Monthly climate guide
Chiba weather in August
Expect hot weather in Chiba in August: afternoons reach about 31°C (89°F), while nights drop to around 24°C (75°F). Around 111 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 2°C warmer than July and 4°C warmer than September.
What stands out in August
- Humidity near 81% makes 31°C feel stickier than it sounds.
- Seasonally, August counts as late summer in Chiba.
- Skies are at their clearest this time of year.
- Nights stay warm, rarely below 24°C — air-conditioning helps.
August is typically Chiba's warmest month.
Avg high
31°C
89°F
Avg low
24°C
75°F
Rainfall
111 mm
wet
Humidity
81%
relative
Sky
60%
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 August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is August 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 August
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Chiba weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/chiba/august
<a href="https://weathercompare.eu/weather/japan/chiba/august">Chiba weather in August</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 August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/chiba/august">Chiba weather in August</a> – WeatherCompare</p>
Chiba in August: quick answers
Is August a good time to visit Chiba?
It can be, if you like heat: August highs in Chiba are around 31°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Chiba in August?
Average highs are about 31°C (89°F) and average lows about 24°C (75°F), based on 10 years of daily data.
Does it rain a lot in Chiba in August?
Chiba typically gets around 111 mm of rain in August — 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.