Climate of Shimane Prefecture, Japan
Area-weighted average across Shimane Prefecture. For where people actually live and travel, see the cities below.
Shimane Prefecture, a subdivision of Japan, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 2.8°C / 37°F in January to 25.3°C / 77.5°F in August, with rainfall from 95 mm / 3.7 in to 249 mm / 9.8 in depending on the season (1775 mm / 69.9 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 2.8°C37°F | 121 mm4.8″ | — |
| February | 3.1°C37.6°F | 101 mm4″ | — |
| March | 6.2°C43.2°F | 119 mm4.7″ | — |
| April | 11.7°C53.1°F | 139 mm5.5″ | — |
| May | 16.2°C61.2°F | 142 mm5.6″ | — |
| June | 20°C68°F | 230 mm9.1″ | — |
| July | 24.3°C75.7°F | 249 mm9.8″ | — |
| August | 25.3°C77.5°F | 148 mm5.8″ | — |
| September | 21.1°C70°F | 209 mm8.2″ | — |
| October | 15.5°C59.9°F | 121 mm4.8″ | — |
| November | 10.2°C50.4°F | 101 mm4″ | — |
| December | 5.5°C41.9°F | 95 mm3.7″ | — |
Frequently asked questions
What is the best time to visit Shimane Prefecture?
Shimane Prefecture, Japan does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 25.3°C / 77.5°F, and the driest is December at 95 mm / 3.7 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Shimane Prefecture?
Shimane Prefecture, Japan has area-weighted monthly average temperatures ranging from 2.8°C / 37°F in January to 25.3°C / 77.5°F in August. Annual rainfall averages about 1775 mm / 69.9 in, with the wettest month being July (249 mm / 9.8 in) and the driest December (95 mm / 3.7 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Shimane Prefecture?
The hottest month in Shimane Prefecture is August, with an area-wide average temperature of 25.3°C / 77.5°F.
What is the coldest month in Shimane Prefecture?
The coldest month in Shimane Prefecture is January, with an area-wide average temperature of 2.8°C / 37°F.
When does it rain most in Shimane Prefecture?
The wettest month in Shimane Prefecture is July, averaging about 249 mm / 9.8 in of rainfall. The driest is December with about 95 mm / 3.7 in.