Climate averages 1991–2020
Iga weather
in August.
A hot, wet month: the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Iga: daytime highs average 30.8°C and nights cool to about 23.2°C. By daytime temperature it is the warmest month of the year.
Expect about 174 mm of rain on roughly 16 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 28 min on an average August day.
The nearest other city in this atlas is Nabari (16 km away). In August its highs average 30.5°C, about as warm as Iga, with 176 mm of rain.
Among the 303 cities listed in Japan, Iga ranks joint 31st of 303 for the warmest August highs and joint 233rd of 303 for the driest August (rainfall, lowest first). The mean August high of those 303 cities is 29.2°C; Iga is 1.6°C warmer than that mean.
From August to September, average highs fall by 4.0°C to 26.8°C, and monthly rainfall rises from 174 mm to 223 mm.
The annual picture
August 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
Iga climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C0.1°C | 0.1°C | 63 | 6.5 | 10.110 h |
| February | 8.4°C0.3°C | 0.3°C | 70 | 8.0 | 10.911 h |
| March | 12.4°C2.8°C | 2.8°C | 119 | 12.0 | 11.912 h |
| April | 17.8°C7.8°C | 7.8°C | 134 | 10.9 | 13.013 h |
| May | 22.5°C13.1°C | 13.1°C | 158 | 11.8 | 14.014 h |
| June | 25.8°C17.8°C | 17.8°C | 220 | 15.0 | 14.414 h |
| July | 29.4°C22.2°C | 22.2°C | 222 | 18.5 | 14.214 h |
| August, selected | 30.8°C23.2°C | 23.2°C | 174 | 15.6 | 13.513 h |
| September | 26.8°C19.6°C | 19.6°C | 223 | 14.6 | 12.412 h |
| October | 21.0°C13.5°C | 13.5°C | 202 | 10.9 | 11.311 h |
| November | 15.5°C7.4°C | 7.4°C | 93 | 7.9 | 10.410 h |
| December | 9.9°C2.3°C | 2.3°C | 62 | 6.7 | 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
August in nearby cities
- Nabari in AugustJapan · 16 kmHigh 30.5°C · Low 23.1°C · 176 mm rain
- Kōka in AugustJapan · 25 kmHigh 30.2°C · Low 22.8°C · 148 mm rain
- Nara-shi in AugustJapan · 31 kmHigh 31.2°C · Low 23.6°C · 89 mm rain
- Jōyō in AugustJapan · 32 kmHigh 30.7°C · Low 23.1°C · 89 mm rain
- Kusatsu in AugustJapan · 33 kmHigh 30.8°C · Low 23.1°C · 103 mm rain
- Uji in AugustJapan · 34 kmHigh 31.0°C · Low 23.3°C · 140 mm rain
- Tsu in AugustJapan · 35 kmHigh 30.3°C · Low 24.1°C · 179 mm rain
- Ōtsu in AugustJapan · 36 kmHigh 30.5°C · Low 22.7°C · 140 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 Iga) is explained once on the Iga year overview and on the Sources, method and limits page.