Galveston weather in January
In January, Galveston sees average daytime highs of 60°F and overnight lows near 53°F, with 4.8 in of rain across 10.4 wet days and about 10.3 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 60°F through the month. The sky is clear or mostly clear about 34% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 12 min at the start of January to 10 h 36 min by month's end. Set against the rest of the year, January is Galveston's 10th-clearest and 2nd-windiest month. For the whole year in context, see Galveston's year-round climate.
- Daytime high
- 60°
- 12th warmest
- Overnight low
- 53°
- 1st coldest
- Rainfall
- 4.8 in
- 10.4 wet days
- Daylight
- 10 h 18 min
- 7:19 AM – 5:38 PM
- Cloud cover
- 58%
- 10th clearest
- Wind
- 13 mph
- 2nd windiest
- Solar energy
- 3.03 kWh/m²
- Travel score
- 4.7
- out of 10
Galveston is city in and county seat of Galveston County, Texas, United States; port and coastal city.
- Density
- 93/km²
- people per km²
- Founded
- 1785
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 60°F through the month.
A typical January day in Galveston reaches about 60°F in the afternoon and slips back to 53°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 66°F. Set against its neighbours, January runs about 3°F cooler than December and about 2°F cooler than February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Avg low (°F) | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 60 | 53 |
| 2 | 60 | 53 |
| 3 | 60 | 53 |
| 4 | 60 | 53 |
| 5 | 60 | 53 |
| 6 | 60 | 53 |
| 7 | 60 | 53 |
| 8 | 60 | 53 |
| 9 | 60 | 53 |
| 10 | 60 | 53 |
| 11 | 60 | 53 |
| 12 | 60 | 53 |
| 13 | 59 | 53 |
| 14 | 59 | 53 |
| 15 | 59 | 53 |
| 16 | 60 | 53 |
| 17 | 60 | 53 |
| 18 | 60 | 53 |
| 19 | 60 | 53 |
| 20 | 60 | 53 |
| 21 | 60 | 53 |
| 22 | 60 | 53 |
| 23 | 60 | 53 |
| 24 | 60 | 53 |
| 25 | 60 | 53 |
| 26 | 60 | 53 |
| 27 | 60 | 53 |
| 28 | 60 | 53 |
| 29 | 60 | 53 |
| 30 | 60 | 53 |
| 31 | 60 | 53 |
How January really feels in Galveston
Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Galveston weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 60° / 53° | 4.8 | 10.4 | 10.3 | 4.7 |
| Feb | 61° / 55° | 3.5 | 8.7 | 10.9 | 5.2 |
| Mar | 66° / 61° | 3.4 | 7.9 | 11.8 | 6.4 |
| Apr | 72° / 67° | 3.5 | 7.2 | 12.7 | 7.3 |
| May | 78° / 74° | 3.0 | 7.6 | 13.4 | 7.4 |
| Jun | 83° / 79° | 4.3 | 10.7 | 13.8 | 6.1 |
| Jul | 84° / 81° | 3.7 | 11.6 | 13.7 | 5.4 |
| Aug | 85° / 81° | 4.5 | 13.1 | 13.1 | 5.0 |
| Sep | 83° / 78° | 6.3 | 12.5 | 12.2 | 5.8 |
| Oct | 77° / 71° | 4.7 | 8.6 | 11.3 | 7.4 |
| Nov | 69° / 62° | 4.4 | 8.2 | 10.5 | 6.8 |
| Dec | 62° / 55° | 4.5 | 10.1 | 10.2 | 5.5 |
Cloud cover in January
The sky is clear or mostly clear about 34% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 54%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 43 | 44 | 44 | 44 | 45 | 45 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 47 | 47 | 47 | 46 | 47 | 47 | 45 | 45 | 45 | 45 | 45 | 45 |
| Cloudier (%) | 57 | 56 | 56 | 56 | 55 | 55 | 54 | 54 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 53 | 53 | 53 | 54 | 53 | 53 | 55 | 55 | 55 | 55 | 55 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 43 | 57 |
| 2 | 44 | 56 |
| 3 | 44 | 56 |
| 4 | 44 | 56 |
| 5 | 45 | 55 |
| 6 | 45 | 55 |
| 7 | 46 | 54 |
| 8 | 46 | 54 |
| 9 | 46 | 54 |
| 10 | 47 | 53 |
| 11 | 47 | 53 |
| 12 | 47 | 53 |
| 13 | 47 | 53 |
| 14 | 47 | 53 |
| 15 | 47 | 53 |
| 16 | 48 | 52 |
| 17 | 48 | 52 |
| 18 | 48 | 52 |
| 19 | 48 | 52 |
| 20 | 47 | 53 |
| 21 | 47 | 53 |
| 22 | 47 | 53 |
| 23 | 46 | 54 |
| 24 | 47 | 53 |
| 25 | 47 | 53 |
| 26 | 45 | 55 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 45 | 55 |
| 31 | 45 | 55 |
Chance of precipitation in January
Galveston gets around 4.8 in of rain over 10.4 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 34% and peaks near 35% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 33 |
