Temperature
Warm by day, mild at night.
79°Ftypical December high
Typical range
Warm days and plenty of sun.
Warm by day, mild at night.
A few rainy days. About 6 wet days this month.
Plenty of sun this month.
Warm days with mostly dry air.
In December, afternoons feel about 74° and nights feel near 63°.
Partly cloudy skies this month.
Calm winds are typical in December.
December late afternoons are around 76°F, easing to about 70°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 81 | 65 | 1.0 | 6 | 12.8 | 70 | 69 |
| Feb | 82 | 65 | 0.9 | 5 | 11.9 | 71 | 69 |
| Mar | 79 | 63 | 1.2 | 6 | 10.7 | 73 | 68 |
| Apr | 75 | 58 | 1.7 | 6 | 9.7 | 76 | 66 |
| May | 70 | 54 | 2.3 | 8 | 8.6 | 78 | 64 |
| Jun | 65 | 51 | 3.3 | 10 | 8.2 | 79 | 63 |
| Jul | 64 | 49 | 3.2 | 10 | 8.4 | 79 | 61 |
| Aug | 65 | 49 | 3.0 | 10 | 9.0 | 79 | 61 |
| Sep | 67 | 52 | 2.1 | 8 | 10.1 | 78 | 62 |
| Oct | 72 | 56 | 1.7 | 7 | 11.3 | 75 | 63 |
| Nov | 75 | 59 | 1.7 | 6 | 12.1 | 72 | 65 |
| Dec | 79 | 62 | 1.0 | 6 | 12.9 | 70 | 67 |
Similar climates
Want a side-by-side climate view? Compare Hermanus with Garden Route.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology