September weather forecast
Wirun, Indonesia

The first month of the spring, September, is a tropical month in Wirun, Indonesia, with an average temperature ranging between min 21.1°C (70°F) and max 30.6°C (87.1°F).

Temperature

The advent of September denotes an average high-temperature of a tropical 30.6°C (87.1°F), subtly different from August's 29.5°C (85.1°F). Wirun experiences a nighttime temperature average of 21.1°C (70°F) during September.

Heat index

The average heat index in September is computed to be a sweltering 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The months with the lowest humidity in Wirun are September and October, with an average relative humidity of 74%.

Rainfall

In Wirun, in September, during 13.8 rainfall days, 48mm (1.89") of precipitation is typically accumulated. Throughout the year, there are 276.8 rainfall days, and 2048mm (80.63") of precipitation is accumulated.

Daylight

The average length of the day in September in Wirun is 12h and 4min.
On the first day of September in Wirun, sunrise is at 05:37 and sunset at 17:35. On the last day of the month, sunrise is at 05:21 and sunset at 17:31 WIB.

Sunshine

August and September, with an average of 9.2h of sunshine, are months with the most sunshine in Wirun.

UV index

September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.