Sapporo weather in May

Japan · long-term averages 2001–2025 · full-year climate of Sapporo

Average high
17 °C62 °F
Average low
7 °C44 °F
Precipitation
74 mm2.9 in
Daylight
14.6 h
Humidity
82%
Cloud amount
69%

In May, Sapporo has an average high of 17 °C62 °F and an average low of 7 °C44 °F, with about 74 mm2.9 in of precipitation. It is the 5th warmest month of the year and ranks 10th for precipitation.

How May compares with other months

Compared with April, May is 6.5 °C11.6 °F warmer on average and wetter by 12 mm0.5 in. Compared with June, May is 4.9 °C8.8 °F cooler on average and drier by 8 mm0.3 in. Daylight lasts about 14.6 hours around the middle of the month. Average relative humidity is 82% and the average cloud amount 69%.

Is May a good time to visit Sapporo?

May is not among the most comfortable months by our comfort score: it is cool (average high 17 °C62 °F) and it is fairly wet (74 mm2.9 in). The most comfortable months in Sapporo are June.

What to wear in May

For Sapporo in May, pack long sleeves, a sweater and a medium jacket.

May in nearby places

May averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Sapporo1762744742.9
Tomakomai1355745943.7
Asahikawa1762744692.7
Obihiro1763643883.5
Hakodate1559847853.3
Kitami1560642742.9
Kushiro13555411003.9
Aomori1762948893.5
Hirosaki19679481003.9

Nearby places that are more than 1 °C1.8 °F warmer in May: Aomori and Hirosaki; cooler: Tomakomai, Kitami and Kushiro.

Other months in Sapporo

  • January−2 °C28 °F / −8 °C17 °F
  • February−2 °C29 °F / −8 °C17 °F
  • March2 °C36 °F / −5 °C24 °F
  • April9 °C49 °F / 1 °C34 °F
  • May17 °C62 °F / 7 °C44 °F
  • June21 °C70 °F / 12 °C53 °F
  • July25 °C77 °F / 16 °C61 °F
  • August26 °C78 °F / 18 °C64 °F
  • September22 °C71 °F / 14 °C56 °F
  • October15 °C59 °F / 7 °C44 °F
  • November7 °C44 °F / 1 °C33 °F
  • December0 °C31 °F / −6 °C22 °F

Frequently asked questions

How warm is Sapporo in May?

In May the average high in Sapporo is 17 °C (62 °F) and the average low is 7 °C (44 °F).

Does it rain a lot in Sapporo in May?

On average about 74 mm (2.9 in) of precipitation falls in May; it ranks 10th of the 12 months.

Is May the warmest month in Sapporo?

No. The warmest month in Sapporo is August, with an average high of 26 °C (78 °F). The coldest month is February, with an average low of -8 °C (17 °F).

How long is the day in Sapporo in May?

In the middle of May the day in Sapporo lasts about 14.6 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.

How humid is Sapporo in May?

The average relative humidity in May is about 82%. This is a long-term average for the whole day.

How cloudy is Sapporo in May?

On average about 69% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 279 m, while Sapporo lies at about 26 m. Temperatures on this page were therefore adjusted by +1.6 °C3 °F using the standard lapse rate of 6.5 °C per 1,000 m.