Current sea water temperature:
+40.8°F
| Minimum sea water temperature in January: | 46.2°F |
| Maximum sea water temperature in January: | 36.9°F |
| Average sea water temperature in January: | 42.2°F |
| more information | |
14 days
forecast
forecast
| Chatham |
monthly
weather
weather
| Chatham |
Sea water temperature for the last 10 days:
| January 1 | 40.8°F | December 27 | 41.7°F |
| December 31 | 40.3°F | December 26 | 42.1°F |
| December 30 | 41.4°F | December 25 | 42.1°F |
| December 29 | 41.2°F | December 24 | 42.6°F |
| December 28 | 41.4°F | December 23 | 42.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Chatham?
Based on the data about daily sea water temperature for the last three years the warmest sea in Chatham was noticed in August, July and September.
Monthly Sea Temperatures in Chatham, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.3°F and 65.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 66.9°F. The highest and lowest sea temperatures during the month were 69.8°F and 62.8°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 65.5°F. The highest and lowest sea temperatures during the month were 68.5°F and 63.9°F.
current
weather
weather
| Chatham |
weather in
January
January
| Chatham |
Best time for vacation in Chatham
Chatham on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Chatham
Local time: 20:30
January 01, thursday
2100
18°F
E
27 mph
27 mph
January 02, friday
0000
16°F
E
26 mph
26 mph
0300
16°F
E
21 mph
21 mph
0600
18°F
E
17 mph
17 mph
0900
25°F
E
16 mph
16 mph
1200
28°F
E
16 mph
16 mph
1500
30°F
E
16 mph
16 mph
1800
30°F
E
17 mph
17 mph
