Measurements:
°C
°F
Provincetown
62°F
SW 14 mph
Feels like: 62°F
Precip: 4%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+67.6°F
Maximum Sea Water Temperature in September: 74.8°F
Minimum Sea Water Temperature in September: 61.0°F
Average water temperature in September: 67.2°F

Sea Water Temperature for the Last 10 Days:

September 15 67.6°F September 10 67.4°F
September 14 66.4°F September 09 67.0°F
September 13 67.2°F September 08 66.2°F
September 12 68.4°F September 07 68.2°F
September 11 68.8°F September 06 70.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Provincetown was 71.9°F. The maximum and minimum values were 67.2°F and 75.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Provincetown was 68.8°F. The maximum and minimum values were 65.2°F and 72.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Provincetown was 69.1°F. The maximum and minimum values were 66.2°F and 72.6°F respectively.

Best Time to Visit Provincetown
The most sunny months:
November 15 days
June 14 days
September 13 days
The most warm months:
July 77.3 °F
August 76.5 °F
September 70.7 °F
Warmest sea temperature:
August 70.6 °F
July 69.4 °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
December 3 days
September 2 days
The most windy months:
December 15 mph
January 15 mph
February 14 mph

Provincetown on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
24 Hours Weather Forecast
Provincetown
Local time: 09:42
15 sep, tuesday
1200 62°F
SW
11 mph
1500 62°F
SW
8 mph
1800 62°F
W
9 mph
2100 62°F
NW
9 mph
16 sep, wednesday
0000 62°F
N
9 mph
0300 62°F
NE
7 mph
0600 62°F
NE
7 mph
0900 62°F
NE
9 mph