The most comfortable time to visit Sapporo is from mid August to September, and again from June to mid July. For walking, go from May to June. Sunbathing weather is not what it offers.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
Sapporo never quite rates Good for sun. It comes closest in early August, at 53, mostly because it is cloudy. Avoid late September to early June for this: it falls to 0, mostly because it is too cool. The clearest skies come in April, when the sky is typically 69% covered at midday (often cloudy).
The being outside season here runs from mid August to September, with a second spell from June to mid July. It peaks in late September, at 81. The weakest stretch is from November to early April, when it drops to 0, mostly because it is too cold.
For walking, go from May to June, with a second spell from mid September to October. It peaks in late September, at 81. Avoid December to mid March for this: it falls to 0, mostly because it is too cold.
For snow, go from mid December to February. It peaks in mid January, at 63. Avoid May to October for this: it falls to 0, mostly because it is too mild. Snow here is a proxy: cold enough for snow to hold, with precipitation likely. It is not measured snow depth.
The year, measured
The average temperature in Sapporo over the whole year is 9°C. August is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C. The rainy (wet) season in Sapporo runs from October to February, peaking in December with a 31% chance of rain on a given day. The dry season is March to September; July is the driest month, at 12%. Winds in Sapporo are highest in April, averaging 4.1 m/s (15 km/h), and lightest in January, at 3.3 m/s (12 km/h). The prevailing wind is from the N. The clearest skies in Sapporo come in April, when the sky is typically 68% covered; December is the cloudiest month, at 75%.
Month by month Sapporo climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | -2°C | -6°C | -8°C | 30% | 74% | 3.3 m/s | 0 | 0 | 0 |
| February | -1°C | -6°C | -7°C | 29% | 74% | 3.5 m/s | 0 | 0 | 0 |
| March | 4°C | -1°C | -2°C | 19% | 69% | 3.8 m/s | 0 | 0 | 6 |
| April | 11°C | 5°C | 5°C | 15% | 68% | 4.1 m/s | 6 | 0 | 39 |
| May | 17°C | 11°C | 13°C | 13% | 69% | 4.0 m/s | 38 | 2 | 73 |
| June | 20°C | 15°C | 18°C | 16% | 74% | 3.8 m/s | 65 | 12 | 70 |
| July | 25°C | 20°C | 25°C | 12% | 72% | 3.5 m/s | 63 | 42 | 34 |
| August | 25°C | 21°C | 26°C | 19% | 73% | 3.4 m/s | 59 | 46 | 28 |
| September | 22°C | 16°C | 21°C | 15% | 69% | 3.3 m/s | 79 | 18 | 63 |
| October | 15°C | 9°C | 12°C | 23% | 68% | 3.3 m/s | 30 | 1 | 70 |
| November | 7°C | 3°C | 2°C | 29% | 74% | 3.5 m/s | 1 | 0 | 25 |
| December | -0°C | -3°C | -6°C | 31% | 75% | 3.4 m/s | 0 | 0 | 2 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Sapporo weather by season
Year round, Sapporo has days of about -2°C at their warmest in January, its coolest month, and 25°C in August, its warmest; the coolest hours of the day run from -6°C to 21°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around December and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Sapporo weather in winterDecember to February
Winter in Sapporo has typical daily highs of about -1°C and lows of about -5°C, with a 30% chance of rain on a given day.
Sapporo weather in springMarch to May
Spring in Sapporo has typical daily highs of about 10°C and lows of about 5°C, with a 15% chance of rain on a given day.
Sapporo weather in summerJune to August
Summer in Sapporo has typical daily highs of about 23°C and lows of about 18°C, with a 16% chance of rain on a given day.
Sapporo weather in autumnSeptember to November
Autumn in Sapporo has typical daily highs of about 15°C and lows of about 9°C, with a 22% chance of rain on a given day.
When is the rainy season in Sapporo?
The rainy (wet) season in Sapporo runs from October to February, peaking in December with a 31% chance of rain on a given day. The dry season is March to September; July is the driest month, at 12%.
What time of year is Sapporo windiest?
Winds in Sapporo are highest in April, averaging 4.1 m/s (15 km/h), and lightest in January, at 3.3 m/s (12 km/h). The prevailing wind is from the N.
What is the average temperature in Sapporo year round?
The average temperature in Sapporo over the whole year is 9°C. August is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C.
Where to go instead in early January, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.