Measurements:
°C
°F
Brunswick
90°F
N 7 mph
Feels like: 94°F
Precip: 3%
World Resorts USA Brunswick Weather

Brunswick Sea Water Temperature

Current Sea Water Temperature:
+66.8°F
Maximum Sea Water Temperature in August: 74.2°F
Minimum Sea Water Temperature in August: 63.4°F
Average water temperature in August: 67.9°F

Sea Water Temperature for the Last 10 Days:

August 05 66.8°F July 31 64.8°F
August 04 67.2°F July 30 66.2°F
August 03 65.6°F July 29 66.0°F
August 02 65.4°F July 28 64.8°F
August 01 65.8°F July 27 64.2°F

When is the Warmest Sea for Brunswick?

According to our data for the last three years for Brunswick the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Brunswick was 66.6°F. The maximum and minimum values were 63.4°F and 72.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Brunswick was 65.3°F. The maximum and minimum values were 60.6°F and 69.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Brunswick was 63.5°F. The maximum and minimum values were 61.2°F and 67.2°F respectively.

Best Time to Visit Brunswick
The most sunny months:
October 13 days
September 13 days
November 13 days
The most warm months:
July 80.8 °F
August 78.5 °F
June 74.5 °F
Warmest sea temperature:
August 67.9 °F
July 66.2 °F
September 63.0 °F
The most cold months:
January 27.4 °F
February 28.7 °F
December 33.7 °F
The most rainy months:
July 2 days
August 2 days
March 2 days
The most windy months:
December 9 mph
March 8 mph
January 8 mph

Brunswick on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Brunswick
Local time: 15:17
05 aug, wednesday
1800 82°F
N
6 mph
2100 70°F
NE
6 mph
06 aug, thursday
0000 68°F
E
4 mph
0300 68°F
SE
2 mph
0600 66°F
S
2 mph
0900 76°F
S
2 mph
1200 82°F
N
4 mph
1500 82°F
N
7 mph