Climate averages 1991–2020
Honmachi weather
in April.
A mild, wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Honmachi: daytime highs average 19.5°C and nights cool to about 11.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 151 mm of rain on roughly 12 days, which makes April a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 58 min on an average April day.
The nearest other city in this atlas is Kumamoto (35 km away). In April its highs average 18.8°C, 0.7°C cooler than Honmachi, with 154 mm of rain.
Among the 303 cities listed in Japan, Honmachi ranks joint 9th of 303 for the warmest April highs and joint 257th of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Honmachi is 2.8°C warmer than that mean.
From April to May, average highs rise by 4.3°C to 23.8°C, and monthly rainfall rises from 151 mm to 174 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Kumamoto in AprilJapan · 35 kmHigh 18.8°C · Low 10.5°C · 154 mm rain
- Amakusa in AprilJapan · 38 kmHigh 19.2°C · Low 12.0°C · 152 mm rain
- Ōmuta in AprilJapan · 60 kmHigh 18.7°C · Low 10.4°C · 145 mm rain
- Isahaya in AprilJapan · 64 kmHigh 17.4°C · Low 11.6°C · 167 mm rain
- Nagasaki in AprilJapan · 72 kmHigh 17.4°C · Low 12.6°C · 167 mm rain
- Ōmura in AprilJapan · 76 kmHigh 18.2°C · Low 12.1°C · 150 mm rain
- Aira in AprilJapan · 81 kmHigh 19.5°C · Low 10.8°C · 182 mm rain
- Sendai, Japan in AprilJapan · 82 kmHigh 19.1°C · Low 12.8°C · 186 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.