| Rain chance (%) | |
|---|---|
| 1 | 33 |
| 2 | 33 |
| 3 | 33 |
| 4 | 34 |
| 5 | 34 |
| 6 | 34 |
| 7 | 34 |
| 8 | 34 |
| 9 | 34 |
| 10 | 35 |
| 11 | 35 |
| 12 | 35 |
| 13 | 35 |
| 14 | 35 |
| 15 | 35 |
| 16 | 34 |
| 17 | 34 |
| 18 | 34 |
| 19 | 34 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 34 |
| 24 | 34 |
| 25 | 34 |
| 26 | 34 |
| 27 | 34 |
| 28 | 34 |
| 29 | 33 |
| 30 | 33 |
| 31 | 33 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 66 | 65 | 65 | 65 | 66 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 68 | 67 | 67 | 67 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 |
| Comfortable (%) | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Humid (%) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Muggy (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 66 | 17 | 15 | 2 |
| 2 | 65 | 18 | 15 | 2 |
| 3 | 65 | 18 | 15 | 2 |
| 4 | 65 | 18 | 15 | 2 |
| 5 | 66 | 18 | 15 | 1 |
| 6 | 66 | 18 | 15 | 1 |
| 7 | 66 | 18 | 15 | 1 |
| 8 | 66 | 18 | 15 | 1 |
| 9 | 67 | 17 | 15 | 1 |
| 10 | 67 | 17 | 15 | 1 |
| 11 | 67 | 17 | 14 | 2 |
| 12 | 67 | 17 | 14 | 2 |
| 13 | 67 | 17 | 14 | 2 |
| 14 | 67 | 17 | 14 | 2 |
| 15 | 67 | 17 | 14 | 2 |
| 16 | 67 | 18 | 14 | 1 |
| 17 | 67 | 18 | 14 | 1 |
| 18 | 67 | 18 | 14 | 1 |
| 19 | 67 | 18 | 14 | 1 |
| 20 | 68 | 18 | 13 | 1 |
| 21 | 67 | 19 | 13 | 1 |
| 22 | 67 | 19 | 13 | 1 |
| 23 | 67 | 19 | 13 | 1 |
| 24 | 66 | 20 | 13 | 1 |
| 25 | 67 | 20 | 12 | 1 |
| 26 | 67 | 20 | 12 | 1 |
| 27 | 67 | 20 | 12 | 1 |
| 28 | 67 | 20 | 12 | 1 |
| 29 | 67 | 20 | 12 | 1 |
| 30 | 67 | 20 | 12 | 1 |
| 31 | 67 | 20 | 12 | 1 |
Wind in January
Winds average 13 mph in January.
Across January, daily wind ranges from about 13 mph on the calmest days to 13 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 13 | breezy |
| 2 | 13 | breezy |
| 3 | 13 | breezy |
| 4 | 13 | breezy |
| 5 | 13 | breezy |
| 6 | 13 | breezy |
| 7 | 13 | breezy |
| 8 | 13 | breezy |
| 9 | 13 | breezy |
| 10 | 13 | breezy |
| 11 | 13 | breezy |
| 12 | 13 | breezy |
| 13 | 13 | breezy |
| 14 | 13 | breezy |
| 15 | 13 | breezy |
| 16 | 13 | breezy |
| 17 | 13 | breezy |
| 18 | 13 | breezy |
| 19 | 13 | breezy |
| 20 | 13 | breezy |
| 21 | 13 | breezy |
| 22 | 13 | breezy |
| 23 | 13 | breezy |
| 24 | 13 | breezy |
| 25 | 13 | breezy |
| 26 | 13 | breezy |
| 27 | 13 | breezy |
| 28 | 13 | breezy |
| 29 | 13 | breezy |
| 30 | 13 | breezy |
| 31 | 13 | breezy |
Sunrise & sunset in January
Daylight runs from about 10 h 12 min at the start of January to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over January. Sunrise moves from 7:18 AM to 7:15 AM, and sunset from 5:27 PM to 5:50 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 |
| Sunrise (AM) | 7:18 | 7:18 | 7:18 | 7:18 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:18 | 7:18 | 7:18 | 7:18 | 7:17 | 7:17 | 7:17 | 7:16 | 7:16 | 7:16 | 7:15 | 7:15 |
| Sunset (PM) | 5:27 | 5:28 | 5:28 | 5:29 | 5:30 | 5:30 | 5:31 | 5:32 | 5:33 | 5:33 | 5:34 | 5:35 | 5:36 | 5:36 | 5:37 | 5:38 | 5:39 | 5:40 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:44 | 5:45 | 5:46 | 5:47 | 5:48 | 5:49 | 5:49 | 5:50 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.2 | 7:18 | 5:27 |
| 2 | 10.2 | 7:18 | 5:28 |
| 3 | 10.2 | 7:18 | 5:28 |
| 4 | 10.2 | 7:18 | 5:29 |
| 5 | 10.2 | 7:19 | 5:30 |
| 6 | 10.2 | 7:19 | 5:30 |
| 7 | 10.2 | 7:19 | 5:31 |
| 8 | 10.2 | 7:19 | 5:32 |
| 9 | 10.2 | 7:19 | 5:33 |
| 10 | 10.2 | 7:19 | 5:33 |
| 11 | 10.2 | 7:19 | 5:34 |
| 12 | 10.3 | 7:19 | 5:35 |
| 13 | 10.3 | 7:19 | 5:36 |
| 14 | 10.3 | 7:19 | 5:36 |
| 15 | 10.3 | 7:19 | 5:37 |
| 16 | 10.3 | 7:19 | 5:38 |
| 17 | 10.3 | 7:19 | 5:39 |
| 18 | 10.3 | 7:19 | 5:40 |
| 19 | 10.4 | 7:19 | 5:40 |
| 20 | 10.4 | 7:18 | 5:41 |
| 21 | 10.4 | 7:18 | 5:42 |
| 22 | 10.4 | 7:18 | 5:43 |
| 23 | 10.4 | 7:18 | 5:44 |
| 24 | 10.4 | 7:17 | 5:44 |
