September weather forecast
Jerteh, Malaysia

September, the first month of the autumn in Jerteh, is still a hot month, with an average temperature fluctuating between 24.1°C (75.4°F) and 30.9°C (87.6°F).

Temperature

September's weather displays an average high-temperature of a still tropical 30.9°C (87.6°F), slightly varied from August's 31.5°C (88.7°F). During September, the average low-temperature is recorded at a moderately hot 24.1°C (75.4°F).

Heat index

The heat index value for September is estimated at a blistering 41°C (105.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Jerteh, in September, during 27.8 rainfall days, 147mm (5.79") of precipitation is typically accumulated. In Jerteh, during the entire year, the rain falls for 302.3 days and collects up to 2074mm (81.65") of precipitation.

Daylight

The average length of the day in September is 12h and 9min.
On the first day of September, sunrise is at 7:03 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:02 pm +08.

Sunshine

The average sunshine in September in Jerteh is 8.5h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in Jerteh, Malaysia. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.