September weather forecast
Arau, Malaysia

The first month of the autumn, September, is also a hot month in Arau, Malaysia, with an average temperature varying between 25.2°C (77.4°F) and 30.3°C (86.5°F).

Temperature

Arau, Malaysia, notes an average high-temperature of a still tropical 30.3°C (86.5°F) in September, displaying minor variation from August. Throughout September, Arau anticipates an average low-temperature of 25.2°C (77.4°F).

Heat index

The heat index in September is appraised at a very hot 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Arau, the average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 23.5 days. Throughout September, 117mm (4.61") of precipitation is accumulated. Throughout the year, in Arau, there are 258.5 rainfall days, and 1368mm (53.86") of precipitation is accumulated.

Daylight

The average length of the day in September in Arau is 12h and 10min.
On the first day of the month, sunrise is at 7:11 am and sunset at 7:25 pm. On the last day of September, sunrise is at 7:06 am and sunset at 7:10 pm +08.

Sunshine

In Arau, the average sunshine in September is 8.3h.

UV index

The months with the highest UV index in Arau, Malaysia, 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 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:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.