| 25 | 10.5 | 7:17 | 5:45 |
| 26 | 10.5 | 7:17 | 5:46 |
| 27 | 10.5 | 7:16 | 5:47 |
| 28 | 10.5 | 7:16 | 5:48 |
| 29 | 10.5 | 7:16 | 5:49 |
| 30 | 10.6 | 7:15 | 5:49 |
| 31 | 10.6 | 7:15 | 5:50 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 3.03 kWh/m².
For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 6.42 kWh/m² in July across the year — January's 3.03 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.3 | 3.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.8 | Moderate |
| 2 | 2.8 | Moderate |
| 3 | 2.8 | Moderate |
| 4 | 2.8 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.8 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 3.0 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.0 | Moderate |
| 17 | 3.1 | Moderate |
| 18 | 3.1 | Moderate |
| 19 | 3.1 | Moderate |
| 20 | 3.1 | Moderate |
| 21 | 3.1 | Moderate |
| 22 | 3.1 | Moderate |
| 23 | 3.2 | Moderate |
| 24 | 3.2 | Moderate |
| 25 | 3.2 | Moderate |
| 26 | 3.2 | Moderate |
| 27 | 3.2 | Moderate |
| 28 | 3.2 | Moderate |
| 29 | 3.2 | Moderate |
| 30 | 3.3 | Moderate |
| 31 | 3.3 | Moderate |
Hazard calendar for Galveston
None of Galveston's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Galveston sits in the Atlantic hurricane belt; the season peaks August–October.
Is January a good time to visit Galveston?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Galveston for sightseeing.
What to pack for Galveston in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Galveston sees daytime highs around 60°F and nights near 53°F. Worth packing: a warm layer, rain gear and a windbreaker. About 10 days see rain.
Sea temperature near Galveston in January
The nearest coast averages about 58°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 12 mi away) is warmest in August at about 86°F and coldest in January near 58°F.
It's comfortable for a long swim from Apr 4 to Nov 21 — about 7.6 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 58 | 59 | 64 | 71 | 78 | 83 | 85 | 86 | 84 | 78 | 69 | 62 |
| Comfort | Bracing | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 58 | Bracing |
| Feb | 59 | Cool |
| Mar | 64 | Cool |
| Apr | 71 | Refreshing |
| May | 78 | Warm |
| Jun | 83 | Tropical |
| Jul | 85 | Tropical |
| Aug | 86 | Tropical |
| Sep | 84 | Tropical |
| Oct | 78 | Warm |
| Nov | 69 | Refreshing |
| Dec | 62 | Cool |
UV index in Galveston in January
Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Galveston peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 10 | 10 | 11 | 11 | 11 | 9 | 6 | 5 | 4 |
| Level | Moderate | High | High | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Extreme |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in Galveston in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Galveston is worst in July — around 19 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 7 | 8 | 9 | 12 | 16 | 19 | 13 | 10 | 6 | 6 | 6 |
| Level | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 7 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 12 | Good |
| Jun | 16 | Moderate |
| Jul | 19 | Moderate |
| Aug | 13 | Moderate |
| Sep | 10 | Good |
| Oct | 6 | Good |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Galveston?
Galveston sits at 29.3°N, 94.8°W, 7 ft above sea level, in United States. The nearest listed city is Texas City, 8.7 mi away.
Topography around Galveston
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Galveston.
Within 2 miles, the terrain around Galveston has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 62 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 236 ft.
The land around Galveston is covered by artificial surfaces (41%) and water (32%) within 2 miles, water (80%) within 10 miles, and water (45%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Galveston (29.3013°, -94.7977°, elevation 7 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).