Monthly climate guide
Chiba weather in May
May in Chiba is typically warm, with average daytime highs around 23°C (74°F) and night-time lows near 14°C (58°F). The month usually brings about 141 mm of rain (wet) and is often cloudy. Daytime highs are 5°C warmer than April and 2°C cooler than June.
What stands out in May
- In Chiba, May is late spring.
- Chiba is usually about 2°C warmer than Hakone, 110 km away, in May.
Avg high
23°C
74°F
Avg low
14°C
58°F
Rainfall
141 mm
wet
Humidity
78%
relative
Sky
69%
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 May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May 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 May
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Chiba weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/chiba/may
<a href="https://weathercompare.eu/weather/japan/chiba/may">Chiba weather in May</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 May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/chiba/may">Chiba weather in May</a> – WeatherCompare</p>
Chiba in May: quick answers
Is May a good time to visit Chiba?
Yes. May is one of the best months for Chiba, with highs around 23°C and about 141 mm of rain.
How warm is Chiba in May?
Average highs are about 23°C (74°F) and average lows about 14°C (58°F), based on 10 years of daily data.
Does it rain a lot in Chiba in May?
Chiba typically gets around 141 mm of rain in May — wet.
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.