Climate averages 1991–2020
Nagaoka weather
in October.
A mild, wet month: the 6th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Nagaoka: daytime highs average 19.5°C and nights cool to about 11.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 143 mm of rain on roughly 15 days, which makes October a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 16 min on an average October day.
The nearest other city in this atlas is Sanjō (21 km away). In October its highs average 19.4°C, about as warm as Nagaoka, with 157 mm of rain.
Among the 303 cities listed in Japan, Nagaoka ranks joint 237th of 303 for the warmest October highs and joint 86th of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Nagaoka is 0.8°C cooler than that mean.
From October to November, average highs fall by 6.2°C to 13.3°C, and monthly rainfall rises from 143 mm to 145 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
Nagaoka climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.8°C-2.5°C | -2.5°C | 179 | 25.1 | 9.910 h |
| February | 4.5°C-2.7°C | -2.7°C | 127 | 20.6 | 10.811 h |
| March | 8.9°C-0.4°C | -0.4°C | 126 | 19.6 | 11.912 h |
| April | 15.7°C4.8°C | 4.8°C | 94 | 14.3 | 13.113 h |
| May | 21.4°C10.6°C | 10.6°C | 94 | 11.9 | 14.214 h |
| June | 25.1°C15.7°C | 15.7°C | 115 | 12.5 | 14.715 h |
| July | 28.1°C20.4°C | 20.4°C | 207 | 16.1 | 14.514 h |
| August | 29.8°C21.6°C | 21.6°C | 146 | 14.1 | 13.614 h |
| September | 25.6°C17.7°C | 17.7°C | 144 | 14.0 | 12.512 h |
| October, selected | 19.5°C11.3°C | 11.3°C | 143 | 14.8 | 11.311 h |
| November | 13.3°C5.3°C | 5.3°C | 145 | 18.2 | 10.210 h |
| December | 7.0°C0.2°C | 0.2°C | 181 | 23.7 | 9.610 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
- Sanjō in OctoberJapan · 21 kmHigh 19.4°C · Low 11.5°C · 157 mm rain
- Tsubame in OctoberJapan · 25 kmHigh 19.2°C · Low 12.4°C · 146 mm rain
- Kashiwazaki in OctoberJapan · 28 kmHigh 19.5°C · Low 12.0°C · 159 mm rain
- Niigata in OctoberJapan · 55 kmHigh 19.1°C · Low 13.1°C · 155 mm rain
- Jōetsu in OctoberJapan · 64 kmHigh 19.6°C · Low 12.4°C · 164 mm rain
- Shibata in OctoberJapan · 70 kmHigh 18.9°C · Low 11.5°C · 170 mm rain
- Aizu-Wakamatsu in OctoberJapan · 97 kmHigh 17.6°C · Low 10.5°C · 125 mm rain
- Nikkō in OctoberJapan · 103 kmHigh 17.4°C · Low 10.0°C · 198 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 Nagaoka) is explained once on the Nagaoka year overview and on the Sources, method and limits page.