Aalo experiences a humid subtropical climate, heavily influenced by the surrounding Himalayan mountains and the Indian monsoon. The weather is generally pleasant and moderate compared to the harsh cold of higher-altitude towns in the state.
Summers (March to June) are warm and humid, with temperatures ranging from 20°C to 30°C (68°F to 86°F). The monsoon season (June to September) brings heavy, torrential rainfall, which nourishes the dense forests but frequently causes landslides and disrupts road connectivity. Winters (November to February) are crisp and cool, with average temperatures dropping to between 10°C and 15°C (50°F to 59°F). While the town itself rarely sees snow, the surrounding higher peaks occasionally receive a dusting.
The best time to visit Aalo is during the post-monsoon and winter months, from October to April, when the weather is clear, cool, and ideal for outdoor exploration. Under the Köppen climate classification, Aalo falls under the Cwa (subtropical winter-dry) category.
