Galveston Climate by Month
Galveston, Texas, United States
Hot summers and mild winters, with rain spread through the year.
Galveston has hot summers and mild winters, with rain spread through the year. August is the warmest month, with highs around 90°F (32°C); January is the coolest at 61°F (16°C), and nights dip to 47°F (9°C). It gets 48 in (1223 mm) of rain a year, spread across the months.
- Warmest month
- 90°F(32°C)
- Average high, August
- Coldest nights
- 47°F(9°C)
- Average low, January
- Rain per year
- 48 in(1223 mm)
- No clear rainy season
- Humidity
- 74%
- Sunniest: July
Best and worst months in Galveston
Best for weatherApril is the best time for weather in Galveston: highs near 76°F (24°C) and about 2.8 in (71 mm) of rain a month.
Least pleasantAugust and September are the least pleasant; September is the wettest, with 6.5 in (165 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Galveston weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 61°F(16°C) | 47°F(9°C) | 3.9 in(99 mm) | 77% | 2.8 |
| FebFebruary | 64°F(18°C) | 51°F(11°C) | 2.5 in(64 mm) | 74% | 3.1 |
| MarMarch | 70°F(21°C) | 57°F(14°C) | 2.8 in(72 mm) | 75% | 4.2 |
| AprAprilBest | 76°F(24°C) | 64°F(18°C) | 2.8 in(71 mm) | 73% | 5.2 |
| MayMay | 82°F(28°C) | 71°F(22°C) | 3.4 in(87 mm) | 74% | 5.9 |
| JunJune | 87°F(31°C) | 77°F(25°C) | 4.7 in(119 mm) | 75% | 6.1 |
| JulJuly | 89°F(32°C) | 79°F(26°C) | 4.3 in(109 mm) | 73% | 6.2 |
| AugAugust | 90°F(32°C) | 79°F(26°C) | 4.5 in(114 mm) | 72% | 5.8 |
| SepSeptember | 87°F(30°C) | 74°F(24°C) | 6.5 in(165 mm) | 70% | 5.0 |
| OctOctober | 80°F(27°C) | 67°F(19°C) | 4.5 in(114 mm) | 72% | 4.1 |
| NovNovember | 71°F(21°C) | 57°F(14°C) | 4.1 in(103 mm) | 75% | 3.0 |
| DecDecember | 63°F(17°C) | 50°F(10°C) | 4.2 in(106 mm) | 78% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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