World sea water temperatures

Water temperature in Roche Harbor (WA) in March

Home > United States > Washington > Roche Harbor

Is it warm enough to swim in Roche Harbor in March? Average water temperature in Roche Harbor in March is 45.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Roche Harbor in March is 49.5°F, and the coldest is 43.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Roche Harbor

Changes water temperature in Roche Harbor in March 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
March 145.9°F46.6°F43.9°F47.7°F
March 246°F46.6°F44.4°F48°F
March 345.5°F46.6°F45°F47.8°F
March 445.5°F46.6°F44.8°F47.7°F
March 545.7°F46.8°F44.6°F47.3°F
March 646°F46.9°F44.4°F48.2°F
March 745.7°F46.2°F44.2°F48°F
March 845.1°F46.2°F44.6°F47.8°F
March 945.3°F46.2°F44.4°F47.8°F
March 1045.5°F45.7°F44.1°F46.4°F
March 1145.7°F46.2°F44.1°F47.8°F
March 1245.9°F46.2°F43.9°F48.2°F
March 1345.9°F46.4°F44.1°F46.4°F
March 1446.4°F46.2°F44.1°F48.7°F
March 1546.4°F45.5°F44.2°F47.3°F
Day 2025 2024 Min Max
March 1646.4°F46.8°F44.4°F48.6°F
March 1745.7°F46.6°F44.4°F48.7°F
March 1845.9°F47.1°F44.6°F48.7°F
March 1945.9°F46.8°F44.1°F48.7°F
March 2046°F46.9°F43.9°F49.1°F
March 2145.9°F46.6°F44.2°F48.9°F
March 2245.9°F46.8°F44.4°F48.9°F
March 2345.9°F46.8°F44.4°F48.4°F
March 2446°F46.9°F44.4°F48.2°F
March 2546.9°F46.9°F45°F48.4°F
March 2645°F47.1°F45°F48.9°F
March 2745.7°F47.3°F45°F49.1°F
March 2846°F46.9°F45.1°F48.7°F
March 2946°F47.1°F45.1°F48.7°F
March 3046.2°F47.3°F45.1°F48.9°F
March 3146.2°F47.3°F45°F49.5°F
Roche Harbor water temp chart in March

Average water temperature in Roche Harbor in March over a decade

20162017201820192020
47.8°F45.9°F45.9°F45.9°F45.9°F
20212022202320242025
45.7°F45.5°F45.1°F46.6°F45.9°F

Roche Harbor 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 March?

Want to know where the water temperature in March 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 March. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Victoria46.2°F44.4°F49.6°F
James Bay46°F44.4°F50°F
Lummi Island45.9°F43°F50.5°F
Point Roberts45.9°F43.3°F49.5°F
Cowichan Bay46°F43.5°F50.4°F
Birch Bay45.9°F43.7°F49.6°F
Anacortes46°F43.5°F50.2°F
Galiano Island45.7°F42.6°F49.6°F
Marietta45.9°F42.6°F50.4°F
Tsawwassen45.9°F43.2°F49.6°F

Washington photo gallery

  • Washington
  • Mutiny Bay, Robinson Beach, Whidbey Island
  • Liberty Bay - Poulsbo
  • Mutiny Bay, Robinson Beach, Whidbey Island

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 Washington best beach

Current rating: (0 votes cast)

If you know this place (Roche Harbor) 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 Roche Harbor 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