Click on a day for an hourly weather forecast
The temperatures in South London in May are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in South London during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in South London in May 2025.
If you’re planning to visit South London in the near future, we highly recommend that you review the 14 day weather forecast for South London before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 3° | 7 | 20 | 4 | 67 mm | Awful | South London in January |
| February | 8° / 3° | 8 | 16 | 5 | 64 mm | Awful | South London in February |
| March | 11° / 4° | 5 | 24 | 2 | 52 mm | Bad | South London in March |
| April | 14° / 6° | 4 | 25 | 1 | 43 mm | Good | South London in April |
| May | 17° / 9° | 5 | 27 | 0 | 59 mm | Good | South London in May |
| June | 20° / 12° | 4 | 26 | 0 | 76 mm | Good | South London in June |
| July | 22° / 14° | 5 | 26 | 0 | 65 mm | Good | South London in July |
| August | 22° / 14° | 5 | 26 | 0 | 72 mm | Good | South London in August |
| September | 20° / 12° | 3 | 27 | 0 | 44 mm | Good | South London in September |
| October | 15° / 10° | 6 | 25 | 0 | 73 mm | Good | South London in October |
| November | 11° / 6° | 6 | 23 | 0 | 65 mm | Ok | South London in November |
| December | 8° / 4° | 7 | 21 | 3 | 76 mm | Awful | South London in December |