Jōetsu Weather in October
Average highs run from 20°C on October 1 to 15°C on October 31, and lows from 14°C to 8°C. Normal precipitation for the month is 158 mm over about 16 wet days.
October day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
October at a glance
- Average high
- 18°C
- Average low
- 11°C
- Precipitation
- 158 mm
- Reanalysis high
- 28°COct 6, 2018
- Reanalysis low
- 4°COct 28, 1993
- Daylight
- 11 h 49 min to 10 h 41 min
- Cloud cover
- 71%
- Humidity
- 83%
- Dew point
- 11°C
- Wind
- 11.9 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 20°C | 14°C | 26°C 1998 | 10°C 1997 | 55% |
| Oct 2 | 20°C | 14°C | 26°C 2019 | 10°C 2011 | 55% |
| Oct 3 | 20°C | 14°C | 26°C 2019 | 9°C 2011 | 53% |
| Oct 4 | 20°C | 14°C | 23°C 2019 | 9°C 2003 | 53% |
| Oct 5 | 20°C | 13°C | 24°C 2016 | 9°C 1993 | 53% |
| Oct 6 | 20°C | 13°C | 28°C 2018 | 8°C 1993 | 53% |
| Oct 7 | 20°C | 13°C | 26°C 2013 | 6°C 1992 | 54% |
| Oct 8 | 19°C | 13°C | 24°C 2016 | 7°C 1997 | 54% |
| Oct 9 | 19°C | 13°C | 28°C 2013 | 6°C 1997 | 53% |
| Oct 10 | 19°C | 12°C | 26°C 2013 | 10°C 2002 | 53% |
| Oct 11 | 19°C | 12°C | 27°C 2013 | 8°C 2002 | 53% |
| Oct 12 | 18°C | 12°C | 26°C 1994 | 8°C 2008 | 52% |
| Oct 13 | 18°C | 12°C | 25°C 1999 | 8°C 1997 | 51% |
| Oct 14 | 18°C | 12°C | 24°C 2005 | 9°C 2012 | 50% |
| Oct 15 | 18°C | 11°C | 24°C 1998 | 7°C 1991 | 51% |
| Oct 16 | 18°C | 11°C | 23°C 1995 | 8°C 1996 | 51% |
| Oct 17 | 18°C | 11°C | 23°C 2012 | 7°C 1996 | 50% |
| Oct 18 | 18°C | 11°C | 24°C 1998 | 7°C 2013 | 52% |
| Oct 19 | 17°C | 11°C | 23°C 2019 | 7°C 2000 | 52% |
| Oct 20 | 17°C | 10°C | 20°C 2010 | 7°C 1996 | 52% |
| Oct 21 | 17°C | 10°C | 21°C 2013 | 6°C 1996 | 52% |
| Oct 22 | 17°C | 10°C | 23°C 2011 | 6°C 1996 | 53% |
| Oct 23 | 16°C | 10°C | 21°C 2013 | 5°C 1999 | 54% |
| Oct 24 | 16°C | 10°C | 21°C 1997 | 5°C 1999 | 54% |
| Oct 25 | 16°C | 9°C | 21°C 1996 | 6°C 2016 | 54% |
| Oct 26 | 16°C | 9°C | 21°C 2014 | 4°C 1996 | 54% |
| Oct 27 | 16°C | 9°C | 20°C 2015 | 4°C 1993 | 56% |
| Oct 28 | 15°C | 9°C | 20°C 1994 | 4°C 1993 | 56% |
| Oct 29 | 15°C | 8°C | 20°C 1999 | 5°C 2014 | 56% |
| Oct 30 | 15°C | 8°C | 20°C 1996 | 5°C 2016 | 56% |
| Oct 31 | 15°C | 8°C | 20°C 2009 | 5°C 1997 | 55% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- October 1
- sunrise 5:42 AM, sunset 5:31 PM
- October 31
- sunrise 6:10 AM, sunset 4:51 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.