Temperatures in August
It's hot in August in Galveston with an average temperature of 33°C. Temperatures this month range from a low of 31°C to a high of 34°C. At night, you can expect temperatures between 26°C and 29°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Galveston in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Galveston with hot temperatures, averaging around 33°C during the day and nights close to 29°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-August
By mid-August, the average daytime temperature rises to around 34°C, with nights close to 29°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of August
By the end of August, the average daytime temperature in Galveston will be around 33°C, with nights close to 28°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Discover cheap trips to Galveston 
Water temperature
The water temperature at Galveston is 31°C this month. It’s really warm, perfect for a swim.
Precipitation in August
In August, there is an average of 383 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 30% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Galveston. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Galveston in August |
London | ||
|---|---|---|---|
 Average Temperature |
33°C | 22°C | |
 High Temp |
34°C | 24°C | |
| Low Temp |
31°C | 19°C | |
 Total Precipitation |
383 mm | 60 mm | |
| Rainy Days |
9 days | 10 days | |
July
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is August a good time to visit Galveston?
After some sun? Then August isn’t the best time to be in Galveston. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Galveston runs from June to November.
Temperature records for Galveston in August
With 39°C, Galveston hit the highest temperature in the last 10 years in August 2023. The lowest daytime temperature in this month was 23°C in 2017. The extreme night temperatures ranged from a low of 21°C to a high of 31°C.
Check out the climate of Galveston for all months and discover the best travel time
Plan your next holiday
Don’t miss the best holiday deals for Galveston and see what our partners have for you.
Daily Temperature in August in Galveston
This chart shows the average daily temperatures, both day and night, for each day in August in Galveston, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Galveston
The chart below shows the average daily precipitation in August for Galveston, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 9 days of rain in Galveston.
Daily UV Index in August in Galveston
This chart shows the average daily UV index in August in Galveston, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Galveston Over the Years
This chart shows the average temperature in August in Galveston, measured in degrees Celsius, over the past years.
Total Precipitation in August in Galveston Over the Years
This chart shows the average precipitation in August in Galveston, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Galveston
Click on a specific day in August for detailed info on the typical weather on that day in Galveston. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Galveston
Have you been to Galveston in August?
Share your weather experience in August in Galveston.
Average Weather in Galveston by Month
Click on a month below to see detailed weather info for Galveston. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Galveston for all months at once
