Measurements:
°C
°F
Nanaimo
60°F
N 2 mph
Feels like: 60°F
Precip: 3%
World Resorts Canada Nanaimo Weather

Nanaimo Sea Water Temperature

Current Sea Water Temperature:
+63.2°F
Maximum Sea Water Temperature in July: 74.8°F
Minimum Sea Water Temperature in July: 59.2°F
Average water temperature in July: 66.7°F

Sea Water Temperature for the Last 10 Days:

July 30 63.2°F July 25 68.8°F
July 29 64.4°F July 24 70.0°F
July 28 64.4°F July 23 67.8°F
July 27 65.0°F July 22 66.6°F
July 26 66.6°F July 21 65.6°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: 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: 2026 2025 2024

The average sea surface temperature in July 2026 for Nanaimo was 64.9°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:
July 72.0 °F
August 71.4 °F
September 66.3 °F
Warmest sea temperature:
August 67.4 °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

Canada Resorts:
NAME
Barrie +58
Halifax +64
Kingston +66
Montreal +66
Ottawa +66
Prince Edward Island +68
Quebec +62
Saint John +72
St. John's +56
Sydney +66
Toronto +62
Vancouver +58
Victoria +56
Winnipeg +72
Yellowknife +56
24 Hours Weather Forecast
Nanaimo
Local time: 04:26
30 jul, thursday
0600 56°F
N
1 mph
0900 70°F
W
2 mph
1200 70°F
W
7 mph
1500 70°F
W
7 mph
1800 70°F
W
4 mph
2100 58°F
N
1 mph
31 jul, friday
0000 56°F
NE
2 mph
0300 54°F
NE
2 mph