Measurements:
°C
°F
Mystic
60°F
SE 12 mph
Feels like: 56°F
Precip: 20%
World Resorts USA Mystic Weather

Mystic Sea Water Temperature

Current Sea Water Temperature:
+60.8°F
Maximum Sea Water Temperature in October: 71.0°F
Minimum Sea Water Temperature in October: 60.8°F
Average water temperature in October: 64.9°F

Sea Water Temperature for the Last 10 Days:

October 26 60.8°F October 21 62.6°F
October 25 61.0°F October 20 62.8°F
October 24 60.8°F October 19 63.6°F
October 23 61.4°F October 18 62.8°F
October 22 62.2°F October 17 64.2°F

When is the Warmest Sea for Mystic?

According to our data for the last three years for Mystic 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Mystic was 72.7°F. The maximum and minimum values were 70.6°F and 77.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Mystic was 69.5°F. The maximum and minimum values were 67.6°F and 72.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Mystic was 70.3°F. The maximum and minimum values were 65.4°F and 72.6°F respectively.

Best Time to Visit Mystic
The most sunny months:
November 16 days
October 14 days
December 14 days
The most warm months:
July 83.3 °F
August 81.6 °F
June 76.6 °F
Warmest sea temperature:
August 72.3 °F
July 70.6 °F
September 70.2 °F
The most cold months:
January 34.7 °F
February 35.9 °F
December 40.1 °F
The most rainy months:
July 3 days
November 3 days
October 3 days
The most windy months:
January 10 mph
December 10 mph
March 10 mph

Mystic on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +76
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +66
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +56
24 Hours Weather Forecast
Mystic
Local time: 22:44
27 oct, tuesday
0000 60°F
SE
12 mph
0300 56°F
S
14 mph
0600 52°F
S
14 mph
0900 48°F
S
14 mph
1200 54°F
SW
7 mph
1500 56°F
NW
5 mph
1800 52°F
N
6 mph
2100 52°F
N
3 mph