October and November
Go nowSpring: whales still here, and the crush has not started
The best window of the year. Warm days, the flowers out, the whale season still running and the December crowds still weeks away. Prices are moderate, everything is open, and the sea is warming up. If you can only pick one pair of months on this coast, pick these.
March and April
Go nowAutumn: warm sea, empty beaches, low prices
The sea is at its warmest after the summer and the beaches are empty because the holidays are over. Stable, mild weather and the best value of the year, with Easter as the one exception — it moves between late March and April and fills the coast for a week wherever it lands.
August and September
Worth it, butPeak whale season, and the end of winter
The middle of the whale season, with the best land-based sightings of the year at Plettenberg Bay and Hermanus. Cool, sometimes wet, and the sea is too cold for swimming, but the route is quiet and cheap and the forest walks are at their best. Come for the whales, not the beach.
February
Worth it, butHot, and emptying out after the holidays
The South African holidays are over and the coast exhales, with hot days and warm water. Prices fall sharply from January and availability returns. It can be genuinely hot inland at Oudtshoorn. A good compromise if you want summer without the crush.
May
Worth it, butThe quiet shoulder, with whales arriving
Mild days, very few visitors, low prices, and the first whales beginning to appear towards the end of the month. The sea is cooling and the days are shortening, but walking and driving conditions are excellent. Underrated.
June and July
Worth it, butWinter: whales, forest and rain
Cool and often wet, with the whale season under way and the forest at its greenest. South African winter school holidays fall in this window and lift prices for a couple of weeks. Days are short. Excellent for whales and walking, poor for anything involving the beach.
December and January
Think twiceThe best weather of the year, and the worst value
Hot, dry, long days and warm sea — and the South African summer school holidays, when the entire country drives to this coast. Accommodation is booked out months ahead at double or triple the rate, Plettenberg Bay and Knysna are packed, and restaurants need reservations. The weather is not worth the price.