Alishan Weather & Climate: Best Time to Visit

The weather in Alishan changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a pleasant 18°C (64°F).

At night, temperatures range from around 20°C (68°F) in July to 9°C (48°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Alishan has a relatively rainy climate with high precipitation levels, averaging 3076 mm (121 in) of rainfall annually. Alishan can be quite wet during August, receiving approximately 684 mm (27 in) of precipitation over 20 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 54 mm (2.1 in) of precipitation spread across 17 rainy days days. For more details, please visit our Alishan Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Alishan experiences moderate variation in sunshine hours across the seasons. With 7.0 hours daily sunshine in July, it dips to 5.3 hours in February, offering a balanced mix of sunny and overcast days.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Alishan.

The city experiences its highest humidity in July, reaching 89%. In October, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year