SeasonMapHermanus weather in August
South Africa
August in Hermanus: nice, a little rain, with clean air — a great time to visit.
#10 of 12 months in Hermanus · #877 of 1383 destinations to visit in August · comfort 72/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hermanus in August
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 — August
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 18°C / 64°F | |
| Sea temperature | 15°C / 58°F | 🥶 cold sea |
| Rainfall | 70 mm / 2.8 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 9 h/day | |
| Daylight | 10.9 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hermanus in August
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.
BusyKalfiefees, school holidays in 4 of the markets that fill it(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).
Toughest weatherHermanus's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Hermanus in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Southern right whales
1 Jun – 30 Nov · usuallyWhale seasonSouthern rights come into Walker Bay to calve and stay close enough to the cliff path to watch without a boat. The town keeps a whale crier who blows a kelp horn when they are in; September and October are the thick of it.
- Festival
Kalfiefees
30 Jul – 12 Aug · usuallyMajor festivalCrowdedThe Overstrand's arts festival — theatre, music and art — takes over Hermanus in the first days of August, timed with the Women's Day weekend and the first calves in the bay. Source ↗
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 August — FAQ
- Is August a good time to visit Hermanus?
- August in Hermanus: nice, a little rain, with clean air — a great time to visit. It ranks #10 of 12 months for Hermanus on SeasonMap's comfort score (72/100).
- What is the weather like in Hermanus in August?
- In August, Hermanus averages a daily high of 18.9°C and a low of 10.1°C, with about 70.1 mm of rain over roughly 9.7 rainy days.
- What is the air quality in Hermanus in August?
- Hermanus has a mean US Air Quality Index of about 36 in August.
Other months in Hermanus
Compare Hermanus in August
Warmer or cooler than Hermanus in August
Similar destinations in Southern Africa — August
Within 300 km: Cape Town's Southern right whales around 1 Jun – 30 Nov, and Stellenbosch's Stellenbosch Wine Festival on 31 Jul – 1 Aug.