September weather forecastSemanan, Indonesia

Weather in September

September, the first month of the spring in Semanan, is also a hot month, with temperature in the range of an average low of 25.6°C (78.1°F) and an average high of 30.4°C (86.7°F).

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a still tropical 30.4°C (86.7°F) from August's 30.1°C (86.2°F). Consistently, Semanan reports average nighttime temperatures of 25.6°C (78.1°F) during September, a marginal step down from its daytime highs.

Heat index

For September, the heat index is evaluated at a torrid 36°C (96.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In September, the average relative humidity is 70%.

Rainfall

In Semanan, in September, it is raining for 14.4 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, in Semanan, there are 256 rainfall days, and 1133mm (44.61") of precipitation is accumulated.

Daylight

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 17:53. On the last day of September, sunrise is at 05:38 and sunset at 17:47 WIB.

Sunshine

The average sunshine in September in Semanan, Indonesia, is 9.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Semanan. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health 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:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.