September weather forecast
Sigelap, Indonesia

The first month of the spring, September, is still a hot month in Sigelap, Indonesia, with an average temperature fluctuating between 31.3°C (88.3°F) and 22.6°C (72.7°F).

Temperature

The ushering in of September brings an average high-temperature of a still tropical 31.3°C (88.3°F), closely mirroring the 30.5°C (86.9°F) of August. In Sigelap, the expected average low-temperature for September is an agreeable 22.6°C (72.7°F).

Heat index

September's heat index is evaluated at a fiery hot 38°C (100.4°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the lowest humidity in Sigelap are September and October, with an average relative humidity of 69%.

Rainfall

In Sigelap, Indonesia, during September, the rain falls for 9.5 days and regularly aggregates up to 18mm (0.71") of precipitation. In Sigelap, during the entire year, the rain falls for 222.3 days and collects up to 950mm (37.4") of precipitation.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of September in Sigelap, sunrise is at 05:46 and sunset at 17:46. On the last day of the month, sunrise is at 05:31 and sunset at 17:41 WIB.

Sunshine

The months with the most sunshine in Sigelap are August and September, with an average of 9.7h of sunshine.

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 in Sigelap 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 average person.
Note: An average UV index of 7 in September transforms into this advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.