World Resorts USA Edgartown Weather

Edgartown sea water temperature

Current sea water temperature:
+69.4°F
Minimum sea water temperature in July: 76.1°F
Maximum sea water temperature in July: 65.5°F
Average sea water temperature in July: 71.0°F

Sea water temperature for the last 10 days:

July 21 69.4°F July 16 73.4°F
July 20 69.3°F July 15 72.0°F
July 19 69.1°F July 14 71.1°F
July 18 68.7°F July 13 70.5°F
July 17 68.4°F July 12 69.8°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 69.7°F. The highest and lowest sea temperatures during the month were 73.4°F and 67.3°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 71.0 °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
N 14 mph
Feels like: +77°F
Precip.: 8%
Places in USA:
Name
°F
+73°F
+81°F
+77°F
+86°F
+66°F
+86°F
+72°F
+84°F
+75°F
+68°F
+55°F
+68°F
+84°F
+79°F
+75°F
24 Hours Forecast
Edgartown
Local time: 09:43
July 21, tuesday
1200
79°F
NW
16 mph
1500
79°F
NW
20 mph
1800
73°F
NW
19 mph
2100
73°F
N
22 mph
July 22, wednesday
0000
72°F
NE
32 mph
0300
72°F
NE
25 mph
0600
72°F
NE
20 mph
0900
72°F
NE
19 mph
Units of measurement: °C / °F