Warm in Mar
27°C average high
avg high · 16° at night
25°C+ on 7 in 10 days
South Africa
Cape Town weather in March
Is it warm? Yes. March in Cape Town is warm: afternoons average 24°C and nights 16°C. Most days (80%) peak between 20°C and 29°C.
Warm · average high
24°C
25°C or more on about four in ten days; 20°C or more on about nine in ten days.
- Average low16°overnight
- Sea15°average, 2023–2025
- Rainy days328 mm in the month
- SkySome cloud38% cloud · 45% clear days
How warm it really gets
Every March afternoon from 2011–2025: 465 days. Most (80%) peaked between 20° and 29°.
March, year by year
The average March high in each year. The warmest, 2015, averaged 26°C; the coolest, 2023, 23°C.
Compared with home
Average March highs. Expect rain on about 3 days (28 mm in a typical month).
- Cape Town24°
- London11°
- Cork10°
- Dublin10°
- Manchester10°
- Belfast9°
- Glasgow9°
Warmer in March, not much further
Flying times are estimates from Dublin; Cape Town is about 12h 45m.
Warm in Mar
26°C average high
avg high · 14° at night
25°C+ on 6 in 10 days
Hot in Mar
30°C average high
avg high · 21° at night
25°C+ on 9 in 10 days
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology