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 snowfall 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
September
Weather in September
Temperature
The average high-temperature for September is a still tropical 87.1°F, closely aligning with the temperature of the preceding month. Banda Aceh records a steady low-temperature average of 76.1°F during September.Heat index
In September, the average heat index is appraised at a very hot 100.4°F. Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
In Banda Aceh, the average relative humidity in September is 75%.Rainfall
In Banda Aceh, in September, it is raining for 14.6 days, with typically 2.56" of accumulated precipitation. Throughout the year, there are 225.1 rainfall days, and 46.14" of precipitation is accumulated.Snowfall
September is the only month when snow falls. The month with the most snowfall days is September, when snow falls for 0.1 days.Sea temperature
In Banda Aceh, the average seawater temperature in September is 84.6°F.Note: Water temperature between 77°F and 84.2°F is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
In September, the average length of the day is 12h and 9min.On the first day of the month, sunrise is at 06:32 and sunset at 18:45. On the last day of September, sunrise is at 06:26 and sunset at 18:30 WIB.
Sunshine
In Banda Aceh, the average sunshine in September is 8.8h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
What is the snowiest month?
When does it start snowing?
How warm is the water 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 Banda Aceh have in September?
When is the highest UV index?
What are the months with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Banda Aceh, Indonesia
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is June (88.3°F).
The month with the lowest average high temperature is December (84°F).
- Average low temperature in September: 76.1°F
The month with the highest average low temperature is May (77.7°F).
The coldest months (with the lowest average low temperature) are January and February (74.8°F).
Average pressure in September
Banda Aceh, Indonesia
- Average pressure in September: 29.84"Hg
The months with the highest atmospheric pressure are January, February, March, September and October (29.84"Hg).
The months with the lowest atmospheric pressure are May and June (29.81"Hg).
Average wind speed in September
Banda Aceh, Indonesia
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is July (7mph).
The calmest month (with the lowest average wind speed) is April (4.2mph).
Average humidity in September
Banda Aceh, Indonesia
- Average humidity in September: 75%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Banda Aceh, Indonesia
- Average rainfall in September: 2.56"
The wettest months (with the highest rainfall) are May and November (6.3").
The driest month (with the least rainfall) is June (1.81").
Average rainfall days in September
Banda Aceh, Indonesia
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is November (24.9 days).
The month with the least rainy days is July (11.3 days).
Average snowfall days in September
Banda Aceh, Indonesia
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature in September
Banda Aceh, Indonesia
- Average sea temperature in September: 84.5°F
The best month for swimming (with the highest average sea temperature) is April (86.1°F).
The coldest month (with the lowest average sea temperature) is January (83.3°F).
Average daylight in September /
Average sunshine in September
Banda Aceh, Indonesia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
Banda Aceh, Indonesia
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is July (17.9 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in September
Banda Aceh, Indonesia
- 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
Banda Aceh, Indonesia
- Average cloud cover in September: 38
The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are February and June (Cloud cover 31).
Average visibility in September
Banda Aceh, Indonesia
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
