September weather forecastRanduacir, Indonesia
September
Weather in September
September, the first month of the spring in Randuacir, is a tropical month, with temperature in the range of an average low of 21°C (69.8°F) and an average high of 30.4°C (86.7°F).Temperature
September notes an average high-temperature of a hot 30.4°C (86.7°F), subtly differing from August's 29.3°C (84.7°F). An average low-temperature of 21°C (69.8°F) is recorded during the nights in September.Heat index
In September, the heat index is estimated at a sweltering 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
The months with the lowest humidity in Randuacir are September and October, with an average relative humidity of 75%.Rainfall
In Randuacir, during September, the rain falls for 15.2 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, there are 289.6 rainfall days, and 2594mm (102.13") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:22 and sunset at 17:32 WIB.
Sunshine
The months with the most sunshine are August and September, with an average of 9.2h of sunshine.UV index
The month with the highest UV index in Randuacir is September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Randuacir, Indonesia
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is January (27.7°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is November (22.4°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).
Average pressure in September
Randuacir, Indonesia
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is September (1011.6mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Randuacir, Indonesia
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is September (7.1km/h).
The calmest month (with the lowest average wind speed) is April (4.6km/h).
Average humidity in September
Randuacir, Indonesia
- Average humidity in September: 75%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in September
Randuacir, Indonesia
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is February (379mm).
The driest month (with the least rainfall) is August (34mm).
Average rainfall days in September
Randuacir, Indonesia
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is January (30.4 days).
The month with the least rainy days is August (11.8 days).
Average daylight in September /
Average sunshine in September
Randuacir, 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 12min
The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Randuacir, Indonesia
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is August (14.8 days).
The months with the least sunshine days are January and March (0.2 days).
Average UV index in September
Randuacir, Indonesia
- Average UV index in September: 7
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in September
Randuacir, Indonesia
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in September
Randuacir, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May and November (8km).





