Hamilton Weather in September

What's the weather like in Hamilton, Canada in September 2018?

The climate in Hamilton during September can be summarized as mild and a little damp.

September is in the fall / autumn in Hamilton and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 11°C (52°F) is normal.

Hamilton weather averages (imperial / metric)
Daytime temperature 21.1°C 69.9°F
Nightly temperature 11.4°C 52.4°F
Average temperature 16.2°C 61.2°F
Daily sunshine 6.1 hrs
Avg rainfall 85 mm 3.3 ins
Rainy days 10 days
Sea temperature 19.1°C 66.4°F
Humidity 77%
Windspeed 11.2kph 7 mph

On average September is the 2nd wettest month of the year in Hamilton with around 85mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

September temperatures in Hamilton

September rainfall

September hourly sunshine

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 September 2018.

Other monthly averages

Hamilton weather stats

Hamilton weather statistics
Hottest month: July 26.6°C 79.9°F
Driest month: February 55mm 2.2ins
Sunniest month: July 9.9hrs
Coldest month: January -2.2°C 28°F
Wettest month: August 91mm 3.6ins
Map showing location of Hamilton (43.23341, -79.94964)

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