Water temperature in Chemainus

This data the coastal Chemainus sea 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 sea temperature in Chemainus

Water temperature in Chemainus today is 17.5°C. Based on our historical data over a period of ten years, the warmest water in this day in Chemainus was recorded in 2017 and was 18.3°C, and the coldest was recorded in 2008 at 14°C. Sea water temperature in Chemainus is expected to drop to 15.1°C in the next 10 days. September average water temperature in Chemainus is 15°C, the minimum temperature is 11.9°C, and the maximum is 19.6°C.

Throughout the year, the water temperature in Chemainus does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of July, the water temperature warms up to 20°C and above. The average water temperature in Chemainus in winter reaches 7.2°C, in spring 9.8°C, in summer the average temperature rises to 16.5°C, and in autumn it is 12°C.

Chemainus water temperature now

The sea salinity in Chemainus is 26.72‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Chemainus 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 Chemainus. 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 Chemainus. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Chemainus

Chemainus weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
20.8°C	19.8°C	19.2°C	20.2°C

12-15 h	15-18 h	18-21 h	21-24 h
22.5°C	24°C	23.7°C	22°C

Chemainus water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Chemainus. 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 Chemainus 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 Chemainus

The nearest beaches and cities from Chemainus 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
Vancouver	20.1°C	22°C		0.03 m
Brentwood Bay	14.2°C	19°C		0.04 m
Pender Island	13.8°C	19°C		0.05 m
Richmond	18.9°C	20°C		0.04 m
Sidney	13.4°C	19°C		0.03 m
Wreck Beach	20.3°C	24°C		0.03 m
Tsawwassen	17.8°C	18°C		0.05 m
Second Beach	20.4°C	24°C		0.02 m
Deep Cove	20.4°C	24°C		0.02 m
English Bay	20.4°C	24°C		0.02 m

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Our report for Chemainus 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.