Johannesburg Weather in May
South Africa · 30-year monthly averages
🌟 Great time to visit
May in Johannesburg is mild, with average daytime highs around 18°C (64°F) and nighttime lows near 5°C (42°F). Expect roughly 16mm of precipitation, and rain is rare.
Avg high
18°C
64°F
Avg low
5°C
42°F
Rainfall
16mm
very dry
Mean temp
11°C
52°F
🎒 What to pack
- light jacket
- layers for cool evenings
May vs the rest of the year
FAQ
- How hot is Johannesburg in May?
- May in Johannesburg is mild, with average daytime highs around 18°C (64°F) and nighttime lows near 5°C (42°F). Expect roughly 16mm of precipitation, and rain is rare.
- Does it rain a lot in Johannesburg in May?
- Johannesburg sees around 16mm of precipitation in May on average — very dry by global standards.
- Is May a good time to visit Johannesburg?
- May is one of the best months to visit Johannesburg — comfortable temperatures and manageable rainfall.