Plettenberg Bay weather in August

August in Plettenberg Bay: nice, a little rain, with clean air — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Plettenberg Bay🇿🇦 South Africa · Cape & Garden Route · Beach77
  1. 89Jan
  2. 87Feb
  3. 84Mar
  4. 82Apr
  5. 79May
  6. 73Jun
  7. 73Jul
  8. 77Aug
  9. 79Sep
  10. 81Oct
  11. 83Nov
  12. 88Dec

#10 of 12 months in Plettenberg Bay · #776 of 1413 destinations to visit in August · comfort 77/100 (tier B)

Days
18°C
Nights
10°C
Wet days
8
Sun
9.4 h
Humidity
71%
Daylight
11 h
Plettenberg Bay, South Africa
Photo: Jean van der Meulen · Pexels

Traveller notes on Plettenberg Bay in August

Other months in Plettenberg Bay

Plettenberg Bay's forum describes July as about as wintry as the Garden Route gets - chillier and windier than the rest of the year - but posters were quick to add that South Africa's winter isn't a washout: some days hit a sunny 25C, others turn cold, windy and wet, and it genuinely doesn't rain for days on end. A few visitors even reported swimming and wearing short sleeves during a June/July stay when a warm spell lined up. Pack for both extremes rather than assuming either a beach day or a full winter coat is guaranteed.
GardenRouteWinterRegular · July · 1 month ago · Read more on Tripadvisor ↗
Forum posters name Plettenberg Bay as one of the better bets on South Africa's eastern stretch for good weather with a lower rain chance in January, though they warn the first two weeks of the month get genuinely busy with South African families on school holiday. Beach options vary by character: Robberg Beach has strong undercurrents but makes a nice walk, Central Beach is calmer and family-friendly with a small lagoon to paddle in, and Lookout Beach offers a sheltered lagoon that changes with the tide. Beyond the beach, posters point to whale and dolphin-watching boat tours, cape fur seal colony visits, bungee jumping and the Robberg Peninsula nature reserve as the main draws for a January visit.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Plettenberg Bay's card on the map.

Plettenberg Bay climate normals — August

Daytime high18°C / 64°F😎 nice
Nighttime low10°C / 51°F
Feels like (high)16°C / 61°F
Sea temperature16°C / 61°F🧊 bracing
Rainfall43 mm / 1.7 in🌦 some rain
Rainy days8 days
Humidity71%💧 humid
Dew point8°C / 47°F
Sunshine9.4 h/day
Daylight10.9 h
Wind22 km/h / 14 mph
Air quality (US AQI)28🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Plettenberg Bay 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.

Quietschool holidays in 4 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Plettenberg Bay'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 weatherPlettenberg Bay's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

JFMAMJJASOND

What's on in Plettenberg Bay in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Whale season

    1 Jul – 15 Dec · usually

    The official whale season runs July to December, with southern right whales through the middle of it and migrating humpbacks arriving with their calves from early November. Bryde's whales and dolphins are around the bay year-round. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Plettenberg Bay — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Plettenberg Bay?

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Plettenberg Bay in August — FAQ

Is August a good time to visit Plettenberg Bay?
August in Plettenberg Bay: nice, a little rain, with clean air — a great time to visit. It ranks #10 of 12 months for Plettenberg Bay on SeasonMap's comfort score (77/100).
What is the weather like in Plettenberg Bay in August?
In August, Plettenberg Bay averages a daily high of 17.9°C and a low of 10.4°C, with about 43.3 mm of rain over roughly 8.4 rainy days.
What is the air quality in Plettenberg Bay in August?
Plettenberg Bay has a mean US Air Quality Index of about 28 in August.

Within 300 km: Knysna's Southern right whales around 15 Jun – 15 Nov, and Port Elizabeth's Whales in Algoa Bay around 1 Jun – 30 Nov.