Galveston weather by month

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

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Galveston (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	15	16	20	24	27	30	31	31	30	26	21	17
Min temperature (night-time)	8	10	13	18	22	25	26	26	24	19	14	10
Heat & Humidity	0	0	0	0	M	H	VH	VH	H	L	0	0
Sea temperature	15	15	17	21	25	28	29	30	29	25	21	17

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	5	6	7	7	9	10	10	9	8	8	6	5
Daily hours of daylight	11	11	12	13	14	14	14	13	12	11	11	10
UV Index (Maximum)	4	6	8	10	10	11	11	10	9	7	5	4

Rainfall in Galveston

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	10	7	7	5	7	7	8	9	10	6	7	8
Average monthly rainfall (mm)	86	77	57	71	99	111	98	110	138	80	85	89

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.

Galveston weather in January

Expect daytime maximum temperatures of 15°C in Galveston, Texas in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 86 mm of rainfall in the month.

15
15°C max day temperature
5
5 hours of sunshine per day
10
10 days with some rainfall
8
8°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
86
86 mm of monthly rainfall
4
4 (Moderate) UV index
15
15°C sea temperature

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Galveston weather in February

Expect daytime maximum temperatures of 16°C in Galveston, Texas in February based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 77 mm of rainfall in the month.

16
16°C max day temperature
6
6 hours of sunshine per day
7
7 days with some rainfall
10
10°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
77
77 mm of monthly rainfall
6
6 (High) UV index
15
15°C sea temperature

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Galveston weather in March

Expect daytime maximum temperatures of 20°C in Galveston, Texas in March based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 57 mm of rainfall in the month.

20
20°C max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
13
13°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
57
57 mm of monthly rainfall
8
8 (Very High) UV index
17
17°C sea temperature

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Galveston weather in April

Expect daytime maximum temperatures of 24°C in Galveston, Texas in April based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 71 mm of rainfall in the month.

24
24°C max day temperature
7
7 hours of sunshine per day
5
5 days with some rainfall
18
18°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
71
71 mm of monthly rainfall
10
10 (Very High) UV index
21
21°C sea temperature

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Galveston weather in May

Expect daytime maximum temperatures of 27°C in Galveston, Texas in May based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 99 mm of rainfall in the month.

27
27°C max day temperature
9
9 hours of sunshine per day
7
7 days with some rainfall
22
22°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
99
99 mm of monthly rainfall
10
10 (Very High) UV index
25
25°C sea temperature

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Galveston weather in June

Expect daytime maximum temperatures of 30°C in Galveston, Texas in June and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 111 mm of rainfall in the month.

30
30°C max day temperature
10
10 hours of sunshine per day
7
7 days with some rainfall
25
25°C min night temperature
14
14 hours of daylight per day
H
High heat & humidity
111
111 mm of monthly rainfall
11
11 (Extreme) UV index
28
28°C sea temperature

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Galveston weather in July

Expect daytime maximum temperatures of 31°C in Galveston, Texas in July and very high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 98 mm of rainfall in the month.

31
31°C max day temperature
10
10 hours of sunshine per day
8
8 days with some rainfall
26
26°C min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
98
98 mm of monthly rainfall
11
11 (Extreme) UV index
29
29°C sea temperature

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Galveston weather in August

Expect daytime maximum temperatures of 31°C in Galveston, Texas in August and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 110 mm of rainfall in the month.

31
31°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
26
26°C min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
110
110 mm of monthly rainfall
10
10 (Very High) UV index
30
30°C sea temperature

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Galveston weather in September

Expect daytime maximum temperatures of 30°C in Galveston, Texas in September and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 138 mm of rainfall in the month.

30
30°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
24
24°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
138
138 mm of monthly rainfall
9
9 (Very High) UV index
29
29°C sea temperature

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Galveston weather in October

Expect daytime maximum temperatures of 26°C in Galveston, Texas in October based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 80 mm of rainfall in the month.

26
26°C max day temperature
8
8 hours of sunshine per day
6
6 days with some rainfall
19
19°C min night temperature
11
11 hours of daylight per day
L
Low heat & humidity
80
80 mm of monthly rainfall
7
7 (High) UV index
25
25°C sea temperature

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Galveston weather in November

Expect daytime maximum temperatures of 21°C in Galveston, Texas in November based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 85 mm of rainfall in the month.

21
21°C max day temperature
6
6 hours of sunshine per day
7
7 days with some rainfall
14
14°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
85
85 mm of monthly rainfall
5
5 (Moderate) UV index
21
21°C sea temperature

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Galveston weather in December

Expect daytime maximum temperatures of 17°C in Galveston, Texas in December based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 89 mm of rainfall in the month.

17
17°C max day temperature
5
5 hours of sunshine per day
8
8 days with some rainfall
10
10°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
89
89 mm of monthly rainfall
4
4 (Moderate) UV index
17
17°C sea temperature

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