Climate of Chiba Prefecture, Japan
Area-weighted average across Chiba Prefecture. For where people actually live and travel, see the cities below.
Chiba Prefecture, a subdivision of Japan, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 4.7°C / 40.5°F in January to 25.9°C / 78.6°F in August, with rainfall from 56 mm / 2.2 in to 203 mm / 8 in depending on the season (1530 mm / 60.2 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 4.7°C40.5°F | 58 mm2.3″ | — |
| February | 5.2°C41.4°F | 78 mm3.1″ | — |
| March | 8.2°C46.8°F | 122 mm4.8″ | — |
| April | 13.5°C56.3°F | 130 mm5.1″ | — |
| May | 17.6°C63.7°F | 132 mm5.2″ | — |
| June | 20.7°C69.3°F | 180 mm7.1″ | — |
| July | 24.2°C75.6°F | 129 mm5.1″ | — |
| August | 25.9°C78.6°F | 137 mm5.4″ | — |
| September | 22.7°C72.9°F | 203 mm8″ | — |
| October | 17.4°C63.3°F | 195 mm7.7″ | — |
| November | 12.2°C54°F | 110 mm4.3″ | — |
| December | 7.3°C45.1°F | 56 mm2.2″ | — |
Frequently asked questions
What is the best time to visit Chiba Prefecture?
Chiba Prefecture, Japan does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 25.9°C / 78.6°F, and the driest is December at 56 mm / 2.2 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Chiba Prefecture?
Chiba Prefecture, Japan has area-weighted monthly average temperatures ranging from 4.7°C / 40.5°F in January to 25.9°C / 78.6°F in August. Annual rainfall averages about 1530 mm / 60.2 in, with the wettest month being September (203 mm / 8 in) and the driest December (56 mm / 2.2 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Chiba Prefecture?
The hottest month in Chiba Prefecture is August, with an area-wide average temperature of 25.9°C / 78.6°F.
What is the coldest month in Chiba Prefecture?
The coldest month in Chiba Prefecture is January, with an area-wide average temperature of 4.7°C / 40.5°F.
When does it rain most in Chiba Prefecture?
The wettest month in Chiba Prefecture is September, averaging about 203 mm / 8 in of rainfall. The driest is December with about 56 mm / 2.2 in.