July weather forecast and climate
San Antonio Heights, CA

Weather in July

July is a hot summer month in San Antonio Heights, California, with average temperature varying between 90°F (32.2°C) and 64.8°F (18.2°C).

Temperature

In San Antonio Heights, the average high-temperature in July slightly increases, from a moderately hot 84°F (28.9°C) in June, to a hot 90°F (32.2°C). In July, in San Antonio Heights, the average low-temperature is 64.8°F (18.2°C).

Heat index

In July, the average heat index is calculated to a hot 92.5°F (33.6°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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', 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 differences in body mass, height, and shape, metabolic differences, 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 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 is 45%.

Rainfall

In San Antonio Heights, in July, during 2.8 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In San Antonio Heights, California, during the entire year, the rain falls for 49.6 days and collects up to 7.8" (198mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

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

Sunshine

July has the most sunshine of the year, with an average of 12.1h of sunshine.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 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. 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 July in San Antonio Heights?

In July, the average high-temperature is 90°F (32.2°C), and the average low-temperature is 64.8°F (18.2°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that calculates temperature value influenced by the moisture in the air, is estimated at 92.5°F (33.6°C).

What is the average humidity in July in San Antonio Heights?

In San Antonio Heights, the average relative humidity in July is 45%.

How many days does it rain in July in San Antonio Heights?

In July, in San Antonio Heights, California, the rain falls for 2.8 days. Throughout July, 0.16" (4mm) of precipitation is accumulated.

When it does not snow in San Antonio Heights?

January, March through December are months without snowfall.

What is the average length of the day in July in San Antonio Heights?

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

What month has the most sunshine in San Antonio Heights?

July has the most sunshine of the year in San Antonio Heights, with an average of 12.1h of sunshine.

How long on average sun shines in July in San Antonio Heights?

In San Antonio Heights, California, the average sunshine in July is 12.1h.

When is the highest UV index in San Antonio Heights?

Months with the highest UV index are July and August, with an average maximum UV index of 7.

How high is the UV index in July in San Antonio Heights?

In July, the average daily maximum UV index in San Antonio Heights is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in July
San Antonio Heights, CA

Average temperature in July - San Antonio Heights, CA
  • Average high temperature in July: 90°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).

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Average pressure in July
San Antonio Heights, CA

Average pressure in July - San Antonio Heights, CA
  • Average pressure in July: 29.89"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in July
San Antonio Heights, CA

Average wind speed in July - San Antonio Heights, CA
  • Average wind speed in July: 5.1mph

The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in July
San Antonio Heights, CA

Average humidity in July - San Antonio Heights, CA
  • Average humidity in July: 45%

Months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in July
San Antonio Heights, CA

Average rainfall in July - San Antonio Heights, CA
  • Average rainfall in July: 0.16"

The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in July
San Antonio Heights, CA

Average rainfall days in July - San Antonio Heights, CA
  • Average rainfall days in July: 2.8 days

The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall days in July
San Antonio Heights, CA

Average snowfall days in July - San Antonio Heights, CA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (0.1 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in July /
Average sunshine in July
San Antonio Heights, CA

Average daylight in July / Average sunshine in July - San Antonio Heights, 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

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are February and December (Average sunshine: 6.9).

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Average sunshine days in July
San Antonio Heights, CA

Average sunshine days in July - San Antonio Heights, CA
  • Average sunshine days in July: 25.4 days

The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in July
San Antonio Heights, CA

Average UV index in July - San Antonio Heights, CA
  • Average UV index in July: 7

Months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in July
San Antonio Heights, CA

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

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in July
San Antonio Heights, CA

Average visibility in July - San Antonio Heights, 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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