Measurements:
°C
°F
Provincetown
42°F
SE 9 mph
Feels like: 36°F
Precip: 0%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+39.0°F
Maximum Sea Water Temperature in January: 46.6°F
Minimum Sea Water Temperature in January: 36.4°F
Average water temperature in January: 41.6°F

Sea Water Temperature for the Last 10 Days:

January 08 39.0°F January 03 40.8°F
January 07 40.0°F January 02 40.6°F
January 06 40.2°F January 01 40.8°F
January 05 40.2°F December 31 40.0°F
January 04 40.2°F December 30 41.4°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 39.8 °F
The most rainy months:
January 3 days
April 3 days
December 3 days
The most windy months:
December 15 mph
January 14 mph
February 14 mph

Provincetown on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Provincetown
Local time: 15:32
08 jan, thursday
1800 40°F
SE
8 mph
2100 38°F
E
9 mph
09 jan, friday
0000 38°F
E
8 mph
0300 36°F
E
6 mph
0600 36°F
NE
10 mph
0900 38°F
NE
13 mph
1200 40°F
N
17 mph
1500 42°F
N
19 mph