Kumamoto Weather in June
Thinking of visiting Kumamoto in June? Expect high temperatures reaching 26°C (79°F) during the day, dropping to 20°C (68°F) at night, and be prepared for the wettest month of the year.
Rainfall in Kumamoto in June
As part of the rainy season, Kumamoto sees around 19 days of rain in June, with an average of 436 mm (17 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Kumamoto in June
Expect highs of 26°C (79°F) in Kumamoto in June, with nights dropping to around 20°C (68°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 20°C (68°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Kumamoto in June
The area experiences a moderate amount of sunshine, with approximately 131 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.If you prefer dry days with pleasant temperatures, June may not be the ideal month to visit Kumamoto. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Kumamoto's climate page.
Kumamoto Temperature in June
Min Temperature
20°C (68°F)
Max Temperature
26°C (79°F)
Chance of Rain
64%
Precipitation
436 mm (17 in)
Rainy days
19 days
Humidity
76%
Sunshine
131 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kumamoto typically stay consistent throughout June, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 22°C (72°F).
Average temperatures in June
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Historical weather for Kumamoto in June
Browse day-by-day weather records for Kumamoto spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kumamoto historical weather extremes in June
The extremes listed below come from historical weather data collected in Kumamoto from 1976 through 2026.
- The warmest day in June was on June 20, 2004, with a maximum of 36°C (97°F).
- On June 9, 2026, Kumamoto saw its coldest June day with temperatures maxing out at 19°C (66°F).
- Nighttime temperatures dropped to 10°C (50°F) on June 2, 1981, marking the coldest June night on record.
Best Places in Japan in June
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in June →
perfect weather
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tolerable
unpleasant
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What to Wear in Kumamoto in June
Warm temperatures in June make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Kumamoto in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Kumamoto's climate page.
Temperature Rainfall Sunshine Humidity
See the full Kumamoto climate overview or explore weather in Japan.
