September weather forecast
Lumut, Malaysia

September, the first month of the autumn in Lumut, is also a hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 30.5°C (86.9°F).

Temperature

With September's arrival, Lumut, Malaysia, notes an average high-temperature of a still hot 30.5°C (86.9°F), closely following the trend of the preceding month. During the month of September, Lumut identifies an average nighttime low-temperature of 25.9°C (78.6°F), slightly lower than its daytime counterpart.

Heat index

The heat index for September is estimated at a sweltering 37°C (98.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In September, the average relative humidity in Lumut is 73%.

Rainfall

In Lumut, during September, the rain falls for 24.1 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, in Lumut, there are 299.1 rainfall days, and 976mm (38.43") of precipitation is accumulated.

Sea temperature

In Lumut, the average seawater temperature in September is 29.5°C (85.1°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

The average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 7:11 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:09 pm +08.

Sunshine

In Lumut, the average sunshine in September is 9h.

UV index

The months with the highest UV index in Lumut 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. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection of sand and water increases the UV dose.