September weather forecastMeru, Malaysia
September
Weather in September
September, the first month of the autumn in Meru, is still a hot month, with an average temperature ranging between min 24°C (75.2°F) and max 32.9°C (91.2°F).Temperature
Welcoming September, Meru notes an average high-temperature of a still tropical 32.9°C (91.2°F), nearly consistent with August's 33°C (91.4°F). Meru experiences an average nighttime temperature of 24°C (75.2°F) in the month of September.Heat index
The heat index value for September is estimated at an extremely hot 44°C (111.2°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.Evaluating the heat index requires understanding its values in the shade and with gentle winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. 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. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
The months with the lowest humidity in Meru are August and September, with an average relative humidity of 71%.Rainfall
The month with the least rainfall in Meru is September, when the rain falls for 14.4 days and typically collects 28mm (1.1") of precipitation.Daylight
In Meru, the average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:19 pm. On the last day of September, sunrise is at 7:01 am and sunset at 7:06 pm +08.
Sunshine
In September, the average sunshine is 8.7h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, 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 average person.Note: An average UV index of 7 in September transforms into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Meru, Malaysia
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is August (33°C).
The month with the lowest average high temperature is December (31.1°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is May (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (23.4°C).
Average pressure in September
Meru, Malaysia
- Average pressure in September: 1009.7mbar
The months with the highest atmospheric pressure are January and February (1010.4mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in September
Meru, Malaysia
- Average wind speed in September: 5.5km/h
The windiest months (with the highest average wind speed) are July and August (5.7km/h).
The calmest month (with the lowest average wind speed) is December (4.6km/h).
Average humidity in September
Meru, Malaysia
- Average humidity in September: 71%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in September
Meru, Malaysia
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (120mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Meru, Malaysia
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is March (22.5 days).
The month with the least rainy days is September (14.4 days).
Average daylight in September /
Average sunshine in September
Meru, Malaysia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The months with the least sunshine are November and December (Average sunshine: 7h and 36min).
Average sunshine days in September
Meru, Malaysia
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is June (12.4 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in September
Meru, 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
Meru, Malaysia
- Average cloud cover in September: 37
The month with the most cloud cover is November (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Meru, Malaysia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
