September weather forecast
Kisaran, Indonesia

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.