Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's presence marks an average high-temperature of a still moderately hot 28.5°C (83.3°F), subtly varied from August's 28.8°C (83.8°F). Nighttime temperatures during September report a consistent average of 26.7°C (80.1°F).Heat index
September's average heat index is estimated at a tropical 33°C (91.4°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in September is 76%.Rainfall
In Gunungsitoli, in September, it is raining for 21.9 days, with typically 125mm (4.92") of accumulated precipitation. Throughout the year, there are 275.3 rainfall days, and 1965mm (77.36") of precipitation is accumulated.Daylight
In September, the average length of the day in Gunungsitoli, Indonesia, is 12h and 7min.On the first day of September in Gunungsitoli, sunrise is at 06:25 and sunset at 18:33. On the last day of the month, sunrise is at 06:16 and sunset at 18:22 WIB.
Sunshine
In September, the average sunshine in Gunungsitoli is 7.7h.UV index
The months with the highest UV index in Gunungsitoli 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
Is it hot in Gunungsitoli during September?
What is the average humidity in September in Gunungsitoli?
How much does it rain in Gunungsitoli in September?
What is the average length of the day in September in Gunungsitoli?
What time are sunrise and sunset in September in Gunungsitoli?
How long on average sun shines in September in Gunungsitoli?
What is the month with the highest UV index in Gunungsitoli?
What are the months with the lowest UV index in Gunungsitoli?
What is the UV index reading in September in Gunungsitoli?
Average temperature in September
Gunungsitoli, Indonesia
- Average high temperature in September: 28.5°C
The warmest months (with the highest average high temperature) are March and May (29.3°C).
The month with the lowest average high temperature is November (27.9°C).
- Average low temperature in September: 26.7°C
The month with the highest average low temperature is May (27.5°C).
The coldest month (with the lowest average low temperature) is December (26.3°C).
Average pressure in September
Gunungsitoli, Indonesia
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is May (1009.8mbar).
Average wind speed in September
Gunungsitoli, Indonesia
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is November (9.5km/h).
The calmest months (with the lowest average wind speed) are January and April (7.9km/h).
Average humidity in September
Gunungsitoli, Indonesia
- Average humidity in September: 76%
The month with the highest relative humidity is November (78%).
The months with the lowest relative humidity are February, June and July (74%).
Average rainfall in September
Gunungsitoli, Indonesia
- Average rainfall in September: 125mm
The wettest month (with the highest rainfall) is November (250mm).
The driest month (with the least rainfall) is June (116mm).
Average rainfall days in September
Gunungsitoli, Indonesia
- Average rainfall days in September: 21.9 days
The month with the highest number of rainy days is November (25.9 days).
The month with the least rainy days is June (18.3 days).
Average daylight in September /
Average sunshine in September
Gunungsitoli, Indonesia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 7h and 4min
The months with the most sunshine are February and June (Average sunshine: 8h and 30min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).
Average sunshine days in September
Gunungsitoli, Indonesia
- Average sunshine days in September: 6.4 days
The month with the most sunshine days is June (9.9 days).
The month with the least sunshine days is November (3.6 days).
Average UV index in September
Gunungsitoli, 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
Gunungsitoli, Indonesia
- Average cloud cover in September: 47
The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is February (Cloud cover 38).
Average visibility in September
Gunungsitoli, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
Gunungsitoli, Indonesia
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