Minamioguni Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Minamioguni.
Climate overview of Minamioguni
The climate in Minamioguni, Kumamoto, Japan, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in August to 9°C (48°F) in January.
With around 1958 mm (77 in) of annual rain/snowfall, Minamioguni has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from June to September, with very warm summers and cold winters. The wettest month is June. The sunniest month is August, with 6.9 hours of sunshine per day on average.
Minamioguni Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Minamioguni - and find the best time to visit.
Monthly Temperature in Minamioguni
In Minamioguni, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 31°C (88°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 22°C (72°F) in August to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Minamioguni
Minamioguni experiences significant rain/snowfall throughout the year, averaging 1958 mm (77 in) of precipitation annually. Minamioguni can be quite wet during June, receiving approximately 399 mm (16 in) of precipitation over 19 rainy days.
In contrast, during the driest month (December), you will experience much drier conditions, with 72 mm (2.8 in) of precipitation spread across 16 rainy days. For more details, please visit our Minamioguni 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 Minamioguni
Minamioguni 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 Minamioguni by Month
The relative humidity is high throughout the year in Minamioguni.
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 Minamioguni
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 and October
- Warmest weather: July and August
- Most sunshine: August
- Fewest rainy days: October and November
- Wettest months: May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from June to September, with very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Minamioguni
What is the best time to visit Minamioguni?
April, May and October typically offer the most optimal weather in Minamioguni. In contrast, January, February, June and July tend to have less optimal conditions. Minamioguni has a distinct rainy season from June to September, with very warm summers and cold winters.
What temperatures can I expect in Minamioguni?
Daytime highs range from 9°C (48°F) in January to 31°C (88°F) in August. Nighttime lows range from -1°C (30°F) to 22°C (72°F). Temperatures vary considerably through the year.
How much rain does Minamioguni get?
Annual rainfall is around 1958 mm (77 in). June is the wettest month with 399 mm (16 in), while December is the driest with 72 mm (2.8 in).
How sunny is Minamioguni?
Minamioguni 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, Minamioguni enjoys abundant sunshine.
Minamioguni 3-Day Forecast
Minamioguni on the map
Minamioguni is highlighted - select any city to see its climate.
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