Current sea water temperature:
+70.3°F
| Minimum sea water temperature in August: | 74.1°F |
| Maximum sea water temperature in August: | 64.2°F |
| Average sea water temperature in August: | 68.8°F |
| more information | |
14 days
forecast
forecast
| Chatham |
monthly
weather
weather
| Chatham |
Sea water temperature for the last 10 days:
| August 15 | 70.3°F | August 10 | 72.1°F |
| August 14 | 71.6°F | August 9 | 71.2°F |
| August 13 | 72.7°F | August 8 | 70.2°F |
| August 12 | 73.2°F | August 7 | 68.4°F |
| August 11 | 71.2°F | August 6 | 67.8°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 69.8°F. The highest and lowest sea temperatures during the month were 73.2°F and 66.2°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 68.0°F. The highest and lowest sea temperatures during the month were 70.0°F and 65.5°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
August
August
| Chatham |
Best time for vacation in Chatham
Chatham on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Chatham
Local time: 08:55
August 15, saturday
0900
73°F
S
9 mph
9 mph
1200
77°F
S
10 mph
10 mph
1500
72°F
SW
7 mph
7 mph
1800
72°F
NW
6 mph
6 mph
2100
68°F
N
6 mph
6 mph
August 16, sunday
0000
68°F
NE
6 mph
6 mph
0300
68°F
E
8 mph
8 mph
0600
66°F
E
2 mph
2 mph
