Measurements:
°C
°F
Nanaimo
58°F
SE 6 mph
Feels like: 58°F
Precip: 4%
World Resorts Canada Nanaimo Weather

Nanaimo Sea Water Temperature

Current Sea Water Temperature:
+65.4°F
Maximum Sea Water Temperature in June: 74.0°F
Minimum Sea Water Temperature in June: 54.4°F
Average water temperature in June: 60.9°F

Sea Water Temperature for the Last 10 Days:

June 17 65.4°F June 12 59.0°F
June 16 64.0°F June 11 59.2°F
June 15 62.8°F June 10 60.0°F
June 14 61.8°F June 09 60.8°F
June 13 60.0°F June 08 61.4°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:
December 40.8 °F
January 40.9 °F
February 40.9 °F
The most rainy months:
January 9 days
November 8 days
October 6 days
The most windy months:
March 6 mph
December 6 mph
November 6 mph

Nanaimo on the Weather Map

Canada Resorts:
NAME
Halifax +78
Kingston +62
Montreal +68
Ottawa +64
Prince Edward Island +70
Quebec +66
Saint John +70
Sydney +66
Thunder Bay +56
Tofino +56
Toronto +64
Vancouver +58
Victoria +54
Winnipeg +64
Yellowknife +62
24 Hours Weather Forecast
Nanaimo
Local time: 07:12
17 jun, wednesday
0900 66°F
SE
8 mph
1200 76°F
S
9 mph
1500 74°F
S
7 mph
1800 72°F
S
4 mph
2100 60°F
E
3 mph
18 jun, thursday
0000 54°F
E
7 mph
0300 50°F
E
8 mph
0600 54°F
SE
8 mph