World Resorts USA Edgartown Weather

Edgartown sea water temperature

Current sea water temperature:
+66.2°F
Minimum sea water temperature in June: 71.1°F
Maximum sea water temperature in June: 56.1°F
Average sea water temperature in June: 63.5°F

Sea water temperature for the last 10 days:

June 26 66.2°F June 21 64.4°F
June 25 65.7°F June 20 64.8°F
June 24 63.0°F June 19 64.6°F
June 23 63.3°F June 18 64.6°F
June 22 63.3°F June 17 64.6°F

When is the warmest sea in Edgartown?

Based on the data about daily sea water temperature for the last three years the warmest sea in Edgartown was noticed in August, July and September.

Monthly Sea Temperatures in Edgartown, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 73.2°F and 68.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 69.3°F. The highest and lowest sea temperatures during the month were 71.6°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 68.2°F. The highest and lowest sea temperatures during the month were 70.2°F and 66.4°F.

Best time for vacation in Edgartown

Sunniest months:
November 15 days
October 14 days
June 14 days
Warmest months:
July 74.0 °F
August 73.4 °F
September 69.3 °F
Warmest sea temp:
August 72.6 °F
July 71.2 °F
September 69.3 °F
Coldest months:
February 36.5 °F
January 36.6 °F
December 42.4 °F
Rainiest months:
January 3 days
October 3 days
July 2 days
Windiest months:
December 14.5 mph
January 14.5 mph
March 14.5 mph

Edgartown on a weather map

Edgartown
+72°F
NE 15 mph
Feels like: +72°F
Precip.: 14%
Places in USA:
Name
°F
+79°F
+79°F
+108°F
+77°F
+88°F
+86°F
+75°F
+82°F
+86°F
+72°F
+63°F
+91°F
+93°F
+88°F
+70°F
24 Hours Forecast
Edgartown
Local time: 18:18
June 26, friday
2100
68°F
NE
11 mph
June 27, saturday
0000
68°F
NE
8 mph
0300
68°F
NE
9 mph
0600
68°F
E
9 mph
0900
66°F
E
10 mph
1200
68°F
E
8 mph
1500
70°F
NE
12 mph
1800
68°F
NE
12 mph
Units of measurement: °C / °F