Galveston, Texas weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Poor
Best time to visit: May – October
What is the weather like in Galveston, Texas in March?
In March, Galveston, Texas is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 18.0 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 86 mm in total. All in all, March is not an ideal month for a holiday in Galveston, Texas.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 20 | 30 | 67 |
| Day | 17° | 20° | 23° |
| Night | 12° | 15° | 19° |
| Sea | 15° | 18° | 22° |
| Sun | 5 h | 5 h | 6 h |
| Rain days | 8 | 9 | 9 |
More details for March
- Daylight
- 11 h 57 min07:30 – 19:27
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 9 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 35 %17 %
- Seaweight 25 %14 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 20 %62 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in March
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Galveston, Texas in March: quick answers
Is Galveston, Texas hot in March?
No. In March, Galveston, Texas is mild: daytime highs average 20 °C and nights drop to about 15 °C.
Can you swim in Galveston, Texas in March?
Only if you don't mind cold water: in March the sea averages just 18.0 °C. Comfortable swimming is possible from April to November.
Does it rain much in Galveston, Texas in March?
Rain is frequent, with about 9 rainy days and 86 mm in total.
Galveston, Texas month by month
The whole year in Galveston, TexasAll destinations: USAWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences