Cruz Bay Weather in September

What's the weather like in Cruz Bay (Saint John Island) in September 2021?

The climate in Cruz Bay during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Cruz Bay and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (75°F) is normal.

Cruz Bay weather averages (imperial / metric)
Daytime temperature 30.6°C 87.1°F
Nightly temperature 24°C 75.2°F
Average temperature 27.3°C 81.1°F
Daily sunshine 8.2 hrs
Avg rainfall 143 mm 5.6 ins
Rainy days 19 days
Sea temperature 28.9°C 84.1°F
Humidity 77%
Windspeed 16.2kph 10 mph

On average September is the 3rd wettest month of the year in Cruz Bay with around 143mm 5.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

September temperatures in Cruz Bay

Cruz Bay average temperature in September

September rainfall

Cruz Bay average rain in September

September hourly sunshine

Cruz Bay 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 Cruz Bay in September 2021.

Other monthly averages

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Cruz Bay weather stats

Cruz Bay weather statistics
Hottest month: August 30.4°C 86.7°F
Driest month: February 54mm 2.1ins
Sunniest month: March 9.3hrs
Coldest month: January 27.5°C 81.5°F
Wettest month: October 161mm 6.3ins
Map showing location of Cruz Bay (18.33134, -64.79375)

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