Johannesburg in may: average Weather, Temperature and Climate
Weather in Johannesburg in may 2025
The weather in Johannesburg in the month of may comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
perfect weather UV index: 6
Weather at 6am
59°F
Clear/Sunny
84% of time
12%
3%
2%
Weather at 12pm
72°F
Clear/Sunny
80% of time
14%
5%
1%
Weather at 6pm
63°F
Clear/Sunny
79% of time
13%
7%
1%
Weather at 3am
54°F
80%
11%
6%
3%
Evolution of daily average temperature and precipitation in Johannesburg in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Johannesburg in may.
The climate of Johannesburg in may is perfect
The weather in may in Johannesburg is quite dry ; it hardly ever rains (0.6in of precipitation over 1 days).
The climate good around this city may. Temperatures are up to 74°F. In the morning the temperature drops to 59°F. Thus, the mean temperature average on this month of may in Johannesburg is 67°F. These temperatures are far removed from those records observed in Johannesburg in may with a maximum record of 88°F in 2019 and a minimum record of 40°F in 2011. You can plan to have about 29 days with temperatures over 65°F, or 94% of time.
Day length in Johannesburg in may is 10:50. The sun rises at 06:39 and sunset is at 17:29.
With good weather conditions, may is recommended to go there.
Seasonal average climate and temperature of Johannesburg in may
Check below seasonal norms These statistics are generated from the weather statements earlier years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 67°F | ||||
| Highest temperature | 74°F | ||||
| Lowest temperature | 59°F | ||||
| Highest record temperature | 88°F (2019) | ||||
| Lowest record temperature | 40°F (2011) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 29 day(s) (94%) | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.6in | ||||
| Number of days with rainfall | 1 day(s) (3%) | ||||
| Record daily rainfall | 0.8in (2016) | ||||
| Other climate data | |||||
| Humidity | 56% | ||||
| Visibility | 9.86km | ||||
| Cloud cover | 9% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 9 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:39 | ||||
| Time of sunset | 17:29 | ||||
| Length of day | 10:50 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last may?
Here is the day by day recorded weather in Johannesburg in may 2024:
61°F to 81°F
63°F to 81°F
61°F to 79°F
61°F to 77°F
59°F to 77°F
61°F to 79°F
61°F to 77°F
63°F to 81°F
61°F to 79°F
63°F to 79°F
63°F to 81°F
63°F to 77°F
58°F to 74°F
58°F to 72°F
59°F to 76°F
59°F to 76°F
59°F to 79°F
59°F to 77°F
59°F to 76°F
61°F to 76°F
59°F to 77°F
59°F to 76°F
56°F to 72°F
58°F to 74°F
56°F to 70°F
56°F to 72°F
56°F to 72°F
56°F to 68°F
54°F to 70°F
56°F to 68°F
56°F to 68°F
Map: other cities in South Africa in may
Cities near Johannesburg:
| Soweto in may | perfect weather |
| Pretoria in may | perfect weather |
| Rustenburg in may | perfect weather |
| Potchefstroom in may | good weather |
| Standerton in may | good weather |
| Pilanesberg National Park in may | perfect weather |
| Modimolle in may | perfect weather |
| Thabazimbi in may | good weather |
| Ermelo in may | good weather |
| Marakele National Park in may | good weather |
| Welkom in may | good weather |
| Madikwe Game Reserve in may | perfect weather |
Click over cities on the map for information about the weather in may.
Johannesburg
perfect weather
good
tolerable
bad
very bad
Weather data for Johannesburg in may:
Weather data for Johannesburg for may are derived from an average of the weather forecast since 2009 in Johannesburg. There is a margin of error and these forecasts are to be considered as general information only. The weather in Johannesburg can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Johannesburg.