September weather forecastBunaken, Indonesia
September
Weather in September
The first month of the autumn, September, is also a hot month in Bunaken, Indonesia, with an average temperature fluctuating between 30.4°C (86.7°F) and 24°C (75.2°F).Temperature
September brings a marginal elevation to a still tropical 30.4°C (86.7°F) from August's 30.2°C (86.4°F) in Bunaken's average high-temperatures. September nights in Bunaken are marked by an average temperature drop to a moderately hot 24°C (75.2°F).Heat index
The heat index value during September is estimated at a sweltering 38°C (100.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Note that heat index values are valued for light wind and location in the shade. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
With an average relative humidity of 76%, September is the least humid month.Rainfall
The month with the least rainfall is September, when the rain falls for 19.5 days and typically collects 69mm (2.72") of precipitation.Daylight
In September, the average length of the day is 12h and 7min.On the first day of September, sunrise is at 05:36 and sunset at 17:45. On the last day of the month, sunrise is at 05:27 and sunset at 17:33 WITA.
Sunshine
The month with the most sunshine is September, with an average of 9.3h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Bunaken. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bunaken. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bunaken, Indonesia
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is October (30.5°C).
The month with the lowest average high temperature is February (28.1°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is March (23.8°C).
Average pressure in September
Bunaken, Indonesia
- Average pressure in September: 1010.1mbar
The month with the highest atmospheric pressure is September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Bunaken, Indonesia
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is February (8.2km/h).
The calmest month (with the lowest average wind speed) is May (5.3km/h).
Average humidity in September
Bunaken, Indonesia
- Average humidity in September: 76%
The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is September (76%).
Average rainfall in September
Bunaken, Indonesia
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is June (161mm).
The driest month (with the least rainfall) is September (69mm).
Average rainfall days in September
Bunaken, Indonesia
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is May (28.3 days).
The month with the least rainy days is September (19.5 days).
Average daylight in September /
Average sunshine in September
Bunaken, Indonesia
- Average daylight in September: 12h and 6min
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 0min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 36min).
Average sunshine days in September
Bunaken, Indonesia
- Average sunshine days in September: 8 days
The month with the most sunshine days is August (8.6 days).
The month with the least sunshine days is November (1 days).
Average UV index in September
Bunaken, 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
Bunaken, Indonesia
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Bunaken, 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).
