September weather forecastMount Pleasant, Bermuda
September
Weather in September
In September, Mount Pleasant starts seeing a fallback in temperatures as the transition from summer to autumn begins. Despite the decrease, the temperature remains comfortably warm and the relative humidity of 76% still keeps the atmosphere pleasantly tropical. Winds marginally pick up again, delivering gusts at 27.8km/h (17.3mph) while the rain also increases during these months. Despite these changes, the atmospheric pressure remains relatively stable ensuring predictability of the weather.Temperature
The beginning of September in Mount Pleasant, Bermuda, reveals an average high-temperature of a still warm 27°C (80.6°F), showing minimal deviation from the previous month. Throughout September, Mount Pleasant records a steady low-temperature average of 26.1°C (79°F), a minor decrease from its daytime counterpart.Heat index
In September, the average heat index is appraised at 29°C (84.2°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In September, the average relative humidity in Mount Pleasant is 76%.Rainfall
In September, in Mount Pleasant, the rain falls for 20.3 days. Throughout September, 89mm (3.5") of precipitation is accumulated. Throughout the year, there are 201.7 rainfall days, and 804mm (31.65") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Mount Pleasant, sunrise is at 06:54 and sunset at 19:43. On the last day of the month, sunrise is at 07:12 and sunset at 19:04 ADT.
Sunshine
The average sunshine in September is 9.4h.UV index
June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, an average UV index of 7 transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mount Pleasant, Bermuda
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is March (18.9°C).
- Average low temperature in September: 26.1°C
The month with the highest average low temperature is August (26.8°C).
The coldest month (with the lowest average low temperature) is March (16.9°C).
Average pressure in September
Mount Pleasant, Bermuda
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is October (1016.6mbar).
Average wind speed in September
Mount Pleasant, Bermuda
- Average wind speed in September: 19.6km/h
The windiest month (with the highest average wind speed) is February (29.4km/h).
The calmest month (with the lowest average wind speed) is August (17.2km/h).
Average humidity in September
Mount Pleasant, Bermuda
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are January, November and December (74%).
Average rainfall in September
Mount Pleasant, Bermuda
- Average rainfall in September: 89mm
The wettest month (with the highest rainfall) is August (93mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in September
Mount Pleasant, Bermuda
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is May (11.9 days).
Average daylight in September /
Average sunshine in September
Mount Pleasant, Bermuda
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Mount Pleasant, Bermuda
- Average sunshine days in September: 8 days
The month with the most sunshine days is May (16.6 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in September
Mount Pleasant, Bermuda
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in September
Mount Pleasant, Bermuda
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Mount Pleasant, Bermuda
- 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).
