September weather forecastWonocolo, Indonesia
September
Weather in September
The first month of the spring, September, is still a tropical month in Wonocolo, Indonesia, with an average temperature varying between 34°C (93.2°F) and 22.9°C (73.2°F).Temperature
An average high-temperature of a still hot 34°C (93.2°F) marks September, exhibiting a close resemblance to the conditions in August. Throughout September nights, Wonocolo registers an average low-temperature of 22.9°C (73.2°F).Heat index
During September, the heat index is calculated to be a blisteringly hot 44°C (111.2°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. 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. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
With an average relative humidity of 64%, September is the least humid month.Rainfall
In Wonocolo, in September, it is raining for 8.3 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 238.8 rainfall days, and 1330mm (52.36") 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 05:29 and sunset at 17:28. On the last day of the month, sunrise is at 05:13 and sunset at 17:23 WIB.
Sunshine
August and September, with an average of 9.6h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 7 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wonocolo, Indonesia
- Average high temperature in September: 34°C
The warmest month (with the highest average high temperature) is October (34.2°C).
The month with the lowest average high temperature is January (29.9°C).
- Average low temperature in September: 22.9°C
The month with the highest average low temperature is November (24.5°C).
The coldest month (with the lowest average low temperature) is July (21.9°C).
Average pressure in September
Wonocolo, Indonesia
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Wonocolo, Indonesia
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is August (8.2km/h).
The calmest month (with the lowest average wind speed) is April (5.1km/h).
Average humidity in September
Wonocolo, Indonesia
- Average humidity in September: 64%
The months with the highest relative humidity are February and March (86%).
The month with the lowest relative humidity is September (64%).
Average rainfall in September
Wonocolo, Indonesia
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is March (221mm).
The driest month (with the least rainfall) is August (15mm).
Average rainfall days in September
Wonocolo, Indonesia
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is March (28.5 days).
The month with the least rainy days is August (7.6 days).
Average daylight in September /
Average sunshine in September
Wonocolo, 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 36min
The months with the most sunshine are August and September (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Wonocolo, Indonesia
- Average sunshine days in September: 20 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (1.7 days).
Average UV index in September
Wonocolo, 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
Wonocolo, Indonesia
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 25).
Average visibility in September
Wonocolo, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March, April and December (8km).





