Climate averages 1991–2020
Honmachi weather
in June.
A warm, very wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Honmachi: daytime highs average 26.2°C and nights cool to about 20.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 428 mm of rain on roughly 18 days, which makes June a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 15 min on an average June day.
The nearest other city in this atlas is Kumamoto (35 km away). In June its highs average 25.7°C, 0.5°C cooler than Honmachi, with 403 mm of rain.
Among the 303 cities listed in Japan, Honmachi ranks joint 15th of 303 for the warmest June highs and 294th of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Honmachi is 1.8°C warmer than that mean.
From June to July, average highs rise by 3.4°C to 29.5°C, and monthly rainfall falls from 428 mm to 347 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Honmachi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.6°C3.2°C | 3.2°C | 73 | 9.4 | 10.310 h |
| February | 11.1°C3.8°C | 3.8°C | 92 | 10.0 | 11.011 h |
| March | 14.6°C6.9°C | 6.9°C | 133 | 12.4 | 12.012 h |
| April | 19.5°C11.4°C | 11.4°C | 151 | 11.8 | 13.013 h |
| May | 23.8°C16.1°C | 16.1°C | 174 | 11.8 | 13.814 h |
| June, selected | 26.2°C20.2°C | 20.2°C | 428 | 18.3 | 14.214 h |
| July | 29.5°C23.9°C | 23.9°C | 347 | 18.2 | 14.114 h |
| August | 30.8°C24.6°C | 24.6°C | 162 | 16.1 | 13.313 h |
| September | 27.9°C21.5°C | 21.5°C | 174 | 13.2 | 12.412 h |
| October | 23.0°C15.8°C | 15.8°C | 100 | 8.2 | 11.411 h |
| November | 17.4°C10.3°C | 10.3°C | 96 | 8.8 | 10.511 h |
| December | 11.8°C5.1°C | 5.1°C | 83 | 9.0 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Kumamoto in JuneJapan · 35 kmHigh 25.7°C · Low 19.4°C · 403 mm rain
- Amakusa in JuneJapan · 38 kmHigh 25.8°C · Low 20.1°C · 445 mm rain
- Ōmuta in JuneJapan · 60 kmHigh 25.6°C · Low 19.3°C · 393 mm rain
- Isahaya in JuneJapan · 64 kmHigh 24.0°C · Low 19.6°C · 444 mm rain
- Nagasaki in JuneJapan · 72 kmHigh 24.1°C · Low 20.4°C · 444 mm rain
- Ōmura in JuneJapan · 76 kmHigh 25.0°C · Low 20.3°C · 381 mm rain
- Aira in JuneJapan · 81 kmHigh 25.8°C · Low 19.6°C · 514 mm rain
- Sendai, Japan in JuneJapan · 82 kmHigh 25.6°C · Low 20.8°C · 500 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Honmachi) is explained once on the Honmachi year overview and on the Sources, method and limits page.