September weather forecastRengas, Indonesia
September weather forecast for Rengas, Indonesia: In September, the average heat index, which takes the relative humidity and factors it into the air temperature reading, is appraised at 39°C (102.2°F). September, the first month of the spring in Rengas, is still a tropical month, with an average temperature varying between 25.1°C (77.2°F) and 31.9°C (89.4°F).
September
Weather in September
September, the first month of the spring in Rengas, is still a tropical month, with an average temperature varying between 25.1°C (77.2°F) and 31.9°C (89.4°F).Temperature
The commencement of September introduces an average high-temperature of a still hot 31.9°C (89.4°F), closely mirroring the preceding month. In September, Rengas records an average nighttime temperature of 25.1°C (77.2°F).Heat index
In September, the heat index is appraised at a fiery hot 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 67%.Rainfall
In September, the rain falls for 14 days. Throughout September, 47mm (1.85") of precipitation is accumulated. In Rengas, during the entire year, the rain falls for 270.6 days and collects up to 1523mm (59.96") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:53 and sunset at 17:52. On the last day of the month, sunrise is at 05:38 and sunset at 17:47 WIB.
Sunshine
In Rengas, the average sunshine in September is 9.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rengas, Indonesia
- Average high temperature in September: 31.9°C
The warmest month (with the highest average high temperature) is October (32°C).
The month with the lowest average high temperature is February (29.6°C).
- Average low temperature in September: 25.1°C
The month with the highest average low temperature is November (26.4°C).
The coldest months (with the lowest average low temperature) are July and August (24.3°C).
Average pressure in September
Rengas, Indonesia
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Rengas, Indonesia
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).
Average humidity in September
Rengas, Indonesia
- Average humidity in September: 67%
The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are September and October (67%).
Average rainfall in September
Rengas, Indonesia
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is March (215mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in September
Rengas, Indonesia
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is March (29.2 days).
The month with the least rainy days is August (11.3 days).
Average daylight in September /
Average sunshine in September
Rengas, 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 48min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).
Average sunshine days in September
Rengas, Indonesia
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is February (0.7 days).
Average UV index in September
Rengas, 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
Rengas, Indonesia
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Rengas, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March and April (9km).
