, July has the most sunshine of the year.

UV index

Months with the highest UV index in La Mesa are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
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. 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 temperature in July in La Mesa?

The average high-temperature, in July, is 80.2°F (26.8°C), while the average low-temperature is 64°F (17.8°C).

What is the average humidity in July in La Mesa?

In July, the average relative humidity in La Mesa is 65%.

How many days does it rain in July in La Mesa?

In La Mesa, California, in July, it is raining for 4.4 days, with typically 0.31" (8mm) of accumulated precipitation.

What is the average length of the day in July in La Mesa?

The average length of the day in July in La Mesa is 14.1h.

What month has the most sunshine in La Mesa?

The month with the most sunshine is July, with an average of 12h of sunshine.

How long on average sun shines in July in La Mesa?

In La Mesa, the average sunshine in July is 12h.

What are the months with the highest UV index in La Mesa?

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

How high is the UV index in July in La Mesa?

In July, the average daily maximum UV index in La Mesa, California, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in July
La Mesa, CA

Average temperature in July - La Mesa, CA
  • Average high temperature in July: 80.2°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (64.2°F).

  • Average low temperature in July: 64°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 (48.7°F).

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Average pressure in July
La Mesa, CA

Average pressure in July - La Mesa, CA
  • Average pressure in July: 29.9"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in July
La Mesa, CA

Average wind speed in July - La Mesa, CA
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.5mph).

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Average humidity in July
La Mesa, CA

Average humidity in July - La Mesa, CA
  • Average humidity in July: 65%

The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is November (55%).

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Average rainfall in July
La Mesa, CA

Average rainfall in July - La Mesa, CA
  • Average rainfall in July: 0.31"

The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in July
La Mesa, CA

Average rainfall days in July - La Mesa, CA
  • Average rainfall days in July: 4.4 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.4 days).

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Average daylight in July /
Average sunshine in July
La Mesa, CA

Average daylight in July / Average sunshine in July - La Mesa, CA
  • Average daylight in July: 14.1h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in July: 12h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in July
La Mesa, CA

Average sunshine days in July - La Mesa, CA
  • Average sunshine days in July: 24.7 days

The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (21 days).

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Average UV index in July
La Mesa, CA

Average UV index in July - La Mesa, CA
  • Average UV index in July: 6

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in July
La Mesa, CA

Average cloud cover in July - La Mesa, CA
  • Average cloud cover in July: 10

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in July
La Mesa, CA

Average visibility in July - La Mesa, 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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