Galveston weather by month

Check out Galveston weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Galveston (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
15°C maximum daytime temperature in January in Galveston15
16°C maximum daytime temperature in February in Galveston16
20°C maximum daytime temperature in March in Galveston20
24°C maximum daytime temperature in April in Galveston24
27°C maximum daytime temperature in May in Galveston27
30°C maximum daytime temperature in June in Galveston30
31°C maximum daytime temperature in July in Galveston31
31°C maximum daytime temperature in August in Galveston31
30°C maximum daytime temperature in September in Galveston30
26°C maximum daytime temperature in October in Galveston26
21°C maximum daytime temperature in November in Galveston21
17°C maximum daytime temperature in December in Galveston17
Min temperature (night-time)
8°C minimum night-time temperature in January in Galveston8
10°C minimum night-time temperature in February in Galveston10
13°C minimum night-time temperature in March in Galveston13
18°C minimum night-time temperature in April in Galveston18
22°C minimum night-time temperature in May in Galveston22
25°C minimum night-time temperature in June in Galveston25
26°C minimum night-time temperature in July in Galveston26
26°C minimum night-time temperature in August in Galveston26
24°C minimum night-time temperature in September in Galveston24
19°C minimum night-time temperature in October in Galveston19
14°C minimum night-time temperature in November in Galveston14
10°C minimum night-time temperature in December in Galveston10
Heat & Humidity
No heat & humidity in January in Galveston0
No heat & humidity in February in Galveston0
No heat & humidity in March in Galveston0
No heat & humidity in April in Galveston0
Moderate heat & humidity in May in GalvestonM
High heat & humidity in June in GalvestonH
Very high heat & humidity in July in GalvestonVH
Very high heat & humidity in August in GalvestonVH
High heat & humidity in September in GalvestonH
Low heat & humidity in October in GalvestonL
No heat & humidity in November in Galveston0
No heat & humidity in December in Galveston0
Sea temperature
15°C sea temperature in January in Galveston15
15°C sea temperature in February in Galveston15
17°C sea temperature in March in Galveston17
21°C sea temperature in April in Galveston21
25°C sea temperature in May in Galveston25
28°C sea temperature in June in Galveston28
29°C sea temperature in July in Galveston29
30°C sea temperature in August in Galveston30
29°C sea temperature in September in Galveston29
25°C sea temperature in October in Galveston25
21°C sea temperature in November in Galveston21
17°C sea temperature in December in Galveston17

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Galveston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Galveston11
11 hours of daylight per day in February in Galveston11
12 hours of daylight per day in March in Galveston12
13 hours of daylight per day in April in Galveston13
14 hours of daylight per day in May in Galveston14
14 hours of daylight per day in June in Galveston14
14 hours of daylight per day in July in Galveston14
13 hours of daylight per day in August in Galveston13
12 hours of daylight per day in September in Galveston12
11 hours of daylight per day in October in Galveston11
11 hours of daylight per day in November in Galveston11
10 hours of daylight per day in December in Galveston10
UV Index (Maximum)
UV (maximum) index 4 (Moderate) in January in Galveston4
UV (maximum) index 6 (High) in February in Galveston6
UV (maximum) index 8 (Very High) in March in Galveston8
UV (maximum) index 10 (Very High) in April in Galveston10
UV (maximum) index 10 (Very High) in May in Galveston10
UV (maximum) index 11 (Extreme) in June in Galveston11
UV (maximum) index 11 (Extreme) in July in Galveston11
UV (maximum) index 10 (Very High) in August in Galveston10
UV (maximum) index 9 (Very High) in September in Galveston9
UV (maximum) index 7 (High) in October in Galveston7
UV (maximum) index 5 (Moderate) in November in Galveston5
UV (maximum) index 4 (Moderate) in December in Galveston4

Rainfall in Galveston

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Galveston10
7 days with some rainfall in February in Galveston7
7 days with some rainfall in March in Galveston7
5 days with some rainfall in April in Galveston5
7 days with some rainfall in May in Galveston7
7 days with some rainfall in June in Galveston7
8 days with some rainfall in July in Galveston8
9 days with some rainfall in August in Galveston9
10 days with some rainfall in September in Galveston10
6 days with some rainfall in October in Galveston6
7 days with some rainfall in November in Galveston7
8 days with some rainfall in December in Galveston8
Average monthly rainfall (mm)
86 mm monthly rainfall in January in Galveston86
77 mm monthly rainfall in February in Galveston77
57 mm monthly rainfall in March in Galveston57
71 mm monthly rainfall in April in Galveston71
99 mm monthly rainfall in May in Galveston99
111 mm monthly rainfall in June in Galveston111
98 mm monthly rainfall in July in Galveston98
110 mm monthly rainfall in August in Galveston110
138 mm monthly rainfall in September in Galveston138
80 mm monthly rainfall in October in Galveston80
85 mm monthly rainfall in November in Galveston85
89 mm monthly rainfall in December in Galveston89

More about Galveston

Galveston by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Texas (Galveston) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Galveston?

Galveston has a temperate climate with hot summers and some rainfall in all months.

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Galveston, Texas hurricane season

% of month affected by tropical storms
0
0
0
0
0
1.4%
1.5%
2.1%
3.2%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about the USA

Compare Galveston with the USA

Below the Galveston chart shows average maximum daytime temperature for Galveston, Texas, USA and the USA (Washington).

Maximum daytime temperature (°C)

Galveston, Texas, USA
USA (Washington)
15
5
16
7
20
13
24
19
27
24
30
29
31
31
31
30
30
26
26
20
21
14
17
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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