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 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
September
Weather in September
Temperature
Bethel records the warmest temperatures in September, averaging a high of 28.9°C (84°F) and a low of 27.8°C (82°F).Heat index
During September, the heat index is calculated to be a hot 34°C (93.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Bethel, during September, the rain falls for 23.2 days and regularly aggregates up to 87mm (3.43") of precipitation. In Bethel, during the entire year, the rain falls for 266.4 days and collects up to 724mm (28.5") of precipitation.Daylight
In Bethel, 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.
Sunshine
In Bethel, the average sunshine in September is 10.8h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Bethel?
How hot does it get in September?
What is the average humidity in September in Bethel?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Bethel have in September?
What are the months with the highest UV index?
What is the month with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Bethel, Montserrat
- 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 March (26.1°C).
- Average low temperature in September: 27.8°C
The month with the highest average low temperature is September (27.8°C).
The coldest month (with the lowest average low temperature) is February (24.9°C).
Average pressure in September
Bethel, Montserrat
- Average pressure in September: 1013.1mbar
The months with the highest atmospheric pressure are January and June (1016mbar).
The months with the lowest atmospheric pressure are October and November (1012.4mbar).
Average wind speed in September
Bethel, Montserrat
- Average wind speed in September: 20.5km/h
The windiest month (with the highest average wind speed) is July (27km/h).
The calmest month (with the lowest average wind speed) is October (19.8km/h).
Average humidity in September
Bethel, Montserrat
- Average humidity in September: 76%
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
Bethel, Montserrat
- Average rainfall in September: 87mm
The wettest month (with the highest rainfall) is October (101mm).
The driest months (with the least rainfall) are February and March (27mm).
Average rainfall days in September
Bethel, Montserrat
- Average rainfall days in September: 23.2 days
The month with the highest number of rainy days is December (24.4 days).
The month with the least rainy days is March (18.7 days).
Average daylight in September /
Average sunshine in September
Bethel, Montserrat
- 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 12min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Bethel, Montserrat
- Average sunshine days in September: 3.9 days
The month with the most sunshine days is March (5.9 days).
The month with the least sunshine days is July (1.8 days).
Average UV index in September
Bethel, Montserrat
- 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
Bethel, Montserrat
- Average cloud cover in September: 35
The months with the most cloud cover are June and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in September
Bethel, Montserrat
- 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).
