Click on a day for an hourly weather forecast
The temperatures in Hermanus in May are usually low and can range between 14°C and 19°C.
You can expect about 3 to 8 days of rain in Hermanus 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 Hermanus in May 2025.
If you’re planning to visit Hermanus in the near future, we highly recommend that you review the 14 day weather forecast for Hermanus before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 23° / 18° | 2 | 29 | 0 | 31 mm | Perfect | Hermanus in January |
| February | 23° / 18° | 1 | 27 | 0 | 27 mm | Perfect | Hermanus in February |
| March | 23° / 18° | 2 | 29 | 0 | 40 mm | Perfect | Hermanus in March |
| April | 21° / 16° | 3 | 27 | 0 | 48 mm | Good | Hermanus in April |
| May | 19° / 14° | 3 | 28 | 0 | 65 mm | Good | Hermanus in May |
| June | 17° / 12° | 4 | 26 | 0 | 94 mm | Good | Hermanus in June |
| July | 16° / 12° | 4 | 27 | 0 | 74 mm | Good | Hermanus in July |
| August | 16° / 11° | 4 | 27 | 0 | 78 mm | Good | Hermanus in August |
| September | 17° / 12° | 2 | 28 | 0 | 44 mm | Good | Hermanus in September |
| October | 19° / 14° | 2 | 29 | 0 | 36 mm | Good | Hermanus in October |
| November | 20° / 15° | 2 | 28 | 0 | 45 mm | Good | Hermanus in November |
| December | 22° / 17° | 2 | 29 | 0 | 26 mm | Good | Hermanus in December |