Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The warmest period in Falmouth is September, when temperatures fluctuate between an average high of 28.8°C (83.8°F) and a low of 27.7°C (81.9°F).Heat index
The heat index value for September is appraised at a hot 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
In September, the average relative humidity in Falmouth, Antigua and Barbuda, is 77%.Rainfall
In Falmouth, during September, the rain falls for 23.3 days and regularly aggregates up to 88mm (3.46") of precipitation. Throughout the year, there are 265.2 rainfall days, and 744mm (29.29") of precipitation is accumulated.Sea temperature
The month with the warmest seawater in Falmouth is September, with an average sea temperature of 29.3°C (84.7°F).Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.
Daylight
In Falmouth, the average length of the day in September is 12h and 14min.On the first day of September in Falmouth, sunrise is at 05:53 and sunset at 18:20. On the last day of the month, sunrise is at 05:57 and sunset at 17:56 AST.
Sunshine
April, August and September, with an average of 10.3h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 7 translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
Frequently asked questions
What are the warmest months in Falmouth?
How hot does it get in Falmouth in September?
What is the average humidity in September in Falmouth?
How many days does it rain in September in Falmouth?
When is the sea warmest in Falmouth?
What is the water temperature in September in Falmouth?
How many hours of daylight does Falmouth have in September?
When is the sunrise / sunset in September in Falmouth?
What is the month with the most sunshine in Falmouth?
How long on average sun shines in September in Falmouth?
What is the month with the highest UV index in Falmouth?
What are the months with the lowest UV index in Falmouth?
What is the UV index intensity in September in Falmouth?
Average temperature in September
Falmouth, Antigua and Barbuda
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is March (25.9°C).
- Average low temperature in September: 27.7°C
The month with the highest average low temperature is October (27.9°C).
The coldest months (with the lowest average low temperature) are February and March (25°C).
Average pressure in September
Falmouth, Antigua and Barbuda
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is June (1016.3mbar).
The months with the lowest atmospheric pressure are October and November (1012.6mbar).
Average wind speed in September
Falmouth, Antigua and Barbuda
- Average wind speed in September: 21.1km/h
The windiest month (with the highest average wind speed) is July (26.9km/h).
The calmest month (with the lowest average wind speed) is October (20.4km/h).
Average humidity in September
Falmouth, Antigua and Barbuda
- Average humidity in September: 77%
The months with the highest relative humidity are May, July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).
Average rainfall in September
Falmouth, Antigua and Barbuda
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Falmouth, Antigua and Barbuda
- Average rainfall days in September: 23.3 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is March (17.7 days).
Average sea temperature in September
Falmouth, Antigua and Barbuda
- 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 /
Average sunshine in September
Falmouth, 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: 10h and 2min
The months with the most sunshine are April, August and September (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Falmouth, Antigua and Barbuda
- Average sunshine days in September: 3.3 days
The month with the most sunshine days is March (9.1 days).
The month with the least sunshine days is July (0.6 days).
Average UV index in September
Falmouth, Antigua and Barbuda
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Falmouth, Antigua and Barbuda
- Average cloud cover in September: 38
The months with the most cloud cover are May, June and July (Cloud cover 43).
The month with the least cloud cover is February (Cloud cover 34).
Average visibility in September
Falmouth, Antigua and Barbuda
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Falmouth, Antigua and Barbuda
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