September weather forecastWinongo, Indonesia
September
Weather in September
The first month of the spring, September, is also a hot month in Winongo, Indonesia, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 32.9°C (91.2°F).Temperature
Winongo's weather in September, with an average high-temperature of a still hot 32.9°C (91.2°F), subtly shifts from August's 31.3°C (88.3°F). During the nights in September, the temperature averages to a pleasant 22.1°C (71.8°F).Heat index
During September, the heat index is estimated at an extremely hot 42°C (107.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. 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. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
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 9 days. Throughout September, 23mm (0.91") of precipitation is accumulated. In Winongo, during the entire year, the rain falls for 223 days and collects up to 1083mm (42.64") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:34 and sunset at 17:32. On the last day of the month, sunrise is at 05:18 and sunset at 17:28 WIB.
Sunshine
The months with the most sunshine are August through October, with an average of 9.5h of sunshine.UV index
April, June 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 radiation for ordinary individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Winongo, Indonesia
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is November (24.1°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in September
Winongo, Indonesia
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is August (1011.6mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in September
Winongo, Indonesia
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is August (10km/h).
The calmest month (with the lowest average wind speed) is April (5km/h).
Average humidity in September
Winongo, Indonesia
- Average humidity in September: 67%
The month with the highest relative humidity is March (85%).
The months with the lowest relative humidity are September and October (67%).
Average rainfall in September
Winongo, Indonesia
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is March (194mm).
The driest month (with the least rainfall) is August (15mm).
Average rainfall days in September
Winongo, Indonesia
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is March (26.8 days).
The month with the least rainy days is August (7.3 days).
Average daylight in September /
Average sunshine in September
Winongo, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 30min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Winongo, Indonesia
- Average sunshine days in September: 17.1 days
The months with the most sunshine days are July and August (18.2 days).
The month with the least sunshine days is February (2 days).
Average UV index in September
Winongo, Indonesia
- Average UV index in September: 7
The months with the highest UV index are April, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March and May (UV index 6).
Average cloud cover in September
Winongo, Indonesia
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Winongo, Indonesia
- Average visibility in September: 10km
The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April, May and December (8km).





