September weather forecastKluwut, Indonesia
September
Weather in September
The first month of the spring, September, is still a hot month in Kluwut, Indonesia, with an average temperature varying between 22.8°C (73°F) and 31.4°C (88.5°F).Temperature
The advent of September reveals an average high-temperature of a still tropical 31.4°C (88.5°F), showing minimal difference from the prior month. Kluwut, during September, witnesses an average low-temperature of 22.8°C (73°F).Heat index
The heat index value during September is appraised at a torrid 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.It is crucial to understand that heat index figures are for shade and gentle wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
September and October, with an average relative humidity of 69%, are the least humid months.Rainfall
In Kluwut, in September, during 9.8 rainfall days, 18mm (0.71") of precipitation is typically accumulated. In Kluwut, during the entire year, the rain falls for 222.6 days and collects up to 950mm (37.4") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:44 and sunset at 17:43. On the last day of September, sunrise is at 05:29 and sunset at 17:39 WIB.
Sunshine
The months with the most sunshine in Kluwut are August and September, with an average of 9.7h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Kluwut are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 7 in September transforms into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kluwut, Indonesia
- Average high temperature in September: 31.4°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.4°C).
- Average low temperature in September: 22.8°C
The months with the highest average low temperature are November and December (25°C).
The coldest month (with the lowest average low temperature) is August (22.2°C).
Average pressure in September
Kluwut, 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 (1009.2mbar).
Average wind speed in September
Kluwut, Indonesia
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).
Average humidity in September
Kluwut, Indonesia
- Average humidity in September: 69%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in September
Kluwut, Indonesia
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (146mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in September
Kluwut, Indonesia
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is December (25.5 days).
The month with the least rainy days is August (6.5 days).
Average daylight in September /
Average sunshine in September
Kluwut, 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 December (Average sunshine: 8h and 18min).
Average sunshine days in September
Kluwut, Indonesia
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is December (3.5 days).
Average UV index in September
Kluwut, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Kluwut, Indonesia
- Average cloud cover in September: 20
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Kluwut, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





