SeasonMapHermanus weather in May
South Africa
May in Hermanus: nice, a little rain, with clean air — a great time to visit.
#9 of 12 months in Hermanus · #925 of 1383 destinations to visit in May · comfort 74/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hermanus in May
Other months in Hermanus
Hermanus's forum is upfront that January is the wrong month for the whale watching the town is famous for — the season runs June through December, peaking in August and September, so January visitors mostly miss out bar the occasional early mother-calf pair. Regulars say it's still worth the stop for the cliff path, galleries and cafes even without the whales.
Add your own note from Hermanus's card on the map.
Hermanus climate normals — May
| Daytime high | 21°C / 70°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 21°C / 70°F | |
| Sea temperature | 17°C / 62°F | 🧊 bracing |
| Rainfall | 57 mm / 2.2 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 11°C / 53°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 10.3 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hermanus in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Hermanus's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherHermanus's weather peaks December–February.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Hermanus — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Hermanus?
Hermanus in May — FAQ
- Is May a good time to visit Hermanus?
- May in Hermanus: nice, a little rain, with clean air — a great time to visit. It ranks #9 of 12 months for Hermanus on SeasonMap's comfort score (74/100).
- What is the weather like in Hermanus in May?
- In May, Hermanus averages a daily high of 21.2°C and a low of 12°C, with about 56.8 mm of rain over roughly 6.3 rainy days.
- What is the air quality in Hermanus in May?
- Hermanus has a mean US Air Quality Index of about 34 in May.
Other months in Hermanus
Compare Hermanus in May
Warmer or cooler than Hermanus in May
Similar destinations in Southern Africa — May
Within 300 km: Stellenbosch's The oaks turn around 15 Apr – 5 Jun.