September weather forecastJulau, Malaysia
September
Weather in September
September, the first month of the autumn in Julau, is still a tropical month, with an average temperature varying between 33.2°C (91.8°F) and 22.3°C (72.1°F).Temperature
September reports an average high-temperature of a still tropical 33.2°C (91.8°F), slightly varied from August's 33.3°C (91.9°F). An average minimum temperature of 22.3°C (72.1°F) is recorded during the month of September.Heat index
The heat index value during September is computed to be a blazing hot 49°C (120.2°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In September, the average relative humidity in Julau is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 19.5 days and typically collects 66mm (2.6") of precipitation.Daylight
In Julau, the average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 6:27 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 6:25 pm +08.
Sunshine
The average sunshine in September is 8.1h.UV index
The months with the highest UV index are April, June through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Julau, Malaysia
- Average high temperature in September: 33.2°C
The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (30.4°C).
- Average low temperature in September: 22.3°C
The month with the highest average low temperature is May (22.8°C).
The coldest months (with the lowest average low temperature) are February and July (22°C).
Average pressure in September
Julau, Malaysia
- Average pressure in September: 1009.8mbar
The months with the highest atmospheric pressure are February and March (1010.1mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Julau, Malaysia
- Average wind speed in September: 3.3km/h
The windiest month (with the highest average wind speed) is January (3.6km/h).
The calmest month (with the lowest average wind speed) is May (3.1km/h).
Average humidity in September
Julau, Malaysia
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Julau, Malaysia
- Average rainfall in September: 66mm
The wettest month (with the highest rainfall) is December (181mm).
The driest month (with the least rainfall) is September (66mm).
Average rainfall days in September
Julau, Malaysia
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is March (25.4 days).
The month with the least rainy days is July (18.6 days).
Average daylight in September /
Average sunshine in September
Julau, 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 6min
The month with the most sunshine is August (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Julau, Malaysia
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is July (11.1 days).
The month with the least sunshine days is February (3.1 days).
Average UV index in September
Julau, Malaysia
- Average UV index in September: 7
The months with the highest UV index are April, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, May, October, November and December (UV index 6).
Average cloud cover in September
Julau, Malaysia
- Average cloud cover in September: 48
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 45).
Average visibility in September
Julau, Malaysia
- Average visibility in September: 8km
The months with the highest visibility are August and September (8km).
The months with the lowest visibility are January, February, March, April, November and December (6km).
