Japan Yokohama Weather in December — Climate Guide
December in Yokohama is very good
Yokohama Weather in December — Quick Answer
As of 2026- Avg temp
- 12° / 5°
- Rainfall
- 65mm · 5 days
- Crowds
- Very busy
As of 2026, Yokohama in December averages a high of 12°C and low of 5°C with 65mm of rain over about 5 days. Early winter + illumination season — daytime 12°C, mornings and evenings 4-5°C. Heavy coat, scarf, knit, gloves essential. The Minato Mirai and Yamashita Park waterfront feels several degrees colder thanks to bay wind — add a windproof shell + hand warmers. Illumination evenings run long — warm shoes + thick socks matter.
December is very good for Yokohama.
December is Yokohama's most romantic month — Aka Renga's Christmas Market, peak Minato Mirai illumination, and crystal-clear winter skies make this the year's headline winter destination. Average 12°C / 5°C, rainfall 65mm — light and dry, with most days starring blue skies + sharp evening views.
December signatures: Aka Renga Christmas Market (early December through December 25 — German-style outdoor market with mulled wine, sausages, ornament stalls), Minato Mirai illumination (December through February at Cosmo World, Landmark Tower, Queen's Square), Yamashita Park illumination, Chinatown's Christmas + year-end menus. The Cosmo World Ferris wheel + Minato Mirai illumination night view is the year's best photo composition.
Travel score
Illumination + Christmas Market — Yokohama's most romantic month
December Weather at a Glance
December averages 54°F / 12°C highs and 41°F / 5°C lows — early winter. Bay-side Minato Mirai and Yamashita Park feel several degrees colder due to wind off Tokyo Bay. 65mm rainfall is light with mostly clear skies. Snow falls once or twice. Sunrise 6:45 AM, sunset 4:35 PM — year's shortest daylight at 9h 50m.
December Travel Advice
Aka Renga Christmas Market is Japan's top Christmas market — weekday afternoons are the value window before evening crowds. Minato Mirai illumination is free through February. For honeymoons + anniversaries, December 1-22 combines normal pricing + peak illumination + Christmas Market — book by November. Skip the December 24-January 3 stretch unless your dates are fixed.
Flying In from Overseas
Western Christmas + New Year is global travel's most expensive week — December 24-January 3. Flights from Seoul (2.5h) $400-1,000, Singapore $700-1,200, Sydney (summer break) $1,000-1,600, San Francisco $1,200-1,800, London $1,200-1,800. December 1-22 window is dramatically more affordable.
December Pricing Trends
Business hotels $50-80/night (December 1-22), 4-star Minato Mirai $130-220/night. Christmas + New Year week $280-460/night. Aka Renga Christmas Market entry free; mulled wine $6-8, sausage $7-10. USD 1 ≈ JPY 148.
Yokohama December Weather Stats
Avg High
12°C
Avg Low
5°C
Rainy Days
5
65mm total
Sunshine
6h
Daily avg
Humidity
56%
dry
UV Index
2
Low
Wind
11 km/h
Gusts 23
Sea Temp
16°C
too cold for swimming
Snow Days
1
Monthly avg
Crowds
Very busy
At attractions
December Sunrise & Sunset
Expect about 1 snow days this month. Bring slip-resistant shoes and warm gear.
Air Quality
PM2.5
17 μg/m³
PM10
26 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
9°C
Nighttime
1°C
Humidity and wind affect how the actual temperature feels.
Wind
11 km/h
Max gust 23 km/h
Activities Recommended for December
December Travel Pros & Cons
Pros
- Aka Renga Christmas Market — Japan's top Christmas market
- Minato Mirai illumination at peak
- Honeymoon + anniversary + winter-escape destination
Cons
- December 24-January 3 is the year's most expensive week globally
- Bayside wind chill drops felt temperature to 0°C
- Shortest daylight — sunset 4:35 PM
December Events & Festivals
- Minato Mirai illumination (December through February) at peak intensity
- Aka Renga Christmas Market (early December through Christmas)
- Western Christmas + New Year holiday week (December 24-January 3) — year's peak pricing
- Sankeien foliage illumination tail (early December)
Yokohama in December — Full Picture
December is Yokohama's most romantic month — Aka Renga's Christmas Market, peak Minato Mirai illumination, and crystal-clear winter skies make this the year's headline winter destination. Average 12°C / 5°C, rainfall 65mm — light and dry, with most days starring blue skies + sharp evening views.
