September Weather in Seongnam-si

Last updated: March 2, 2024

The weather in Seongnam-si, South Korea, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 29°C (84°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Seongnam-si throughout September hovers around 77%.

11°C (52°F)

Minimum temperature

21°C (70°F)

Average temperature

29°C (84°F)

Maximum temperature

77%

Humidity

Precipitation and Sunshine hours

In September, Seongnam-si averages 142 mm (5.6 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 12 hours 23 minutes of daylight, with the sun shining for approximately 8 hours 32 minutes each day. Additionally, there is a 39% probability of sunny days during this period.

142 mm (5.6 inches)

Precipitation

9 rainy days

Rainy days

8 hours 32 minutes

Sunshine hours

39%

Chance of sun

UV Index

In September, the UV Index in Seongnam-si reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 8 9 9 8 5 3 1 1 0
Exposure Low Moderate High VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 30 min 45 min

Compare Seongnam-si's Climate with Cities Worldwide