AU
Level 1Exercise normal precautions
Exercise normal precautions
Japan · Nagano Prefecture · December
Nagano Prefecture in Decemberhow the month reads
December is a mixed month — worth planning against specific weeks inside Japan, with cooler than the yearly mean by 10.5°C. The safety bulletins below apply.
- Rank
- 8 of 12
- Score
- 60/100
December match
60/100
Free-tier default preferences.
What’s open · December
Things to do in Nagano Prefecture in December
- Open
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
- Temperature4°C−10.5°C vs. yearly mean
- Month rank8 of 12for Nagano Prefecture
- Best monthsJanuary · May · Junehighest regional score
12-month temperature · Nagano Prefecture
December in context
View data table
| Month | Average daytime high (°C) |
|---|---|
| January | 1.9 |
| February | 3.2 |
| March | 8.4 |
| April | 14.3 |
| May | 19.4 |
| June | 22.3 |
| July | 26.2 |
| August | 27.4 |
| September | 23.7 |
| October | 17.1 |
| November | 11.2 |
| December | 4.5 |
Safety · 6 governments
What the governments say about Japan
Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 6 governments · Advisory last changed
See breakdown by countryHide breakdown
CA
Level 1Exercise normal precautions
Exercise normal precautions
DE
Level 1Exercise normal precautions
Exercise normal precautions
NL
Level 1Exercise normal precautions
Exercise normal precautions
UK
Level 1Exercise normal precautions
Exercise normal precautions
US
Level 1Exercise normal precautions
Exercise normal precautions
Parts of Japan carry a higher advisory — up to level 4, "Do not travel". The governments concerned name a region rather than a boundary, so the carve-out is not drawn on the map and is not reflected in the combined level above. Follow the source links for where it applies.
Start free
Plan a December trip to Nagano Prefecture.
No card required. Upgrade to Premium whenever you want more depth.