The weather on Himlung Himal can be unpredictable and extreme, with low temperatures, high winds, and heavy snowfall. During the climbing season, which typically takes place from April to June and from September to November, temperatures can range from -20°C (-4°F) to -30°C (-22°F) at higher elevations. Strong winds and snowstorms are common, making it difficult for climbers to reach the summit. Due to the unpredictable nature of the weather, it is important for climbers to be well-prepared and equipped with the proper gear and clothing.