מזג האוויר בטאיג'ונג במאי

Taiwan forum threads are direct that late May marks the start of the plum rain season, bringing rain on roughly half the days through the following weeks, with fog at Alishan described as an almost daily occurrence even outside heavy rain spells. The more typical pattern posters described was sunny mornings followed by afternoon thunderstorms lasting an hour or two before clearing again, rather than sustained all-day washouts. One specific frustration flagged repeatedly: the famous Alishan sunrise is genuinely hit-and-miss on foggy mornings, so visitors chasing it were advised to build in a backup morning if possible, and to always carry a proper rain jacket or poncho.

Forum posters describe July and August in Taiwan as warm and humid, with temperatures commonly in the 33-36C range, and August sitting right in the middle of typhoon season (June through October), with August, July and September the three months most likely to see one make landfall. Posters are consistent that most summer rain actually comes as short, predictable afternoon thunderstorms lasting 30-60 minutes, with mornings typically sunny and clear - a pattern that lets visitors plan outdoor sightseeing for the morning and save indoor activities for the afternoon rain window. Posters note that if a typhoon does hit during a trip, it typically costs travelers one or two disrupted days with transport and parks shut down, though most storms just pass by without a direct hit. Posters generally rate August as hot, humid and genuinely typhoon-season for Taichung, workable with flexible plans and a morning-outdoor, afternoon-indoor rhythm.

Forum posters describe February in southern/central Taiwan as cool and pleasant, generally 15-20C, though cold snaps from the north can push temperatures down toward 10-12C with little warning even as some days climb into the high 20s. Winter counts as the dry season, which posters call a genuine advantage for outdoor sightseeing despite the cooler air. The standard packing list is layers - long pants, a light jacket, and a compact umbrella - with thicker layers reserved for any side trip up to higher-altitude spots like Alishan, and something warm for chilly evenings at the night markets.