September weather forecast
Bandarharjo, Indonesia

The first month of the spring, September, is also a hot month in Bandarharjo, Indonesia, with an average temperature fluctuating between 33.2°C (91.8°F) and 23.8°C (74.8°F).

Temperature

The transition into September notes an average high-temperature of a still hot 33.2°C (91.8°F), revealing a mild distinction from the 32.3°C (90.1°F) in August. Bandarharjo, in September, observes a steady average low-temperature of 23.8°C (74.8°F).

Heat index

For September, the heat index is appraised at a blistering 42°C (107.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled 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. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The least humid month in Bandarharjo is September, with an average relative humidity of 66%.

Rainfall

In Bandarharjo, in September, during 10.8 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, in Bandarharjo, Indonesia, there are 226.7 rainfall days, and 1000mm (39.37") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of September, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.

Sunshine

The average sunshine in September in Bandarharjo is 9.7h.

UV index

The months with the highest UV index in Bandarharjo, Indonesia, are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during September leads to these advisories:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.