Measurements:
°C
°F
Provincetown
86°F
N 14 mph
Feels like: 88°F
Precip: 3%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+71.2°F
Maximum Sea Water Temperature in August: 77.4°F
Minimum Sea Water Temperature in August: 63.6°F
Average water temperature in August: 70.4°F

Sea Water Temperature for the Last 10 Days:

August 05 71.2°F July 31 66.4°F
August 04 71.6°F July 30 70.4°F
August 03 70.0°F July 29 68.6°F
August 02 67.2°F July 28 66.4°F
August 01 69.2°F July 27 68.2°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: 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: 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 14 days
September 13 days
The most warm months:
July 77.3 °F
August 76.1 °F
September 70.7 °F
Warmest sea temperature:
August 70.4 °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
July 2 days
The most windy months:
December 15 mph
January 15 mph
February 14 mph

Provincetown on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Provincetown
Local time: 15:17
05 aug, wednesday
1800 82°F
NE
19 mph
2100 72°F
NE
18 mph
06 aug, thursday
0000 72°F
NE
15 mph
0300 72°F
NE
11 mph
0600 72°F
NE
11 mph
0900 74°F
NE
10 mph
1200 78°F
N
9 mph
1500 80°F
NE
12 mph