Monthly climate guide
Hermanus weather in August
With highs near 17°C (62°F) and lows around 10°C (50°F), August feels mild in Hermanus. Rainfall averages about 66 mm (some rain) and the sky is a mix of sun and cloud. Daytime highs are about the same as July and 2°C cooler than September.
What stands out in August
- Just 270 km apart, but Hermanus runs about 3°C cooler than Mossel Bay this month.
- In Hermanus, August is late winter — the seasons are reversed south of the equator.
- Only one month is cooler in Hermanus than August.
- Rain is above Hermanus's usual level, by about 55%.
Avg high
17°C
62°F
Avg low
10°C
50°F
Rainfall
66 mm
some rain
Humidity
80%
relative
Sky
40%
cloud · a mix of sun and cloud
Hermanus weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 26°C / 78°F | 18°C / 64°F | 32 mm | 71% | 34% |
| February | 26°C / 78°F | 17°C / 63°F | 23 mm | 72% | 31% |
| March | 24°C / 75°F | 16°C / 61°F | 40 mm | 75% | 37% |
| April | 22°C / 72°F | 14°C / 57°F | 32 mm | 75% | 35% |
| May | 20°C / 67°F | 13°C / 55°F | 35 mm | 78% | 41% |
| June | 17°C / 63°F | 11°C / 51°F | 81 mm | 78% | 42% |
| July | 17°C / 62°F | 10°C / 50°F | 66 mm | 80% | 38% |
| August | 17°C / 62°F | 10°C / 50°F | 66 mm | 80% | 40% |
| September | 18°C / 65°F | 11°C / 52°F | 42 mm | 77% | 42% |
| October | 21°C / 69°F | 13°C / 55°F | 43 mm | 75% | 41% |
| November | 22°C / 72°F | 14°C / 57°F | 36 mm | 72% | 41% |
| December | 24°C / 76°F | 16°C / 61°F | 16 mm | 71% | 36% |
What to pack for August
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is August a good time to visit Hermanus?
Compare the months in the chart above to find your ideal window.
Best time to visit Hermanus →Other South Africa cities in August
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Hermanus weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/south-africa/hermanus/august
<a href="https://weathercompare.eu/weather/south-africa/hermanus/august">Hermanus weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/south-africa/hermanus" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Hermanus weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/south-africa/hermanus/august">Hermanus weather in August</a> – WeatherCompare</p>
Hermanus in August: quick answers
Is August a good time to visit Hermanus?
August is a reasonable time for Hermanus: highs around 17°C and about 66 mm of rain, though not one of the three best months.
How warm is Hermanus in August?
Average highs are about 17°C (62°F) and average lows about 10°C (50°F), based on 10 years of daily data.
Does it rain a lot in Hermanus in August?
Hermanus typically gets around 66 mm of rain in August — some rain.
Figures are long-term averages for the area around Hermanus (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.