December signatures: Aka Renga Christmas Market (early December through December 25 — German-style outdoor market with mulled wine, sausages, ornament stalls), Minato Mirai illumination (December through February at Cosmo World, Landmark Tower, Queen's Square), Yamashita Park illumination, Chinatown's Christmas + year-end menus. The Cosmo World Ferris wheel + Minato Mirai illumination night view is the year's best photo composition.
The price trap: Western Christmas + New Year (December 24-January 3) is global travel's biggest week. Flights from Seoul reach $400-1,000, Minato Mirai 4-star hotels run $280-460/night. The December 1-22 window — illumination at peak + Christmas Market open + hotels at normal pricing — is the year's best winter value, ideal for honeymoons and anniversary trips. Bayside cold + wind chill mean hand warmers + windproof shells are worth packing.
What to Wear & What to Pack
Early winter + illumination season — daytime 12°C, mornings and evenings 4-5°C. Heavy coat, scarf, knit, gloves essential. The Minato Mirai and Yamashita Park waterfront feels several degrees colder thanks to bay wind — add a windproof shell + hand warmers. Illumination evenings run long — warm shoes + thick socks matter.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18.7°C
10°C
10.3/mo
Summer (Jun·Jul·Aug)
28°C
22°C
10.3/mo
Autumn (Sep·Oct·Nov)
22°C
15.7°C
9.3/mo
Winter (Dec·Jan·Feb)
Current11°C
3.3°C
5.3/mo
Yokohama Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 10° | 2° | 5d·55mm | 6h | 53% | 2 | Quiet | Low season | |
| 11° | 3° | 6d·60mm | 6h | 55% | 3 | Quiet | Low season | |
| March (Best) | 14° | 5° | 10d·115mm | 6h | 58% | 5 | Very busy | Peak |
| April (Best) | 19° | 10° | 11d·125mm | 6h | 62% | 6 | Very busy | Peak |
| May (Best) | 23° | 15° | 10d·138mm | 6h | 67% | 7 | Busy | Shoulder |
| 25° | 19° | 12d·175mm | 4h | 75% | 8 | Quiet | Low season | |
| 29° | 23° | 11d·155mm | 5h | 78% | 10 | Busy | Peak | |
| 30° | 24° | 8d·140mm | 6h | 75% | 10 | Very busy | Peak | |
| 27° | 21° | 11d·230mm | 4h | 76% | 7 | Moderate | Shoulder | |
| 22° | 16° | 10d·235mm | 5h | 72% | 5 | Busy | Peak | |
| November (Best) | 17° | 10° | 7d·100mm | 5h | 65% | 3 | Very busy | Peak |
| December (Best) | 12° | 5° | 5d·65mm | 6h | 56% | 2 | Very busy | Peak |
View Other Months
Yokohama December Hotel Picks
Frequently Asked Questions
Is December a good time to visit Yokohama?
Yokohama in December is very good. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Yokohama in December?
Yokohama December averages a high of 12°C and a low of 5°C.
Does it rain much in Yokohama in December?
Yokohama December averages 65mm of rainfall over about 5 rainy days.
What should I wear in Yokohama in December?
Early winter + illumination season — daytime 12°C, mornings and evenings 4-5°C. Heavy coat, scarf, knit, gloves essential. The Minato Mirai and Yamashita Park waterfront feels several degrees colder thanks to bay wind — add a windproof shell + hand warmers. Illumination evenings run long — warm shoes + thick socks matter.
What time are sunrise and sunset in Yokohama in December?
Yokohama December sunrise is 06:45 and sunset is 16:35, with 9h 50min of daylight.
What's the air quality like in Yokohama in December?
Yokohama December air quality (AQI) averages 38, rated Good. PM2.5 averages 17μg/m³.
What activities are recommended in Yokohama in December?
In December, Yokohama is great for Aka Renga Christmas Market, Minato Mirai illumination, Cosmo World night view.
Is December peak season in Yokohama?
Yokohama December crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Yokohama
View Other Months
Planning a December trip to Yokohama?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.