September weather forecast
Alma, Malaysia

September, the first month of the autumn in Alma, is also a hot month, with temperature in the range of an average low of 23.5°C (74.3°F) and an average high of 31.5°C (88.7°F).

Temperature

The onset of September brings an average high-temperature of a still tropical 31.5°C (88.7°F), nearly matching the August temperature. During September, Alma sees a mean low-temperature of 23.5°C (74.3°F).

Heat index

During September, the heat index is estimated at a scorching 42°C (107.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

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

Rainfall

In Alma, in September, during 25.6 rainfall days, 105mm (4.13") of precipitation is typically accumulated. In Alma, during the entire year, the rain falls for 294.8 days and collects up to 1325mm (52.17") of precipitation.

Daylight

In Alma, Malaysia, the average length of the day in September is 12h and 9min.
On the first day of September in Alma, 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 is 8.5h.

UV index

The months with the highest UV index in Alma are January through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.