Climate averages 1991–2020
Izumo weather
in July.
A warm, very wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Izumo: daytime highs average 27.2°C and nights cool to about 23.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 213 mm of rain on roughly 15 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 18 min on an average July day.
The nearest other city in this atlas is Matsue (29 km away). In July its highs average 26.6°C, 0.6°C cooler than Izumo, with 184 mm of rain.
Among the 303 cities listed in Japan, Izumo ranks joint 228th of 303 for the warmest July highs and 170th of 303 for the driest July (rainfall, lowest first). The mean July high of those 303 cities is 27.9°C; Izumo is 0.7°C cooler than that mean.
From July to August, average highs rise by 1.6°C to 28.7°C, and monthly rainfall falls from 213 mm to 149 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
Izumo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.5°C3.5°C | 3.5°C | 96 | 17.3 | 10.110 h |
| February | 8.2°C3.4°C | 3.4°C | 89 | 14.7 | 10.911 h |
| March | 11.3°C5.6°C | 5.6°C | 116 | 14.1 | 11.912 h |
| April | 16.0°C9.7°C | 9.7°C | 104 | 10.7 | 13.113 h |
| May | 20.3°C14.3°C | 14.3°C | 117 | 10.5 | 14.014 h |
| June | 23.7°C18.7°C | 18.7°C | 160 | 12.7 | 14.515 h |
| July, selected | 27.2°C23.2°C | 23.2°C | 213 | 15.2 | 14.314 h |
| August | 28.7°C24.6°C | 24.6°C | 149 | 13.8 | 13.513 h |
| September | 25.0°C20.9°C | 20.9°C | 190 | 13.6 | 12.412 h |
| October | 20.2°C15.8°C | 15.8°C | 103 | 10.3 | 11.311 h |
| November | 15.3°C10.7°C | 10.7°C | 87 | 11.1 | 10.310 h |
| December | 10.2°C6.0°C | 6.0°C | 103 | 16.3 | 9.810 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
- Matsue in JulyJapan · 29 kmHigh 26.6°C · Low 23.4°C · 184 mm rain
- Yonago in JulyJapan · 52 kmHigh 27.5°C · Low 22.9°C · 178 mm rain
- Higashihiroshima in JulyJapan · 107 kmHigh 28.1°C · Low 22.1°C · 225 mm rain
- Mihara in JulyJapan · 111 kmHigh 29.3°C · Low 23.1°C · 207 mm rain
- Hiroshima in JulyJapan · 111 kmHigh 29.1°C · Low 22.8°C · 251 mm rain
- Fukuyama in JulyJapan · 112 kmHigh 29.4°C · Low 23.1°C · 189 mm rain
- Onomichi in JulyJapan · 113 kmHigh 28.8°C · Low 22.8°C · 189 mm rain
- Tsuyama in JulyJapan · 117 kmHigh 29.7°C · Low 22.3°C · 229 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 Izumo) is explained once on the Izumo year overview and on the Sources, method and limits page.