Measurements:
°C
°F
Provincetown
16°F
SE 27 mph
Feels like: -2°F
Precip: 0%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+48.0°F
Maximum Sea Water Temperature in December: 51.0°F
Minimum Sea Water Temperature in December: 43.0°F
Average water temperature in December: 47.1°F

Sea Water Temperature for the Last 10 Days:

December 04 48.0°F November 29 48.6°F
December 03 48.0°F November 28 49.6°F
December 02 48.4°F November 27 50.0°F
December 01 48.0°F November 26 49.6°F
November 30 48.0°F November 25 50.0°F

When is the Warmest Sea for Provincetown?

According to our data for the last three years for Provincetown the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Provincetown was 68.7°F. The maximum and minimum values were 63.6°F and 75.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Provincetown was 69.4°F. The maximum and minimum values were 65.2°F and 71.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Provincetown was 66.8°F. The maximum and minimum values were 63.0°F and 69.4°F respectively.

Best Time to Visit Provincetown
The most sunny months:
November 15 days
June 13 days
August 13 days
The most warm months:
July 77.0 °F
August 76.1 °F
September 70.7 °F
Warmest sea temperature:
August 70.4 °F
July 69.5 °F
September 67.0 °F
The most cold months:
January 34.7 °F
February 35.0 °F
December 40.9 °F
The most rainy months:
January 3 days
April 3 days
October 3 days
The most windy months:
January 14 mph
February 14 mph
December 14 mph

Provincetown on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Provincetown
Local time: 02:18
05 dec, friday
0300 16°F
SE
27 mph
0600 16°F
SE
12 mph
0900 18°F
SE
6 mph
1200 22°F
NE
8 mph
1500 26°F
NE
16 mph
1800 28°F
NE
14 mph
2100 30°F
NE
12 mph
06 dec, saturday
0000 32°F
NE
11 mph