September weather forecastSaint John's, Montserrat
September
Weather in September
In Saint John's, September's weather maintains the high temperatures of the previous months, though without precise numerical detail. Daylight duration begins to contract, signifying the impending end of summer. Nevertheless, the rainfall remains sparse, providing ample clear skies. These weather conditions mark the month with a unique blend of summer and impending autumn. The warmth coupled with shorter days gives September distinct weather characteristics.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 29.3°C (84.7°F).Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.
Daylight
The average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 05:55 and sunset at 18:21. On the last day of the month, sunrise is at 05:58 and sunset at 17:58 AST.
Updated: Aug 19, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
September is the month with the warmest seawater, with an average sea temperature of 29.3°C (84.7°F).
In September, the average sea temperature is 29.3°C (84.7°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
The average day length in September is 12h and 13min.
In September, on the first day of the month, sunrise is at 05:55 and sunset at 18:21. On the last day of the month, sunrise is at 05:58 and sunset at 17:58 AST.
Average sea temperature in September
Saint John's, Montserrat
- Average sea temperature in September: 29.3°C
The best month for swimming (with the highest average sea temperature) is September (29.3°C).
The coldest month (with the lowest average sea temperature) is February (26.3°C).
Average daylight in September
Saint John's, Montserrat
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
