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Best Time for the Taiwan's Round-Island Rail
Sweet spot: January, February, March — computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
Typhoons done, humidity down — the east-coast line between cliffs and Pacific is the ride of the trip.
Typhoon season: itineraries need slack, but night markets don't cancel for weather.
| Month | Temp | Rain | Daylight | |
|---|---|---|---|---|
| January | 8.6–26.6°C | 56 mm | 10.7 h | |
| February | 11.2–27.9°C | 49 mm | 11.2 h | |
| March | 10.6–28.9°C | 74 mm | 11.8 h | |
| April | 15.6–31.3°C | 92 mm | 12.5 h | |
| May | 18.8–32.4°C | 214 mm | 13.2 h | |
| June | 22.1–33.2°C | 283 mm | 13.5 h | |
| July | 24.2–33.9°C | 228 mm | 13.3 h | |
| August | 24.0–33.3°C | 343 mm | 12.8 h | |
| September | 22.3–32.1°C | 229 mm | 12.1 h | |
| October | 18.8–31.7°C | 82 mm | 11.5 h | |
| November | 14.9–29.4°C | 69 mm | 10.8 h | |
| December | 11.0–27.5°C | 52 mm | 10.6 h |