Current sea water temperature:
+66.0°F
| Minimum sea water temperature in September: | 70.7°F |
| Maximum sea water temperature in September: | 60.6°F |
| Average sea water temperature in September: | 65.6°F |
| more information | |
14 days
forecast
forecast
| Chatham |
monthly
weather
weather
| Chatham |
Sea water temperature for the last 10 days:
| September 19 | 66.0°F | September 14 | 66.6°F |
| September 18 | 66.6°F | September 13 | 66.0°F |
| September 17 | 65.7°F | September 12 | 66.6°F |
| September 16 | 65.7°F | September 11 | 66.7°F |
| September 15 | 66.4°F | September 10 | 66.4°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 69.5°F. The highest and lowest sea temperatures during the month were 73.2°F and 65.7°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 67.1°F. The highest and lowest sea temperatures during the month were 70.3°F and 65.7°F.
current
weather
weather
| Chatham |
weather in
September
September
| Chatham |
Best time for vacation in Chatham
Chatham on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Chatham
Local time: 06:11
September 19, saturday
0900
59°F
SW
16 mph
16 mph
1200
59°F
SW
15 mph
15 mph
1500
59°F
SW
11 mph
11 mph
1800
57°F
SW
7 mph
7 mph
2100
55°F
W
7 mph
7 mph
September 20, sunday
0000
55°F
NW
9 mph
9 mph
0300
55°F
NW
7 mph
7 mph
0600
55°F
NW
7 mph
7 mph
