September weather forecastLowanu, Indonesia
September
Weather in September
September, the first month of the spring in Lowanu, is still a warm month, with an average temperature varying between 21.3°C (70.3°F) and 28.5°C (83.3°F).Temperature
September records an average high-temperature of a still moderately hot 28.5°C (83.3°F), indicating a minor variation from the preceding month. In the month of September, Lowanu experiences an average low-temperature of 21.3°C (70.3°F).Heat index
September's heat index is estimated at a tropical 33°C (91.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
September and October, with an average relative humidity of 80%, are the least humid months in Lowanu.Rainfall
In Lowanu, in September, during 17.1 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, in Lowanu, there are 293.9 rainfall days, and 1749mm (68.86") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 05:39 and sunset at 17:37. On the last day of September, in Lowanu, sunrise is at 05:23 and sunset at 17:33 WIB.
Sunshine
The average sunshine in September is 8.8h.UV index
January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lowanu, Indonesia
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is October (29.3°C).
The month with the lowest average high temperature is July (27.7°C).
- Average low temperature in September: 21.3°C
The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).
Average pressure in September
Lowanu, Indonesia
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Lowanu, Indonesia
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is August (11.6km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).
Average humidity in September
Lowanu, Indonesia
- Average humidity in September: 80%
The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).
Average rainfall in September
Lowanu, Indonesia
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is March (236mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Lowanu, Indonesia
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.8 days).
Average daylight in September /
Average sunshine in September
Lowanu, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is February (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Lowanu, Indonesia
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January and February (0.4 days).
Average UV index in September
Lowanu, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, March and October (UV index 7).
The months with the lowest UV index are January, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Lowanu, Indonesia
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Lowanu, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).





