Cape Town Weather by Month: The Honest Table

Cape Town weather by month is not the tidy "summer good, winter bad" story most guides tell. The city runs on a south-easterly wind called the Cape Doctor, sits between two oceans that differ by six degrees on the same afternoon, and packs its wettest weeks into June and July while the rest of the southern hemisphere is freezing. Here is the honest table, month by month, with day temperatures, rain, wind and crowd levels, from a local operator who drives these routes in every kind of weather.

The honest table, month by month

A few things to read into that before you trust it. The temperatures are day highs in the city bowl; nights run roughly ten degrees cooler, and the mountain and the False Bay side can sit a few degrees off either way at the same hour. "Rain" means likelihood, not an all-day downpour: even in July the wet usually arrives in two or three hour fronts, then clears. The wind column matters more than visitors expect, because the Cape Doctor can sandblast an Atlantic beach by early afternoon while the False Bay coast stays calm. Crowds track the South African school calendar as much as the European one, so the December to mid-January window and the two weeks around Easter feel busier than the raw weather suggests. Treat anything beyond a three-day forecast as a rough guide. This coast changes its mind fast.

This page is the reference sheet: temperatures, rain, wind and what to pack for each stretch of the year. If what you actually need is help choosing a month — whales versus harvest versus crowds versus budget — our when to visit Cape Town guide walks through that decision properly.

The dry months: November to March

Day highs run 26 to 29°C at the January–February peak, rain is close to zero for weeks at a time, and the south-easter is the real weather story. On a strong Cape Doctor day the wind hits 40 to 60 km/h by early afternoon, which blows out the Atlantic beaches and shuts the cable car while the False Bay side stays calm. Sea temperature is the standing surprise: 13 to 16°C on the Atlantic side all summer, 18 to 20°C in False Bay. Nights sit around 16 to 18°C, and the wind chill on the coast after dark is real.

Pack for sun and wind, not just heat: high-SPF sunscreen, a cap that will not fly off, and a light windproof layer for evenings. Full seasonal lists are in our Cape Town packing guide.

The wet months: June to August

June and July are the rainiest months of the year, with day highs of 17 to 18°C and nights down to 7 or 8°C. The rain arrives as cold fronts off the Atlantic every few days rather than constant drizzle: a front means two or three hours of hard rain and north-westerly wind, then it clears, often to a bright, still day. Snow dusts the higher Boland peaks once or twice most winters. After a front the mountain passes fog up, some trail surfaces go slick, and the cable car closes in strong wind or low cloud.

Pack a proper rain jacket, a warm mid-layer and shoes with grip. Indoor heating is weaker than northern Europeans expect, so a warm layer for evenings inside is not a joke.

The shoulder months: April, May, September, October

These four months are the transition zones on the table. April and May cool from about 23°C down to 20°C as the first fronts arrive — April usually stays mostly dry, May is when the wet season properly starts. September and October run the film in reverse: rain tapering off, highs climbing from 19 to 21°C, and a window of relatively still air before the south-easter builds again in November. Mornings and evenings in all four months want a jacket; midday can still be T-shirt weather.

Packing here is about layers: summer kit and a rain shell can both earn their place in the same week.

What the weather means for getting around

The season changes how you should move, not just what you pack. In the dry months the wind decides which coast is worth driving to on a given afternoon, and the roads to Table Mountain and the wine valleys clog at peak times — most guests skip the rental queue and book a direct airport transfer to Stellenbosch for wine-country days. In the wet months the priority flips to a vehicle and driver that handle fogged-up passes and slick surfaces. From June to November the coastal runs carry the whale-season traffic, and the Hermanus transfer books out around the spring peak. The team at Commander Shuttle drives these routes year round, so the call on which beach, which pass, or whether the cable car is even running is built into the trip rather than left to you and a weather app. If fleet and route detail matters for a larger group or a multi-stop day, the services page lays out what fits.

Pick your month from the table, then book the transfers around it so a surprise cold front or a blown-out beach day costs you a change of plan, not a lost afternoon.