Measurements:
°C
°F
Brunswick
94°F
E 15 mph
Feels like: 92°F
Precip: 1%
World Resorts USA Brunswick Weather

Brunswick Sea Water Temperature

Current Sea Water Temperature:
+67.8°F
Maximum Sea Water Temperature in July: 75.0°F
Minimum Sea Water Temperature in July: 60.4°F
Average water temperature in July: 66.4°F

Sea Water Temperature for the Last 10 Days:

July 15 67.8°F July 10 67.8°F
July 14 67.4°F July 09 65.6°F
July 13 68.0°F July 08 66.0°F
July 12 68.0°F July 07 66.8°F
July 11 68.0°F July 06 67.6°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 67.1°F. The maximum and minimum values were 64.8°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 79.8 °F
August 78.5 °F
June 74.5 °F
Warmest sea temperature:
August 67.9 °F
July 66.4 °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 3 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 +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Brunswick
Local time: 14:18
15 jul, wednesday
1500 94°F
E
15 mph
1800 90°F
SE
14 mph
2100 78°F
E
9 mph
16 jul, thursday
0000 72°F
E
8 mph
0300 66°F
E
9 mph
0600 66°F
E
9 mph
0900 74°F
SE
10 mph
1200 80°F
E
9 mph