September weather forecastKempas, Malaysia
September
Weather in September
September, the first month of the autumn in Kempas, is still a tropical month, with temperature in the range of an average high of 31.7°C (89.1°F) and an average low of 25°C (77°F).Temperature
Kempas registers an average high-temperature of a still hot 31.7°C (89.1°F) at the commencement of September, closely related to the preceding month. In the month of September, Kempas experiences an average low-temperature of 25°C (77°F).Heat index
Throughout September, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
With an average relative humidity of 73%, September is the least humid month.Rainfall
The month with the least rainfall is September, when the rain falls for 21.2 days and typically collects 51mm (2.01") of precipitation.Daylight
In Kempas, the average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:09 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:58 pm +08.
Sunshine
The month with the most sunshine is September, with an average of 8.9h of sunshine.UV index
January through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kempas, Malaysia
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is May (32.1°C).
The month with the lowest average high temperature is January (30°C).
- Average low temperature in September: 25°C
The month with the highest average low temperature is May (25.9°C).
The coldest months (with the lowest average low temperature) are January and February (24.2°C).
Average pressure in September
Kempas, Malaysia
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is February (1010.2mbar).
The month with the lowest atmospheric pressure is May (1008.5mbar).
Average wind speed in September
Kempas, Malaysia
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is January (9.7km/h).
The calmest month (with the lowest average wind speed) is April (5.8km/h).
Average humidity in September
Kempas, Malaysia
- Average humidity in September: 73%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is September (73%).
Average rainfall in September
Kempas, Malaysia
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is December (170mm).
The driest month (with the least rainfall) is September (51mm).
Average rainfall days in September
Kempas, Malaysia
- Average rainfall days in September: 21.2 days
The month with the highest number of rainy days is December (27.7 days).
The month with the least rainy days is February (20.3 days).
Average daylight in September /
Average sunshine in September
Kempas, Malaysia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is September (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Kempas, Malaysia
- Average sunshine days in September: 5.9 days
The months with the most sunshine days are January and February (6.3 days).
The month with the least sunshine days is November (1.9 days).
Average UV index in September
Kempas, Malaysia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Kempas, Malaysia
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Kempas, Malaysia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).
