Measurements:
°C
°F
Nanaimo
44°F
NW 6 mph
Feels like: 40°F
Precip: 100%
World Resorts Canada Nanaimo Weather

Nanaimo Sea Water Temperature

Current Sea Water Temperature:
+45.6°F
Maximum Sea Water Temperature in January: 47.2°F
Minimum Sea Water Temperature in January: 42.0°F
Average water temperature in January: 44.4°F

Sea Water Temperature for the Last 10 Days:

January 10 45.6°F January 05 44.4°F
January 09 45.8°F January 04 44.2°F
January 08 45.6°F January 03 44.2°F
January 07 45.4°F January 02 44.4°F
January 06 45.4°F January 01 44.0°F

When is the Warmest Sea for Nanaimo?

According to our data for the last three years for Nanaimo the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Nanaimo was 66.3°F. The maximum and minimum values were 61.2°F and 69.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nanaimo was 66.5°F. The maximum and minimum values were 62.0°F and 71.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nanaimo was 63.1°F. The maximum and minimum values were 58.2°F and 67.6°F respectively.

Best Time to Visit Nanaimo
The most sunny months:
July 21 days
August 18 days
September 14 days
The most warm months:
August 71.4 °F
July 71.1 °F
September 66.3 °F
Warmest sea temperature:
August 67.4 °F
July 66.9 °F
September 62.0 °F
The most cold months:
February 40.0 °F
January 40.3 °F
December 40.8 °F
The most rainy months:
January 10 days
November 8 days
October 6 days
The most windy months:
January 6 mph
March 6 mph
December 6 mph

Nanaimo on the Weather Map

Canada Resorts:
NAME
Halifax +44
Kingston +32
Montreal +34
Niagara Falls +42
Ottawa +30
Prince Edward Island +36
Quebec +28
Saint John +42
St. John's +34
Sydney +38
Toronto +36
Vancouver +48
Victoria +48
Winnipeg +14
Yellowknife -8
24 Hours Weather Forecast
Nanaimo
Local time: 12:19
10 jan, saturday
1500 46°F
W
6 mph
1800 44°F
W
10 mph
2100 44°F
W
10 mph
11 jan, sunday
0000 42°F
W
9 mph
0300 42°F
W
7 mph
0600 42°F
NW
7 mph
0900 44°F
W
7 mph
1200 46°F
NW
4 mph