Destination packing checklists

Okayama weather in December

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Okayama December weather at a glance

B Good 🙂

In December, Okayama averages 6.3°C, with typical highs of 11.7°C and lows of 1.9°C. The historical average is 3 wet days and 74% humidity.

Compared with Seoul in December, it is 7.2°C warmer than Seoul, with 2 fewer wet days.

Okayama December temperature & humidity

Average6.3°CHigh 11.7° / low 1.9°
Humidity74%
Wet days3 days10% of days
Day–night range9.8°

Okayama December rain & wet days

Wet days3 daysHistorical monthly average
Share of wet days10%Not a forecast probability

Pack a compact umbrella. Keep an indoor stop available between outdoor activities.

What to wear in Okayama in December

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings.

  • DaytimeWarm coat and layered tops · average high 11.7°C
  • Morning & eveningInsulating coat, scarf and gloves · average low 1.9°C
  • FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Useful extras
Warm jacket or coatKnitwear
Use the Osaka checklist as a starting point →

Okayama December sunrise & sunset times

2026 December · Local time (Asia/Tokyo)

Sunrise on the 15th07:04
Sunset on the 15th16:55
Daylight duration9h 51m
Start, middle and end of the month
DateSunriseSunsetDaylight
2026-12-0106:5316:5410h 1m
2026-12-1507:0416:559h 51m
2026-12-3107:1117:039h 52m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Okayama travel updates

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Best months to visit Okayama

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

ColdHot

December weather by year

December 20245.9°0 wet days, 71% humidity
December 20256.7°6 wet days, 76% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

118°4°
218°7°
310°2°
48°0°
511°1°
610°-2°
717°1°
816°5°
913°2°
1013°1°
1116°2°
128°2°
139°-1°1.4mm
1412°5°6.4mm
1512°3°
1613°-2°
179°2°2.9mm
1812°4°
1913°0°
2016°5°
2115°8°3.7mm
2211°3°
2311°-1°
2411°3°1.1mm
2513°5°5.7mm
266°0°
277°-2°
2812°-1°
2911°0°
3014°2°
319°0°

Frequently asked questions

What is Okayama weather like in December?

In December, Okayama averages 6.3°C, with typical highs of 11.7°C and lows of 1.9°C. The historical average is 3 wet days and 74% humidity. Our weather-comfort rating for this month is good.

Does it rain a lot in Okayama in December?

There are about 3 wet days in December. A compact umbrella is still useful.

What should I wear in Okayama in December?

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings.

What are the best months to visit Okayama?

Recent weather data rates January, April, May, October among the more comfortable months.

Where can I check Okayama weather in December in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Okayama in December?

On 2026-12-15, calculated sunrise is 07:04 and sunset is 16:55 in local time (Asia/Tokyo). Times vary by date and terrain.

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations