September weather forecastMergosono, Indonesia
September weather for Mergosono, Indonesia: The first month of the spring, September, is also a moderately hot month in Mergosono, Indonesia, with an average temperature ranging between min 18.2°C (64.8°F) and max 27°C (80.6°F). On the first day of September in Mergosono, Indonesia, sunrise is at 05:30 and sunset at 17:28.
September
Weather in September
The first month of the spring, September, is also a moderately hot month in Mergosono, Indonesia, with an average temperature ranging between min 18.2°C (64.8°F) and max 27°C (80.6°F).Temperature
September's arrival brings an average high-temperature of a still moderately hot 27°C (80.6°F), slightly deviating from August's 26.2°C (79.2°F). Mergosono's September nights cool down to an average low-temperature of 18.2°C (64.8°F).Heat index
The heat index value for September is calculated to be a tropical 30°C (86°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In September, the average relative humidity is 80%.Rainfall
In Mergosono, in September, during 17.2 rainfall days, 85mm (3.35") of precipitation is typically accumulated. Throughout the year, there are 312.3 rainfall days, and 3812mm (150.08") of precipitation is accumulated.Daylight
In Mergosono, the average length of the day in September is 12h and 4min.On the first day of September in Mergosono, Indonesia, sunrise is at 05:30 and sunset at 17:28. On the last day of the month, sunrise is at 05:14 and sunset at 17:24 WIB.
Sunshine
The month with the most sunshine in Mergosono is September, with an average of 8.4h of sunshine.UV index
February through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mergosono, Indonesia
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is October (28.3°C).
The month with the lowest average high temperature is January (25.3°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is November (20.5°C).
The coldest month (with the lowest average low temperature) is August (17.8°C).
Average pressure in September
Mergosono, Indonesia
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is August (1011.8mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Mergosono, Indonesia
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are August and September (7.1km/h).
The calmest month (with the lowest average wind speed) is April (4.1km/h).
Average humidity in September
Mergosono, Indonesia
- Average humidity in September: 80%
The months with the highest relative humidity are February and March (90%).
The month with the lowest relative humidity is October (78%).
Average rainfall in September
Mergosono, Indonesia
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is January (627mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in September
Mergosono, Indonesia
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is January (30.9 days).
The month with the least rainy days is September (17.2 days).
Average daylight in September /
Average sunshine in September
Mergosono, 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: 8h and 24min
The month with the most sunshine is September (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Mergosono, Indonesia
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January, February and April (0 days).
Average UV index in September
Mergosono, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Mergosono, Indonesia
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is September (Cloud cover 43).
Average visibility in September
Mergosono, Indonesia
- Average visibility in September: 8km
The months with the highest visibility are September and October (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (7km).
