Climate averages 1991–2020
Toyohashi weather
in May.
A warm, wet month: the 5th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Toyohashi: daytime highs average 22.3°C and nights cool to about 13.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 170 mm of rain on roughly 11 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average May day.
The nearest other city in this atlas is Gamagōri (16 km away). In May its highs average 22.0°C, about as warm as Toyohashi, with 164 mm of rain.
Among the 303 cities listed in Japan, Toyohashi ranks joint 92nd of 303 for the warmest May highs and joint 242nd of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Toyohashi is 1.0°C warmer than that mean.
From May to June, average highs rise by 2.9°C to 25.2°C, and monthly rainfall rises from 170 mm to 242 mm.
The annual picture
May 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
Toyohashi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C1.2°C | 1.2°C | 64 | 5.7 | 10.110 h |
| February | 9.9°C1.4°C | 1.4°C | 83 | 7.0 | 10.911 h |
| March | 13.4°C4.0°C | 4.0°C | 135 | 10.5 | 11.912 h |
| April | 18.1°C8.8°C | 8.8°C | 151 | 10.4 | 13.013 h |
| May, selected | 22.3°C13.7°C | 13.7°C | 170 | 11.3 | 14.014 h |
| June | 25.2°C18.2°C | 18.2°C | 242 | 15.6 | 14.414 h |
| July | 28.8°C22.5°C | 22.5°C | 250 | 15.8 | 14.214 h |
| August | 30.2°C23.6°C | 23.6°C | 144 | 15.3 | 13.513 h |
| September | 27.0°C20.4°C | 20.4°C | 236 | 14.6 | 12.412 h |
| October | 21.8°C14.6°C | 14.6°C | 211 | 11.8 | 11.311 h |
| November | 16.5°C8.7°C | 8.7°C | 113 | 8.9 | 10.410 h |
| December | 11.2°C3.5°C | 3.5°C | 67 | 6.3 | 9.910 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
May in nearby cities
- Gamagōri in MayJapan · 16 kmHigh 22.0°C · Low 14.1°C · 164 mm rain
- Okazaki in MayJapan · 28 kmHigh 22.7°C · Low 13.4°C · 172 mm rain
- Nishio in MayJapan · 32 kmHigh 21.8°C · Low 14.0°C · 154 mm rain
- Hamamatsu in MayJapan · 33 kmHigh 22.4°C · Low 14.0°C · 184 mm rain
- Anjō in MayJapan · 35 kmHigh 22.6°C · Low 13.1°C · 138 mm rain
- Hamakita in MayJapan · 37 kmHigh 22.2°C · Low 13.4°C · 184 mm rain
- Toyota in MayJapan · 41 kmHigh 22.6°C · Low 12.6°C · 172 mm rain
- Handa in MayJapan · 43 kmHigh 21.8°C · Low 14.0°C · 138 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 Toyohashi) is explained once on the Toyohashi year overview and on the Sources, method and limits page.