September weather forecast
Banda Aceh, Indonesia

englishespañol中文
Share

Weather in September

The first month of the autumn, September, is still a hot month in Banda Aceh, Indonesia, with an average temperature fluctuating between 24.5°C (76.1°F) and 30.6°C (87.1°F).

Temperature

The average high-temperature for September is a still tropical 30.6°C (87.1°F), closely aligning with the temperature of the preceding month. Banda Aceh records a steady low-temperature average of 24.5°C (76.1°F) during September.

Heat index

In September, the average heat index is appraised at a very hot 38°C (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 65mm (2.56") of accumulated precipitation. Throughout the year, there are 225.1 rainfall days, and 1172mm (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 29.2°C (84.6°F).
Note: Water temperature between 25°C (77°F) and 29°C (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.

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Banda Aceh, is 30.6°C (87.1°F), while the low-temperature averages to 24.5°C (76.1°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is appraised at 38°C (100.4°F).

What is the average humidity in September?

The average relative humidity in September is 75%.

How much does it rain in September?

In Banda Aceh, in September, during 14.6 rainfall days, 65mm (2.56") of precipitation is typically accumulated.

What is the snowiest month?

September has the most snowfall days of the year. Snow falls for 0.1 days.

When does it start snowing?

September is the first month it typically snows. Throughout September, there are 0.1 snowfall days.

How warm is the water in September?

In September, the average sea temperature in Banda Aceh is 29.2°C (84.6°F). 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.

What is the average length of the day in September?

In September, the average day length is 12h and 9min.

When is the sunrise / sunset in September?

On the first day of September, 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.

How many hours of sunshine does Banda Aceh have in September?

In September, the average sunshine duration is 8.8h.

When is the highest UV index?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Banda Aceh, Indonesia.

What are the months with the lowest UV index?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

How high is the UV index in September?

In Banda Aceh, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Banda Aceh, Indonesia

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location