The biggest temperature swing occurs between November and December, as typical highs shift from 7.4°C / 45.3°F to -0.3°C / 31.5°F (about 7.7°C / 13.8°F).
| Month | Low Temperature | High Temperature | Category |
|---|---|---|---|
| January | -9.8°C | -3.3°C | COLD |
| February | -9.3°C | -2.3°C | COLD |
| March | -5.6°C | 2.2°C | COLD |
| April | 0.2°C | 9.8°C | COOL |
| May | 6.7°C | 16°C | MILD |
| June | 11.9°C | 20°C | MILD |
| July | 16.8°C | 23.9°C | WARM |
| August | 18.3°C | 24.7°C | WARM |
| September | 14.1°C | 21.1°C | MILD |
| October | 7.3°C | 14.8°C | COOL |
| November | 0.7°C | 7.4°C | COLD |
| December | -6.1°C | -0.3°C | COLD |
August has the warmest typical feels-like highs (27.1°C / 80.8°F), while January is coolest (-8.5°C / 16.8°F).
| Month | Low Feels Like | High Feels Like | Category |
|---|---|---|---|
| January | -15.5°C | -8.5°C | COLD |
| February | -14.9°C | -7.3°C | COLD |
| March | -10.7°C | -2.1°C | COLD |
| April | -3.9°C | 6.7°C | COLD |
| May | 3.7°C | 14.5°C | COOL |
| June | 10.5°C | 20.5°C | MILD |
| July | 17.2°C | 26.2°C | WARM |
| August | 19.3°C | 27.1°C | WARM |
| September | 13.5°C | 21.3°C | MILD |
| October | 4.2°C | 12.3°C | COOL |
| November | -4°C | 3.4°C | COLD |
| December | -11.7°C | -5.1°C | COLD |
August is wettest at 167.8 mm / 6.6 inches, while February is driest at 66.1 mm / 2.6 inches.
| Month | Baseline | Rainfall | Category |
|---|---|---|---|
| January | 25.4 mm | 81.1 mm | MODERATE |
| February | 25.4 mm | 66.1 mm | MODERATE |
| March | 25.4 mm | 66.9 mm | MODERATE |
| April | 25.4 mm | 68.1 mm | MODERATE |
| May | 25.4 mm | 90.8 mm | MODERATE |
| June | 25.4 mm | 83 mm | MODERATE |
| July | 25.4 mm | 129.6 mm | WET |
| August | 25.4 mm | 167.8 mm | WET |
| September | 25.4 mm | 138.4 mm | WET |
| October | 25.4 mm | 106.8 mm | MODERATE |
| November | 25.4 mm | 110.3 mm | MODERATE |
| December | 25.4 mm | 94.6 mm | MODERATE |
June has the strongest peak UV (around index 7.7).
| Month | Baseline | UV Index | Category |
|---|---|---|---|
| January | 0 | 3 | MODERATE |
| February | 0 | 4.6 | MODERATE |
| March | 0 | 5.7 | MODERATE |
| April | 0 | 6.9 | HIGH |
| May | 0 | 7.5 | HIGH |
| June | 0 | 7.7 | HIGH |
| July | 0 | 7.6 | HIGH |
| August | 0 | 7.3 | HIGH |
| September | 0 | 6.3 | HIGH |
| October | 0 | 4.7 | MODERATE |
| November | 0 | 3.2 | MODERATE |
| December | 0 | 2.4 | LOW-MOD |
Daylight ranges from 9.1h in December to 15.3h in June.
| Month | Baseline | Daylight Hours | Category |
|---|---|---|---|
| January | 0h | 9.4h | SHORT |
| February | 0h | 10.5h | BALANCED |
| March | 0h | 11.9h | BALANCED |
| April | 0h | 13.4h | LONG |
| May | 0h | 14.7h | LONG |
| June | 0h | 15.3h | LONG |
| July | 0h | 15h | LONG |
| August | 0h | 13.9h | LONG |
| September | 0h | 12.5h | BALANCED |
| October | 0h | 11h | BALANCED |
| November | 0h | 9.8h | SHORT |
| December | 0h | 9.1h | SHORT |
July is most humid (84.9%), while April is driest (75.4%).
