A coastal city steeped in imperial history — where the eastern terminus of China's Great Wall plunges into the Bohai Sea, sandy beaches stretch for kilometres, and Beidaihe has welcomed China's leaders as a summer retreat for generations.
| Month | High (°C) | Low (°C) | Rainfall | Sea Temp | Notes |
|---|---|---|---|---|---|
| Jan | 0 | -9 | Low | 4°C | Cold, clear, very quiet |
| Feb | 3 | -7 | Low | 3°C | Cold, frozen coast possible |
| Mar | 10 | 0 | Low | 5°C | Spring begins, breezy |
| Apr | 18 | 7 | Moderate | 9°C | Cherry blossom, pleasant |
| May | 24 | 13 | Moderate | 14°C | Best birdwatching |
| Jun | 28 | 18 | Moderate | 20°C | Best all-round month |
| Jul | 31 | 22 | High | 25°C | Peak season, very busy |
| Aug | 30 | 22 | High | 26°C | Hottest, most crowded |
| Sep | 26 | 15 | Moderate | 23°C | Warm sea, quiet beaches |
| Oct | 18 | 8 | Low | 18°C | Golden autumn colours |
| Nov | 9 | 1 | Low | 13°C | Quiet, cooling fast |
| Dec | 2 | -7 | Low | 7°C | Cold, many venues closed |