Current sea water temperature:
+39.6°F
| Minimum sea water temperature in January: | 47.1°F |
| Maximum sea water temperature in January: | 38.7°F |
| Average sea water temperature in January: | 43.1°F |
| more information | |
14 days
forecast
forecast
| Mystic |
monthly
weather
weather
| Mystic |
Sea water temperature for the last 10 days:
| January 13 | 39.6°F | January 8 | 40.3°F |
| January 12 | 39.7°F | January 7 | 40.3°F |
| January 11 | 39.0°F | January 6 | 40.5°F |
| January 10 | 39.7°F | January 5 | 40.6°F |
| January 9 | 39.6°F | January 4 | 41.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Mystic?
Based on the data about daily sea water temperature for the last three years the warmest sea in Mystic was noticed in August, July and September.
Monthly Sea Temperatures in Mystic, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 73.6°F and 67.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.9°F. The highest and lowest sea temperatures during the month were 72.0°F and 65.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.2°F. The highest and lowest sea temperatures during the month were 70.9°F and 66.9°F.
current
weather
weather
| Mystic |
weather in
January
January
| Mystic |
Best time for vacation in Mystic
Mystic on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mystic
Local time: 05:13
January 13, tuesday
0600
32°F
E
13 mph
13 mph
0900
34°F
E
12 mph
12 mph
1200
41°F
E
12 mph
12 mph
1500
41°F
NE
11 mph
11 mph
1800
39°F
NE
12 mph
12 mph
2100
41°F
N
16 mph
16 mph
January 14, wednesday
0000
41°F
NE
18 mph
18 mph
0300
41°F
NE
16 mph
16 mph
