Cape Town weather in May
May in Cape Town: nice, a little rain, with very humid — an excellent time to visit.
#9 of 12 months in Cape Town · #282 of 604 destinations to visit in May · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cape Town climate normals — May
| Daytime high | 19°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 53°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 48 mm / 1.9 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 10.4 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 78 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cape Town in May — FAQ
- Is May a good time to visit Cape Town?
- May in Cape Town: nice, a little rain, with very humid — an excellent time to visit. It ranks #9 of 12 months for Cape Town on SeasonMap's comfort score (82/100).
- What is the weather like in Cape Town in May?
- In May, Cape Town averages a daily high of 19.3°C and a low of 11.7°C, with about 47.7 mm of rain over roughly 6.2 rainy days.
- What is the air quality in Cape Town in May?
- Cape Town has a mean US Air Quality Index of about 78 in May.