Otaru Climate: Weather by Month and Best Time to Visit
Best months for Otaru: July, August, June, September.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -6°C | 98 mm | 21 | – | – | 2.1 |
| February | -2°C | -6°C | 80 mm | 17 | – | – | 2.8 |
| March | 2°C | -3°C | 75 mm | 15 | – | – | 3.5 |
| April | 7°C | 2°C | 66 mm | 11 | – | – | 5.1 |
| May | 12°C | 7°C | 84 mm | 12 | – | – | 5.9 |
| June | 17°C | 12°C | 77 mm | 11 | – | – | 6.7 |
| July | 21°C | 17°C | 127 mm | 13 | – | – | 6.9 |
| August | 23°C | 19°C | 162 mm | 14 | – | – | 6.9 |
| September | 20°C | 16°C | 149 mm | 14 | – | – | 6.5 |
| October | 14°C | 9°C | 116 mm | 15 | – | – | 5.5 |
| November | 6°C | 2°C | 129 mm | 19 | – | – | 3.8 |
| December | 0°C | -4°C | 125 mm | 22 | – | – | 2.1 |