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
September is the warmest month in Castle Bruce, with an average high-temperature of 28.9°C (84°F) and an average low-temperature of 27.6°C (81.7°F).Heat index
In September, the heat index is calculated to be a tropical 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity in Castle Bruce is 76%.Rainfall
In Castle Bruce, during September, the rain falls for 21.5 days and regularly aggregates up to 92mm (3.62") of precipitation. In Castle Bruce, during the entire year, the rain falls for 249.5 days and collects up to 786mm (30.94") of precipitation.Sea temperature
The month with the warmest seawater in Castle Bruce is September, with an average sea temperature of 29.4°C (84.9°F).Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
In Castle Bruce, Dominica, the average length of the day in September is 12h and 13min.On the first day of September in Castle Bruce, sunrise is at 05:52 and sunset at 18:17. On the last day of the month, sunrise is at 05:54 and sunset at 17:54 AST.
Sunshine
April, August and September, with an average of 10.1h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Castle Bruce 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 health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 7 during September leads to these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be attentive! The UV exposure is heightened with reflections from sand and water.
Frequently asked questions
What part of the year is the hottest in Castle Bruce?
How hot does it get in Castle Bruce in September?
What is the average humidity in September in Castle Bruce?
How many days does it rain in September in Castle Bruce?
What is the month with the warmest sea water in Castle Bruce?
How warm is the water in September in Castle Bruce?
How many hours of daylight does Castle Bruce have in September?
When is the sunrise / sunset in September in Castle Bruce?
What is the month with the most sunshine in Castle Bruce?
How many hours of sunshine does Castle Bruce have in September?
What is the month with the highest UV index in Castle Bruce?
What is the month with the lowest UV index in Castle Bruce?
How high is the UV index in September in Castle Bruce?
Average temperature in September
Castle Bruce, Dominica
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is September (28.9°C).
The month with the lowest average high temperature is February (26.3°C).
- Average low temperature in September: 27.6°C
The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (24.9°C).
Average pressure in September
Castle Bruce, Dominica
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is June (1015.8mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Castle Bruce, Dominica
- Average wind speed in September: 20.1km/h
The windiest month (with the highest average wind speed) is January (26.6km/h).
The calmest month (with the lowest average wind speed) is October (19.9km/h).
Average humidity in September
Castle Bruce, Dominica
- Average humidity in September: 76%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).
Average rainfall in September
Castle Bruce, Dominica
- Average rainfall in September: 92mm
The wettest month (with the highest rainfall) is August (99mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Castle Bruce, Dominica
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is October (23.1 days).
The month with the least rainy days is March (16.6 days).
Average sea temperature in September
Castle Bruce, Dominica
- Average sea temperature in September: 29.4°C
The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in September /
Average sunshine in September
Castle Bruce, Dominica
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are April, August and September (Average sunshine: 10h and 6min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Castle Bruce, Dominica
- Average sunshine days in September: 5.7 days
The month with the most sunshine days is March (8.1 days).
The months with the least sunshine days are May, June and August (3.8 days).
Average UV index in September
Castle Bruce, Dominica
- 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
Castle Bruce, Dominica
- Average cloud cover in September: 38
The months with the most cloud cover are June and July (Cloud cover 47).
The month with the least cloud cover is February (Cloud cover 34).
Average visibility in September
Castle Bruce, Dominica
- 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).
Castle Bruce, Dominica
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