West Bay Weather in September

What's the weather like in West Bay (Cayman Islands) in September 2021?

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

September is in the fall / autumn in West Bay and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 25°C (77°F) is normal.

West Bay weather averages (imperial / metric)
Daytime temperature 32°C 89.5°F
Nightly temperature 24.9°C 76.7°F
Average temperature 28.4°C 83.1°F
Daily sunshine 8 hrs
Avg rainfall 208 mm 8.2 ins
Rainy days 16 days
Sea temperature 29.6°C 85.3°F
Humidity 83%
Windspeed 13.3kph 8 mph

On average September is the 2nd wettest month of the year in West Bay with around 208mm 8.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in West Bay

West Bay average temperature in September

September rainfall

West Bay average rain in September

September hourly sunshine

West 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 West Bay in September 2021.

Other monthly averages

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West Bay weather stats

West Bay weather statistics
Hottest month: July 32°C 89.6°F
Driest month: March 32mm 1.3ins
Sunniest month: April 10.3hrs
Coldest month: January 28.5°C 83.3°F
Wettest month: October 234mm 9.2ins
Map showing location of West Bay (19.36667, -81.41667)

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