Hakodate weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Fair
Best time to visit: June – September
What is the weather like in Hakodate in May?
In May, Hakodate is cool: daytime highs average 14 °C, and nights cool down to about 8 °C. The sea averages 11.1 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 100 mm in total. All in all, May is a so-so month for a holiday in Hakodate.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 31 min04:18 – 18:48
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %62 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 30 %42 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Hakodate in May: quick answers
Is Hakodate hot in May?
No. In May, Hakodate is cool: daytime highs average 14 °C and nights drop to about 8 °C.
Can you swim in Hakodate in May?
Only if you don't mind cold water: in May the sea averages just 11.1 °C. Comfortable swimming is possible from August to September.
Does it rain much in Hakodate in May?
Rain is frequent, with about 12 rainy days and 100 mm in total.
Hakodate month by month
The whole year in HakodateAll destinations: JapanWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences