September weather forecastSidosermo, Indonesia
September
Weather in September
September, the first month of the spring in Sidosermo, is also a hot month, with an average temperature varying between 24.4°C (75.9°F) and 31.7°C (89.1°F).Temperature
The transition into September notes an average high-temperature of a still tropical 31.7°C (89.1°F), revealing a mild distinction from the 30.8°C (87.4°F) in August. Sidosermo witnesses an average low-temperature of 24.4°C (75.9°F) throughout the month of September.Heat index
The heat index in September is calculated to be a very hot 38°C (100.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Sidosermo, the average relative humidity in September is 65%.Rainfall
In Sidosermo, during September, the rain falls for 4.1 days and regularly aggregates up to 8mm (0.31") of precipitation. In Sidosermo, during the entire year, the rain falls for 187.8 days and collects up to 839mm (33.03") of precipitation.Daylight
In Sidosermo, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:29 and sunset at 17:28. On the last day of September, sunrise is at 05:13 and sunset at 17:23 WIB.
Sunshine
August through October, with an average of 9.9h of sunshine, are months with the most 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 are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 during September translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sidosermo, Indonesia
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is October (32.9°C).
The months with the lowest average high temperature are January, February and July (30.1°C).
- Average low temperature in September: 24.4°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.2°C).
Average pressure in September
Sidosermo, Indonesia
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is August (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Sidosermo, Indonesia
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is April (6.3km/h).
Average humidity in September
Sidosermo, Indonesia
- Average humidity in September: 65%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is October (63%).
Average rainfall in September
Sidosermo, Indonesia
- Average rainfall in September: 8mm
The wettest month (with the highest rainfall) is February (179mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in September
Sidosermo, Indonesia
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is January (27 days).
The month with the least rainy days is August (3.7 days).
Average daylight in September /
Average sunshine in September
Sidosermo, 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 54min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 8h and 6min).
Average sunshine days in September
Sidosermo, Indonesia
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is February (2.8 days).
Average UV index in September
Sidosermo, 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
Sidosermo, Indonesia
- Average cloud cover in September: 12
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Sidosermo, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
