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
Weather in September
Temperature
The onset of September notes an average high-temperature of a still tropical 30.6°C (87.1°F), subtly shifted from August's 31.2°C (88.2°F). Throughout September, Banda Aceh registers a consistent average low-temperature of 24.5°C (76.1°F).Heat index
September's heat index is calculated to be a torrid 38°C (100.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In Banda Aceh, the average relative humidity in September is 75%.Rainfall
In Banda Aceh, in September, during 14.6 rainfall days, 65mm (2.56") of precipitation is typically accumulated. In Banda Aceh, Indonesia, during the entire year, the rain falls for 225.1 days and collects up to 1172mm (46.14") of precipitation.Snowfall
The only month with snowfall is September. 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 29.2°C (84.6°F).Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
In September, the average length of the day in Banda Aceh is 12h and 9min.On the first day of September in Banda Aceh, sunrise is at 06:32 and sunset at 18:45. On the last day of the month, 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
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 in Banda Aceh. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How hot does it get in Banda Aceh in September?
What is the average humidity in September in Banda Aceh?
How many days does it rain in September in Banda Aceh?
What is the snowiest month in Banda Aceh?
When does it start snowing in Banda Aceh?
How warm is the water in September in Banda Aceh?
What is the average length of the day in September in Banda Aceh?
When is the sunrise / sunset in September in Banda Aceh?
How long on average sun shines in September in Banda Aceh?
What is the month with the highest UV index in Banda Aceh?
What is the month with the lowest UV index in Banda Aceh?
What is the UV index reading in September in Banda Aceh?
Average temperature in September
Banda Aceh, Indonesia
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is June (31.3°C).
The month with the lowest average high temperature is December (28.9°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is May (25.4°C).
The coldest months (with the lowest average low temperature) are January and February (23.8°C).
Average pressure in September
Banda Aceh, Indonesia
- Average pressure in September: 1010.5mbar
The months with the highest atmospheric pressure are January and September (1010.5mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).
Average wind speed in September
Banda Aceh, Indonesia
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is July (11.2km/h).
The calmest month (with the lowest average wind speed) is April (6.7km/h).
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: 65mm
The wettest months (with the highest rainfall) are May and November (160mm).
The driest month (with the least rainfall) is June (46mm).
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: 29.2°C
The best month for swimming (with the highest average sea temperature) is April (30.1°C).
The coldest month (with the lowest average sea temperature) is January (28.5°C).
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: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are April and November (9km).
Banda Aceh, Indonesia
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