Wakayama Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wakayama.
Climate overview of Wakayama
Wakayama, Wakayama, Japan, sees big temperature differences between seasons, with August peaking at 31°C (88°F) and January dropping to 11°C (52°F).
The city has a wet climate, receiving around 1767 mm (70 in) of rainfall per year. Despite the high annual total, it has very warm summers and cold winters. June is the wettest month. The sunniest month is August, with 7.6 hours of sunshine per day on average.
Wakayama Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wakayama - and find the best time to visit.
Monthly Temperature in Wakayama
Visitors to Wakayama can expect significant temperature changes throughout the year. On average, daytime temperatures range from a very warm 31°C (88°F) in August to a chilly 11°C (52°F) in January.
Nighttime temperatures range from 25°C (77°F) in August to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wakayama
Wakayama is known for its substantial rainfall, with annual precipitation reaching 1767 mm (70 in). The seasons in Wakayama bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 250 mm (9.8 in) of precipitation. This rainfall is distributed across 18 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 95 mm (3.7 in) over 16 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Wakayama 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 Wakayama
In Wakayama, summer days are longer and more sunny, with daily sunshine hours peaking at 7.6 hours in August. As the darker season arrives, the brightness of the sun becomes less. February sees a soft sun for only 4.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Wakayama by Month
The relative humidity is high throughout the year in Wakayama.
The city experiences its highest humidity in July, reaching 76%. In March, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Wakayama
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: August
- Most sunshine: August
- Seasonal pattern: Very warm summers and cold winters
Frequently asked questions about the climate in Wakayama
What is the best time to visit Wakayama?
May typically offers the most optimal weather in Wakayama. In contrast, February tends to have less optimal conditions. Wakayama has very warm summers and cold winters.
What temperatures can I expect in Wakayama?
Daytime highs range from 11°C (52°F) in January to 31°C (88°F) in August. Nighttime lows range from 4°C (39°F) to 25°C (77°F). Temperatures vary considerably through the year.
How much rain does Wakayama get?
Annual rainfall is around 1767 mm (70 in). June is the wettest month with 250 mm (9.8 in), while January is the driest with 95 mm (3.7 in).
How sunny is Wakayama?
Wakayama receives around 2,027 hours of sunshine per year. August is the sunniest month with 228 hours, while February is the cloudiest with just 134 hours. Overall, Wakayama enjoys abundant sunshine.
Wakayama 3-Day Forecast
Wakayama on the map
Wakayama is highlighted - select any city to see its climate.
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