Climate and monthly weather forecast
Sinuiju, North Korea

Sinuiju, situated in North Korea, boasts a predominantly Humid Continental Climate, identified by the Köppen climate classification as 'Dwa'. This implies the presence of a severe dry winter and a notably hot summer. Breaking down the climatological parameters, a unique pattern emerges. Specifically, there is a full spectrum of temperatures throughout the year with the warmest month being August at 28.8°C (83.8°F) on average and the coldest being January with an average low of -14.2°C (6.4°F).

A notable feature of Sinuiju's climate is the distinct dry and wet seasons. The period from July to August receives substantial amounts of precipitation, peaking in August at 280mm (11.02"). The rest of the year is relatively dry, with December being the driest month, receiving a mere 19mm (0.75") of rainfall. Humidity remains relatively stable throughout the year, oscillating between 65% in February to 85% in July.

Sunshine hours and daylight hours similarly vary. December and January see the least daylight of 9.4 hours and 9.7 hours respectively, complemented by 6.1 to 6.7 hours of sunshine. In contrast, June has the longest daylight period at 15 hours, accompanied by 7.7 hours of sunshine. Despite this, the maximum number of sunshine hours occurs in September, with 7.9 hours recorded on average.

Given global travel preferences typically leaning towards mild temperatures and reasonable levels of rain, the ideal time to visit Sinuiju would be in the month of May. During this time, temperatures average between 9.9°C (49.8°F) at night and a peak of around 20.6°C (69.1°F) during the day, providing a comfortable range. Additionally, at 87mm (3.43"), rainfall remains at modest levels, ensuring comfortable outdoor excursions. With a generous 14.4 hours of daylight and 8.1 hours of sunshine, this would be an optimal time to explore and enjoy the unique scenery and attractions of Sinuiju.

Conversely, traveling to Sinuiju may prove challenging between the months of July to August. Even though these months have the longest daylight hours, they also come with high levels of humidity averaging 85% and abundant rainfall, registering as high as 280mm (11.02") in August. Combined with maximum temperatures hovering around the 28°C (82.4°F) mark, these months present potential heat and discomfort.

Spring in Sinuiju extends from March to May, bringing along gradual but noticeable changes in weather conditions. Average temperatures for these months range from -3.6°C (25.5°F) to 20.6°C (69.1°F) while nights see lows of -14.2°C (6.4°F) in March warming up to 9.9°C (49.8°F) in May. Rainfall varies between 29mm (1.14") and 87mm (3.43") over these months. As spring progresses, daylight and sunshine hours also increase to provide longer and warmer days.

Typical of a hot summer subcategory of a Humid Continental climate, the period of June to August sees temperatures soaring. Daytime averages reach 25.2°C (77.4°F) to 28.8°C (83.8°F) while nighttime low temperatures range from 15.8°C (60.4°F) to 20.8°C (69.4°F). Coupled with heavy rainfall escalating from 115mm (4.53") to 280mm (11.02"), and high humidity levels, summers in Sinuiju can be quite humid and sultry.

Autumn brings a milder and more comfortable climate to Sinuiju, extending from September to November. Daytime temperatures decline steadily through these months, moderating from 25°C (77°F) in September to a cooler 8.4°C (47.1°F) in November. Rainfall decreases drastically from 105mm (4.13") to 31mm (1.22"), giving way to drier conditions.

Characterizing the severe dry winter subcategory inherent in Sinuiju's climate, December to February sees intensely cold conditions. Average daytime temperatures drop from -1.3°C (29.7°F) in December to -4.1°C (24.6°F) in January, while nights can plunge as low as -10.4°C (13.3°F) to -14.2°C (6.4°F). Despite the cold, rainfall is sparse; merely 19mm (0.75") in December, reducing further to 8mm (0.31") in January and February. The limited daylight of roughly 10 hours coupled with approximately 6 hours of sunshine contribute to Sinuiju's severe winter conditions.

Sinuiju greets the new year with cold winter weather as January is the coldest month of the year. The frigid atmospheric conditions allow for a beautiful frosty landscape. The city records both the lowest maximum and minimum temperatures, reaching a sharp decline to -4.1°C (24.6°F) and -14.2°C (6.4°F) respectively. Weather in January »

The icy grip eases slightly in February providing a moderate respite from extreme winter conditions. The increased temperatures contribute to thawing of the frozen landscape. It is noticeable that there is an increase in daily sunshine hours to 7.8h as the duration of daylight gradually extends. Weather in February »

March marks the commencement of the spring season, with a warming trend experienced in Sinuiju. The transition results in a noticeable increase in temperature when compared to the previous winter months. A significant increment in rainfall to 29mm (1.14") is observed, indicating a more humid climate. Weather in March »

April brings a significant change in the weather conditions of Sinuiju. The temperatures continue their upward trend, marking a distinct shift from the freezing winter to the milder spring. Rainfall continues to rise, standing at 52mm (2.05"), signaling more humidity. Weather in April »

Sinuiju enjoys pleasant weather in May as residents say goodbye to spring and welcome the summer season with warmth. The city revels in the increase of maximum temperatures reaching 20.6°C (69.1°F) that makes for comfortable days. Weather in May »

June introduces Sinuiju to the full conditions of the summer season. The heat intensifies and the city experiences the longest days of the year. Rainfall levels spike to 115mm (4.53") aligning with the annual monsoon season associated with this time of the year. Weather in June »

July is the peak summer month in Sinuiju, characterized by high temperatures, humidity, and abundant rainfall. The city records the highest relative humidity all year at 85%, which suits the lives of crops and flora in the region. Weather in July »

In August, the summertime weather in Sinuiju continues to be hot even as subtle signs of change approach. Temperatures remain relatively high though slightly less than the previous month. A record-high rainfall of 280mm (11.02") is registered, contributing to high soil moisture levels significant for healthy crop growth. Weather in August »

As the leaves begin to turn, Sinuiju greets the arrival of autumn in September. The shift is noticeable as the hot summer gradually subsides to give way to milder autumn. There is a significant drop in rainfall to 105mm (4.13"), giving way to increasingly dry and clear days. Weather in September »

The month of October brings a fresh change in Sinuiju’s weather as the city moves deeper into the autumn season. The changing leaves start to drop, signaling the transition towards cooler weather. A further drop in average temperatures and rainfall indicates an ongoing shift towards the cold season. Weather in October »

Winter begins to set foot in Sinuiju during November as temperatures take a significant dip. The cold weather ushers in a frosty atmosphere and leafless trees. The city observes a steady decline in temperatures with maximum temperatures averaging around 8.4°C (47.1°F). Weather in November »

The final month of the year, December, brings the onset of full-blown winter in Sinuiju. With chilling temperatures and shorter daylight hours, it is the perfect backdrop for the holiday season. The frosty weather provides a refresher against the heat experienced in the earlier part of the year. Weather in December »