Weather in Sapporo
Live weather and 7-day forecast for Sapporo, Japan, followed by what to expect in each month of the year.
Sunrise 05:58 Sunset 16:42 Daylight 10h 44m Sun times →
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Forecast data from Open-Meteo
Climate in Sapporo: month by month
Averaged over 2023–2025, the warmest month in Sapporo is August, with highs around 28 °C (82 °F) and lows around 21 °C (69 °F); the coolest is January, with highs around -2 °C (28 °F) and lows around -10 °C (13 °F). Average lows fall below freezing in December–March.
Sapporo gets about 1,279 mm (50 in) of precipitation a year. The wettest month is September (146 mm over about 11 days) and the driest is December (66 mm).
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | -2° | -10° | 72 | 15 | 9h 20m |
| February | -1° | -9° | 69 | 18 | 10h 31m |
| March | 4° | -5° | 85 | 13 | 11h 52m |
| April | 13° | 4° | 108 | 12 | 13h 22m |
| May | 18° | 8° | 83 | 12 | 14h 38m |
| June | 23° | 14° | 125 | 13 | 15h 21m |
| July | 27° | 19° | 145 | 14 | 15h 4m |
| August | 28° | 21° | 140 | 17 | 13h 59m |
| September | 24° | 15° | 146 | 11 | 12h 33m |
| October | 16° | 7° | 118 | 14 | 11h 7m |
| November | 9° | 1° | 122 | 14 | 9h 46m |
| December | 1° | -7° | 66 | 15 | 9h 2m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Sapporo's coordinates (model elevation 26 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Sapporo
What is the hottest month in Sapporo?
August, with average highs of 28 °C (82 °F) and lows of 21 °C (69 °F) over 2023–2025. The coolest month is January, averaging -2 °C (28 °F) by day and -10 °C (13 °F) at night.
What is the rainiest month in Sapporo?
September, with about 146 mm of precipitation on roughly 11 days. The driest month is December (66 mm), and the yearly total is around 1,279 mm.
When is the weather mildest in Sapporo?
Going by the averages, May–June and September are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. September is the month most likely to bring rain.
More about Sapporo
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More for Sapporo
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About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Sapporo local time (Asia/Tokyo).