September weather forecastSidosari, Indonesia
September
Weather in September
September, the first month of the spring in Sidosari, is still a warm month, with an average temperature ranging between min 19.1°C (66.4°F) and max 27.2°C (81°F).Temperature
The arrival of September brings an average high-temperature of a still moderately hot 27.2°C (81°F), closely following the temperature pattern of August. Nighttime temperature in Sidosari, Indonesia, experiences an average drop to a refreshing 19.1°C (66.4°F) in September.Heat index
For most parts of September, the heat index is evaluated at a tropical 31°C (87.8°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
The months with the lowest humidity in Sidosari are September and October, with an average relative humidity of 83%.Rainfall
In Sidosari, in September, it is raining for 22.7 days, with typically 108mm (4.25") of accumulated precipitation. Throughout the year, there are 322.7 rainfall days, and 3079mm (121.22") of precipitation is accumulated.Daylight
The average length of the day in September in Sidosari is 12h and 4min.On the first day of September in Sidosari, sunrise is at 05:40 and sunset at 17:38. On the last day of the month, sunrise is at 05:24 and sunset at 17:34 WIB.
Sunshine
In September, the average sunshine is 7.5h.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sidosari, Indonesia
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is October (27.8°C).
The month with the lowest average high temperature is July (25.9°C).
- Average low temperature in September: 19.1°C
The month with the highest average low temperature is November (21.1°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).
Average pressure in September
Sidosari, Indonesia
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is August (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Sidosari, Indonesia
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is September (7.2km/h).
The calmest month (with the lowest average wind speed) is April (4.4km/h).
Average humidity in September
Sidosari, Indonesia
- Average humidity in September: 83%
The month with the highest relative humidity is April (89%).
The months with the lowest relative humidity are September and October (83%).
Average rainfall in September
Sidosari, Indonesia
- Average rainfall in September: 108mm
The wettest month (with the highest rainfall) is March (404mm).
The driest month (with the least rainfall) is August (66mm).
Average rainfall days in September
Sidosari, Indonesia
- Average rainfall days in September: 22.7 days
The months with the highest number of rainy days are January and March (30.7 days).
The month with the least rainy days is August (21.1 days).
Average daylight in September /
Average sunshine in September
Sidosari, 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: 7h and 30min
The month with the most sunshine is August (Average sunshine: 7h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 0min).
Average sunshine days in September
Sidosari, Indonesia
- Average sunshine days in September: 4.8 days
The months with the most sunshine days are July, August and September (4.8 days).
The month with the least sunshine days is March (0 days).
Average UV index in September
Sidosari, Indonesia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 6).
The month with the lowest UV index is November (UV index 5).
Average cloud cover in September
Sidosari, Indonesia
- Average cloud cover in September: 53
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are June, August and September (Cloud cover 53).
Average visibility in September
Sidosari, Indonesia
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (7km).
The month with the lowest visibility is July (6km).





