Roche Harbor water temp

This data the coastal Roche Harbor ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current ocean temperature in Roche Harbor

Water temperature in Roche Harbor today is 55.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Roche Harbor was recorded in 2017 and was 57.7°F, and the coldest was recorded in 2008 at 51.8°F. Sea water temperature in Roche Harbor is expected to drop to 53.6°F in the next 10 days. September average water temperature in Roche Harbor is 53.4°F, the minimum temperature is 50.4°F, and the maximum is 58.1°F.

Throughout the year, the water temperature in Roche Harbor does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Roche Harbor in winter reaches 46.2°F, in spring 47.7°F, in summer the average temperature rises to 54°F, and in autumn it is 50.9°F.

Roche Harbor water temperature now

Surf Forecast in Roche Harbor for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Roche Harbor. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Roche Harbor. Data in table shown for September 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Roche Harbor

Roche Harbor weather forecast

Current temperature and weather

Data in a table show Roche Harbor temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Roche Harbor.

0-3 h	3-6 h	6-9 h	9-12 h
57.4°F	56.3°F	55.6°F	56.3°F

12-15 h	15-18 h	18-21 h	21-24 h
59.7°F	63.3°F	63.5°F	60.8°F

Roche Harbor water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Roche Harbor. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Roche Harbor on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Roche Harbor

The nearest beaches and cities from Roche Harbor with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Victoria	54°F	62.6°F		0' 11"
James Bay	54.1°F	62.6°F		0' 11"
Lummi Island	57.9°F	57.2°F		0' 4"
Point Roberts	62.1°F	64.4°F		0' 3"
Cowichan Bay	60.1°F	66.2°F		0' 1"
Birch Bay	61°F	75.2°F		0' 3"
Anacortes	57.2°F	55.4°F		0' 3"
Galiano Island	61.7°F	64.4°F		0' 1"
Marietta	62.2°F	75.2°F		0' 4"
Tsawwassen	64°F	64.4°F		0' 2"

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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.