Tamana Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tamana.
Climate overview of Tamana
Temperatures in Tamana, Kumamoto, 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).
With around 2047 mm (81 in) of annual rainfall, Tamana has a notably wet climate. However, this rainfall is not evenly distributed — the city has a distinct rainy season from May to July. The wettest month is June. Sunshine peaks in August, when the city sees around 6.9 hours of sunshine per day.
Tamana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tamana — and find the best time to visit.
Monthly Temperature in Tamana
The climate in Tamana is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a very warm 32°C (90°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 11°C (52°F).
At night, temperatures range from around 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 Tamana
Tamana has a notably wet climate with abundant precipitation, recording 2047 mm (81 in) of rainfall per year. Tamana can be quite wet during June, receiving approximately 434 mm (17 in) of precipitation over 19 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 77 mm (3 in) of precipitation spread across 18 rainy days days. For more details, please visit our Tamana 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 Tamana
Tamana experiences moderate variation in sunshine hours across the seasons. With 6.9 hours daily sunshine in August, it dips to 4.4 hours in June, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Tamana by Month
The relative humidity is high throughout the year in Tamana.
The city experiences its highest humidity in June, reaching 76%. In April, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Tamana
The wettest months are April, May, June, July, August and September, when precipitation is at its highest. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Tamana
What is the best time to visit Tamana?
April, May, September, October and November typically offer the most optimal weather in Tamana. In contrast, February, June and July tend to have less optimal conditions. Tamana has a distinct rainy season from May to July.
What temperatures can I expect in Tamana?
Daytime highs range from 11°C (52°F) in January to 32°C (90°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 Tamana get?
Annual rainfall is around 2047 mm (81 in). June is the wettest month with 434 mm (17 in), while January is the driest with 77 mm (3 in).
How sunny is Tamana?
Tamana receives around 2,014 hours of sunshine per year. August is the sunniest month with 208 hours, while June is the cloudiest with just 131 hours. Overall, Tamana enjoys abundant sunshine.
Tamana 3-Day Forecast
Tamana 3-Day Forecast
Tamana on the map
Tamana is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Osaka
32°C (90°F) Tokyo30°C (86°F) Naha
30°C (86°F) Kyoto31°C (88°F) Hakone28°C (82°F) Hakuba26°C (79°F) Sapporo24°C (75°F) Niseko24°C (75°F) 
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