Bath wears an unpredictable face when it comes to weather. Long cold winters are peppered with mild sunny days; clear and calm mornings can quickly turn ugly and just when the damp seems to have settled in, the sun comes out and things start to thaw. Keeping this in mind, May to September is generally fine and warm, spring is mild and winter, though snow is rare, provides cold, clear, frosty days. The icy rain comes down hardest from December through to February.
| Low temp (°C) | High temp (°C) | Sunshine (hours) | Rainfall (mm) | Humidity (am) | Humidity (pm) | |
|---|---|---|---|---|---|---|
| Dec | 2 | 6 | 6 | 86 | 80 | |
| Nov | 4 | 10 | 8 | 86 | 76 | |
| Oct | 7 | 14 | 11 | 86 | 70 | |
| Sep | 9 | 18 | 4 | 87 | 64 | |
| Aug | 11 | 21 | 7 | 85 | 61 | |
| Jul | 11 | 18 | 9 | 83 | 59 | |
| Jun | 9 | 18 | 4 | 83 | 60 | |
| May | 6 | 15 | 4 | 82 | 57 | |
| Apr | 3 | 13 | 2 | 84 | 60 | |
| Mar | 3 | 11 | 2 | 84 | 68 | |
| Feb | 2 | 8 | 4 | 84 | 70 | |
| Jan | 3 | 7 | 12 | 85 | 77 |