Iiyama Weather in January
Average highs run from 0°C on January 1 to -2°C on January 31, and lows from -5°C to -7°C. Normal precipitation for the month is 189 mm over about 25 wet days.
January day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
January at a glance
- Average high
- -1°C
- Average low
- -6°C
- Precipitation
- 189 mm
- Reanalysis high
- 7°CJan 1, 1997
- Reanalysis low
- -17°CJan 24, 2005
- Daylight
- 9 h 42 min to 10 h 20 min
- Cloud cover
- 90%
- Humidity
- 98%
- Dew point
- -4°C
- Wind
- 10.4 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 |
|---|---|---|---|---|---|
| Jan 1 | 0°C | -5°C | 7°C 1997 | -12°C 2006 | 83% |
| Jan 2 | 0°C | -5°C | 4°C 2017 | -12°C 2003 | 84% |
| Jan 3 | 0°C | -6°C | 5°C 1998 | -12°C 2003 | 84% |
| Jan 4 | 0°C | -6°C | 7°C 1998 | -9°C 2012 | 84% |
| Jan 5 | 0°C | -6°C | 3°C 2000 | -13°C 2013 | 84% |
| Jan 6 | -1°C | -6°C | 5°C 2000 | -11°C 2005 | 84% |
| Jan 7 | -1°C | -6°C | 6°C 2000 | -11°C 2006 | 84% |
| Jan 8 | -1°C | -6°C | 7°C 2020 | -12°C 2003 | 84% |
| Jan 9 | -1°C | -6°C | 5°C 1995 | -15°C 2006 | 83% |
| Jan 10 | -1°C | -6°C | 5°C 1994 | -14°C 2019 | 83% |
| Jan 11 | -1°C | -6°C | 5°C 2020 | -13°C 2013 | 82% |
| Jan 12 | -1°C | -6°C | 4°C 2020 | -15°C 2006 | 81% |
| Jan 13 | -1°C | -6°C | 7°C 2000 | -15°C 1996 | 80% |
| Jan 14 | -1°C | -6°C | 4°C 2006 | -17°C 2018 | 80% |
| Jan 15 | -1°C | -6°C | 4°C 2002 | -12°C 2018 | 81% |
| Jan 16 | -1°C | -7°C | 4°C 2002 | -13°C 2003 | 81% |
| Jan 17 | -1°C | -7°C | 4°C 1994 | -14°C 1999 | 80% |
| Jan 18 | -1°C | -7°C | 1°C 2018 | -14°C 2015 | 80% |
| Jan 19 | -1°C | -7°C | 4°C 2000 | -11°C 2001 | 80% |
| Jan 20 | -1°C | -7°C | 1°C 2020 | -14°C 2001 | 82% |
| Jan 21 | -1°C | -7°C | 7°C 2002 | -15°C 2015 | 82% |
| Jan 22 | -1°C | -7°C | 4°C 2020 | -12°C 1997 | 81% |
| Jan 23 | -1°C | -7°C | 6°C 2020 | -16°C 2014 | 82% |
| Jan 24 | -1°C | -7°C | 3°C 2020 | -17°C 2005 | 82% |
| Jan 25 | -1°C | -7°C | 2°C 2014 | -14°C 2001 | 83% |
| Jan 26 | -2°C | -7°C | 4°C 2020 | -13°C 2017 | 83% |
| Jan 27 | -2°C | -7°C | 2°C 2003 | -13°C 2014 | 84% |
| Jan 28 | -2°C | -7°C | 4°C 2020 | -14°C 1996 | 84% |
| Jan 29 | -2°C | -7°C | 3°C 2020 | -12°C 2014 | 83% |
| Jan 30 | -2°C | -7°C | 5°C 2007 | -13°C 1999 | 83% |
| Jan 31 | -2°C | -7°C | 3°C 2007 | -15°C 2013 | 82% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- January 1
- sunrise 6:59 AM, sunset 4:41 PM
- January 31
- sunrise 6:50 AM, sunset 5:10 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.