September weather forecast
Undaan Lor, Indonesia

September, the first month of the spring in Undaan Lor, is still a tropical month, with an average temperature varying between 33°C (91.4°F) and 23.8°C (74.8°F).

Temperature

The shift into September reveals an average high-temperature of a still tropical 33°C (91.4°F), closely mirroring August's climate. The temperature in Undaan Lor, Indonesia, lowers to an average of 23.8°C (74.8°F) during September nights.

Heat index

The heat index for September is appraised at a blisteringly hot 42°C (107.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance 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. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, in Undaan Lor, there are 239.6 rainfall days, and 1140mm (44.88") of precipitation is accumulated.

Daylight

In Undaan Lor, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:37 and sunset at 17:36. On the last day of September, sunrise is at 05:21 and sunset at 17:31 WIB.

Sunshine

The average sunshine in September in Undaan Lor is 9.7h.

UV index

The months with the highest UV index in Undaan Lor 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 in Undaan Lor. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 7 suggests this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.