Mountain town in Chiayi, Taiwan
Alishan weather by month and the best time to visit
When to go to Alishan
Mar–Apr has cherry blossom (crowded); Oct–Dec has clear mornings and sunrise views. Jun–Sep brings afternoon rain and typhoons. Winter nights are near freezing.
Alishan weather by month
Average daily high, rainfall and conditions.
- Jan22°47 mm
- Feb24°39 mm
- Mar26°66 mm
- Apr28°102 mm
- May29°252 mm
- Jun29°343 mm
- Jul30°268 mm
- Aug29°400 mm
- Sep29°228 mm
- Oct28°73 mm
- Nov26°47 mm
- Dec23°37 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 22°C72°F | 11°C53°F | 47 mm | 73% | Pleasant |
| February | 24°C75°F | 13°C55°F | 39 mm | 72% | Pleasant |
| March | 26°C78°F | 15°C58°F | 66 mm | 71% | Pleasant |
| April | 28°C82°F | 18°C64°F | 102 mm | 72% | Pleasant |
| May | 29°C84°F | 21°C69°F | 252 mm | 78% | Rainy |
| June | 29°C83°F | 22°C71°F | 343 mm | 85% | Very wet |
| July | 30°C85°F | 22°C72°F | 268 mm | 85% | Rainy |
| August | 29°C84°F | 23°C73°F | 400 mm | 87% | Very wet |
| September | 29°C84°F | 22°C71°F | 228 mm | 85% | Rainy |
| October | 28°C82°F | 19°C67°F | 73 mm | 79% | Pleasant |
| November | 26°C80°F | 17°C62°F | 47 mm | 75% | Pleasant |
| December | 23°C74°F | 13°C55°F | 37 mm | 73% | Pleasant |
Best months across Taiwan
| Place | Best months | Warmest month |
|---|---|---|
| Taipei | Mar–Apr, Oct–Nov | Jul (30°C) |
| Tainan | Nov–Mar | Jul (30°C) |
| Kaohsiung | Feb–Mar, Nov–Dec | Jul (30°C) |
| Taichung | Mar–Apr, Oct–Nov | Jul (31°C) |
| Hualien | Mar–May, Oct–Nov | Jul (30°C) |
| Jiufen | Mar–Apr, Oct–Nov | Jul (28°C) |
| Sun Moon Lake | Mar–Apr, Oct–Nov | Jul (29°C) |
| Kenting | Mar–Apr, Oct–Nov | Jul (29°C) |
| Alishan | Mar–Apr, Oct–Dec | Jul (30°C) |
| Taitung | Apr–May, Oct–Nov | Jul (32°C) |
| Hsinchu | Apr, Oct–Dec | Jul (32°C) |
| Penghu | Apr–Jun, Sep | Jul (28°C) |
| Xiaoliuqiu | Apr–Jun, Sep–Oct | May (31°C) |
Quick answers
What is the best month to visit Alishan?
Mar–Apr, Oct–Dec. Mar–Apr has cherry blossom (crowded); Oct–Dec has clear mornings and sunrise views. Jun–Sep brings afternoon rain and typhoons. Winter nights are near freezing.
When is the rainy season in Alishan?
Rain peaks in August with about 400 mm. Months with 150 mm or more: May–Sep.
What is the hottest month in Alishan?
July, with average highs of 30°C (85°F).
How cold does Alishan get?
The coolest nights are in January, averaging 11°C (53°F).
More about Alishan
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Sources
- NASA POWER climatology (2001–2020)
- Alishan National Scenic Area
- Alishan Forest Railway
- Taiwan Tourism Administration
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 1.2°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.