September weather forecastSememi, Indonesia
September
Weather in September
September, the first month of the spring in Sememi, is still a tropical month, with an average temperature ranging between max 33.6°C (92.5°F) and min 22.4°C (72.3°F).Temperature
A minor adjustment in Sememi's average high-temperature is noted with the start of September, touching a still tropical 33.6°C (92.5°F) from August's 32.3°C (90.1°F). The average low-temperature during September nights is an agreeable 22.4°C (72.3°F).Heat index
Throughout September, the heat index is appraised at a scorching 42°C (107.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
September and October, with an average relative humidity of 62%, are the least humid months.Rainfall
In Sememi, in September, it is raining for 5.2 days, with typically 12mm (0.47") of accumulated precipitation. In Sememi, during the entire year, the rain falls for 218.1 days and collects up to 1410mm (55.51") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of September in Sememi, sunrise is at 05:30 and sunset at 17:28. On the last day of the month, sunrise is at 05:14 and sunset at 17:24 WIB.
Sunshine
August through October, with an average of 9.7h of sunshine, are months with the most sunshine.UV index
February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 during September leads to these advisories:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sememi, Indonesia
- Average high temperature in September: 33.6°C
The warmest month (with the highest average high temperature) is October (34.6°C).
The month with the lowest average high temperature is February (30.1°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is November (24.9°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).
Average pressure in September
Sememi, Indonesia
- Average pressure in September: 1011.4mbar
The months with the highest atmospheric pressure are August and September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Sememi, Indonesia
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Sememi, Indonesia
- Average humidity in September: 62%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).
Average rainfall in September
Sememi, Indonesia
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in September
Sememi, Indonesia
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).
Average daylight in September /
Average sunshine in September
Sememi, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 42min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Sememi, Indonesia
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).
Average UV index in September
Sememi, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January and March (UV index 6).
Average cloud cover in September
Sememi, Indonesia
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in September
Sememi, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).
