Galveston
Texas, USA
Long-term weather forecast
Long-term weather forecast
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August weather forecast and Climate
Galveston, TX

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  • The average high temperature in August: 90.3°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (61.8°F).

  • The average low temperature in August: 79.7°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

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  • The average rainfall in August: 4.3"

The wettest month (with the highest rainfall) is September (5.4").
The driest month (with the lowest rainfall) is March (2.2").

  • The average rainfall days in August: 6.9 days

The month with the highest number of rainy days is January (9.8 days).
The month with the lowest number of rainy days is April (5 days).

  • The average sea temperature in August: 87.2°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).

  • The average daylight in August: 13h

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 August: 9h

Months with most sunshine are June and July (Average sunshine: 10h).
The month with least sunshine is January (Average sunshine: 4.7h).

  • The average UV index in August: 10

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

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