When do whales arrive in South Africa? Calendar by species and region
The honest seasonal picture
South African whale watching has a rhythm, but not a precise timetable. The question “when do whales arrive” has a reliable answer in broad terms — southern right whales come to the Western Cape from around June — but within that answer lies enough natural variability to frustrate anyone who has booked a flight specifically around a single week.
This guide lays out the seasonal calendar accurately, by species and by region, and makes clear the degree to which year-to-year variation should affect how you plan.
Southern right whales: the Western Cape story
Southern right whales (Eubalaena australis) are the species that define South African whale watching. Their common name comes from a grim piece of history — they were the “right” whale to hunt because they floated when killed and had high oil yields. Whaling reduced the southern right population to near-extinction by the mid-twentieth century. The current South African population is estimated at around 3,000 individuals and is growing slowly.
Arrival timeline
Late May to early June: the very first arrivals appear in Walker Bay and along the south coast of the Western Cape. These are typically pregnant females coming in to calve. Numbers are low but sightings are possible for observers who are specifically looking.
June: the season is properly underway along the Western Cape. Hermanus and Walker Bay typically hold a dozen or more whales by mid-June. De Hoop Nature Reserve (part of the whale trail section of the Western Cape coast) also holds early southern rights.
July: the population in Walker Bay increases. Calves born in June begin to appear near the surface alongside their mothers. Boat operations in Hermanus run reliably. Land-based sightings from the cliff path are consistent most days.
August: the peak season begins in earnest. Walker Bay can hold twenty or more individual whales simultaneously. The Hermanus cliff path and De Hoop become the two most productive land-based viewpoints on the planet for this species.
September: the height of the season. Southern rights breed, calf, and socialise throughout Walker Bay, along the Cape south coast, and — less densely — east of Cape Agulhas toward Mossel Bay. The calves produced in June are now large enough to perform breaching and lobtailing. September is the month with the most individual whale sightings, the most frequent surface-active behaviour, and the largest concentration. If you can only choose one month, this is it.
October: still excellent. Population in Walker Bay is high through most of the month but numbers begin declining after mid-October as whales start their southward migration toward sub-Antarctic feeding grounds.
November: the season ends. By mid-November most whales have departed. Occasional stragglers are visible through to late November but cannot be relied on.
December to May: southern right whales are largely absent from South African coastal waters. They are in their southern feeding grounds, primarily around South Georgia, the Crozet Islands, and the Kerguelen Plateau.
Regional spread along the Western Cape
The Walker Bay (Hermanus) concentration is the most famous and most accessible. Other significant Western Cape southern right locations include:
De Hoop Nature Reserve: a reserve 240 km east of Cape Town along the south coast. The De Hoop Vlei (a coastal lake) and the surrounding coast hold southern rights from June onward, sometimes in higher concentrations than Walker Bay. De Hoop has less visitor infrastructure but offers extraordinarily close land-based viewing from a remote coastline. The five-day Whale Trail hiking trail passes through the reserve; it is booked out for September a year in advance.
Gansbaai and Danger Point area: southern rights are regularly seen in the waters south and east of Gansbaai, in the approach to Dyer Island. The shark cage dive boat trips often encounter whales as a secondary sighting in season.
Betty’s Bay / Stony Point: the coastal road between Cape Town and Hermanus passes through Betty’s Bay, where southern rights are sometimes seen from shore in season. Combine with the African penguin colony at Stony Point.
Mossel Bay and the Garden Route: eastern limits of the reliable southern right range. Sightings from shore at Mossel Bay and along the Garden Route coast occur in September-October but are less predictable than the Walker Bay core area.
False Bay (Cape Town): southern rights enter False Bay in season and can be seen from the Boulders Beach area, Simon’s Town, and the Strand coastline. The False Bay sightings are a bonus for Cape Town visitors rather than the primary draw.
Year-to-year variability: the honest caveat
Southern right whale arrivals in Walker Bay vary by two to three weeks between years. The 2024 season saw the main influx arrive around 10-12 days later than the preceding three-year average. In 2019, the first significant population was present by late May; in 2022, the mid-June numbers were below historical average. No mechanism reliably predicts whether a given year will have early or late arrivals.
The practical implication: do not plan a Hermanus trip for a specific four-day window in late June based on an expectation of peak whales. Plan for a week or more, or visit in August and September when the season is reliably established regardless of when arrivals began.
Humpback whales: the KZN and east coast migration
Humpback whales (Megaptera novaeangliae) do not aggregate in South African coastal waters the way southern rights aggregate in Walker Bay. They migrate through, and “watching” them is largely a matter of being on the water or on a high vantage point during the migration windows.
