Climate averages 1991–2020
Iwata weather
in October.
A mild, very wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Iwata: daytime highs average 21.8°C and nights cool to about 15.4°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 216 mm of rain on roughly 13 days, which makes October a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 20 min on an average October day.
The nearest other city in this atlas is Fukuroi (8 km away). In October its highs average 21.7°C, about as warm as Iwata, with 227 mm of rain.
Among the 303 cities listed in Japan, Iwata ranks joint 41st of 303 for the warmest October highs and joint 263rd of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Iwata is 1.5°C warmer than that mean.
From October to November, average highs fall by 4.9°C to 16.9°C, and monthly rainfall falls from 216 mm to 122 mm.
The annual picture
October 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
Iwata climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.4°C1.9°C | 1.9°C | 69 | 5.9 | 10.110 h |
| February | 10.5°C1.9°C | 1.9°C | 90 | 7.0 | 10.911 h |
| March | 13.6°C4.6°C | 4.6°C | 148 | 10.8 | 11.912 h |
| April | 18.0°C9.1°C | 9.1°C | 164 | 11.1 | 13.013 h |
| May | 22.0°C13.9°C | 13.9°C | 184 | 12.0 | 14.014 h |
| June | 24.8°C18.5°C | 18.5°C | 258 | 15.7 | 14.414 h |
| July | 28.4°C22.8°C | 22.8°C | 273 | 16.9 | 14.214 h |
| August | 29.7°C23.9°C | 23.9°C | 157 | 16.2 | 13.513 h |
| September | 26.7°C21.0°C | 21.0°C | 247 | 15.8 | 12.412 h |
| October, selected | 21.8°C15.4°C | 15.4°C | 216 | 12.5 | 11.311 h |
| November | 16.9°C9.6°C | 9.6°C | 122 | 9.2 | 10.410 h |
| December | 11.7°C4.2°C | 4.2°C | 71 | 6.6 | 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
October in nearby cities
- Fukuroi in OctoberJapan · 8 kmHigh 21.7°C · Low 15.2°C · 227 mm rain
- Hamamatsu in OctoberJapan · 11 kmHigh 22.1°C · Low 15.2°C · 216 mm rain
- Hamakita in OctoberJapan · 13 kmHigh 21.8°C · Low 14.7°C · 216 mm rain
- Kakegawa in OctoberJapan · 17 kmHigh 21.5°C · Low 15.7°C · 227 mm rain
- Shimada in OctoberJapan · 33 kmHigh 20.7°C · Low 16.2°C · 251 mm rain
- Fujieda in OctoberJapan · 42 kmHigh 21.1°C · Low 16.3°C · 251 mm rain
- Toyohashi in OctoberJapan · 43 kmHigh 21.8°C · Low 14.6°C · 211 mm rain
- Shizuoka in OctoberJapan · 58 kmHigh 21.4°C · Low 15.9°C · 247 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 Iwata) is explained once on the Iwata year overview and on the Sources, method and limits page.
Hamamatsu and Hamakita lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.