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.
|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|
|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.
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.
|Hottest month:||August||30.4°C 86.7°F|
|Driest month:||February||54mm 2.1ins|
|Coldest month:||January||27.5°C 81.5°F|
|Wettest month:||October||161mm 6.3ins|