September weather forecastTrewung, Indonesia
September
Weather in September
The first month of the spring, September, is still a warm month in Trewung, Indonesia, with an average temperature varying between 29.5°C (85.1°F) and 23.4°C (74.1°F).Temperature
Upon the onset of September, Trewung witnesses an average high-temperature of a still moderately hot 29.5°C (85.1°F), showing a close resemblance to the prior month. The temperature lowers to an average of 23.4°C (74.1°F) during September nights.Heat index
For September, the heat index is appraised at a hot 34°C (93.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Trewung, the average relative humidity in September is 70%.Rainfall
In Trewung, Indonesia, during September, the rain falls for 10.9 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Trewung, there are 246.6 rainfall days, and 1251mm (49.25") of precipitation is accumulated.Daylight
In Trewung, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:28 and sunset at 17:27. On the last day of the month, sunrise is at 05:12 and sunset at 17:23 WIB.
Sunshine
The average sunshine in September is 9.8h.UV index
The months with the highest UV index in Trewung are February through June, August through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during September translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trewung, Indonesia
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is October (30.2°C).
The month with the lowest average high temperature is July (28.2°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is November (25°C).
The coldest month (with the lowest average low temperature) is August (23.1°C).
Average pressure in September
Trewung, Indonesia
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is August (1011.6mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Trewung, Indonesia
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is August (10.3km/h).
The calmest months (with the lowest average wind speed) are March and April (6km/h).
Average humidity in September
Trewung, Indonesia
- Average humidity in September: 70%
The months with the highest relative humidity are January and February (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Trewung, Indonesia
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is January (229mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in September
Trewung, Indonesia
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is March (29.1 days).
The month with the least rainy days is August (9 days).
Average daylight in September /
Average sunshine in September
Trewung, 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: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 8h and 0min).
Average sunshine days in September
Trewung, Indonesia
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is September (10.9 days).
The month with the least sunshine days is March (1.1 days).
Average UV index in September
Trewung, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January and July (UV index 6).
Average cloud cover in September
Trewung, Indonesia
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Trewung, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).
