Monthly weather forecast and climate
Nepalgunj, Nepal NP

Nepalgunj has a humid subtropical type of climate (Köppen climate classification Cwa) with warm, wet summers and cold, dry winters. Nepalgunj lies in the Terai plains in Nepal, only 100 miles north of the border with India. The tropical location of the city in the plains of a hilly country bears a significant influence on its climate.

Nepalgunj lies at an altitude of 150 meters above sea level and has mostly flat topography. The city lies in the southern lowland of the Nepali Terai region, which is the northern extension of the Gangetic Plain. The region is home to many watersheds, rivers, and lakes. Nepalgunj is at a modest distance from the Himalayan foothills, and the vegetation in the region consists of tall grasslands, sal forests, and scrubs.

Nepalgunj has hot summers, wet monsoons, and cold winters. The summers are humid and hot as temperatures reach a peak of 37.8°C (100°F) in May. Summer nights are warm and humid with occasional rain. The rainy season is hot, sticky and wet, and lasts for more than three months starting from the mid of June. Winters are pleasant with mostly clear skies and no frost. The cold season can see chilly nights at its peak in January. Spring and autumn are short, mild, and mostly dry.

The annual rainfall in Nepalgunj is an abundant 1447.8mm (57") as it lies in the vast Gangetic Plain. June to September brings monsoonal rains that contribute approximately 85% of the yearly precipitation. Floods frequently occur in the region due to the heavy rainfall and steepness of river channels that descend from the hilly areas. Snowfall and frost are rare, but the conditions can be foggy and overcast during the wet season. The vast plains see substantial wind speeds that can multiply the effect of the cold. The best time to visit Nepalgunj is from November to February, which covers the entire winter and a part of autumn. The conditions are pleasant with the temperatures in the 8.9°C (48°F) to 27.8°C (82°F) range. The weather is mostly dry in the absence of rain, and the humidity is low. The departure of the monsoon and the arrival of the winter also see clear skies and greenery everywhere. Winter is the best time to witness the beauty of the mountains.

The worst time to visit Nepalgunj is during the monsoon from June to September when the rainfall is heavy. A substantial portion of the annual rainfall occurs in the rainy season as the skies remain cloudy, and the conditions are misty. Humidity is at the highest of the year, and there is a danger from mudslides and slippery trails. Temperatures remain high in the wet season and often cross 37.8°C (100°F).

Nepalgunj is prone to severe thunderstorms, floods, and landslides during the rainy season. The city is part of the Himalayan region, which is seismically active. Torrential rainfall is the chief feature of the monsoonal rain system, which can see persistent precipitation that lasts for days. Floods frequently occur, while landslides and avalanches pose a significant threat in the wet season due to the loose soil and the winter. Earthquakes frequently occur, few of which are of high magnitude that can devastate the region.

January is usually the coldest month of the year in Nepalgunj as the average temperatures drop to the 8.9°C (48°F) to 21.1°C (70°F) range. Weather in January »

February is a cold winter month in Nepalgunj with moderate sunshine and mostly clear skies. The average temperatures are in the pleasant zone of 11.7°C (53.1°F) to 25°C (77°F). Weather in February »

March has pleasant weather in Nepalgunj as the spring season arrives in the city. The conditions are dry in the absence of measurable rainfall. Weather in March »

April sees a steady increase in heat in Nepalgunj, Nepal, as the average temperatures register in the warm zone of 21.1°C (70°F) to 36.7°C (98.1°F). Weather in April »

May is usually the hottest month of the year in Nepalgunj, with an average high temperature above 37.2°C (99°F). The days are hot, and nights are warm - averaging 24.4°C (75.9°F). Weather in May »

June brings hot and humid summer weather to Nepalgunj along with the heavy precipitation of the rainy season. The average temperatures are in the range of 26.7°C (80.1°F) to 36.7°C (98.1°F). Weather in June »

July is the wettest month of the year in Nepalgunj, Nepal, as the southwest monsoon unleashes its full fury on the region. It may rain for extended periods. Weather in July »

August is a wet and humid month in Nepalgunj with heavy rainfall to the tune of 353.1mm (13.9"). The temperatures are mostly in the 26.7°C (80.1°F) to 32.8°C (91°F) span. Weather in August »

September is the last month of the rainy season in Nepalgunj, as the city receives 233.7mm (9.2") of rainfall. The conditions change quickly, from sticky and hot to cool and pleasant. Weather in September »

The average temperatures in this Nepal's sub-metropolitan city are in the zone of 20.6°C (69.1°F) to 31.7°C (89.1°F), while many days cross at least 35°C (95°F). Weather in October »

November brings beautiful weather to Nepalgunj with a slight drop in temperatures. The average temperatures lie between 15°C (59°F) and 27.8°C (82°F). Weather in November »

December is the beginning of the mild winter season in Nepalgunj with the average temperatures in the range of 10.6°C (51.1°F) to 23.3°C (73.9°F). Weather in December »
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