September weather forecastLuwuk, Indonesia
September
Weather in September
September, the first month of the spring in Luwuk, is still a warm month, with an average temperature ranging between max 27.5°C (81.5°F) and min 22.6°C (72.7°F).Temperature
The onset of September manifests an average high-temperature of a still moderately hot 27.5°C (81.5°F), demonstrating a minor variation from the preceding month. In Luwuk, the month of September records an average minimum temperature of 22.6°C (72.7°F), a slight dip from the daily highs.Heat index
The heat index in September is evaluated at a hot 31°C (87.8°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
February, September through December, with an average relative humidity of 79%, are the least humid months in Luwuk, Indonesia.Rainfall
The month with the least rainfall in Luwuk is September, when the rain falls for 18.1 days and typically collects 47mm (1.85") of precipitation.Sea temperature
August and September, with an average sea temperature of 28.8°C (83.8°F), are months with the coldest seawater.Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.
Daylight
In September, the average length of the day in Luwuk is 12h and 7min.On the first day of the month, sunrise is at 05:45 and sunset at 17:51. On the last day of September, in Luwuk, sunrise is at 05:35 and sunset at 17:42 WITA.
Sunshine
In Luwuk, the average sunshine in September is 9h.UV index
January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 7 in September leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Luwuk, Indonesia
- Average high temperature in September: 27.5°C
The warmest months (with the highest average high temperature) are November and December (28.6°C).
The month with the lowest average high temperature is July (26.6°C).
- Average low temperature in September: 22.6°C
The month with the highest average low temperature is December (24.6°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).
Average pressure in September
Luwuk, Indonesia
- Average pressure in September: 1010.8mbar
The month with the highest atmospheric pressure is August (1010.9mbar).
The month with the lowest atmospheric pressure is December (1008.2mbar).
Average wind speed in September
Luwuk, Indonesia
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is August (10.7km/h).
The calmest month (with the lowest average wind speed) is November (4.8km/h).
Average humidity in September
Luwuk, Indonesia
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are February, September, October, November and December (79%).
Average rainfall in September
Luwuk, Indonesia
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is June (130mm).
The driest month (with the least rainfall) is September (47mm).
Average rainfall days in September
Luwuk, Indonesia
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is September (18.1 days).
Average sea temperature in September
Luwuk, Indonesia
- Average sea temperature in September: 28.8°C
The best month for swimming (with the highest average sea temperature) is May (30°C).
The coldest months (with the lowest average sea temperature) are August and September (28.8°C).
Average daylight in September /
Average sunshine in September
Luwuk, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is February (Average sunshine: 10h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 36min).
Average sunshine days in September
Luwuk, Indonesia
- Average sunshine days in September: 9 days
The month with the most sunshine days is September (9 days).
The months with the least sunshine days are April and May (2.3 days).
Average UV index in September
Luwuk, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, September, October, November and December (UV index 7).
The months with the lowest UV index are June, July and August (UV index 6).
Average cloud cover in September
Luwuk, Indonesia
- Average cloud cover in September: 31
The months with the most cloud cover are June and July (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Luwuk, 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).
