Typical May weather
Galveston
Texas · May
84° days
72° nights
about 3 rainy days · 13½ hours of daylight · gulf 81°
What to pack
- Swimsuit
- Sunscreen
What May feels like
The best swimming-to-crowd ratio of the year: the Gulf is genuinely warm and the weekend traffic down from Houston hasn't peaked yet. Jellyfish and the odd Portuguese man o' war ride in on onshore winds, so look before you wade.
Expect about 3 days with real rain — enough to notice, not enough to plan around.
Can you swim?
The Gulf runs about 81° — bath-warm.
The numbers
| Typical high | 84° |
|---|---|
| Typical low | 72° |
| Days with real rain | 3 |
| Total rain | 3.0 in |
| Water temperature | 81° |
| Sunrise / sunset (mid-month) | 6:26 am / 8:04 pm |