Measurements:
°C
°F
Provincetown
78°F
S 8 mph
Feels like: 82°F
Precip: 4%
World Resorts USA Provincetown Weather

Provincetown Sea Water Temperature

Current Sea Water Temperature:
+69.0°F
Maximum Sea Water Temperature in July: 76.2°F
Minimum Sea Water Temperature in July: 61.4°F
Average water temperature in July: 69.4°F

Sea Water Temperature for the Last 10 Days:

July 15 69.0°F July 10 66.2°F
July 14 69.0°F July 09 66.6°F
July 13 68.8°F July 08 70.0°F
July 12 67.4°F July 07 71.0°F
July 11 67.2°F July 06 70.8°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
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 34.0 °F
February 34.3 °F
December 39.8 °F
The most rainy months:
December 3 days
October 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 +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Provincetown
Local time: 14:18
15 jul, wednesday
1500 78°F
S
8 mph
1800 82°F
E
9 mph
2100 76°F
S
17 mph
16 jul, thursday
0000 70°F
SE
10 mph
0300 72°F
E
12 mph
0600 70°F
E
12 mph
0900 70°F
NE
9 mph
1200 76°F
NE
7 mph