San Antonio
Texas, USA
Long-term weather forecast
Long-term weather forecast
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July weather forecast and Climate
San Antonio, TX

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Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront
Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront
July has one of the hottest average temperature ranges of the year between 75°F (23.9°C) to 95°F (35°C). The daily highs rarely drop below 90°F (32.2°C) while a few days cross 100°F (37.8°C). Nights seldom drop below 60°F (15.6°C).
July is also one of the sunniest months in San Antonio with around 317 hours of sunlight in the month. Long days up to 14 hours are the hallmark of July. Rain registers to the tune of 2.7" (68.6mm) with a chance of thunderstorms in the afternoon.
Many days exhibit clear skies, which are the perfect times to enjoy the San Antonio River Walk!
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  • The average high temperature in July: 35°C

Warmest months (with the highest average high temperature) are July and August (35°C).
The month with the lowest average high temperature is January (16°C).

  • The average low temperature in July: 23°C

Months with the highest average low temperature are July and August (23°C).
The coldest month (with the lowest average low temperature) is January (3°C).

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  • The average rainfall in July: 39mm

The wettest month (with the highest rainfall) is May (94mm).
The driest month (with the lowest rainfall) is March (37mm).

  • The average rainfall days in July: 5 days

The month with the highest number of rainy days is May (8 days).
Months with the lowest number of rainy days are July and August (5 days).

  • The average daylight in July: 14h

Months with the longest days are May, June and July (Average daylight: 14h).
The month with shortest days is December (Average daylight: 10h).

  • The average sunshine in July: 10h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are January and December (Average sunshine: 5).

  • The average UV index in July: 11

Months with the highest UV index are May, June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 4).

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