Overview: KathmanduKathmandu (Nepal) in general has a hot climate. Temperatures during the day are in the range from 18 °C (64 °F) in January to 29 °C (83 °F) in June. The least rainy month in Kathmandu is November with its 0 days of rain, the rainiest month is July, when it rains 20 days. The highest night temperatures could be experienced in July with 20 °C (69 °F), the lowest in January with 4 °C (39 °F).