Measurements:
°C
°F
Provincetown
34°F
NE 22 mph
Feels like: 24°F
Precip: 0%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+36.0°F
Maximum Sea Water Temperature in March: 41.2°F
Minimum Sea Water Temperature in March: 33.4°F
Average water temperature in March: 38.4°F

Sea Water Temperature for the Last 10 Days:

March 13 36.0°F March 08 34.8°F
March 12 36.0°F March 07 34.0°F
March 11 34.8°F March 06 35.0°F
March 10 35.2°F March 05 33.6°F
March 09 36.0°F March 04 34.2°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
September 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 34.0 °F
February 34.3 °F
December 39.8 °F
The most rainy months:
October 3 days
April 3 days
December 3 days
The most windy months:
December 15 mph
January 15 mph
February 14 mph

Provincetown on the Weather Map

USA Resorts:
NAME
Chicago +42
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +96
Los Angeles +100
Maui +70
Miami +84
Miami Beach +82
New York +42
San Diego +94
San Francisco +72
Sarasota +80
Tampa +80
Washington +56
24 Hours Weather Forecast
Provincetown
Local time: 17:06
13 mar, friday
1800 34°F
NE
22 mph
2100 32°F
N
22 mph
14 mar, saturday
0000 36°F
N
29 mph
0300 38°F
NE
35 mph
0600 38°F
NE
20 mph
0900 38°F
E
22 mph
1200 40°F
E
22 mph
1500 40°F
E
25 mph