Measurements:
°C
°F
Nanaimo
56°F
W 4 mph
Feels like: 54°F
Precip: 32%
World Resorts Canada Nanaimo Weather

Nanaimo Sea Water Temperature

Current Sea Water Temperature:
+58.0°F
Maximum Sea Water Temperature in September: 70.4°F
Minimum Sea Water Temperature in September: 55.6°F
Average water temperature in September: 61.9°F

Sea Water Temperature for the Last 10 Days:

September 28 58.0°F September 23 60.8°F
September 27 58.8°F September 22 61.2°F
September 26 58.2°F September 21 59.8°F
September 25 58.6°F September 20 59.4°F
September 24 59.6°F September 19 60.6°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Nanaimo was 61.4°F. The maximum and minimum values were 58.0°F and 64.8°F respectively.

Best Time to Visit Nanaimo
The most sunny months:
July 21 days
August 18 days
September 13 days
The most warm months:
August 72.5 °F
July 72.0 °F
September 66.4 °F
Warmest sea temperature:
August 67.2 °F
July 66.6 °F
September 61.9 °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
F°
Halifax +56
Moncton +52
Montreal +52
Nanaimo +56
Niagara Falls +62
Ottawa +54
Prince Edward Island +54
Quebec +50
Saint Andrews +56
St. John's +40
Sydney +52
Toronto +68
Vancouver +54
Victoria +56
Winnipeg +52
24 Hours Weather Forecast
Nanaimo
Local time: 16:56
28 sep, monday
1800 56°F
W
4 mph
2100 54°F
NW
11 mph
29 sep, tuesday
0000 52°F
NW
10 mph
0300 56°F
N
9 mph
0600 56°F
E
1 mph
0900 58°F
E
1 mph
1200 62°F
SW
3 mph
1500 60°F
SW
6 mph