Climate averages 1991–2020
Sendai, Japan weather
in July.
A hot, very wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Sendai, Japan: daytime highs average 29.1°C and nights cool to about 24.6°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 324 mm of rain on roughly 18 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 01 min on an average July day.
The nearest other city in this atlas is Aira (28 km away). In July its highs average 29.4°C, about as warm as Sendai, Japan, with 336 mm of rain.
Among the 303 cities listed in Japan, Sendai, Japan ranks joint 60th of 303 for the warmest July highs and 290th of 303 for the driest July (rainfall, lowest first). The mean July high of those 303 cities is 27.9°C; Sendai, Japan is 1.2°C warmer than that mean.
From July to August, average highs rise by 1.1°C to 30.1°C, and monthly rainfall falls from 324 mm to 166 mm.
The annual picture
July 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
Sendai, Japan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.1°C6.8°C | 6.8°C | 98 | 12.3 | 10.310 h |
| February | 12.0°C7.0°C | 7.0°C | 115 | 11.3 | 11.011 h |
| March | 15.0°C9.2°C | 9.2°C | 161 | 13.4 | 12.012 h |
| April | 19.1°C12.8°C | 12.8°C | 186 | 11.7 | 12.913 h |
| May | 23.0°C16.9°C | 16.9°C | 205 | 11.3 | 13.814 h |
| June | 25.6°C20.8°C | 20.8°C | 500 | 18.5 | 14.214 h |
| July, selected | 29.1°C24.6°C | 24.6°C | 324 | 17.6 | 14.014 h |
| August | 30.1°C25.5°C | 25.5°C | 166 | 15.7 | 13.313 h |
| September | 27.9°C23.1°C | 23.1°C | 198 | 13.1 | 12.412 h |
| October | 23.6°C18.5°C | 18.5°C | 109 | 8.6 | 11.411 h |
| November | 18.4°C13.6°C | 13.6°C | 122 | 9.3 | 10.611 h |
| December | 13.3°C8.9°C | 8.9°C | 102 | 10.6 | 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
July in nearby cities
- Aira in JulyJapan · 28 kmHigh 29.4°C · Low 23.6°C · 336 mm rain
- Kagoshima in JulyJapan · 37 kmHigh 29.4°C · Low 24.6°C · 300 mm rain
- Kirishima in JulyJapan · 45 kmHigh 30.4°C · Low 24.2°C · 299 mm rain
- Kanoya in JulyJapan · 71 kmHigh 29.7°C · Low 24.3°C · 285 mm rain
- Amakusa in JulyJapan · 72 kmHigh 29.3°C · Low 24.0°C · 366 mm rain
- Miyakonojō in JulyJapan · 73 kmHigh 29.7°C · Low 23.7°C · 280 mm rain
- Honmachi in JulyJapan · 82 kmHigh 29.5°C · Low 23.9°C · 347 mm rain
- Miyazaki in JulyJapan · 106 kmHigh 28.8°C · Low 24.3°C · 224 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 Sendai) is explained once on the Sendai, Japan year overview and on the Sources, method and limits page.