Whether you're visiting Yilan County in Taiwan during the peak of July (31°C (88°F)) or the cooler months around January (18°C (64°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Wujie, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Yilan County offers pleasant conditions in March, April, May, October, November and December, with temperatures typically ranging from 20°C (68°F) to 27°C (81°F).
The peak of the heat usually falls in July and August.
When it comes to rainfall, Yilan County sees significant variations throughout the year. October tends to be the wettest, receiving 409 mm (16 in) of rain, while March is much drier with just 182 mm (7.2 in). Travelers should note that the rainy season falls during January, February, April, May, June, July, August, September, October, November and December, bringing substantial precipitation ranging from 212 mm (8.3 in) to 409 mm (16 in) monthly.
Visitors hoping to maximize their time in the sun should consider planning their trip for July, when daylight hours are at their peak.
