Weather in September
Temperature
July through September, with an average high-temperature of 31°C (87.8°F), are marked as the warmest months.Rainfall
September is the month with the most rainfall in English Harbour. Rain falls for 16 days and accumulates 140mm (5.51") of precipitation.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 29°C (84.2°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 14min.On the first day of the month, sunrise is at 05:53 and sunset at 18:20. On the last day of September, sunrise is at 05:57 and sunset at 17:56 AST.
Sunshine
The months with the least sunshine are September through December, with an average of 7h of sunshine.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 12 suggests these recommendations:
Ensure all key precautions. Defense against sun exposure is critical. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Despite the clouds, sunscreen with an SPF of at least 30 should be used liberally and reapplied frequently, especially after a swim or outdoor workout. Attention! The combination of sand and water reflections enhances UV ray intensity.
Frequently asked questions
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How hot is it in English Harbour in September?
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What month is the sea warmest in English Harbour?
What is the water temperature in September in English Harbour?
What is the average length of the day in September in English Harbour?
When are sunrise and sunset in September in English Harbour?
What are the months with the least sunshine in English Harbour?
How long on average sun shines in September in English Harbour?
When is the highest UV index in English Harbour?
How high is the UV index in September in English Harbour?
Average temperature in September
English Harbour, Antigua and Barbuda
- Average high temperature in September: 31°C
The warmest months (with the highest average high temperature) are July, August and September (31°C).
The months with the lowest average high temperature are January and February (28°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are June, July, August and September (25°C).
The coldest months (with the lowest average low temperature) are January, February and March (22°C).
Average rainfall in September
English Harbour, Antigua and Barbuda
- Average rainfall in September: 140mm
The wettest month (with the highest rainfall) is September (140mm).
The driest month (with the least rainfall) is February (37mm).
Average rainfall days in September
English Harbour, Antigua and Barbuda
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is October (20 days).
The month with the least rainy days is June (12 days).
Average sea temperature in September
English Harbour, Antigua and Barbuda
- Average sea temperature in September: 29°C
The best month for swimming (with the highest average sea temperature) is September (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).
Average daylight in September /
Average sunshine in September
English Harbour, Antigua and Barbuda
- Average daylight in September: 12h and 1min
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).
- Average sunshine in September: 7h
The months with the most sunshine are January, February, March, April, May, June, July and August (Average sunshine: 8h).
The months with the least sunshine are September, October, November and December (Average sunshine: 7h).
Average UV index in September
English Harbour, Antigua and Barbuda
- Average UV index in September: 12
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The months with the lowest UV index are January and December (UV index 8).
English Harbour, Antigua and Barbuda
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