, with mild winters (though characterized by short cold waves) and long, hot and humid summers, during which there are quite frequent thunderstorms.
, on the coast of the Gulf of Mexico, on a barrier island. In summer, the waters that surround it make the climate particularly muggy, but with temperatures a little lower than in inland areas. Further north and overlooking Galveston Bay is the city of Houston.
of the coldest month (January) is of 13.4 °C (56 °F), that of the warmest month (August) is of 29.9 °C (85.9 °F).
, from December to February, is mild.
The sun shines quite often, although there are periods characterized by clouds, rain and wind.
There may be pleasantly warm periods even in the middle of winter, when the temperature can reach or exceed 20 °C (68 °F).
of 2 or 3 days, in which the minimum temperature drops around freezing, and the maximum remains around 5-7 °C (41/45 °F) or even below. Sometimes it can even
.
More rarely, quite intense frosts can occur. In recent decades, the record is -10.5 °C (13 °F), recorded in December 1989. In February 2021, the temperature dropped to -7 °C (19.5 °F).
, from June to September, is hot and muggy. Due to high humidity the heat is sweltering, even though the breeze blows from the sea. On the hottest days, the temperature usually reaches 35/37 °C (95/99 °F). In September 2000, it reached 40 °C (104 °F).
The sun often shines, but the sky is not always clear, as cloud coverings can form, which can give rise to thunderstorms.
From June to November (but with a higher probability from August to October), there is the risk of
. Being a city set on a flat island, Galveston is particularly exposed. It was hit hard by the "Galveston hurricane" in September 1900, by hurricane Alicia in August 1983, and by hurricane Ike in September 2008.
temperature ranges between 17.5 °C (63.5 °F) and 29.5 °C (85 °F). In winter, the sea is cold, while it becomes very warm in summer.
To visit Galveston, you can choose spring and autumn (in particular, from mid-March to mid-April and from mid-October to mid-November), to avoid the summer heat. In winter, there are long mild periods, but some cold days cannot be excluded.
. Here are the average temperatures.
January, the coldest month of the year, is generally a mild month. The average temperature is of
13.4 °C, with a minimum of
9.4 °C and a maximum of
17.3 °C.
On the coldest nights of the month, the temperature usually drops to around
1.5 °C. However, it dropped to
-3.9 °C in January 2018.
On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
28 °C in January 2000.
Precipitation amounts to
110 mm, distributed over 9 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
19.2 kph.
The average sea temperature is of
18 °C. Therefore, the sea is cold for swimming.
February is generally a very mild month. The average temperature is of
15.2 °C, with a minimum of
11.3 °C and a maximum of
19.1 °C.
On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
-4 °C in February 2011.
On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
27.2 °C in February 1993.
Precipitation amounts to
55 mm, distributed over 8 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
19.4 kph.
The average sea temperature is of
17.4 °C. Therefore, the sea is cold for swimming.
March is generally a warm month. The average temperature is of
18.4 °C, with a minimum of
14.7 °C and a maximum of
22.2 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
0 °C in March 2002.
On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
31.1 °C in March 2018.
Precipitation amounts to
75 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
19.8 kph.
The average sea temperature is of
18.6 °C. Therefore, the sea is very cool for swimming.
April is generally a warm month. The average temperature is of
21.9 °C, with a minimum of
18.3 °C and a maximum of
25.6 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
5 °C in April 2007.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
35 °C in April 2011.
Precipitation amounts to
50 mm, distributed over 6 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
20.7 kph.
The average sea temperature is of
21.1 °C. Therefore, the sea is cool for swimming.
May is generally a warm to hot, muggy month. The average temperature is of
25.7 °C, with a minimum of
22.4 °C and a maximum of
28.9 °C.
On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
10 °C in May 2013.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
33.9 °C in May 2011.
Precipitation amounts to
75 mm, distributed over 5 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
20.4 kph.
The average sea temperature is of
24.6 °C. Therefore, the sea is warm enough for swimming.
June is generally a very hot, muggy month. The average temperature is of
28.8 °C, with a minimum of
25.6 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
18.3 °C in June 2019.
On the warmest days of the month, the temperature usually reaches around
33.5 °C. However, it reached
37.8 °C in June 2012.
Precipitation amounts to
105 mm, distributed over 8 days.
The day lasts on average 14 hours and 0 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 10 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
18.3 kph.
The average sea temperature is of
28 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a very hot, muggy month. The average temperature is of
29.7 °C, with a minimum of
26.5 °C and a maximum of
32.9 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
21.7 °C in July 2000.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
38 °C in July 1991.
Precipitation amounts to
85 mm, distributed over 9 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
16.5 kph.
The average sea temperature is of
29.3 °C. Therefore, the sea is pleasantly warm and allows long swims.
August, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
29.9 °C, with a minimum of
26.6 °C and a maximum of
33.3 °C.
On the coldest nights of the month, the temperature usually drops to around
23.5 °C. However, it dropped to
21.1 °C in August 2017.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
38 °C in August 2000.
Precipitation amounts to
120 mm, distributed over 8 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
15.7 kph.
The average sea temperature is of
29.6 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
24.5 °C and a maximum of
31.5 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
14.4 °C in September 2000.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
40 °C in September 2000.
Precipitation amounts to
170 mm, distributed over 10 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
16.6 kph.
The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a warm to hot, muggy month. The average temperature is of
24.1 °C, with a minimum of
20.3 °C and a maximum of
27.8 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
3.3 °C in October 1993.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
33.3 °C in October 2019.
Precipitation amounts to
130 mm, distributed over 7 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
18 kph.
The average sea temperature is of
26.1 °C. Therefore, the sea is warm enough for swimming.
November is generally a warm month. The average temperature is of
18.6 °C, with a minimum of
14.8 °C and a maximum of
22.4 °C.
On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
0.8 °C in November 1991.
On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
29.4 °C in November 2016.
Precipitation amounts to
110 mm, distributed over 8 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
18.8 kph.
The average sea temperature is of
22.7 °C. Therefore, the sea can be considered barely acceptable for swimming.
December is generally a very mild month. The average temperature is of
14.8 °C, with a minimum of
10.9 °C and a maximum of
18.6 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-3 °C in December 1996.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
27.2 °C in December 2016.
Precipitation amounts to
105 mm, distributed over 10 days.
The day lasts on average 10 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
18.9 kph.
The average sea temperature is of
20 °C. Therefore, the sea is very cool for swimming.