SeasonScore
Hakodate, Japan
Photo: J o · CC BY-SA 3.0

Japan

Hakodate in May

🌷 Spring

Cool and some showers.

🎒 Pack: warm jacket for evenings

Best months: Jun (9.2), Sep (9.2), Oct (9.1)

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Why May scores 9.0What goes into the score

How it works
🌡️ 17° / 8°C🌧️ 89 mm💧 dew pt 9°🍃 PM2.5 12
  • Weather comfort8.6
    • ✓Cool (17°C highs / 8°C lows)
    • ✓Comfortable humidity (dew point 8.6°C)
    • ✓Mostly dry (~89 mm rain)
  • Air quality8.9
    • ✓Good (within WHO guideline) (PM2.5 ~12 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline9.0
    • ·Normal precautions
Compare monthsPut May side by side with another month
MayJun
Score9.0 Excellent9.2 Excellent
Season🌷 Spring☀️ Summer
High / low17° / 8°20° / 13°
Rain89 mm80 mm
Humiditydew pt 9°dew pt 13°
PM2.512 µg/m³15 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Hakodate weather-station normals. Rainfall: Hakodate weather-station normals (national met service).

Holidays & crowdsMay 2027

Holiday week

A long local holiday falls this month. Expect crowds at sights, fuller trains and flights, and higher hotel prices on those dates. Book ahead.

  • Golden Week 1–5 May · 5 days off in a row

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Nature calendarBlossoms, leaves & seasons in Hakodate

  • Cherry blossomIn MayTypical dates
    First blooms ~28 Apr, full bloom ~2 May

    Typical dates (1991–2020 normal). In 2021–2026 first blooms came between 14 Apr and 23 Apr (18 Apr in 2026). Blossoms last about a week after full bloom.

    Source: Japan Meteorological Agency

  • 2026 forecast: Onuma Park2026 forecast
    Peak from ~24 Oct 2026

    Last year the peak began 24 Oct. JWA expects most of Japan to be on time or a little later than usual this year.

    Source: Japan Weather Association (tenki.jp), forecast 14 Oct 2026

  • Cherry blossom 2026 (what actually happened)2026 actual
    First blooms 18 Apr 2026, full bloom 20 Apr 2026

    Observed by JMA at the city's official sample tree. The 2027 forecast isn't out yet: Japanese weather companies such as the Japan Weather Association usually publish the first one in January, and we add it then.

    Source: Japan Meteorological Agency

  • Autumn leaves: Onuma Quasi-National ParkTypical dates
    Usually late-Oct to early-Nov

    Usual peak viewing window for this spot.

    Source: Japan Weather Association (tenki.jp)

  • Autumn leaves: Koseien gardenTypical dates
    Usually late-Oct to early-Nov

    Usual peak viewing window for this spot.

    Source: Japan Weather Association (tenki.jp)

  • Snowy daysTypical dates
    Snow likely Oct–Apr (most in Jan: ~28 days)

    Average number of days with snowfall at Hakodate. About 91 cm of snow falls in an average Jan.

    Source: Hakodate weather-station normals (national weather service, via Wikipedia climate table)

Explore HakodateEvents, sights, food & souvenirs

Check event dates locally

Hakodate is a port city in southern Hokkaido, known for its night view from Mount Hakodate, a star-shaped fort, Western-style buildings and seafood.

Events in May
Goryōkaku cherry blossomsDate variesUsually late April to early May

Around 1,000 cherry trees bloom along the fort's moats.

Why go: Blooms later than in Honshu; Goryōkaku Tower gives an overhead view.

Where: Goryōkaku Park

Hakodate Goryōkaku FestivalDate variesUsually mid-May

A festival recalling the Boshin War battle at the fort, with a costumed parade.

Why go: Combines well with late cherry blossom in some years.

Where: Goryōkaku and surrounding streets

Coming up later

Hakodate Port FestivalDate variesUsually early August

The city's main summer festival, with fireworks and a large parade of dancers.

Why go: Hotels fill quickly during the festival.

Where: Port area and city streets

Hakodate Christmas FantasyDate variesUsually December

A large Christmas tree floats in the harbour with nightly illuminations and markets.

Why go: Cold evenings; dress warmly.

Where: Red Brick Warehouse area