Sapporo weather in August
In August, Sapporo has an average high of 26 °C78 °F and an average low of 18 °C64 °F, with about 160 mm6.3 in of precipitation. August is the warmest month of the year and the wettest.
How August compares with other months
Compared with July, August is 1.2 °C2.1 °F warmer on average and wetter by 39 mm1.5 in. Compared with September, August is 4 °C7.2 °F warmer on average and wetter by 23 mm0.9 in. Daylight lasts about 13.9 hours around the middle of the month. Average relative humidity is 86% and the average cloud amount 74%.
Is August a good time to visit Sapporo?
August is not among the most comfortable months by our comfort score: it is fairly wet (160 mm6.3 in) and it is humid (86%). The most comfortable months in Sapporo are June.
What to wear in August
For Sapporo in August, pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
August in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Sapporo | 2678 | 1864 | 1606.3 |
| Tomakomai | 2373 | 1966 | 1726.8 |
| Asahikawa | 2678 | 1763 | 1465.8 |
| Obihiro | 2679 | 1762 | 1495.9 |
| Hakodate | 2577 | 1967 | 1516.0 |
| Kitami | 2577 | 1762 | 1375.4 |
| Kushiro | 2272 | 1661 | 1395.5 |
| Aomori | 2679 | 2068 | 1616.3 |
| Hirosaki | 2883 | 1967 | 1706.7 |
Nearby places that are more than 1 °C1.8 °F warmer in August: Aomori and Hirosaki; cooler: Kushiro.
Other months in Sapporo
- January−2 °C28 °F / −8 °C17 °F
- February−2 °C29 °F / −8 °C17 °F
- March2 °C36 °F / −5 °C24 °F
- April9 °C49 °F / 1 °C34 °F
- May17 °C62 °F / 7 °C44 °F
- June21 °C70 °F / 12 °C53 °F
- July25 °C77 °F / 16 °C61 °F
- August26 °C78 °F / 18 °C64 °F
- September22 °C71 °F / 14 °C56 °F
- October15 °C59 °F / 7 °C44 °F
- November7 °C44 °F / 1 °C33 °F
- December0 °C31 °F / −6 °C22 °F
Frequently asked questions
How warm is Sapporo in August?
In August the average high in Sapporo is 26 °C (78 °F) and the average low is 18 °C (64 °F).
Does it rain a lot in Sapporo in August?
On average about 160 mm (6.3 in) of precipitation falls in August; it ranks 1st of the 12 months.
Is August the warmest month in Sapporo?
Yes. August is the warmest month in Sapporo. The coldest month is February, with an average low of -8 °C (17 °F).
How long is the day in Sapporo in August?
In the middle of August the day in Sapporo lasts about 13.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Sapporo in August?
The average relative humidity in August is about 86%. Combined with warm days, it can feel muggy.
How cloudy is Sapporo in August?
On average about 74% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 279 m, while Sapporo lies at about 26 m. Temperatures on this page were therefore adjusted by +1.6 °C3 °F using the standard lapse rate of 6.5 °C per 1,000 m.