Climate averages 1991–2020
Nishio weather
in May.
A mild, 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 mild month in Nishio: daytime highs average 21.8°C and nights cool to about 14.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 154 mm of rain on roughly 10 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 Anjō (11 km away). In May its highs average 22.6°C, 0.8°C warmer than Nishio, with 138 mm of rain.
Among the 303 cities listed in Japan, Nishio ranks joint 157th of 303 for the warmest May highs and joint 198th of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Nishio is 0.5°C warmer than that mean.
From May to June, average highs rise by 3.1°C to 24.9°C, and monthly rainfall rises from 154 mm to 209 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
Nishio climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.6°C1.5°C | 1.5°C | 73 | 9.2 | 10.110 h |
| February | 9.6°C1.7°C | 1.7°C | 77 | 9.3 | 10.911 h |
| March | 13.0°C4.3°C | 4.3°C | 120 | 10.4 | 11.912 h |
| April | 17.6°C9.0°C | 9.0°C | 129 | 9.9 | 13.013 h |
| May, selected | 21.8°C14.0°C | 14.0°C | 154 | 10.0 | 14.014 h |
| June | 24.9°C18.6°C | 18.6°C | 209 | 13.2 | 14.514 h |
| July | 28.3°C22.8°C | 22.8°C | 181 | 13.0 | 14.314 h |
| August | 29.7°C24.0°C | 24.0°C | 108 | 10.9 | 13.513 h |
| September | 26.6°C20.7°C | 20.7°C | 214 | 13.0 | 12.412 h |
| October | 21.4°C14.9°C | 14.9°C | 215 | 11.1 | 11.311 h |
| November | 16.1°C9.0°C | 9.0°C | 99 | 8.0 | 10.410 h |
| December | 10.9°C3.9°C | 3.9°C | 68 | 8.5 | 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
- Anjō in MayJapan · 11 kmHigh 22.6°C · Low 13.1°C · 138 mm rain
- Handa in MayJapan · 11 kmHigh 21.8°C · Low 14.0°C · 138 mm rain
- Okazaki in MayJapan · 14 kmHigh 22.7°C · Low 13.4°C · 172 mm rain
- Kariya in MayJapan · 14 kmHigh 22.5°C · Low 13.5°C · 138 mm rain
- Gamagōri in MayJapan · 17 kmHigh 22.0°C · Low 14.1°C · 164 mm rain
- Tōkai in MayJapan · 22 kmHigh 22.3°C · Low 13.3°C · 138 mm rain
- Toyota in MayJapan · 26 kmHigh 22.6°C · Low 12.6°C · 172 mm rain
- Toyohashi in MayJapan · 32 kmHigh 22.3°C · Low 13.7°C · 170 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 Nishio) is explained once on the Nishio year overview and on the Sources, method and limits page.