September weather forecastMartubung, Indonesia
September weather forecast for Martubung, Indonesia: The average heat index, which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 42°C (107.6°F). The first month of the autumn, September, is still a hot month in Martubung, Indonesia, with an average temperature varying between 31.7°C (89.1°F) and 24.4°C (75.9°F).
September
Weather in September
The first month of the autumn, September, is still a hot month in Martubung, Indonesia, with an average temperature varying between 31.7°C (89.1°F) and 24.4°C (75.9°F).Temperature
The shift from August to September is characterized by an average high-temperature of a still tropical 31.7°C (89.1°F), not significantly different from the 31.8°C (89.2°F) of August. Nightly temperatures drop to an average low of 24.4°C (75.9°F) in September.Heat index
During September, the heat index is computed to be a blistering 42°C (107.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. 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 highly critical to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September is 77%.Rainfall
In Martubung, in September, it is raining for 28.4 days, with typically 117mm (4.61") of accumulated precipitation. Throughout the year, there are 305.3 rainfall days, and 1283mm (50.51") of precipitation is accumulated.Daylight
In Martubung, the average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 06:19 and sunset at 18:30. On the last day of the month, sunrise is at 06:12 and sunset at 18:17 WIB.
Sunshine
In September, the average sunshine is 8.8h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. 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 hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Martubung, Indonesia
- Average high temperature in September: 31.7°C
The warmest months (with the highest average high temperature) are May and June (32.5°C).
The month with the lowest average high temperature is December (30.2°C).
- Average low temperature in September: 24.4°C
The months with the highest average low temperature are April and May (25.1°C).
The coldest month (with the lowest average low temperature) is January (23.8°C).
Average pressure in September
Martubung, Indonesia
- Average pressure in September: 1010.6mbar
The months with the highest atmospheric pressure are January and February (1010.8mbar).
The month with the lowest atmospheric pressure is May (1009.5mbar).
Average wind speed in September
Martubung, Indonesia
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is February (7.1km/h).
The calmest months (with the lowest average wind speed) are May, September and October (6.1km/h).
Average humidity in September
Martubung, Indonesia
- Average humidity in September: 77%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
Martubung, Indonesia
- Average rainfall in September: 117mm
The wettest month (with the highest rainfall) is October (165mm).
The driest month (with the least rainfall) is February (57mm).
Average rainfall days in September
Martubung, Indonesia
- Average rainfall days in September: 28.4 days
The month with the highest number of rainy days is August (28.8 days).
The month with the least rainy days is February (18.7 days).
Average daylight in September /
Average sunshine in September
Martubung, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 48min
The months with the most sunshine are March and June (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 54min).
Average sunshine days in September
Martubung, Indonesia
- Average sunshine days in September: 0.9 days
The month with the most sunshine days is February (7.6 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in September
Martubung, 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
Martubung, Indonesia
- Average cloud cover in September: 38
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 30).
Average visibility in September
Martubung, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
