In Western world there are 4 season. But, in Nepal there are 6 seasons. Two additional seasons in Nepal are Rainy Season and Pre-winter Season. Nepali seasons are 2-months long.
Basanta Ritu/Spring (mid-March to mid-May)
Grishma Ritu/Summer (mid-May to mid-July)
Barsha Ritu/Rainy (mid-July to mid-September)
Sharad Ritu/Autumn (mid-September to mid-November)
Hemanta Ritu/Pre-Winter (mid-November to mid-January)
Shishir Ritu/Winter (mid-January to mid-April)
Basanta Ritu (mid-March to mid-May)
Spring season is called Basanta Ritu in Nepali. It spans two months – mid-March to mid-May. According to the Nepali calendar, it means Chaitra and Baishakh. In this season, new buds grow in trees, and flowers bloom. The temperature is also medium, not too cold and not too hot. You can experience windy days and nights during Basanta Ritu in Nepal.
Grishma Ritu (mid-May to mid-July)
Grishma Ritu spans from mid-May to mid-July of the English calendar. According to the Nepali calendar, it means Jestha and Aashad month. Grishma Ritu (summer season of Nepal) is the hottest season of all seasons in Nepal. The flowers fall, and fruits grow in trees. For agriculture, this is the best season to produce a crop. Farmers plants summer crops like paddy in this season.
Barsha Ritu (mid-July to mid-September)
According to the English English calendar, it lasts from mid-July to mid-September month. Likewise, according to the Nepali calendar, Barsha Ritu starts in Shrawan and ends in Bhadra month. The rainy season is called Barsha Ritu in Nepal. Barsha stands for Rain in English. At this season, almost always raindrops from the sky. This season is known for paddy plantation for farmers.
Sharad Ritu (mid-September to mid-November)
Sharad Ritu, the Autumn season of Nepal, starts in Ashwin and ends in Kartik month of the Nepali calendar. According to the English calendar, Sharad Ritu falls from mid-September to mid-November month. Sharad Ritu is the season of festivals. The major best festivals of Nepal, Teej, Dashain, and Tihar, are the main attraction of the season. Sharad Ritu is also known as the best time(season) to visit Nepal for adventure activities like trekking & peak climbing because of the excellent weather, relaxed environment, neither hot nor cold & magnificent mountain views.
Hemanta Ritu (mid-November to mid-January)
Hemanta Ritu, The pre-winter season in Nepal, starts in Mangsir and ends in Poush month of the Nepali calendar. According to the English calendar, it falls from mid-November to mid-January. The temperature begins to fall, and people prepare themselves for the winter. Farmers busy themselves in agriculture fields.
Shishir Ritu (mid-January to mid-April)
Shishir Ritu, Winter Nepal’s winter season, starts in Magh and ends in Falgun month of the Nepali calendar. According to the English calendar, it falls from mid-January to mid-April. This season of Shishir Ritu is the coldest season of the all seasonal year of Nepal. Snow falls in an area of high altitude is a daily occurrence during this season. But to witness the beauty of sunrise & gigantic snow capped himalayas, its the best time to spend time in Pokhara valley with not so much cold.
The seasons in Nepal are clearly expressed: in the summer, in June-August when monsoon rains bring moisture from the Indian ocean, a little hot and damp. In winter, from mid-December to February dry and cool, snow falls in the mountains. Dry, stable weather in spring and autumn, the highest mountains and beautiful rivers, friendly locals — all this attracts travelers from all over the world to Nepal.