The climate in Yilan during October can be summarized as cool and reasonably dry.
October is in the fall / autumn in Yilan and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night -2°C (29°F) is normal.
| Daytime temperature | 11.5°C 52.6°F |
|---|---|
| Nightly temperature | -1.5°C 29.4°F |
| Average temperature | 5°C 41°F |
| Daily sunshine | 7.3 hrs |
| Avg rainfall | 32 mm 1.3 ins |
| Rainy days | 9 days |
| Sea temperature | 13.4°C 56.1°F |
| Humidity | 63% |
| Windspeed | 9.7kph 6 mph |
On average October is the 6th wettest month of the year in Yilan with around 32mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.3 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Yilan in October 2025.
Best places to visit in October
| Hottest month: | July | 27.3°C 81.1°F |
|---|---|---|
| Driest month: | January | 4mm 0.2ins |
| Sunniest month: | February | 7.6hrs |
| Coldest month: | January | -13.7°C 7.3°F |
| Wettest month: | July | 137mm 5.4ins |