Nakano climate

Nakano Weather in December

NASA POWER reanalysis for the half-degree grid cell around Nakano, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 6°C on December 1 to 0°C on December 31, and lows from -1°C to -5°C. Normal precipitation for the month is 205 mm over about 25 wet days.

December day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Nakano, in °C, with the record for each date.-20-1001020151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
3°C
Average low
-3°C
Precipitation
205 mm
Reanalysis high
19°CDec 4, 2018
Reanalysis low
-15°CDec 28, 1995
Daylight
9 h 51 min to 9 h 41 min
Cloud cover
86%
Humidity
95%
Dew point
-1°C
Wind
9.0 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Dec 16°C-1°C14°C 2014-5°C 199674%
Dec 26°C-1°C14°C 1994-5°C 201275%
Dec 36°C-1°C12°C 2010-6°C 201276%
Dec 45°C-1°C19°C 2018-5°C 199777%
Dec 55°C-2°C18°C 2004-7°C 199777%
Dec 65°C-2°C13°C 2010-7°C 201478%
Dec 74°C-2°C12°C 1997-7°C 200577%
Dec 84°C-2°C11°C 1997-8°C 201477%
Dec 94°C-2°C12°C 2008-9°C 201978%
Dec 104°C-3°C12°C 2004-7°C 200280%
Dec 113°C-3°C17°C 2015-8°C 200281%
Dec 123°C-3°C11°C 2015-7°C 200080%
Dec 133°C-3°C10°C 2015-11°C 201280%
Dec 143°C-3°C10°C 2015-12°C 201280%
Dec 153°C-3°C13°C 2015-9°C 201480%
Dec 162°C-3°C9°C 1996-10°C 201879%
Dec 172°C-4°C10°C 1991-8°C 201479%
Dec 182°C-4°C9°C 1996-9°C 200279%
Dec 192°C-4°C10°C 1997-14°C 201480%
Dec 202°C-4°C11°C 2004-14°C 199480%
Dec 211°C-4°C12°C 2008-8°C 201180%
Dec 221°C-4°C12°C 2016-11°C 199480%
Dec 231°C-4°C9°C 1991-10°C 199480%
Dec 241°C-4°C9°C 1991-11°C 201481%
Dec 251°C-5°C7°C 2006-13°C 201281%
Dec 261°C-5°C7°C 2006-9°C 199581%
Dec 271°C-5°C7°C 1997-13°C 201482%
Dec 280°C-5°C5°C 2007-15°C 199583%
Dec 290°C-5°C6°C 2007-10°C 201182%
Dec 300°C-5°C4°C 1996-11°C 200082%
Dec 310°C-5°C8°C 1996-13°C 201182%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Nakano, in percent.0204060801001102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+9).

December 1
sunrise 6:40 AM, sunset 4:31 PM
December 31
sunrise 6:59 AM, sunset 4:40 PM

Every day of December: sun and moon

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.