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September Weather in Koksan, North Korea

Last updated: August 23, 2025

In Koksan, North Korea, the average temperature in September hovers around 19°C (67°F). Visitors can expect a minimum of 6°C (43°F) and a maximum of 29°C (84°F). With 145 mm (5.7 in) of precipitation over 7 days, it's advisable to pack an umbrella! The atmosphere feels pleasantly humid, with an average humidity of 77%.

September Temperature in Koksan

In September in Koksan, the average temperature is 19°C (67°F). Maximums can reach 29°C (84°F) while minimums can drop as low as 6°C (43°F). This makes Koksan an ideal destination for travelers seeking a mix of mild and warm weather during this time of year.

September Weather in Koksan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Koksan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koksan, September typically has an average temperature of 19°C (67°F), with highs reaching up to 29°C (84°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec212740506069757566534025
Data source: Temperature data for Koksan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Koksan

In Koksan in September, the precipitation amount is 145 mm (5.7 in) over the course of 7 days.

September Precipitation Trends in Koksan

The chart displays monthly precipitation patterns in Koksan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Koksan, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec20245068128110248339145625929
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Koksan

In Koksan in September, humidity is 77%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel slightly more challenging as the air clings to your skin, turning every step into a leisurely stroll through a sauna.

September Average Humidity in Koksan

This chart illustrates the average monthly humidity levels in Koksan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Koksan is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%62%60%67%76%83%88%90%77%80%76%69%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koksan

In Koksan in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Koksan.

Maximum UV Index Levels in Koksan for September

The chart shows the monthly maximum UV Index (UVI) for Koksan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Koksan typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Koksan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Koksan Compares to Other Months

Weather in Koksan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Koksan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Koksan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)20 mm (0.8 inches)65%moderate
February Weather-3°C (27°F)24 mm (1.0 inches)61%moderate
March Weather5°C (41°F)50 mm (2.0 inches)60%high
April Weather10°C (51°F)68 mm (2.7 inches)67%very high
May Weather16°C (61°F)128 mm (5.0 inches)76%very high
June Weather20°C (69°F)110 mm (4.3 inches)83%very high
July Weather24°C (75°F)248 mm (9.8 inches)88%extreme
August Weather24°C (75°F)339 mm (13.3 inches)90%extreme
September Weather19°C (67°F)145 mm (5.7 inches)77%very high
October Weather12°C (54°F)62 mm (2.4 inches)80%high
November Weather4°C (40°F)59 mm (2.3 inches)76%moderate
December Weather-4°C (25°F)29 mm (1.1 inches)69%moderate

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