United StatesAverage weather for Galveston in May
It's warm in May in Galveston with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 30°C. At night, you can expect temperatures between 22°C and 26°C.
Start of May
The month of May starts in Galveston with hot temps, averaging around 28°C during the day and nights around 23°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid May
By mid-May, daytime temps rise to around 29°C, with nights around 24°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Galveston is around 30°C, while nighttime temps are about 25°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Water temperature
The water temperature at Galveston is 27°C this month. Nice and warm for a swim.
In May, there is an average of 107 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Galveston in May |
New York | ||
|---|---|---|---|
 Average temperature |
29°C | 22°C | |
 Max. temperature |
30°C | 28°C | |
| Min. temperature |
27°C | -5°C | |
 Total precipitation |
107 mm | 105 mm | |
| Rainy days |
8 days | 14 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Galveston?
Looking for sun? May isn’t a good month to be in Galveston. The temperature is nice, but there’s too much chance of rain.
The hurricane season in Galveston runs from June to November.
Temperature records
With 34°C in 2022, Galveston reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 22°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 29°C.
Check out the climate of Galveston for all months and discover the best travel time
Daily Temperature in May in Galveston
This chart shows the average daily high and low temperatures in May for Galveston, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Galveston
The chart below shows the average daily precipitation in May for Galveston, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 8 days of precipitation in Galveston.
Daily UV index in May in Galveston
This chart shows the average daily UV index in May 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 May in Galveston over the years
This chart shows the average temperature in May in Galveston, measured in degrees Celsius, over the past few years.
Total precipitation in May in Galveston over the years
This chart shows the average precipitation in May in Galveston, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Galveston
Click on any day in May to get detailed info about the usual weather on that day in Galveston. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Galveston
Have you been to Galveston in May?
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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
