Climate averages 1991–2020
Yamagata weather
in May.
A mild, wet month: the 5th warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Yamagata: daytime highs average 19.2°C and nights cool to about 8.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 91 mm of rain on roughly 12 days, which makes May a wet month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 13 min on an average May day.
The nearest other city in this atlas is Yonezawa (42 km away). In May its highs average 20.0°C, 0.8°C warmer than Yamagata, with 116 mm of rain.
Among the 303 cities listed in Japan, Yamagata ranks joint 273rd of 303 for the warmest May highs and joint 7th of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Yamagata is 2.1°C cooler than that mean.
From May to June, average highs rise by 3.4°C to 22.6°C, and monthly rainfall rises from 91 mm to 119 mm.
The annual picture
May in context
Monthly precipitation
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
Yamagata climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.8°C-6.4°C | -6.4°C | 126 | 21.8 | 9.810 h |
| February | 1.8°C-6.0°C | -6.0°C | 91 | 18.1 | 10.711 h |
| March | 5.6°C-3.1°C | -3.1°C | 109 | 16.9 | 11.912 h |
| April | 12.8°C2.0°C | 2.0°C | 94 | 13.7 | 13.213 h |
| May, selected | 19.2°C8.4°C | 8.4°C | 91 | 11.9 | 14.214 h |
| June | 22.6°C13.8°C | 13.8°C | 119 | 12.5 | 14.815 h |
| July | 25.7°C18.4°C | 18.4°C | 189 | 17.4 | 14.515 h |
| August | 26.9°C19.5°C | 19.5°C | 146 | 14.8 | 13.614 h |
| September | 22.8°C15.5°C | 15.5°C | 125 | 13.0 | 12.512 h |
| October | 16.9°C8.7°C | 8.7°C | 118 | 12.4 | 11.211 h |
| November | 10.6°C2.2°C | 2.2°C | 95 | 15.3 | 10.110 h |
| December | 3.9°C-3.0°C | -3.0°C | 120 | 20.0 | 9.610 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Yonezawa in MayJapan · 42 kmHigh 20.0°C · Low 9.8°C · 116 mm rain
- Sendai in MayJapan · 44 kmHigh 18.3°C · Low 10.3°C · 103 mm rain
- Natori-shi in MayJapan · 46 kmHigh 18.0°C · Low 11.0°C · 113 mm rain
- Fukushima in MayJapan · 54 kmHigh 20.6°C · Low 10.0°C · 106 mm rain
- Ōsaki in MayJapan · 66 kmHigh 19.6°C · Low 9.8°C · 109 mm rain
- Tsuruoka in MayJapan · 72 kmHigh 18.6°C · Low 11.4°C · 134 mm rain
- Ishinomaki in MayJapan · 84 kmHigh 17.0°C · Low 11.5°C · 100 mm rain
- Tome in MayJapan · 87 kmHigh 19.4°C · Low 10.0°C · 98 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 Yamagata) is explained once on the Yamagata year overview and on the Sources, method and limits page.