Spring (March–May): Average 65–74°F, warm and comfortable climate, low rainfall, abundant sunshine. Common activities: flower viewing, hiking, cycling. Recommended clothing: light jacket, long-sleeved shirt, comfortable and breathable pants.
Summer (June–August): Average 79–82°F, hot and humid, occasional showers. Common activities: swimming, beach activities, enjoying ice cream. Recommended clothing: light and breathable clothing, sun protection clothing, sun hat.
Autumn (September–November): Average 69–80°F, pleasant climate, more rainfall in October. Common activities: maple viewing, mountain hiking, hot spring bathing. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average 59–63°F, lower temperatures, little rain and dry. Common activities: hot spring bathing, indoor activities, enjoying hot food. Recommended clothing: warm jacket, sweater, long pants.
Yilan climatological average
Annual average temperature: approx. 72.3°F / Annual rainfall: approx. 88 mm / Summer humidity: 60%–70% / Rainiest month: October
Yilan monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
59.5°F
0.9
February
63.1°F
2
March
65.1°F
1.3
April
74.5°F
4.2
May
74.3°F
5.9
June
79.9°F
7.4
July
82.8°F
15.1
August
82.4°F
6.3
September
80.8°F
8.9
October
75.4°F
23.4
November
69.3°F
8.8
December
60.6°F
4.3
Yilan weather for the next seven days
10/15
Wednesday
Patchy rain nearby
87.2°F/74.1°F
10/16
Thursday
Patchy rain nearby
87.3°F/73.3°F
10/17
Friday
Patchy rain nearby
87.4°F/73.5°F
10/18
Saturday
Moderate rain
87.9°F/73°F
10/19
Sunday
Heavy rain
79.9°F/73.2°F
10/20
Monday
Heavy rain
73.7°F/69.5°F
10/21
Tuesday
Moderate rain
67.9°F/66.8°F
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