Based on the Köppen climate classification, Mount Acland is located in a marine west coast climate zone, with a tundra climate at the summit. Prevailing westerly winds blow moist air from the Tasman Sea onto the mountains, where the air is forced upward by the mountains, causing moisture to drop in the form of rain or snow. This climate supports the Aida Glacier on this mountain's west slope. The months of December through February offer the most favourable weather for viewing or climbing this peak.