Northward migration: June to September
Humpbacks move from their southern feeding grounds northward along the South African east coast from June onward, heading for tropical breeding grounds in the warm waters off Mozambique and Madagascar. The migration is most concentrated along the KZN coast in June and July. From a high cliff or lookout between Durban and St Lucia, blows and occasionally breaches can be seen from shore during this period.
Durban boat-based whale watching operates specifically during the migration window, June to September, targeting humpbacks in the waters off the KZN coast.
The KZN whale migration is closely tied, ecologically, to the Sardine Run. The same shoal of cold water that drives sardines up the coast in May-July also concentrates the baitfish that humpbacks feed on during their northward transit. A Sardine Run trip in June-July from the KZN south coast will often include humpback whale sightings as a component of the experience. See the sardine run guide for the full Aliwal Shoal picture.
Southward migration: November
Humpbacks return south from November onward. The southward migration is less concentrated and less visible than the northward pass — the whales are more spread out and moving more quickly toward feeding grounds. Occasional sightings from the Garden Route coast and the Eastern Cape occur in November and December.
Humpback calves
Humpback calves born in the tropical breeding grounds accompany their mothers on the southward migration. These young animals are sometimes the most visually spectacular part of the KZN winter whale experience — calves learning to breach are enthusiastic to the point of excess.
Bryde’s whales: the year-round resident
Bryde’s whales (Balaenoptera brydei) are the one South African species that requires no timing. They are resident in South African waters year-round, particularly in the cooler, productive upwelling areas of the Western Cape and the Agulhas Bank. They are baleen whales with three prominent ridges on the rostrum — the feature that most reliably distinguishes them from the similar sei whale.
Bryde’s whales surface irregularly and do not announce themselves with the predictable blows and breaching of southern rights or humpbacks. They are most often seen as incidental sightings during boat trips in the Cape waters — as a bonus encounter during a whale watching trip aimed at southern rights, or during a shark cage dive. Feeding events, when Bryde’s whales circle through shoals of small fish with open mouths, can occur very close to shore.
Blue whales and other species: occasional sightings
Blue whales (Balaenoptera musculus) pass through South African waters as part of their Southern Ocean migrations. Sightings are genuine but uncommon and cannot be planned around. The Crozet Islands, far to the south, support a significant feeding aggregation of blue whales in summer. Sperm whales and various beaked whale species occur in the deep offshore waters off South Africa’s west coast and are occasionally encountered on pelagic birding trips. Orcas are documented in South African waters and were the cause of the 2016-2018 great white shark exodus from Gansbaai — they have been observed hunting sharks and other dolphins along the Western Cape.
Regional summary: a planning table
| Region | Primary species | Window | Notes |
|---|---|---|---|
| Hermanus / Walker Bay | Southern right | Jun-Nov | Peak Sep; cliff-top viewing world-class |
| De Hoop | Southern right | Jun-Nov | Remote, limited facilities, Whale Trail |
| False Bay (Cape Town) | Southern right | Jun-Nov | Secondary location; bonus sightings |
| Garden Route coast | Southern right | Aug-Oct | Mossel Bay area; less reliable than Hermanus |
| KZN coast (Durban, Umkomaas) | Humpback | Jun-Sep | Migration; best from boat |
| KZN south coast | Humpback + other | Jun-Sep | Tied to sardine run season |
| Algoa Bay (Port Elizabeth) | Southern right, Bryde’s | Jul-Nov | Year-round Bryde’s; boat trips available |
| Plettenberg Bay | Southern right, humpback | Jul-Nov | Permitted boat watching; excellent |
Plettenberg Bay’s permitted boat-based whale watching cruise covers the Garden Route’s best whale watching window, particularly October-November when southern rights pass east.
Planning your timing
For the best southern right whale watching: September in Hermanus, staying at least four nights to account for variability in conditions and whale distribution.
For humpback migration: June or July in KZN, based in Durban or on the south coast.
For a combined whale and sardine run experience: late June or July along the KZN south coast, understanding that the sardine run itself is highly erratic and may not perform in a given year.
For flexibility: the Walker Bay season from mid-July onward is long enough — four months — that most visitors to the Western Cape between July and October will have whale encounters without special planning.
Frequently asked questions
Are whale watching sightings guaranteed?
No ethical operator guarantees sightings — whales are wild animals. In practice, during peak season in Walker Bay, sightings from the cliff path are reliable on most days, and boat trips return with sightings on the great majority of trips. In June or early July, a blank day is possible. Most reputable boat operators offer return trips at reduced cost if conditions produce nothing.
Is De Hoop better than Hermanus for whale watching?
