Weather in Cape Town in April
South Africa · 20-year averages, April
Prime time. If you get to pick your dates, April is the one. Highs average 19.6 °C, lows 16.2 °C, and rain falls on 7 days — nothing in the month is working against you.
April ranks 6 of 12 in Cape Town: past the worst of the year but short of February, which is the month to book if the dates are open.
Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average April reaches 30 °C; the day barely swings — 3.4 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 26.8 °C and the coldest night fell to 12.8 °C, and the wettest single day dropped 35 mm — roughly 95% of the month's rain in one day.
April is moderately variable: 7 mm in the driest year against 73 mm in the wettest, around an average of 37 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.
Wind sits around 16.7 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 80%, high enough to notice on the warm days without dominating them.
How April sits in the year
Temperatures hold steady either side: 21.1 °C in March, 19.6 here, 18 in May. Nothing about the timing within the month matters much.
Daylight in April
11.3 hours of daylight, losing 1 hours across the month. That is between Cape Town's extremes of 14.4 and 9.9 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 19.2 °C in April — swimmable, but it takes a moment to commit. The sea peaks at 20.8 °C in February and bottoms out at 16.5 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself. April is the value pick for Cape Town: it scores within 11 points of February without carrying February's prices.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Cape Town versus nearby
If Cape Town is one option among several, the nearby comparison is worth making. Gqeberha is close enough to be a coin toss — 3.2 °C warmer, the same number of rain days. Pietermaritzburg is close enough to be a coin toss — 5.2 °C warmer, 4 days more rain.
So: April works, with February the better month by 11 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Cape Town
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 21.7 | 18.5 | 3 | 14 | 78 | 14.2 | 20.6 | 95 |
| February | 22.1 | 18.7 | 2 | 9 | 79 | 13.3 | 20.8 | 97 |
| March | 21.1 | 17.7 | 4 | 17 | 79 | 12.4 | 20.5 | 94 |
| April | 19.6 | 16.2 | 7 | 37 | 80 | 11.3 | 19.2 | 86 |
| May | 18 | 15.1 | 10 | 51 | 81 | 10.4 | 18.5 | 76 |
| June | 16.5 | 13.8 | 12 | 91 | 79 | 9.9 | 17.4 | 67 |
| July | 15.8 | 13.1 | 11 | 81 | 80 | 10.1 | 16.7 | 66 |
| August | 15.6 | 13 | 12 | 76 | 79 | 10.8 | 16.5 | 64 |
| September | 16.5 | 13.6 | 9 | 40 | 79 | 11.8 | 16.6 | 73 |
| October | 17.9 | 14.6 | 6 | 31 | 79 | 12.9 | 17.2 | 84 |
| November | 19.1 | 15.8 | 5 | 30 | 78 | 13.9 | 18.2 | 88 |
| December | 20.7 | 17.5 | 3 | 12 | 78 | 14.4 | 19.8 | 95 |
See all twelve months in Cape Town, or where else to go in April.
Planning the rest of the trip
- Flight time to Cape Town how long you are actually in the air
- Cape Town time zone and the difference from home
- Days until your trip count down to the departure date