September weather forecast
Semeling, Malaysia

The first month of the autumn, September, is still a hot month in Semeling, Malaysia, with temperature in the range of an average high of 31.9°C (89.4°F) and an average low of 23.5°C (74.3°F).

Temperature

September's onset sees an average high-temperature of a still hot 31.9°C (89.4°F), exhibiting a slight fluctuation from the previous month. Throughout the nights in September, an average low-temperature of 23.5°C (74.3°F) is noted.

Heat index

September's average heat index is estimated at a blisteringly hot 43°C (109.4°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Semeling, the average relative humidity in September is 78%.

Rainfall

In September, in Semeling, the rain falls for 20 days. Throughout September, 77mm (3.03") of precipitation is accumulated. Throughout the year, there are 245.7 rainfall days, and 1166mm (45.91") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 9min.
On the first day of September in Semeling, sunrise is at 7:11 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 7:10 pm +08.

Sunshine

The average sunshine in September in Semeling is 8.5h.

UV index

January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Semeling. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.