September weather forecastGwangju, South Korea
September
Weather in September
September in Gwangju marks a retreat from the high heat of summer towards more moderate temperatures. This change significantly contrasts from August’s soaring highs, with the mercury dipping to a maximum of 25.2°C (77.4°F). The autumnal equinox ushers in a period of rainfall retreat, and the vivid colors of fall start adorning the cityscapes. As September progresses, the gradually cooling weather brings about a sense of anticipation for the chilled air of October.Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 29.8°C (85.6°F) in August to a still warm 25.2°C (77.4°F). The low-temperature average for Gwangju during September stands at a refreshing 16.6°C (61.9°F).Humidity
The average relative humidity in September in Gwangju is 78%.Rainfall
In Gwangju, in September, it is raining for 9.5 days, with typically 40mm (1.57") of accumulated precipitation. In Gwangju, during the entire year, the rain falls for 105 days and collects up to 417mm (16.42") of precipitation.Snowfall
In Gwangju, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 06:05 and sunset at 18:59. On the last day of September, sunrise is at 06:26 and sunset at 18:18 KST.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Gwangju is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gwangju, South Korea
- Average high temperature in September: 25.2°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 16.6°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Gwangju, South Korea
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is January (1025mbar).
The month with the lowest atmospheric pressure is July (1007.2mbar).
Average wind speed in September
Gwangju, South Korea
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).
Average humidity in September
Gwangju, South Korea
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are February and March (65%).
Average rainfall in September
Gwangju, South Korea
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (89mm).
The driest month (with the least rainfall) is December (10mm).
Average rainfall days in September
Gwangju, South Korea
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is December (5.3 days).
Average snowfall in September
Gwangju, South Korea
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Gwangju, South Korea
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gwangju, South Korea
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is May (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Gwangju, South Korea
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Gwangju, South Korea
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Gwangju, South Korea
- Average cloud cover in September: 36
The month with the most cloud cover is July (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in September
Gwangju, South Korea
- Average visibility in September: 9km
The months with the highest visibility are February, March, October, November and December (10km).
The months with the lowest visibility are July and August (8km).