| Month | Baseline | Humidity (avg) | Category |
|---|---|---|---|
| January | 72% | 78.5% | MUGGY |
| February | 72% | 77.6% | MUGGY |
| March | 72% | 78% | MUGGY |
| April | 72% | 75.4% | MUGGY |
| May | 72% | 78% | MUGGY |
| June | 72% | 82.6% | MUGGY |
| July | 72% | 84.9% | MUGGY |
| August | 72% | 84.9% | MUGGY |
| September | 72% | 81.5% | MUGGY |
| October | 72% | 77.9% | MUGGY |
| November | 72% | 76.6% | MUGGY |
| December | 72% | 77.5% | MUGGY |
December has the strongest typical average wind (16.4 km/h / 10.2 mph), while July is calmest (11.1 km/h / 6.9 mph).
| Month | Baseline | Wind (avg) | Category |
|---|---|---|---|
| January | 9 km/h | 16 km/h | CALM |
| February | 9 km/h | 15.8 km/h | CALM |
| March | 9 km/h | 15.4 km/h | CALM |
| April | 9 km/h | 14.2 km/h | CALM |
| May | 9 km/h | 13.6 km/h | CALM |
| June | 9 km/h | 11.9 km/h | CALM |
| July | 9 km/h | 11.1 km/h | CALM |
| August | 9 km/h | 11.2 km/h | CALM |
| September | 9 km/h | 12.2 km/h | CALM |
| October | 9 km/h | 14.6 km/h | CALM |
| November | 9 km/h | 16.3 km/h | CALM |
| December | 9 km/h | 16.4 km/h | CALM |
November is windiest by P95 gust signal (65.5 km/h / 40.7 mph).
| Month | Baseline | Wind (gusts) | Category |
|---|---|---|---|
| January | 0 km/h | 60.5 km/h | VERY WINDY |
| February | 0 km/h | 61.8 km/h | VERY WINDY |
| March | 0 km/h | 61.6 km/h | VERY WINDY |
| April | 0 km/h | 60.1 km/h | VERY WINDY |
| May | 0 km/h | 56.5 km/h | VERY WINDY |
| June | 0 km/h | 49.7 km/h | WINDY |
| July | 0 km/h | 48.6 km/h | WINDY |
| August | 0 km/h | 49.3 km/h | WINDY |
| September | 0 km/h | 53.6 km/h | VERY WINDY |
| October | 0 km/h | 63.4 km/h | VERY WINDY |
| November | 0 km/h | 65.5 km/h | VERY WINDY |
| December | 0 km/h | 63 km/h | VERY WINDY |
January has the most rain days (~22.4), while June has the fewest (~13.1). Rain days count the average number of days in a month with measurable rain (about 0.1 mm or more).
| Month | Baseline | Rain Days | Category |
|---|---|---|---|
| January | 9.4 days | 22.4 days | VERY FREQUENT |
| February | 9.4 days | 19.3 days | VERY FREQUENT |
| March | 9.4 days | 16.7 days | VERY FREQUENT |
| April | 9.4 days | 13.3 days | FREQUENT |
| May | 9.4 days | 14.5 days | FREQUENT |
| June | 9.4 days | 13.1 days | FREQUENT |
| July | 9.4 days | 15.1 days | VERY FREQUENT |
| August | 9.4 days | 16.6 days | VERY FREQUENT |
| September | 9.4 days | 15.8 days | VERY FREQUENT |
| October | 9.4 days | 16.5 days | VERY FREQUENT |
| November | 9.4 days | 19.7 days | VERY FREQUENT |
| December | 9.4 days | 22.4 days | VERY FREQUENT |
July has the most heavy rain/washout risk days (~7). Heavy rain days are the average number of days likely to bring stronger downpours that can disrupt outdoor plans.
