World Resorts USA Provincetown Weather

Provincetown sea water temperature

Current sea water temperature:
+40.5°F
Minimum sea water temperature in January: 46.9°F
Maximum sea water temperature in January: 37.8°F
Average sea water temperature in January: 42.5°F

Sea water temperature for the last 10 days:

January 11 40.5°F January 6 41.2°F
January 10 41.2°F January 5 41.2°F
January 9 40.3°F January 4 41.2°F
January 8 40.1°F January 3 41.7°F
January 7 41.0°F January 2 41.5°F

When is the warmest sea in Provincetown?

Based on the data about daily sea water temperature for the last three years the warmest sea in Provincetown was noticed in August, July and September.

Monthly Sea Temperatures in Provincetown, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 66.8°F. The highest and lowest sea temperatures during the month were 72.5°F and 62.2°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 67.5°F. The highest and lowest sea temperatures during the month were 69.6°F and 63.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 67.5°F and 61.7°F.

Best time for vacation in Provincetown

Sunniest months:
November 15 days
June 13 days
August 13 days
Warmest months:
July 74.3 °F
August 73.5 °F
September 68.6 °F
Warmest sea temp:
August 68.4 °F
July 67.5 °F
September 65.3 °F
Coldest months:
January 36.2 °F
February 36.5 °F
December 40.8 °F
Rainiest months:
January 3 days
April 3 days
December 3 days
Windiest months:
December 15.4 mph
January 14.5 mph
February 14.2 mph

Provincetown on a weather map

Provincetown
+34°F
E 30 mph
Feels like: +21°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+48°F
+61°F
+72°F
+75°F
+68°F
+32°F
+57°F
+50°F
+61°F
+57°F
+48°F
+30°F
24 Hours Forecast
Provincetown
Local time: 23:35
January 12, monday
0000
34°F
E
30 mph
0300
32°F
E
36 mph
0600
30°F
E
35 mph
0900
30°F
E
33 mph
1200
32°F
E
29 mph
1500
34°F
E
21 mph
1800
36°F
NE
18 mph
2100
36°F
NE
23 mph
Units of measurement: °C / °F