Galveston in Fall
In fall (September, October and November), Galveston sees average daytime highs around 76°F and overnight lows near 71°F, with 15.5 in of rain over about 29 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 84°F in early September to 66°F by late November. The sky is clear or mostly clear about 52% of the time across fall, and the air most often feels oppressive.
Fall is Galveston's 2nd-best season to visit on our travel score. For the whole year in context, see Galveston's year-round climate.
- Avg daytime high
- 76°F
- 2nd-warmest season
- Avg overnight low
- 71°F
- Rainfall
- 15.5 in
- 29 wet days
- Avg wind
- 12 mph
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Galveston in Fall
Over the season highs ease from about 84°F in early September to 66°F by late November.
A typical fall day in Galveston reaches about 76°F and drops to 71°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Galveston
Once humidity and wind are folded in, fall brings about 13 days that feel above 90°F and 0 that feel at or below 32°F.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Galveston weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| 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 Fall
The sky is clear or mostly clear about 52% of the time across fall.
Chance of precipitation in Fall
Galveston gets around 15.5 in of rain over 29 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².
Hazard calendar for Galveston
In fall, Galveston overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Galveston sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Galveston?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Galveston for sightseeing.
What to pack for Galveston in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Galveston sees daytime highs around 76°F and nights near 71°F. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 29 days see rain.
Sea temperature near Galveston in Fall
The nearest coast averages about 77°F across fall — 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 Fall
Clear-sky midday UV across fall averages around 7 — 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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.