September weather forecastSenai, Malaysia
September
Weather in September
The first month of the autumn, September, is also a hot month in Senai, Malaysia, with an average temperature varying between 24.7°C (76.5°F) and 31.6°C (88.9°F).Temperature
With the onset of September, Senai's average high-temperature clocks in at a still hot 31.6°C (88.9°F), showing a minor fluctuation from the previous month. During the month of September, an average temperature of 24.7°C (76.5°F) is noted during the nights.Heat index
The heat index for September is computed to be a blisteringly hot 41°C (105.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The least humid month in Senai is September, with an average relative humidity of 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 20.1 days and typically collects 40mm (1.57") of precipitation.Daylight
In September, the average length of the day is 12h and 7min.On the first day of September, sunrise is at 7:01 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:58 pm +08.
Sunshine
With an average of 8.8h of sunshine, September has the most sunshine of the year in Senai, Malaysia.UV index
The months with the highest UV index 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 in Senai. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Senai, Malaysia
- Average high temperature in September: 31.6°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 (29.8°C).
- Average low temperature in September: 24.7°C
The month with the highest average low temperature is May (25.3°C).
The coldest month (with the lowest average low temperature) is February (23.7°C).
Average pressure in September
Senai, Malaysia
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is February (1010.3mbar).
The month with the lowest atmospheric pressure is May (1008.5mbar).
Average wind speed in September
Senai, Malaysia
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is January (8.5km/h).
The calmest months (with the lowest average wind speed) are April and May (5km/h).
Average humidity in September
Senai, Malaysia
- Average humidity in September: 75%
The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Senai, Malaysia
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (125mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in September
Senai, Malaysia
- Average rainfall days in September: 20.1 days
The months with the highest number of rainy days are April and December (25.3 days).
The month with the least rainy days is February (18.4 days).
Average daylight in September /
Average sunshine in September
Senai, 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 48min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Senai, Malaysia
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is February (7.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in September
Senai, 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, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Senai, 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
Senai, Malaysia
- Average visibility in September: 10km
The months with the highest visibility are February, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, March, April, November and December (9km).
