September weather forecast
Bubulak, Indonesia

The first month of the spring, September, is also a hot month in Bubulak, Indonesia, with an average temperature fluctuating between 25.8°C (78.4°F) and 30.4°C (86.7°F).

Temperature

Bubulak records a slight change with September's average high-temperatures adjusting to a still hot 30.4°C (86.7°F) from August's 30.1°C (86.2°F). September introduces a small decrease to a nighttime average of 25.8°C (78.4°F) in Bubulak.

Heat index

September's mean heat index is evaluated at a sweltering 36°C (96.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

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

Rainfall

In Bubulak, during September, the rain falls for 15.3 days and regularly aggregates up to 46mm (1.81") of precipitation. In Bubulak, during the entire year, the rain falls for 256.9 days and collects up to 1138mm (44.8") of precipitation.

Daylight

In Bubulak, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:53 and sunset at 17:52. On the last day of September, in Bubulak, sunrise is at 05:38 and sunset at 17:47 WIB.

Sunshine

The average sunshine in September is 9.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.