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. 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

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

Data from: Nagasaki, Japan (39 KM, 24 Miles).

Daily hours of sunshine

Data from: Nagasaki, Japan (39 KM, 24 Miles).

Humidity in Amakusa by Month

Best Time to Visit Amakusa

During October and November, Amakusa experiences its most favorable weather, with temperatures between 20°C (67°F) and 24°C (76°F). These mild conditions make it an excellent time for a visit.

The weather does bring rainfall during this period, between 109 mm (4.3 in) and 114 mm (4.5 in).

Plan accordingly for April, May, June, July, August and September, when conditions bring the heaviest precipitation.

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

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.

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 3-Day Forecast

Amakusa on the map

Amakusa is highlighted — select any city to see its climate.

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