Measurements:
°C
°F
CURRENT WEATHER
15:09
Nanaimo
80°F
SW 5 mph
Feels like: 80°F
Precip: 1%
World Resorts Canada Nanaimo Weather

7 Day Weather Forecast

09.08
tue
DAY
74°F
SW 5 mph
precip
3%
NIGHT
58°F
E 3 mph
precip
11%
09.09
wed
DAY
68°F
SW 4 mph
precip
14%
NIGHT
58°F
NE 2 mph
precip
12%
09.10
thu
DAY
58°F
NW 7 mph
precip
31%
NIGHT
58°F
S 2 mph
precip
19%
09.11
fri
DAY
58°F
SW 7 mph
precip
24%
NIGHT
56°F
SE 6 mph
precip
25%
09.12
sat
DAY
70°F
S 12 mph
precip
1%
NIGHT
58°F
SE 3 mph
precip
9%
09.13
sun
DAY
62°F
W 6 mph
precip
7%
NIGHT
54°F
E 5 mph
precip
12%
09.14
mon
DAY
62°F
SW 4 mph
precip
16%
NIGHT
54°F
E 3 mph
precip
20%

Nanaimo Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nanaimo was 16.6°F. The maximum and minimum values were 14.1°F and 18.8°F respectively.

Nanaimo on the Weather Map

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
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