Monthly climate guide
Chiba weather in December
December in Chiba is typically cool, with average daytime highs around 12°C (53°F) and night-time lows near 3°C (38°F). The month usually brings about 68 mm of rain (some rain) and is often cloudy. Daytime highs are 5°C cooler than November and 3°C warmer than January.
What stands out in December
- Chiba is usually about 2°C warmer than Saitama, 50 km away, in December.
- In Chiba, December is early winter.
- It's one of the drier months, with about 50% less rain than Chiba's average.
- December is among Chiba's three coolest months.
Avg high
12°C
53°F
Avg low
3°C
38°F
Rainfall
68 mm
some rain
Humidity
77%
relative
Sky
68%
cloud · often cloudy
Chiba weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 9°C / 48°F | 1°C / 33°F | 65 mm | 74% | 65% |
| February | 10°C / 50°F | 1°C / 35°F | 74 mm | 75% | 73% |
| March | 14°C / 56°F | 4°C / 40°F | 120 mm | 76% | 70% |
| April | 18°C / 65°F | 9°C / 48°F | 137 mm | 76% | 69% |
| May | 23°C / 74°F | 14°C / 58°F | 141 mm | 78% | 69% |
| June | 26°C / 78°F | 18°C / 65°F | 198 mm | 82% | 81% |
| July | 30°C / 85°F | 23°C / 73°F | 158 mm | 83% | 74% |
| August | 31°C / 89°F | 24°C / 75°F | 111 mm | 81% | 60% |
| September | 28°C / 82°F | 21°C / 69°F | 223 mm | 82% | 71% |
| October | 22°C / 72°F | 15°C / 59°F | 233 mm | 81% | 74% |
| November | 17°C / 63°F | 9°C / 48°F | 110 mm | 80% | 72% |
| December | 12°C / 53°F | 3°C / 38°F | 68 mm | 77% | 68% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is December a good time to visit Chiba?
Compare the months in the chart above to find your ideal window.
Best time to visit Chiba →Other Japan cities in December
Cite or embed this data
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Chiba weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/chiba/december
<a href="https://weathercompare.eu/weather/japan/chiba/december">Chiba weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/chiba" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Chiba weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/chiba/december">Chiba weather in December</a> – WeatherCompare</p>
Chiba in December: quick answers
Is December a good time to visit Chiba?
December is cool in Chiba, with highs around 12°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Chiba in December?
Average highs are about 12°C (53°F) and average lows about 3°C (38°F), based on 10 years of daily data.
Does it rain a lot in Chiba in December?
Chiba typically gets around 68 mm of rain in December — some rain.
Figures are long-term averages for the area around Chiba (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.