Castries Weather in September

What's the weather like in Castries (Castries) in September 2022?

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

September is in the fall / autumn in Castries and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 24°C (75°F) is normal.

Castries weather averages (imperial / metric)
Daytime temperature 29.9°C 85.8°F
Nightly temperature 23.7°C 74.7°F
Average temperature 26.8°C 80.2°F
Daily sunshine 7.9 hrs
Avg rainfall 259 mm 10.2 ins
Rainy days 24 days
Sea temperature 29.1°C 84.4°F
Humidity 83%
Windspeed 11.9kph 7 mph

On average September is the 5th wettest month of the year in Castries with around 259mm 10.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.9 hours of sunshine per day.

September temperatures in Castries

Castries average temperature in September

September rainfall

Castries average rain in September

September hourly sunshine

Castries 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 Castries in September 2022.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Castries weather stats

Castries weather statistics
Hottest month: June 29.5°C 85.1°F
Driest month: March 99mm 3.9ins
Sunniest month: January 8.7hrs
Coldest month: January 27.6°C 81.7°F
Wettest month: October 303mm 11.9ins
Map showing location of Castries (13.9957, -61.00614)

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