September weather forecastNanaimo, Canada
September
Weather in September
The weather in Nanaimo undergoes a transition in September, with temperatures commencing a gradual fall. The residents bid farewell to the summer heat, welcoming the onset of Autumn. Despite the reduction in daylight hours, the city glows with autumn hues. A surplus in rainfall nurtures the city's flora, setting the tone for the fall season. The moderate weather is ideal for outdoor exploration.Temperature
As August transitions into September, Nanaimo sees a gentle drop in the average high-temperature, transitioning from a moderately hot 24.3°C (75.7°F) to an agreeable 20.9°C (69.6°F). In Nanaimo, the average nighttime temperature during September is a frosty 8.9°C (48°F).Humidity
In Nanaimo, the average relative humidity in September is 56.2%.Rainfall
In September, the rain falls for 8.2 days. Throughout September, 36mm (1.42") of precipitation is accumulated. Throughout the year, there are 170.1 rainfall days, and 1098mm (43.23") of precipitation is accumulated.Snowfall
In Nanaimo, snow does not fall in June through September.Sea temperature
In September, the average sea temperature is 11.4°C (52.5°F).Note: It is risky to swim in 11.4°C (52.5°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:57 pm. On the last day of September, in Nanaimo, sunrise is at 7:15 am and sunset at 6:55 pm PDT.
Sunshine
In September, the average sunshine is 7.1h.Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nanaimo, Canada
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is December (6.3°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is December (-0.2°C).
Average humidity in September
Nanaimo, Canada
- Average humidity in September: 56.2%
The month with the highest relative humidity is December (83.2%).
The month with the lowest relative humidity is August (52.1%).
Average rainfall in September
Nanaimo, Canada
- Average rainfall in September: 35.8mm
The wettest month (with the highest rainfall) is November (186.5mm).
The driest month (with the least rainfall) is July (25.4mm).
Average rainfall days in September
Nanaimo, Canada
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is November (19.8 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in September
Nanaimo, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (210mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Nanaimo, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.2 days).
The months with the least snowfall days are April, June, July, August and September (0 days).
Average sea temperature in September
Nanaimo, Canada
- Average sea temperature in September: 11.4°C
The best month for swimming (with the highest average sea temperature) is August (11.5°C).
The coldest month (with the lowest average sea temperature) is February (7.2°C).
Average daylight in September /
Average sunshine in September
Nanaimo, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
