September weather forecast
Gemas, Malaysia

The first month of the autumn, September, is still a hot month in Gemas, Malaysia, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 23°C (73.4°F).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 32.5°C (90.5°F), from a not significantly different 32.8°C (91°F). Gemas's September nights cool down to an average low-temperature of 23°C (73.4°F).

Heat index

For September, the heat index is calculated to be an extremely hot 44°C (111.2°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 76%.

Rainfall

In Gemas, Malaysia, in September, during 15.2 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Gemas, during the entire year, the rain falls for 230.8 days and collects up to 884mm (34.8") of precipitation.

Daylight

In September, the average length of the day in Gemas is 12h and 8min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:14 pm. On the last day of September, in Gemas, sunrise is at 6:56 am and sunset at 7:02 pm +08.

Sunshine

The months with the most sunshine are July through September, with an average of 8.5h of sunshine.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.