September weather forecastKisaran, Indonesia
September
Weather in September
The first month of the autumn, September, is still a tropical month in Kisaran, Indonesia, with an average temperature fluctuating between 31.4°C (88.5°F) and 23.9°C (75°F).Temperature
The arrival of September marks a slight shift to an average high-temperature of a still tropical 31.4°C (88.5°F) from August's 32.3°C (90.1°F). In Kisaran, the expected average low-temperature for September is a moderately hot 23.9°C (75°F).Heat index
The heat index in September is computed to be an extremely hot 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.The metrics for the heat index are tailored for both shady environments and light 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 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
In Kisaran, Indonesia, the average relative humidity in September is 80%.Rainfall
In Kisaran, in September, during 23.7 rainfall days, 94mm (3.7") of precipitation is typically accumulated. In Kisaran, during the entire year, the rain falls for 299.6 days and collects up to 1537mm (60.51") of precipitation.Daylight
In Kisaran, the average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 06:16 and sunset at 18:26. On the last day of the month, sunrise is at 06:08 and sunset at 18:14 WIB.
Sunshine
In Kisaran, the average sunshine in September is 8.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kisaran, Indonesia
- Average high temperature in September: 31.4°C
The warmest months (with the highest average high temperature) are June and August (32.3°C).
The month with the lowest average high temperature is December (30.1°C).
- Average low temperature in September: 23.9°C
The months with the highest average low temperature are April and May (24.6°C).
The coldest month (with the lowest average low temperature) is January (23.5°C).
Average pressure in September
Kisaran, Indonesia
- Average pressure in September: 1010.3mbar
The month with the highest atmospheric pressure is January (1010.6mbar).
The months with the lowest atmospheric pressure are May and June (1009.3mbar).
Average wind speed in September
Kisaran, Indonesia
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is February (6.4km/h).
The calmest months (with the lowest average wind speed) are May, September and October (5.6km/h).
Average humidity in September
Kisaran, Indonesia
- Average humidity in September: 80%
The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (78%).
Average rainfall in September
Kisaran, Indonesia
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is December (173mm).
The driest month (with the least rainfall) is July (82mm).
Average rainfall days in September
Kisaran, Indonesia
- Average rainfall days in September: 23.7 days
The month with the highest number of rainy days is December (28.7 days).
The month with the least rainy days is June (18.9 days).
Average daylight in September /
Average sunshine in September
Kisaran, 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: 12h and 0min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 8h and 54min).
The month with the least sunshine is November (Average sunshine: 7h and 18min).
Average sunshine days in September
Kisaran, Indonesia
- Average sunshine days in September: 5.6 days
The month with the most sunshine days is July (9.8 days).
The month with the least sunshine days is April (1.3 days).
Average UV index in September
Kisaran, 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
Kisaran, Indonesia
- Average cloud cover in September: 41
The month with the most cloud cover is November (Cloud cover 51).
The months with the least cloud cover are June and July (Cloud cover 35).
Average visibility in September
Kisaran, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
