Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September begins with an average high-temperature of a still tropical 31.7°C (89.1°F), reflecting close similarity to the preceding month. During September, Rantau observes a consistent average nighttime temperature of 23.7°C (74.7°F).Heat index
September's heat index is computed to be an extremely hot 41°C (105.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 75%.Rainfall
September is the month with the least rainfall. Rain falls for 16.5 days and accumulates 36mm (1.42") of precipitation.Daylight
In September, the average length of the day is 12h and 8min.On the first day of September, sunrise is at 7:07 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:04 pm +08.
Sunshine
The months with the most sunshine are July through September, with an average of 8.8h of sunshine.UV index
The months with the highest UV index are January through September, November and 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 ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Rantau?
What are the least humid months?
What is the average humidity in September in Rantau?
What is the driest month?
How many days does it rain in September?
What is the average length of the day in September in Rantau?
When are sunrise and sunset in September?
What are the months with the most sunshine?
How long on average sun shines in September in Rantau?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Rantau, Malaysia
- Average high temperature in September: 31.7°C
The warmest months (with the highest average high temperature) are March, April and May (32.3°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in September: 23.7°C
The month with the highest average low temperature is May (24.4°C).
The coldest months (with the lowest average low temperature) are January and February (22.8°C).
Average pressure in September
Rantau, Malaysia
- Average pressure in September: 1009.6mbar
The months with the highest atmospheric pressure are January and February (1010.3mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in September
Rantau, Malaysia
- Average wind speed in September: 5.3km/h
The windiest month (with the highest average wind speed) is February (6.2km/h).
The calmest months (with the lowest average wind speed) are April and November (4.7km/h).
Average humidity in September
Rantau, Malaysia
- Average humidity in September: 75%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in September
Rantau, Malaysia
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (122mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in September
Rantau, Malaysia
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is March (25.6 days).
The month with the least rainy days is September (16.5 days).
Average daylight in September /
Average sunshine in September
Rantau, Malaysia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July, August and September (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in September
Rantau, Malaysia
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is August (12.6 days).
The month with the least sunshine days is March (4.7 days).
Average UV index in September
Rantau, Malaysia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in September
Rantau, Malaysia
- Average cloud cover in September: 36
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Rantau, Malaysia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
