Chase the autumn leaves in Japan
Japan is one of these cases which turns into a gold, yellow and orange fairy tale starting from September. And we can honestly say: We cannot imagine a more beautiful season to visit Japan.
Suwa Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Suwa.
–
Climate overview of Suwa
Suwa, Nagano Prefecture, Japan, sees big temperature differences between seasons, with August peaking at 28°C (82°F) and January dropping to 3°C (37°F).
With around 1607 mm (63 in) of annual rain/snowfall, Suwa has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has warm summers and cold winters. The wettest month is July. The most sunshine falls in January, with an average of 6.8 hours of daily sunshine.
Suwa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Suwa - and find the best time to visit.
Monthly Temperature in Suwa
Visitors to Suwa can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 28°C (82°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 3°C (37°F).
At night, temperatures range from around 18°C (64°F) in August to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Suwa
Suwa is known for its substantial rain/snowfall, with annual precipitation reaching 1607 mm (63 in). Suwa can be quite wet during July, receiving approximately 196 mm (7.7 in) of precipitation over 22 rainy days.
In contrast, during the driest month (December), you will experience much drier conditions, with 82 mm (3.2 in) of precipitation spread across 16 snowy/rainy days. For more details, please visit our Suwa Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Suwa
Suwa experiences moderate variation in sunshine hours across the seasons. With 6.8 hours daily sunshine in January, it dips to 4.7 hours in September, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Kofu, Japan (59 KM, 37 Miles).
Daily hours of sunshine
Data from: Kofu, Japan (59 KM, 37 Miles).
Humidity in Suwa by Month
The relative humidity is high throughout the year in Suwa.
The city experiences its highest humidity in July, reaching 73%. In February, the humidity drops to its lowest level at 54%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Kofu, Japan (59 KM, 37 Miles).
Best Time to Visit Suwa
Conditions in Suwa are generally most comfortable in May, August and September. They are typically least comfortable in January, February, March and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
wet
Apr
mixed
May
very good
Jun
good
Jul
good
Aug
very good
Sep
very good
Oct
good
Nov
mixed
Dec
cold
- Best overall: May, August and September
- Warmest weather: July and August
- Most sunshine: January, March, April, May, August and December
- Fewer rainy days: April, May, October, November and December
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Suwa
What is the best time to visit Suwa?
May, August and September typically offer the most optimal weather in Suwa. In contrast, January, February, March and December tend to have less optimal conditions. Suwa has warm summers and cold winters.
What temperatures can I expect in Suwa?
Daytime highs range from 3°C (37°F) in January to 28°C (82°F) in August. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Suwa get?
Annual rainfall is around 1607 mm (63 in). July is the wettest month with 196 mm (7.7 in), while December is the driest with 82 mm (3.2 in).
How sunny is Suwa?
Suwa receives around 2,178 hours of sunshine per year. January is the sunniest month with 204 hours, while September is the cloudiest with just 142 hours. Overall, Suwa enjoys abundant sunshine.
Suwa 3-Day Forecast
Suwa on the map
Suwa is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Naha
28°C (82°F) Osaka
24°C (75°F) Kyoto23°C (73°F) Tokyo23°C (73°F) Hakone21°C (70°F) Hakuba17°C (63°F) Sapporo16°C (61°F) Niseko15°C (59°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Chase the autumn leaves in Japan
Walk the 88 temple circuit
We recommend walking the 88 temple circuit from April til October. Although June, July and August can be a bit wet, hot and humid.
The famous bamboo forests of Arashiyama
The famous bamboo forests of Arashiyama lie just outside the city center of Kyoto and is unique in the world. If you look at photos of this bamboo forest, it looks like you have landed in a fairy-tale world.
10 reasons why you should visit Japan in winter
Here are 10 reasons why you should plan a winter trip to Japan. During this period, popular sights are less busy and prices for flights and hotels much cheaper.