World sea water temperatures

Water temperature in Dennis Port in July

Is it warm enough to swim in Dennis Port in July? Average water temperature in Dennis Port in July is 69.4°F and therefore suitable for comfortable swimming. The warmest sea in Dennis Port in July is 77.2°F, and the coldest is 60.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Dennis Port

Changes water temperature in Dennis Port in July 2025, 2024

To get an accurate forecast for the water temperature in Dennis Port for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Dennis Port, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of July.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 165.8°F70.7°F61.3°F71.4°F
July 266.2°F69.8°F61.3°F70.5°F
July 368.2°F67.6°F61.5°F70.3°F
July 469.1°F69.4°F61.7°F70°F
July 567.8°F68.9°F62.1°F70°F
July 668.9°F69.6°F60.8°F70.9°F
July 768.2°F69.3°F61.3°F71.1°F
July 870.2°F70.3°F61.3°F71.4°F
July 969.8°F73.2°F61.7°F73.2°F
July 1069.4°F73.9°F61.9°F73.9°F
July 1169.8°F74.3°F61.9°F74.3°F
July 1265.1°F74.5°F62.6°F74.5°F
July 1366.6°F72.3°F63.9°F73.4°F
July 1468°F76.6°F64.4°F76.6°F
July 1570.5°F75.7°F64°F75.7°F
Day 2025 2024 Min Max
July 1671.4°F75°F63.3°F75°F
July 1772.1°F74.5°F64°F77°F
July 1872.7°F75.7°F65.1°F75.7°F
July 1972°F75.7°F65.1°F75.7°F
July 2071.4°F74.1°F63.1°F74.7°F
July 2172.1°F75.2°F62.4°F75.2°F
July 2272°F73.4°F63.7°F75.9°F
July 2371.4°F72.3°F63.3°F75°F
July 2471.8°F71.8°F64°F74.8°F
July 2571.8°F71.8°F64.8°F75.4°F
July 2672.3°F72.9°F65.7°F75.4°F
July 2770.9°F73.8°F65.8°F74.7°F
July 2867.8°F72.9°F66.2°F76.3°F
July 2966.6°F71.4°F66.6°F77.2°F
July 3071.1°F70.2°F66.9°F75.6°F
July 3172.7°F71.2°F67.5°F76.5°F
Dennis Port water temp chart in July

Average water temperature in Dennis Port in July over a decade

20162017201820192020
70.3°F68.2°F69.8°F71.2°F71.8°F
20212022202320242025
70.7°F72.1°F72°F72.5°F69.8°F

Dennis Port sea state in July

Chart comparing the height of waves in Dennis Port in July over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Dennis Port in July

Dennis Port water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in July?

Want to know where the water temperature in July is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Sea Street Beach69.4°F60.8°F77.2°F
Bass River70.2°F61.2°F78.1°F
Smugglers Beach70.2°F61.2°F78.1°F
Bank Street Beach68.5°F60.6°F75.4°F
Harwich Port69.6°F60.8°F78.3°F
West Dennis70.2°F61.2°F78.6°F
West Yarmouth70.9°F61.3°F78.8°F
Sea Gull Beach70.9°F61.3°F78.8°F
Seagull Beach70.9°F61.3°F78.8°F
Lewis Bay70.9°F61.3°F78.8°F

Cape Cod photo gallery

  • Cape Cod
  • Sunset at old silver beach
  • Fisherman of New Seabury
  • Golden@sunset

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Cape Cod best beach

Current rating: (0 votes cast)

If you know this place (Dennis Port) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

Get widget or API for your website

Our report for Dennis Port is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Contact us: admin@seatemperature.info
privacy policy