The highest-scoring months in Sapporo are Jun, Jul, Aug and Sep.
Best months
Jun, Jul, Aug and Sep
Peak season
Jun, Jul, Aug and Sep
Off season
Feb, Nov and Dec
Temperature, rainfall and sunshine are measured. The visit score below is derived from those three (design spec §5.3)estimate.
Temp: -9.8°C – -2°C
Rain: 73mm
Sunshine: 5.9h/day
Visit score: 3.5/10
Temp: -9°C – -1.1°C
Rain: 81mm
Sunshine: 7h/day
Visit score: 2.9/10
Temp: -6.1°C – 3.7°C
Rain: 87mm
Sunshine: 7.9h/day
Visit score: 3.1/10
Temp: 3.2°C – 12.6°C
Rain: 104mm
Sunshine: 8.2h/day
Visit score: 3.2/10
Temp: 7.6°C – 17.5°C
Rain: 85mm
Sunshine: 9.8h/day
Visit score: 4.7/10
Temp: 13.6°C – 22.8°C
Rain: 119mm
Sunshine: 10.5h/day
Visit score: 8.2/10
Temp: 19.1°C – 27.2°C
Rain: 118mm
Sunshine: 10.4h/day
Visit score: 8.2/10
Temp: 20.6°C – 27.9°C
Rain: 154mm
Sunshine: 9.2h/day
Visit score: 7.3/10
Temp: 14.6°C – 23.4°C
Rain: 145mm
Sunshine: 8.7h/day
Visit score: 8.2/10
Temp: 6.8°C – 16.1°C
Rain: 102mm
Sunshine: 7.9h/day
Visit score: 4.6/10
Temp: 0.4°C – 8.6°C
Rain: 149mm
Sunshine: 6.2h/day
Visit score: 2.7/10
Temp: -6.3°C – 0.4°C
Rain: 86mm
Sunshine: 5.4h/day
Visit score: 2.5/10
The strongest months to visit Sapporo are June, July, August, and September, based on the highest visit scores of the year. June brings a high of 22.8C and low of 13.6C with 10.5 hours of sunshine a day, July reaches a high of 27.2C with 10.4 hours of sunshine, August is the warmest month at a high of 27.9C, and September cools slightly to a high of 23.4C while still offering 8.7 hours of sunshine daily.
These same peak months come with trade-offs: August is both the warmest month and one of the wettest, with 154mm of rain, and September is close behind at 145mm. Travelers who prefer lower rainfall might lean toward June or July within the peak window, while those avoiding both crowds and rain entirely may want to compare against the drier but much colder off-season months of February, November, and December, when rainfall ranges from 81mm to 149mm but temperatures fall well below freezing for highs in several cases.
March – May
Mild temperatures and blooming gardens. A great time for sightseeing with fewer crowds than summer.
Packing tips
June – August
Warmest months with the longest days. Peak tourist season in most destinations.
Packing tips
September – November
Cooling temperatures and autumn foliage. Shoulder season with good deals on accommodations.
Packing tips
December – February
Coldest months with shorter days. Holiday markets and winter activities in many cities.
Packing tips
AI-written interpretation reviewed against the data above — claude-sonnet-5, generated September 21, 2026. Every number on this page comes from a dataset named here; the formulas are public.