When To Go · Destination Guide

Aliwal Shoal and Umkomaas

Shark caves, classic wrecks, and Sardine Run energy on South Africa's KZN South Coast

Updated Feb 13, 2026 • 15 sources

When to go

Best time to visit Aliwal Shoal and Umkomaas

Aliwal Shoal sits in a humid subtropical zone with summer rainfall and a drier, cooler winter.

Best overall window

Drier air, cooler nights, water often around 20°C to 23°C.

Outside that window

Hotter and more humid with summer rain. Afternoon winds can reach 25 km/h and boat diving may cancel on rough days.

Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.

The overall row stays visible so you can compare it against the currently selected scope.

BestGoodTradeoffsMore variable

Scope	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Overall	Overall - Jan: Tradeoffs	Overall - Feb: Tradeoffs	Overall - Mar: Tradeoffs	Overall - Apr: Good	Overall - May: Best	Overall - Jun: Best	Overall - Jul: Best	Overall - Aug: Best	Overall - Sep: Best	Overall - Oct: Good	Overall - Nov: Good	Overall - Dec: Tradeoffs

These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.

Ragged-tooth shark season
Best for Scuba, Freedive
Jun to Nov
JanFebMarAprMayJunJulAugSepOctNovDec
Raggedtooth sharks congregate around overhangs and caves, especially at Raggies Cave.
Sardine Run (variable)
Best for Scuba, Freedive, Snorkel
May to Aug
JanFebMarAprMayJunJulAugSepOctNovDec
A winter migration event that can trigger bait balls, dolphin herding, and shark activity.
Humpback whale migration
Best for Scuba, Snorkel, Topside
Jun to Nov
JanFebMarAprMayJunJulAugSepOctNovDec
Humpbacks migrate along the KZN coast in winter and spring.
Warm-water shark dives
Best for Scuba
Dec to Mar
JanFebMarAprMayJunJulAugSepOctNovDec
In warmer months, some operators run baited shark dives targeting oceanic sharks, sometimes including tiger sharks.
Rays on sand patches
Best for Scuba, Snorkel
Year-round
JanFebMarAprMayJunJulAugSepOctNovDec
Sand patches and reef edges can produce sightings of rays and guitarfish throughout the year.

Winter is the headline season for sharks and whales, but it is also when cold fronts can bring swell.

Apr, Oct to Nov: Transition months with mixed swell and warming water 22°C to 25°C.
Dec to Mar: Hotter and more humid with summer rain. Afternoon winds can reach 25 km/h and boat diving may cancel on rough days.

Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.