Measurements:
°C
°F
Nanaimo
80°F
SW 5 mph
Feels like: 80°F
Precip: 1%
World Resorts Canada Nanaimo Weather

Nanaimo Sea Water Temperature

Current Sea Water Temperature:
+62.4°F
Maximum Sea Water Temperature in September: 70.4°F
Minimum Sea Water Temperature in September: 55.6°F
Average water temperature in September: 62.0°F

Sea Water Temperature for the Last 10 Days:

September 08 62.4°F September 03 63.8°F
September 07 61.6°F September 02 64.8°F
September 06 62.2°F September 01 64.4°F
September 05 62.4°F August 31 64.0°F
September 04 62.8°F August 30 64.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Nanaimo was 66.0°F. The maximum and minimum values were 63.6°F and 68.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Nanaimo was 64.8°F. The maximum and minimum values were 60.0°F and 70.0°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 72.5 °F
July 72.0 °F
September 66.3 °F
Warmest sea temperature:
August 67.2 °F
July 66.6 °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

24 Hours Weather Forecast
Nanaimo
Local time: 14:32
08 sep, tuesday
1500 80°F
SW
5 mph
1800 80°F
W
1 mph
2100 66°F
E
3 mph
09 sep, wednesday
0000 58°F
E
3 mph
0300 56°F
E
3 mph
0600 54°F
E
3 mph
0900 60°F
SE
3 mph
1200 68°F
SW
4 mph