Current sea water temperature:
+66.0°F
| Minimum sea water temperature in July: | 74.5°F |
| Maximum sea water temperature in July: | 61.9°F |
| Average sea water temperature in July: | 68.5°F |
| more information | |
14 days
forecast
forecast
| Mystic |
monthly
weather
weather
| Mystic |
Sea water temperature for the last 10 days:
| July 21 | 66.0°F | July 16 | 70.5°F |
| July 20 | 66.4°F | July 15 | 69.6°F |
| July 19 | 67.5°F | July 14 | 67.1°F |
| July 18 | 67.6°F | July 13 | 66.9°F |
| July 17 | 68.2°F | July 12 | 68.2°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 67.4°F. The highest and lowest sea temperatures during the month were 70.5°F and 65.8°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
July
July
| Mystic |
Best time for vacation in Mystic
Mystic on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mystic
Local time: 09:43
July 21, tuesday
1200
77°F
NW
13 mph
13 mph
1500
73°F
NW
14 mph
14 mph
1800
72°F
NW
13 mph
13 mph
2100
72°F
N
11 mph
11 mph
July 22, wednesday
0000
70°F
N
13 mph
13 mph
0300
72°F
NE
12 mph
12 mph
0600
70°F
NE
10 mph
10 mph
0900
73°F
NE
11 mph
11 mph
