Hualien weather in May
May in Hualien: hot, soaked, with clean air — a gamble, with 30 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#7 of 12 months in Hualien · #1203 of 1413 destinations to visit in May · comfort 57/100 (tier D)
- Days
- 27°C
- Nights
- 21°C
- Wet days
- 30
- Sun
- 7.8 h
- Humidity
- 88%
- Daylight
- 13 h
Traveller notes on Hualien in May
Taiwan's forum flags May as plum rain season, running roughly mid-May through mid-June, with rainfall that swings unpredictably between all-day drizzle and sudden downpours - an umbrella is a daily essential, not a maybe. The genuinely useful local tip: Hualien and the east coast often stay sunnier than the west side of the island during this stretch, since the Central Mountain Range blocks a lot of the weather systems coming off the Taiwan Strait. Hot and humid is the baseline regardless, so pack light layers along with the rain gear.
Other months in Hualien
Forum posters describe November temperatures here typically in the high-teens to mid-20sC, mild but genuinely variable - one traveler reported a 25C day that still saw rain roughly half the time during their stay. Posters do name the tail end of the year (November through January) as the local low point for rainfall, and the real precipitation totals back that up: November is the driest month of the year by rainfall volume, even though frequent rain days remain the norm rather than the exception. Posters warn the northeast monsoon's timing and strength vary unpredictably year to year, so a specific forecast close to departure (with a rainy-day backup plan for Taroko Gorge sightseeing) is standard advice, along with layers for cooler, windier stretches along the coast and in the mountains.
Add your own note from Hualien's card on the map.
Hualien climate normals — May
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hualien in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Hualien's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherHualien's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Hualien in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Taroko access is still limited
1 Jan – 31 DecClosuresBook earlyThe gorge has been under repair since the 2024 earthquake. Some trails and the visitor centre are open, several classic walks are not, and Highway 8 through the gorge runs on escorted release windows — check the park before you commit a day to it. Source ↗
- Nature
Whale and dolphin season
1 Apr – 31 Oct · usuallyWhale seasonBoats run out of Hualien port through the warm half of the year. Dolphins on most trips, whales on a minority of them — and the sea off this coast is rough enough that mornings are the only sane slot.
- Season
Plum rain season
1 May – 15 Jun · usuallyMonsoonThe front that gives Taiwan its meiyu sits on the east coast for six weeks, mostly as heavy overnight rain. It is also when the rivers in the gorge run loud and the road crews stop work.
- Season
Wet season
MonsoonRisk30 rainy days and about 398 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Hualien — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Hualien?
Hualien in May — FAQ
- Is May a good time to visit Hualien?
- May in Hualien: hot, soaked, with clean air — a gamble, with 30 rainy days. It ranks #7 of 12 months for Hualien on SeasonMap's comfort score (57/100).
- What is the weather like in Hualien in May?
- In May, Hualien averages a daily high of 26.5°C and a low of 21.3°C, with about 397.6 mm of rain over roughly 29.6 rainy days.
- What is the air quality in Hualien in May?
- Hualien has a mean US Air Quality Index of about 45 in May.
Within 300 km: Sun Moon Lake's Firefly season around 1 Apr – 15 May, and Alishan's Firefly season around 10 Apr – 15 May.