September weather forecastColo, Indonesia
September
Weather in September
September, the first month of the spring in Colo, is also a hot month, with an average temperature varying between 23.7°C (74.7°F) and 32.6°C (90.7°F).Temperature
Entering September, the average high-temperature is recorded at a still hot 32.6°C (90.7°F), exhibiting a minimal shift from August's 31.7°C (89.1°F). The average nighttime temperature lowers to a warm 23.7°C (74.7°F) throughout September.Heat index
The heat index in September is computed to be an extremely hot 41°C (105.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The least humid month is September, with an average relative humidity of 67%.Rainfall
In Colo, in September, during 10.6 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Colo, Indonesia, during the entire year, the rain falls for 238.8 days and collects up to 1049mm (41.3") of precipitation.Daylight
In September, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 05:36 and sunset at 17:35. On the last day of September, sunrise is at 05:21 and sunset at 17:31 WIB.
Sunshine
The months with the most sunshine are August and September, with an average of 9.7h of sunshine.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 7 transforms into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. 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
Colo, Indonesia
- Average high temperature in September: 32.6°C
The warmest month (with the highest average high temperature) is October (32.9°C).
The month with the lowest average high temperature is February (29.9°C).
- Average low temperature in September: 23.7°C
The month with the highest average low temperature is November (25°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in September
Colo, Indonesia
- Average pressure in September: 1011.1mbar
The months with the highest atmospheric pressure are August and September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Colo, Indonesia
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is April (6km/h).
Average humidity in September
Colo, Indonesia
- Average humidity in September: 67%
The months with the highest relative humidity are February and April (82%).
The month with the lowest relative humidity is September (67%).
Average rainfall in September
Colo, Indonesia
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is January (158mm).
The driest month (with the least rainfall) is August (20mm).
Average rainfall days in September
Colo, Indonesia
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is March (26.3 days).
The month with the least rainy days is August (10.4 days).
Average daylight in September /
Average sunshine in September
Colo, 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 and September (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days in September
Colo, Indonesia
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is February (3.4 days).
Average UV index in September
Colo, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Colo, Indonesia
- Average cloud cover in September: 25
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 25).
Average visibility in September
Colo, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
