Amakusa Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Amakusa.
Climate overview of Amakusa
Amakusa, Kumamoto, Japan, sees big temperature differences between seasons, with August peaking at 31°C (88°F) and January dropping to 12°C (54°F).
Rainfall is high, totalling around 2294 mm (90 in) per year. June is the wettest month and January the driest. The city also experiences a distinct rainy season from April to September, with very warm summers and mild winters. The most sunshine falls in August, with an average of 7.0 hours of daily sunshine.
Amakusa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Amakusa - and find the best time to visit.
Monthly Temperature in Amakusa
Visitors to Amakusa can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 31°C (88°F) in August, the warmest time of the year, to a moderate 12°C (54°F) during cooler months like January.
At night, you can expect temperatures ranging from 26°C (79°F) in August to around 8°C (46°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Amakusa
Amakusa is known for its substantial rainfall, with annual precipitation reaching 2294 mm (90 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives heavy rainfall, averaging 478 mm (19 in) of precipitation, recorded across 19 rainy days. In contrast, the driest month January brings less rainfall, with 97 mm (3.8 in) over 20 rainy days. For more details, please visit our Amakusa 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 Amakusa
Seasonal changes in sunshine hours are quite dramatic in Amakusa. While August receives considerable daily sunshine with up to 7.0 hours, January marks the darkest time of the year, where sunshine is scarce with only 3.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Amakusa by Month
The relative humidity is high throughout the year in Amakusa.
The city experiences its highest humidity in June, reaching 80%. In February, 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 Amakusa
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: October and November
- Warmest weather: July and August
- Most sunshine: August
- Fewest rainy days: October and November
- Wettest months: May, June and July, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from April to September, with very warm summers and mild winters
Frequently asked questions about the climate in Amakusa
What is the best time to visit Amakusa?
October and November typically offer the most optimal weather in Amakusa. In contrast, February, June, July and August tend to have less optimal conditions. Amakusa has a distinct rainy season from April to September, with very warm summers and mild winters.
What temperatures can I expect in Amakusa?
Daytime highs range from 12°C (54°F) in January to 31°C (88°F) in August. Nighttime lows range from 8°C (46°F) to 26°C (79°F). Temperatures vary considerably through the year.
How much rain does Amakusa get?
Annual rainfall is around 2294 mm (90 in). June is the wettest month with 478 mm (19 in), while January is the driest with 97 mm (3.8 in).
How sunny is Amakusa?
Amakusa receives around 1,876 hours of sunshine per year. August is the sunniest month with 209 hours, while January is the cloudiest with just 104 hours.
Amakusa 3-Day Forecast
Amakusa on the map
Amakusa is highlighted - select any city to see its climate.
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