Measurements:
°C
°F
Brunswick
36°F
E 6 mph
Feels like: 32°F
Precip: 0%
World Resorts USA Brunswick Weather

Brunswick Sea Water Temperature

Current Sea Water Temperature:
+37.8°F
Maximum Sea Water Temperature in January: 45.4°F
Minimum Sea Water Temperature in January: 35.0°F
Average water temperature in January: 39.9°F

Sea Water Temperature for the Last 10 Days:

January 08 37.8°F January 03 37.2°F
January 07 37.8°F January 02 37.8°F
January 06 37.8°F January 01 38.2°F
January 05 37.0°F December 31 38.8°F
January 04 36.4°F December 30 38.8°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Brunswick was 65.2°F. The maximum and minimum values were 62.0°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:
September 13 days
November 13 days
October 13 days
The most warm months:
July 79.8 °F
August 78.5 °F
June 73.7 °F
Warmest sea temperature:
August 67.9 °F
July 66.4 °F
September 63.0 °F
The most cold months:
January 27.8 °F
February 28.8 °F
December 33.7 °F
The most rainy months:
July 3 days
April 3 days
August 2 days
The most windy months:
December 9 mph
February 8 mph
November 8 mph

Brunswick on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Brunswick
Local time: 15:29
08 jan, thursday
1800 36°F
E
4 mph
2100 32°F
E
4 mph
09 jan, friday
0000 26°F
E
4 mph
0300 22°F
E
4 mph
0600 22°F
NE
4 mph
0900 28°F
NE
8 mph
1200 38°F
N
12 mph
1500 38°F
N
15 mph