Climate and monthly weather forecast
Nampo, North Korea

Situated in North Korea, Nampo experiences a climatic classification listed as Dwa, according to the Köppen climate categorization. This indicates a humid continental climate defined by its severe dry winter and hot summer. Over the course of the year, the Nampo climate sees vast alterations in atmospheric conditions, growing from the frosty weather of the winter to the blistering heat of the summer.

Examinations of the yearly weather reveal observable temperature highs, varying from -2°C (28.4°F) in the early winter months, to a peak of 27°C (80.6°F) during summer. Likewise, the lowest temperatures range from a frigid -8°C (17.6°F) in winter to a more bearable 21°C (69.8°F) in the height of summer. Precipitation also fluctuates significantly with the seasons, increasing from 13mm (0.51") in the early year, reaching its apex at 262mm (10.31") in the summer months, then declining steadily back to approximately 20mm (0.79") in December. Accompanying these changes, daylight hours shift moderately throughout the year, climbing from 9.8h in January to a maximum of 14.8h in June.

A unique climatic pattern in Nampo is the distinct period of precipitation in the summer months, most notably from July to September. These months see rainfall figures exceed 100mm (3.94"), indicating a marked monsoon season which is a typical feature of Dwa climates.

The most suitable period to plan a trip to Nampo would be during the cooler months stretching from April to June. During this time, visitors can expect moderate temperatures, ranging between 7°C (44.6°F) and 24°C (75.2°F). Additionally, these months present relatively drier conditions, with rainfall measurements lower than 81mm (3.19"), facilitating outdoor activities. Daylight hours are also on the increase, achieving a peak of 14.8 hours by June, enabling visitors to make the most of their days.

The most challenging period to visit Nampo would be the monsoon season, occurring roughly from July to September. Rainfall measurements during these months reach significant highs, stretching from 109mm (4.29") to 262mm (10.31"), which could disrupt outdoor plans and travel. Notably, the extreme heat of summer adds another layer to the discomfort. July and August bring the highest average temperatures of 27°C (80.6°F), coupled with the maximum sea temperatures of 22.3°C (72.1°F) and 22.8°C (73°F) respectively.

Spring manifests itself in Nampo from March to May, unfolding in temperatures that rise from 0°C (32°F) to 21°C (69.8°F) over this period. Precipitation levels follow suit, shifting from a subdued 30mm (1.18") in the earlier spring months to an elevated 71mm (2.8") by May. In tandem with these changes, daylight gradually lengthens. Hours of sunlight increase from an average of 12h in March to an appreciable 14.3h by May. The sea also begins to warm up at this time, with temperatures rising from 2.3°C (36.1°F) to approximately 11.3°C (52.3°F).

Summer in Nampo lasts from June to August. At this time, the spectrum of temperatures ranges from a pleasant 17°C (62.6°F) in June to a whopping 21°C (69.8°F) in both July and August. Rainfall patterns markedly reflect a monsoon season. Rainfall increases rapidly from 81mm (3.19") in the beginning of summer to its peak of 262mm (10.31") in July. The sea temperature rises consistently over these months, from an average of 18.3°C (64.9°F) and soars to a high of 22.8°C (73°F) by the end of summer.

The transition to autumn is noticeable in Nampo from September to November. Over this time, the average high temperatures decline from 23°C (73.4°F) to 9°C (48.2°F) with the drop in low temperatures from 16°C (60.8°F) to 2°C (35.6°F). As autumn continues, the city sees reductions in rainfall from 109mm (4.29") in September to 41mm (1.61") by November. Daylight hours also contract during this season, declining from 12.4h in September, to an average of 10.1h in November.

Winter in Nampo spans from December to February. During this season, the range of the average high temperatures extends from -2°C (28.4°F) to 1°C (33.8°F) and the lows from -8°C (17.6°F) to -6°C (21.2°F), making it the coldest period of the year. Over these months, the city experiences a drier spell with December, January, and February recordings of 20mm (0.79"), 13mm (0.51"), and 13mm (0.51") of rainfall respectively. Furthermore, daylight hours fall to an annual low, averaging between 9.5h to 10.8h. The sea, too, cools down drastically, with temperatures falling from 8.4°C (47.1°F) in December to as low as 1.1°C (34°F) by February.

January is the month where Nampo, North Korea experiences the coldest temperatures. The climate is influenced by the cold Siberian winds, pushing temperatures down to a low of -8°C (17.6°F) and rising marginally to -2°C (28.4°F). Weather in January »

February in Nampo continues the winter spell with its distinctly low temperatures, although the trend begins to lean towards a slightly warmer average compared to January. The freezing temperatures climb subtly from -8°C (17.6°F) to -6°C (21.2°F). Weather in February »

As March approaches, Nampo begins to welcome spring with a notable rise in temperatures and an increase in precipitation. In a departure from the winter chill, lows now hover around 0°C (32°F) and reach up to 7°C (44.6°F). Rainfall doubles from 13mm (0.51") in February to 30mm (1.18") heralding the arrival of the rainy season. Weather in March »

April in Nampo brings a refreshing change. Temperatures now rise drastically to a maximum of 14°C (57.2°F) and minimum of 6°C (42.8°F)—indicating a welcome respite from the cold. The climb in rainfall to 43mm (1.69") indicates the full-blown onset of the rainy season. Weather in April »

May marks the commencement of warmer weather in Nampo, completing the transition from the preceding winter. The mercury now hits a high of 21°C (69.8°F), more than double the previous month. It gets pleasantly warm, signalling the beginning of summer. Weather in May »

June signifies the arrival of summer in Nampo with temperatures peaking at 24°C (75.2°F). As the city steers away from the coolness of May, the rainfall escalates to a hefty 81mm (3.19"). An abundance of daylight complemented by warmer sea temperatures underscores the ideal conditions for beachside recreational activities. Weather in June »

July in Nampo witnesses the peak of summer, with temperatures soaring to a high of 27°C (80.6°F) and hitting a low of 21°C (69.8°F). It's the hottest month of the year, marked by the maximum rain - a substantial 262mm (10.31"). Weather in July »

August in Nampo continues with the high-temperature trend set in July, maintaining a constant between 21°C (69.8°F) to 27°C (80.6°F). However, rainfall begins to decrease slightly from the past month’s deluge to 221mm (8.7"). Weather in August »

With the arrival of September, Nampo witnesses a reduction in heat and rainfall. Maximum temperatures dip to a more comfortable 23°C (73.4°F), signaling the onset of autumn. While the rainfall also reduces to 109mm (4.29"), the sea maintains a balmy temperature above 20°C (68°F). Weather in September »

October in Nampo facilitates the full onset of autumn. The temperatures further decline to a maximum and minimum of 17°C (62.6°F) and 9°C (48.2°F), respectively. A drastic drop in rainfall to 43mm (1.69") paints a much drier picture, offering a stark contrast to September’s wetness. Weather in October »

November in Nampo begins to prepare for winter. The maximum temperature drops to 9°C (48.2°F), while the minimum goes down to 2°C (35.6°F). While the sea and daylight hours continue to grow colder and shorter, rainfall further decreases to 41mm (1.61"), making November one of the drier months. Weather in November »

December in Nampo closes the year with the core winter setting in. The temperature drops further, ranging from -4°C (24.8°F) to 2°C (35.6°F), thereby marking a return to the chilly days of January. Rainfall reduces further to 20mm (0.79"), paving the way for a dry yet frosty climate. Weather in December »