De Hoop Nature Reserve has been recorded holding some of the highest densities of southern right whales anywhere — more per kilometre of coastline than Walker Bay in certain years. However, De Hoop is considerably harder to access, has minimal tourist infrastructure, and the accommodation is limited. For most visitors, Hermanus is the practical choice. For dedicated whale watchers willing to navigate the remoteness, De Hoop in September is extraordinary.
Can you see whales from Cape Town?
Yes, particularly from the False Bay side of the peninsula. Simon’s Town, Fish Hoek, and the Strand all offer seasonal southern right sightings from shore. These are incidental rather than a primary experience — if the reason to visit Cape Town is whale watching, Hermanus is more reliably productive.
What climate variables affect whale timing
The two-to-three week variability in whale arrival dates is driven primarily by sea surface temperature and ocean circulation patterns rather than air temperature or calendar date.
Southern right whales are believed to follow the position of the sub-Antarctic front — the oceanographic boundary between Southern Ocean water masses — as they move between summer feeding grounds and winter breeding areas. Shifts in the front’s position affect the timing and route of northward migration toward the South African coast.
Sea surface temperature in Walker Bay is also a factor. The whales seek inshore water within a temperature range that supports comfortable extended residency for calving and mating. In years when the Agulhas Current pushes unusually warm water into False Bay and Walker Bay, whale arrivals may be later as the animals wait for conditions to stabilise.
There is no public forecasting service that reliably predicts whether a given year will be early or late. The Cape Nature whale monitoring programme (which includes the Hermanus whale crier system) publishes seasonal updates, and local operators share sighting information through the Whale Watching South Africa network. Following these channels is the best near-real-time source of information about current-season whale presence.
Understanding southern right whale behaviour in Walker Bay
Observing southern right whale behaviour at Hermanus is more rewarding with some understanding of what you are seeing.
Spy-hopping: the whale rises vertically, holding its head and sometimes its upper torso clear of the water for several seconds before sinking back. This is believed to be visual orientation — the whale is looking at its environment. A spy-hopping southern right held at eye level with a cliff-path observer is looking at the cliffs, and possibly at the observer. The eye contact is real.
Breaching: the whale launches itself partially or fully clear of the water and re-enters with a sideways crash. The impact creates a white water explosion and, from nearby, a booming percussive sound. Breaching functions in communication — the splash can be seen from kilometres away — and may serve social bonding purposes in calves (they breach repeatedly, apparently for practice or play). Adults breach during active social interaction.
Lobtailing: the whale lifts its tail (fluke) clear of the water and slaps it on the surface repeatedly. The sound carries considerable distance. Lobtailing appears to be a signalling behaviour; the specific message is not well understood.
Sailing: the whale lifts its tail clear of the water and holds it there while the wind catches the underside of the fluke — effectively using the tail as a sail. This behaviour is documented in southern right whales and is rarely observed in other species. It is believed to be a resting position that uses wind to maintain orientation, but its exact function is debated.
Mating groups (surface active groups): the most dramatic and sometimes confusing behaviour to observe from the cliff path. A mating group involves a female with one or more males pursuing her, with multiple animals rolling, thrashing, and competing at the surface simultaneously. These groups can involve four to eight whales and produce extraordinary amounts of visual activity — flippers, flukes, and rostrals visible simultaneously.
Calves perform many of these behaviours at a smaller scale and with what appears to be purely playful motivation — practising the full behavioural repertoire of adults at an age when it seems to serve no functional purpose beyond exercise and play.
Whalewatching beyond Hermanus: lesser-known Western Cape sites
De Hoop Nature Reserve: approximately 240 km east of Cape Town along the south coast. The 16 km of coastline within De Hoop’s marine section has been documented holding some of the highest southern right densities per kilometre of coast in South Africa — higher than Walker Bay in some years. Access is limited to SANParks permit holders for the remote coastal sections; the De Hoop Vlei (coastal lake) viewpoint and the Whale Trail section are accessible to day visitors.
Kalk Bay and Simon’s Town (False Bay): southern rights enter False Bay in season. The viewpoint above Kalk Bay harbour and the naval-base cliffs at Simon’s Town both produce occasional whale sightings. These are proximity bonuses rather than primary whale watching destinations, but a Cape Town visitor who is not making the Hermanus trip should scan False Bay from these vantages in August-October.
Pearly Beach and Danger Point: the coastline between Danger Point (near Gansbaai) and Pearly Beach to the east sees southern rights in season. Less visited than Hermanus and with less infrastructure, but occasional from cliffs and beaches.
Robberg Peninsula, Plettenberg Bay: the eastern limit of reliable southern right range on the Garden Route. Plettenberg Bay’s permitted boat-based whale watching cruise is the most professional operation at this end of the range, with September-October the peak window for whale presence in the bay.
