Sapporo weather by month
Sapporo's warmest month is August (average high 26.4°C) and coldest is January (-0.4°C). Monthly temperature, rain, sunshine and flower seasons from Japan Meteorological Agency 1991–2020 normals.
| Month | High / low | Rain | In bloom |
|---|---|---|---|
| January | -0° / -6°C (31° / 20°F) | 108 mm (18 days) | — |
| February | 0° / -6°C (33° / 21°F) | 92 mm (16 days) | — |
| March | 5° / -2°C (40° / 28°F) | 78 mm (14 days) | — |
| April | 12° / 3°C (53° / 38°F) | 55 mm (10 days) | Plum blossoms, Cherry blossoms |
| May | 18° / 9°C (64° / 48°F) | 56 mm (9 days) | Cherry blossoms |
| June | 22° / 13°C (71° / 56°F) | 60 mm (8 days) | — |
| July | 25° / 18°C (78° / 64°F) | 91 mm (8 days) | — |
| August | 26° / 19°C (80° / 66°F) | 127 mm (10 days) | — |
| September | 23° / 15°C (73° / 59°F) | 142 mm (10 days) | — |
| October | 16° / 8°C (62° / 46°F) | 110 mm (12 days) | Autumn colors |
| November | 9° / 2°C (48° / 35°F) | 114 mm (15 days) | Autumn colors |
| December | 2° / -4°C (36° / 25°F) | 115 mm (16 days) | — |
See Sapporo cherry blossom dates and autumn leaves.
Source: Japan Meteorological Agency climate normals 1991–2020 (processed by Japan Bloom Calendar). Averages, not a forecast.