September weather forecastPalu, Indonesia
September
Weather in September
September stands out with the least cloud cover of the year at 37%, offering plenty of sunshine for outdoor enthusiasts. It follows the August trend with a slight decrease in rainfall and humidity, giving the city an almost dry texture. The temperatures are harmonious with previous months, inviting a constant blend of city and beach activities. September expects a normal 12.1 daylight hours, while allowing more sunshine time at about 9.7 hours per day. The tranquil wind speed of 4.5km/h (2.8mph) lingers on, perfect for adventurous visitors.Temperature
As September takes its course, Palu's average high-temperature registers at a still warm 28.5°C (83.3°F), closely aligning with the preceding month. Nighttime temperature lowers to an average of 21.2°C (70.2°F) in September.Heat index
The heat index value during September is appraised at a hot 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index determinations are made taking into account the shade and light air movements. 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 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The months with the lowest humidity are January, February, September and October, with an average relative humidity of 84%.Rainfall
September is the month with the least rainfall. Rain falls for 28.5 days and accumulates 156mm (6.14") of precipitation.Sea temperature
In Palu, the average seawater temperature in September is 29.2°C (84.6°F).Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
The average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 05:57 and sunset at 18:03. On the last day of September, sunrise is at 05:46 and sunset at 17:54 WITA.
Sunshine
September has the most sunshine of the year, with an average of 9.7h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 6. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Palu, Indonesia
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is October (29°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in September: 21.2°C
The months with the highest average low temperature are November and December (22.5°C).
The coldest month (with the lowest average low temperature) is September (21.2°C).
Average pressure in September
Palu, Indonesia
- Average pressure in September: 1010.8mbar
The month with the highest atmospheric pressure is September (1010.8mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Palu, Indonesia
- Average wind speed in September: 4.5km/h
The windiest month (with the highest average wind speed) is January (5.2km/h).
The calmest month (with the lowest average wind speed) is November (4.3km/h).
Average humidity in September
Palu, Indonesia
- Average humidity in September: 84%
The month with the highest relative humidity is June (87%).
The months with the lowest relative humidity are January, February, September and October (84%).
Average rainfall in September
Palu, Indonesia
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is June (284mm).
The driest month (with the least rainfall) is September (156mm).
Average rainfall days in September
Palu, Indonesia
- Average rainfall days in September: 28.5 days
The month with the highest number of rainy days is May (29.9 days).
The month with the least rainy days is February (26.9 days).
Average sea temperature in September
Palu, Indonesia
- Average sea temperature in September: 29.2°C
The best months for swimming (with the highest average sea temperature) are May and June (29.9°C).
The coldest month (with the lowest average sea temperature) is February (28.8°C).
Average daylight in September /
Average sunshine in September
Palu, 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 42min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 42min).
Average sunshine days in September
Palu, Indonesia
- Average sunshine days in September: 1.2 days
The month with the most sunshine days is October (2.8 days).
The month with the least sunshine days is June (0.1 days).
Average UV index in September
Palu, Indonesia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Palu, Indonesia
- Average cloud cover in September: 37
The months with the most cloud cover are April and June (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Palu, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
