World Resorts USA Galveston Weather

Galveston sea water temperature

Current sea water temperature:
+84.9°F
Minimum sea water temperature in June: 87.8°F
Maximum sea water temperature in June: 79.7°F
Average sea water temperature in June: 84.4°F

Sea water temperature for the last 10 days:

June 26 84.9°F June 21 84.4°F
June 25 85.3°F June 20 84.0°F
June 24 84.9°F June 19 83.7°F
June 23 84.7°F June 18 83.3°F
June 22 84.4°F June 17 83.7°F

When is the warmest sea in Galveston?

Based on the data about daily sea water temperature for the last three years the warmest sea in Galveston was noticed in August, July and September.

Monthly Sea Temperatures in Galveston, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 87.9°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 87.3°F and 83.8°F.

Best time for vacation in Galveston

Sunniest months:
October 18 days
November 14 days
September 14 days
Warmest months:
August 89.2 °F
July 88.3 °F
June 87.3 °F
Warmest sea temp:
August 87.4 °F
July 86.0 °F
September 84.9 °F
Coldest months:
January 58.6 °F
February 60.6 °F
December 63.4 °F
Rainiest months:
November 3 days
July 3 days
May 3 days
Windiest months:
April 12.3 mph
January 11.5 mph
May 11.2 mph

Galveston on a weather map

Galveston
+86°F
N 16 mph
Feels like: +97°F
Precip.: 9%
Places in USA:
Name
°F
+79°F
+79°F
+108°F
+77°F
+88°F
+86°F
+75°F
+82°F
+86°F
+72°F
+63°F
+91°F
+93°F
+88°F
+70°F
24 Hours Forecast
Galveston
Local time: 17:20
June 26, friday
1800
86°F
N
16 mph
2100
82°F
N
17 mph
June 27, saturday
0000
81°F
N
21 mph
0300
79°F
N
19 mph
0600
82°F
N
17 mph
0900
84°F
N
17 mph
1200
84°F
N
16 mph
1500
84°F
N
16 mph
Units of measurement: °C / °F