Cape Town Weather in May
May in Cape Town typically sees daytime highs of 20°C (68°F) and nighttime lows of 12°C (54°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Cape Town in May
Looking at the last 30 years, the data shows about 11 days with rain, averaging 80 mm (3.1 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Cape Town in May
May is a perfect month in Cape Town, with 20°C (68°F) during the day and 12°C (54°F) at night. Conditions are often most pleasant around the middle of the day. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Cape Town in May
The city usually sees around 205 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Cape Town in May
Wind speeds average 3 m/s (6 knots) during May. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.
Average water temperature in May
With water at 16°C (61°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Cape Town's climate page.
Cape Town Temperature in May
Min Temperature
12°C (54°F)
Max Temperature
20°C (68°F)
Water Temperature
16°C (61°F)
Chance of Rain
37%
Precipitation
80 mm (3.1 in)
Rainy days
11 days
Humidity
81%
Windspeed
3 m/s (6 knots)
Sunshine
205 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cape Town typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 12°C (54°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Cape Town in May
Browse day-by-day weather records for Cape Town spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cape Town historical weather extremes in May
Based on 22 years of weather observations in Cape Town between 2004 and 2026, these are the recorded extremes.
- Cape Town recorded its highest May temperature of 33°C (91°F) on May 16, 2022.
- The lowest daytime temperature in May was 14°C (57°F), recorded on May 25, 2023.
- Cape Town registered its coldest May night on May 24, 2006, with temperatures dropping to 3°C (37°F).
Best Places in South Africa in May
Find out more about the weather in South Africa and which places have the best travel conditions in this month. See all of South Africa in May →
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What to Wear in Cape Town in May
For Cape Town in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 16°C (61°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Cape Town in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our Cape Town's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cape Town climate overview or explore weather in South Africa.
