World Resorts USA Provincetown Weather

Provincetown sea water temperature

Current sea water temperature:
+46.2°F
Minimum sea water temperature in April: 48.4°F
Maximum sea water temperature in April: 38.5°F
Average sea water temperature in April: 43.3°F

Sea water temperature for the last 10 days:

April 29 46.2°F April 24 45.3°F
April 28 45.3°F April 23 43.0°F
April 27 43.3°F April 22 44.4°F
April 26 44.4°F April 21 43.7°F
April 25 44.4°F April 20 44.4°F

When is the warmest sea in Provincetown?

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

Monthly Sea Temperatures in Provincetown, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 66.8°F. The highest and lowest sea temperatures during the month were 72.5°F and 62.2°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 67.5°F. The highest and lowest sea temperatures during the month were 69.6°F and 63.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 67.5°F and 61.7°F.

Best time for vacation in Provincetown

Sunniest months:
November 15 days
September 13 days
June 13 days
Warmest months:
July 74.3 °F
August 73.5 °F
September 68.6 °F
Warmest sea temp:
August 68.4 °F
July 67.5 °F
September 65.3 °F
Coldest months:
January 35.6 °F
February 35.8 °F
December 40.8 °F
Rainiest months:
October 3 days
December 3 days
July 2 days
Windiest months:
December 15.4 mph
January 15.3 mph
February 14.6 mph

Provincetown on a weather map

Provincetown
+45°F
S 14 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+73°F
+73°F
+57°F
+52°F
+79°F
+79°F
+66°F
+54°F
+54°F
+50°F
+77°F
+75°F
+75°F
+52°F
24 Hours Forecast
Provincetown
Local time: 08:24
April 29, wednesday
0900
45°F
S
14 mph
1200
45°F
S
14 mph
1500
46°F
S
9 mph
1800
46°F
SW
11 mph
2100
45°F
W
4 mph
April 30, thursday
0000
46°F
N
2 mph
0300
46°F
SE
2 mph
0600
46°F
SW
8 mph
Units of measurement: °C / °F