September Weather in Haeju, North Korea

Last updated: August 23, 2025

In September, the average temperature in Haeju, North Korea is a pleasant 21°C (70°F), with lows dipping to 11°C (53°F) and highs reaching up to 29°C (84°F). You can expect about 139 mm (5.5 in) of precipitation spread over 7 days, contributing to an average humidity of 77%. Whether you're exploring or relaxing, the climate offers a unique experience this time of year!

September Temperature in Haeju

In September in Haeju, the average temperature is 21°C (70°F). Maximums can reach 29°C (84°F), while minimums can drop as low as 11°C (53°F). This pleasant climate makes Haeju an ideal destination for travelers seeking comfortable weather and outdoor activities.

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

The chart illustrates September temperature patterns in Haeju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haeju, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (84°F) and lows dropping to around 11°C (53°F).

Data source: Temperature data for Haeju generated using information from the Copernicus Climate Change Service.

September Precipitation in Haeju

In Haeju in September, the total precipitation amount is 139 mm (5.5 in) over the course of 7 days.

September Precipitation Trends in Haeju

The chart displays monthly precipitation patterns in Haeju, 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 Haeju, September typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Haeju

In Haeju in September, humidity is 77%. With an average temperature of 21°C (70°F), this humidity feels like a warm, slightly sticky embrace, making travel invigorating yet slightly uncomfortable as you navigate the vibrant streets and outdoor attractions.

September Average Humidity in Haeju

This chart illustrates the average monthly humidity levels in Haeju, 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 Haeju is approximately 77%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Haeju

In Haeju 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 Haeju.

Maximum UV Index Levels in Haeju for September

The chart shows the monthly maximum UV Index (UVI) for Haeju 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 Haeju typically reaches 9, which falls under the very high exposure category.

Data source: Haeju 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 Haeju Compares to Other Months

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

This table compares monthly weather conditions in Haeju, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	16 mm (0.6 inches)	71%	moderate
February Weather	-1°C (31°F)	18 mm (0.7 inches)	65%	moderate
March Weather	5°C (42°F)	36 mm (1.4 inches)	65%	high
April Weather	11°C (52°F)	52 mm (2.1 inches)	75%	very high
May Weather	16°C (61°F)	93 mm (3.6 inches)	81%	very high
June Weather	21°C (70°F)	85 mm (3.4 inches)	85%	very high
July Weather	25°C (77°F)	173 mm (6.8 inches)	91%	extreme
August Weather	26°C (79°F)	227 mm (8.9 inches)	91%	extreme
September Weather	21°C (70°F)	139 mm (5.5 inches)	77%	very high
October Weather	15°C (58°F)	33 mm (1.3 inches)	79%	high
November Weather	7°C (45°F)	37 mm (1.5 inches)	80%	moderate
December Weather	0°C (32°F)	22 mm (0.9 inches)	74%	moderate