September weather forecastLette, Indonesia
September
Weather in September
September, the first month of the spring in Lette, is still a tropical month, with an average temperature fluctuating between 30.8°C (87.4°F) and 24.6°C (76.3°F).Temperature
September's beginning signals an average high-temperature of a still tropical 30.8°C (87.4°F), barely different from August's 30°C (86°F). Lette records an average temperature drop to a moderately hot 24.6°C (76.3°F) in September.Heat index
The heat index value during September is evaluated at a fiery hot 36°C (96.8°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 67%.Rainfall
The months with the least rainfall are August and September Rain falls for 8.6 days and accumulates 19mm (0.75") of rain.Daylight
In September, the average length of the day is 12h and 5min.On the first day of September, sunrise is at 06:01 and sunset at 18:02. On the last day of the month, sunrise is at 05:47 and sunset at 17:56 WITA.
Sunshine
The months with the most sunshine are September and December, with an average of 10.1h of sunshine.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lette, Indonesia
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is October (31.1°C).
The month with the lowest average high temperature is January (28.7°C).
- Average low temperature in September: 24.6°C
The month with the highest average low temperature is November (26.4°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure in September
Lette, Indonesia
- Average pressure in September: 1010.5mbar
The month with the highest atmospheric pressure is August (1010.7mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in September
Lette, Indonesia
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is August (10km/h).
The calmest month (with the lowest average wind speed) is May (7.4km/h).
Average humidity in September
Lette, Indonesia
- Average humidity in September: 67%
The months with the highest relative humidity are January, February, April and May (77%).
The months with the lowest relative humidity are September and October (67%).
Average rainfall in September
Lette, Indonesia
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is January (194mm).
The driest months (with the least rainfall) are August and September (19mm).
Average rainfall days in September
Lette, Indonesia
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is December (27 days).
The month with the least rainy days is August (7.8 days).
Average daylight in September /
Average sunshine in September
Lette, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 10h and 6min
The months with the most sunshine are September and December (Average sunshine: 10h and 6min).
The month with the least sunshine is May (Average sunshine: 6h and 54min).
Average sunshine days in September
Lette, Indonesia
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is August (21.1 days).
The month with the least sunshine days is December (3.1 days).
Average UV index in September
Lette, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Lette, Indonesia
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 16).
Average visibility in September
Lette, 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).
