September weather forecastKetereh, Malaysia

Weather in September

The first month of the autumn, September, is also a hot month in Ketereh, Malaysia, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 32.6°C (90.7°F).

Temperature

Ketereh in September witnesses an average high-temperature of a still tropical 32.6°C (90.7°F), indicating a slight variation from August's 33.5°C (92.3°F). Ketereh's temperature in September lowers to a consistent average of 23.8°C (74.8°F) during the nights.

Heat index

In September, the heat index is calculated to be a life-threatening hot 46°C (114.8°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Ketereh, Malaysia, the average relative humidity in September is 79%.

Rainfall

In Ketereh, in September, during 27.5 rainfall days, 123mm (4.84") of precipitation is typically accumulated. Throughout the year, in Ketereh, there are 275.1 rainfall days, and 1649mm (64.92") of precipitation is accumulated.

Daylight

In September, the average length of the day in Ketereh, Malaysia, is 12h and 9min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:58 am and sunset at 7:03 pm +08.

Sunshine

In September, the average sunshine in Ketereh is 8.5h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.