Yanagawa Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Yanagawa.
Climate overview of Yanagawa
Temperatures in Yanagawa, Japan, vary greatly throughout the year. August is the hottest month at 32°C (90°F), while January is the coldest at 11°C (52°F).
The city has a wet climate, receiving around 2026 mm (80 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from May to September, with very warm summers and cold winters. June is the wettest month. Sunshine peaks in May, when the city sees around 6.8 hours of sunshine per day.
Yanagawa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Yanagawa - and find the best time to visit.
Monthly Temperature in Yanagawa
The climate in Yanagawa is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 32°C (90°F) in August to a chilly 11°C (52°F) in January.
Nighttime temperatures range from 25°C (77°F) in August to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Yanagawa
Yanagawa has a notably wet climate with abundant precipitation, recording 2026 mm (80 in) of rainfall per year. The seasons in Yanagawa bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 402 mm (16 in) of precipitation. This rainfall is distributed across 18 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 70 mm (2.8 in) over 19 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Yanagawa 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 Yanagawa
In Yanagawa, summer days are longer and more sunny, with daily sunshine hours peaking at 6.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 3.4 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Yanagawa by Month
The relative humidity is high throughout the year in Yanagawa.
The city experiences its highest humidity in July, reaching 76%. In January, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Yanagawa
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, October and November
- Warmest weather: July and August
- Most sunshine: May and August
- Fewest rainy days: May, October and November
- Wettest months: May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from May to September, with very warm summers and cold winters
Frequently asked questions about the climate in Yanagawa
What is the best time to visit Yanagawa?
April, May, October and November typically offer the most optimal weather in Yanagawa. In contrast, June, July and August tend to have less optimal conditions. Yanagawa has a distinct rainy season from May to September, with very warm summers and cold winters.
What temperatures can I expect in Yanagawa?
Daytime highs range from 11°C (52°F) in January to 32°C (90°F) in August. Nighttime lows range from 3°C (37°F) to 25°C (77°F). Temperatures vary considerably through the year.
How much rain does Yanagawa get?
Annual rainfall is around 2026 mm (80 in). June is the wettest month with 402 mm (16 in), while January is the driest with 70 mm (2.8 in).
How sunny is Yanagawa?
Yanagawa receives around 1,894 hours of sunshine per year. May is the sunniest month with 205 hours, while January is the cloudiest with just 103 hours.
Yanagawa 3-Day Forecast
Yanagawa on the map
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