September weather forecastKumai, Indonesia
September
Weather in September
September, the first month of the spring in Kumai, is still a hot month, with temperature in the range of an average high of 33.6°C (92.5°F) and an average low of 22.7°C (72.9°F).Temperature
As August transitions into September, Kumai records an average high-temperature of a still tropical 33.6°C (92.5°F), showing a gentle shift from the preceding month. Kumai experiences a mean temperature of 22.7°C (72.9°F) during September nights.Heat index
The heat index value during September is evaluated at a burning hot 47°C (116.6°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
With an average relative humidity of 74%, September is the least humid month.Rainfall
September is the month with the least rainfall. Rain falls for 16.7 days and accumulates 48mm (1.89") of precipitation.Daylight
In September, the average length of the day is 12h and 6min.On the first day of the month, sunrise is at 05:31 and sunset at 17:34. On the last day of September, sunrise is at 05:19 and sunset at 17:27 WIB.
Sunshine
The month with the most sunshine is September, with an average of 8.5h of sunshine.UV index
The months with the highest UV index are January, February, April through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 7 during September translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kumai, Indonesia
- Average high temperature in September: 33.6°C
The warmest month (with the highest average high temperature) is October (33.8°C).
The month with the lowest average high temperature is July (32°C).
- Average low temperature in September: 22.7°C
The months with the highest average low temperature are October and December (23.9°C).
The coldest month (with the lowest average low temperature) is July (22.4°C).
Average pressure in September
Kumai, Indonesia
- Average pressure in September: 1010.2mbar
The month with the highest atmospheric pressure is September (1010.2mbar).
The months with the lowest atmospheric pressure are November and December (1008.8mbar).
Average wind speed in September
Kumai, Indonesia
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is September (5.6km/h).
The calmest months (with the lowest average wind speed) are March and April (3.7km/h).
Average humidity in September
Kumai, Indonesia
- Average humidity in September: 74%
The month with the highest relative humidity is April (84%).
The month with the lowest relative humidity is September (74%).
Average rainfall in September
Kumai, Indonesia
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is November (158mm).
The driest month (with the least rainfall) is September (48mm).
Average rainfall days in September
Kumai, Indonesia
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is November (25.9 days).
The month with the least rainy days is September (16.7 days).
Average daylight in September /
Average sunshine in September
Kumai, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is September (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Kumai, Indonesia
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is September (11.5 days).
The month with the least sunshine days is November (3.1 days).
Average UV index in September
Kumai, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are March and December (UV index 6).
Average cloud cover in September
Kumai, Indonesia
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in September
Kumai, Indonesia
- Average visibility in September: 8km
The month with the highest visibility is October (9km).
The months with the lowest visibility are March, April, May, June and July (7km).
