Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The average high-temperature during September registers at a still warm 28.2°C (82.8°F), maintaining a close resemblance to the previous month. The temperature lowers to an average of 21.3°C (70.3°F) during September nights.Heat index
September's heat index is appraised at a hot 33°C (91.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 80%.Rainfall
In September, in Kwarasan, the rain falls for 18.3 days. Throughout September, 55mm (2.17") of precipitation is accumulated. Throughout the year, there are 296.5 rainfall days, and 1844mm (72.6") of precipitation is accumulated.Daylight
In Kwarasan, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:37 and sunset at 17:35. On the last day of the month, sunrise is at 05:21 and sunset at 17:31 WIB.
Sunshine
The average sunshine in September is 8.6h.UV index
The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during September translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What are the least humid months?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Kwarasan have in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Kwarasan, Indonesia
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is July (27.3°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
Kwarasan, Indonesia
- Average pressure in September: 1011.8mbar
The months with the highest atmospheric pressure are August and September (1011.8mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Kwarasan, Indonesia
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).
Average humidity in September
Kwarasan, 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
Kwarasan, Indonesia
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is August (25mm).
Average rainfall days in September
Kwarasan, Indonesia
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.6 days).
Average daylight in September /
Average sunshine in September
Kwarasan, Indonesia
- Average daylight in September: 12h and 1min
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 4min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Kwarasan, Indonesia
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is August (12.3 days).
The month with the least sunshine days is March (0.5 days).
Average UV index in September
Kwarasan, 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
Kwarasan, Indonesia
- Average cloud cover in September: 42
The months with the most cloud cover are January and December (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 38).
Average visibility in September
Kwarasan, 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).