| Month | Baseline | Heavy Rain Days | Category |
|---|---|---|---|
| January | 0 days | 5 days | FREQUENT |
| February | 0 days | 4 days | FREQUENT |
| March | 0 days | 4 days | FREQUENT |
| April | 0 days | 4 days | FREQUENT |
| May | 0 days | 6 days | PERSISTENT |
| June | 0 days | 5 days | FREQUENT |
| July | 0 days | 7 days | PERSISTENT |
| August | 0 days | 7 days | PERSISTENT |
| September | 0 days | 7 days | PERSISTENT |
| October | 0 days | 7 days | PERSISTENT |
| November | 0 days | 7 days | PERSISTENT |
| December | 0 days | 6 days | PERSISTENT |
January has the highest heat-risk day count (~0 days). Heat days are the average number of days that exceed our location-specific heat-risk threshold.
| Month | Baseline | Heat Days | Category |
|---|---|---|---|
| January | 0 days | 0 days | LOW |
| February | 0 days | 0 days | LOW |
| March | 0 days | 0 days | LOW |
| April | 0 days | 0 days | LOW |
| May | 0 days | 0 days | LOW |
| June | 0 days | 0 days | LOW |
| July | 0 days | 0 days | LOW |
| August | 0 days | 0 days | LOW |
| September | 0 days | 0 days | LOW |
| October | 0 days | 0 days | LOW |
| November | 0 days | 0 days | LOW |
| December | 0 days | 0 days | LOW |
Daylight varies from 9.1 hours in December (winter) to 15.3 hours in June (summer), which is a difference of 6.2 hours.
Northern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:
| Ranking Goal | #1 | #2 | #3 | #4 |
|---|---|---|---|---|
| Lowest rain risk | Feb 4 risk days | Mar 4 risk days | Apr 4 risk days | Jan 5 risk days |
| Lowest heatwave risk | Jan 0 risk days | Feb 0 risk days | Mar 0 risk days | Apr 0 risk days |
| Lowest cold risk | Jul 0 risk days | Aug 0 risk days | Sep 3 risk days | Jun 8 risk days |
| Lowest wind disruption risk | Jul 49 km/h | Aug 49 km/h | Jun 50 km/h | Sep 54 km/h |
| Most comfortable evenings | Jul 71 / 100 | Aug 69 / 100 | Sep 61 / 100 | Jun 52 / 100 |
| Best outdoor reliability | Apr 86 / 100 | Mar 85 / 100 | Feb 84 / 100 | Jun 83 / 100 |
Click any month for detailed weather information and packing advice.
Get personalized month rankings based on weather comfort, outdoor activity suitability, and seasonal conditions.
View Best Time to VisitThe best months to visit Sapporo depend on your preferences. For warm weather, August is typically the warmest month. For dry conditions, February, March, April tend to have the least rainfall. Consider your priorities, and whether you prefer warmer temperatures, drier weather, or longer daylight hours.
August is typically the warmest month in Sapporo, with average high temperatures reaching around 25°C (77°F). This is peak summer weather, ideal for outdoor activities and sightseeing.
January is usually the coldest month, with average low temperatures dropping to around -10°C (14°F). Pack warm layers if visiting during this time, especially for evening activities.
August typically sees the most rainfall in Sapporo, averaging around 168mm (6.6 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.
February is typically the driest month, with average rainfall of just 66mm (2.6 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.
Temperatures in Sapporo range from average lows of 4°C (39°F) to highs of 11°C (52°F). This variation means you'll want to pack differently depending on when you visit, as layers are key for adapting to the seasonal changes.
Yes, sun protection is important in Sapporo. UV levels can reach 8 during peak months, which is considered high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.