September weather forecastTenau, Indonesia
September
Weather in September
September, the first month of the spring in Tenau, is also a moderately hot month, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 24.6°C (76.3°F).Temperature
The start of September sees the average high-temperature at a still warm 28.9°C (84°F), showing little difference from August's 28.1°C (82.6°F). Tenau documents a consistent average low-temperature of 24.6°C (76.3°F) at night during September.Heat index
During September, the heat index is estimated at a tropical 32°C (89.6°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 69%.Rainfall
In Tenau, in September, during 2.6 rainfall days, 5mm (0.2") of precipitation is typically accumulated. Throughout the year, in Tenau, there are 153.3 rainfall days, and 741mm (29.17") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 3min.On the first day of September, sunrise is at 05:48 and sunset at 17:43. On the last day of the month, sunrise is at 05:30 and sunset at 17:41 WITA.
Sunshine
In Tenau, the average sunshine in September is 9.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Tenau, Indonesia. The months with the lowest UV index in Tenau, Indonesia, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 7 during September leads to these advisories:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tenau, Indonesia
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is November (30.7°C).
The month with the lowest average high temperature is July (27.9°C).
- Average low temperature in September: 24.6°C
The month with the highest average low temperature is November (27.5°C).
The coldest month (with the lowest average low temperature) is August (23.8°C).
Average pressure in September
Tenau, Indonesia
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is August (1012.6mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).
Average wind speed in September
Tenau, Indonesia
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is June (21.3km/h).
The calmest month (with the lowest average wind speed) is November (10.4km/h).
Average humidity in September
Tenau, Indonesia
- Average humidity in September: 69%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in September
Tenau, Indonesia
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is January (172mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in September
Tenau, Indonesia
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is January (25.7 days).
The month with the least rainy days is August (1.2 days).
Average daylight in September /
Average sunshine in September
Tenau, Indonesia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is February (Average sunshine: 10h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 30min).
Average sunshine days in September
Tenau, Indonesia
- Average sunshine days in September: 27.1 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is January (2.1 days).
Average UV index in September
Tenau, Indonesia
- 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
Tenau, Indonesia
- Average cloud cover in September: 8
The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 8).
Average visibility in September
Tenau, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





