September weather forecastKleben, Indonesia
September
Weather in September
The first month of the spring, September, is a tropical month in Kleben, Indonesia, with an average temperature varying between 21.1°C (70°F) and 30.6°C (87.1°F).Temperature
The average high-temperature during September is a tropical 30.6°C (87.1°F), almost matching the conditions of the preceding month. Kleben usually reports an average low-temperature of 21.1°C (70°F) during the month of September.Heat index
For most parts of September, the heat index is calculated to be a very hot 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
With an average relative humidity of 74%, September is the least humid month.Rainfall
In September, in Kleben, the rain falls for 13.8 days. Throughout September, 48mm (1.89") of precipitation is accumulated. Throughout the year, there are 277.4 rainfall days, and 2063mm (81.22") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:37 and sunset at 17:35. On the last day of September, sunrise is at 05:21 and sunset at 17:31 WIB.
Sunshine
August and September, with an average of 9.2h of sunshine, are months with the most sunshine.UV index
September and October, 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 risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kleben, Indonesia
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is October (30.9°C).
The month with the lowest average high temperature is July (28.4°C).
- Average low temperature in September: 21.1°C
The months with the highest average low temperature are January, February and November (22.3°C).
The coldest month (with the lowest average low temperature) is August (20.3°C).
Average pressure in September
Kleben, Indonesia
- Average pressure in September: 1011.6mbar
The months with the highest atmospheric pressure are August and September (1011.6mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Kleben, Indonesia
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is September (9.7km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in September
Kleben, Indonesia
- Average humidity in September: 74%
The months with the highest relative humidity are January, February, March and April (85%).
The month with the lowest relative humidity is September (74%).
Average rainfall in September
Kleben, Indonesia
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is March (313mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Kleben, Indonesia
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is January (30.5 days).
The month with the least rainy days is August (8.9 days).
Average daylight in September /
Average sunshine in September
Kleben, 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 12min
The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in September
Kleben, Indonesia
- Average sunshine days in September: 13 days
The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (0.2 days).
Average UV index in September
Kleben, Indonesia
- Average UV index in September: 7
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
Average cloud cover in September
Kleben, Indonesia
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Kleben, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May, November and December (8km).
