Nanaimo Weather in September

What's the weather like in Nanaimo (British Columbia) in September 2023?

The climate in Nanaimo during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Nanaimo and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 9°C (48°F) is normal.

Nanaimo weather averages (imperial / metric)
Daytime temperature 19.9°C 67.7°F
Nightly temperature 8.8°C 47.8°F
Average temperature 14.3°C 57.7°F
Daily sunshine 6.6 hrs
Avg rainfall 52 mm 2 ins
Rainy days 9 days
Sea temperature 13°C 55.3°F
Humidity 81%
Windspeed 12.6kph 8 mph

On average September is the 4th driest month of the year in Nanaimo with around 52mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.6 hours of sunshine per day.

September temperatures in Nanaimo

Nanaimo average temperature in September

September rainfall

Nanaimo average rain in September

September hourly sunshine

Nanaimo average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Nanaimo in September 2023.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Nanaimo weather stats

Nanaimo weather statistics
Hottest month: August 23.2°C 73.8°F
Driest month: July 28mm 1.1ins
Sunniest month: August 8.6hrs
Coldest month: January 5.2°C 41.4°F
Wettest month: December 213mm 8.4ins
Map showing location of Nanaimo (49.16634, -123.93601)

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