Johannesburg, South Africa Hourly Forecast
Johannesburg temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 3 PM - around 67°
- Coolest hour: 7 AM - around 52°
- Rain risk: low all day (peaks at 3%)
- UV peak: 12 PM at index 6 - sun protection recommended
- Windiest: 1 AM at 8 mph
Johannesburg hourly weather - Saturday, August 8
In Johannesburg, expect a high near 67°F (19°C) around 3 PM and a low of 52°F (11°C) near 7 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 57° | 49° | 1% | 7 mph NNE | 30% | 0 | |
| 1 AM | Smoky haze | 55° | 49° | 1% | 8 mph NNE | 44% | 0 | |
| 2 AM | Clear | 54° | 49° | 2% | 8 mph NNE | 52% | 0 | |
| 3 AM | Clear | 53° | 48° | 3% | 8 mph N | 55% | 0 | |
| 4 AM | Clear | 53° | 48° | 3% | 7 mph N | 58% | 0 | |
| 5 AM | Clear | 52° | 49° | 3% | 6 mph N | 58% | 0 | |
| 6 AM | Clear | 52° | 49° | 3% | 5 mph N | 58% | 0 | |
| 7 AM | Sunny | 52° | 50° | 3% | 3 mph N | 58% | 0 | |
| 8 AM | Sunny | 54° | 50° | 2% | 4 mph NNW | 51% | 1 | |
| 9 AM | Sunny | 56° | 51° | 1% | 4 mph NNW | 44% | 2 | |
| 10 AM | Sunny | 59° | 53° | 1% | 4 mph NW | 37% | 4 | |
| 11 AM | Sunny | 62° | 56° | 1% | 3 mph NW | 32% | 5 | |
| 12 PM | Sunny | 64° | 59° | 0% | 3 mph WNW | 27% | 6 | |
| 1 PM | Sunny | 66° | 60° | 1% | 2 mph NW | 24% | 6 | |
| 2 PM | Sunny | 67° | 61° | 0% | 2 mph NW | 22% | 4 | |
| 3 PM | Sunny | 67° | 61° | 0% | 2 mph NNW | 20% | 2 | |
| 4 PM | Sunny | 67° | 61° | 0% | 2 mph NNW | 20% | 1 | |
| 5 PM | Sunny | 66° | 61° | 0% | 2 mph NW | 20% | 0 | |
| 6 PM | Clear | 65° | 59° | 0% | 2 mph NW | 21% | 0 | |
| 7 PM | Clear | 64° | 58° | 0% | 2 mph WNW | 22% | 0 | |
| 8 PM | Smoky haze | 62° | 57° | 0% | 2 mph WSW | 25% | 0 | |
| 9 PM | Smoky haze | 61° | 55° | 1% | 2 mph W | 27% | 0 | |
| 10 PM | Smoky haze | 60° | 54° | 1% | 3 mph W | 29% | 0 | |
| 11 PM | Smoky haze | 59° | 53° | 1% | 3 mph WNW | 32% | 0 |
Johannesburg hourly weather - Sunday, August 9
In Johannesburg, expect a high near 67°F (19°C) around 3 PM and a low of 53°F (12°C) near 7 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 59° | 53° | 1% | 3 mph WNW | 34% | 0 | |
| 1 AM | Smoky haze | 58° | 52° | 1% | 3 mph W | 35% | 0 | |
| 2 AM | Clear | 57° | 52° | 1% | 3 mph W | 36% | 0 | |
| 3 AM | Clear | 57° | 51° | 1% | 3 mph W | 36% | 0 | |
| 4 AM | Clear | 56° | 51° | 1% | 2 mph WNW | 37% | 0 | |
| 5 AM | Clear | 55° | 51° | 1% | 3 mph NNW | 38% | 0 | |
| 6 AM | Clear | 54° | 50° | 1% | 4 mph NNW | 39% | 0 | |
| 7 AM | Smoky haze | 53° | 50° | 1% | 4 mph NNW | 41% | 0 | |
| 8 AM | Smoky haze | 55° | 50° | 1% | 5 mph NNW | 38% | 1 | |
| 9 AM | Smoky haze | 58° | 50° | 1% | 6 mph NNW | 34% | 2 | |
| 10 AM | Sunny | 61° | 52° | 1% | 8 mph NW | 31% | 4 | |
| 11 AM | Sunny | 63° | 54° | 0% | 9 mph NW | 28% | 5 | |
| 12 PM | Sunny | 65° | 55° | 0% | 10 mph NW | 24% | 6 | |
| 1 PM | Sunny | 66° | 56° | 0% | 10 mph NW | 22% | 6 | |
| 2 PM | Sunny | 67° | 56° | 0% | 11 mph NW | 20% | 4 | |
| 3 PM | Sunny | 67° | 57° | 0% | 10 mph NW | 20% | 2 | |
| 4 PM | Sunny | 67° | 57° | 0% | 10 mph NW | 21% | 1 | |
| 5 PM | Sunny | 66° | 56° | 0% | 10 mph NW | 22% | 0 | |
| 6 PM | Clear | 64° | 55° | 0% | 9 mph NW | 23% | 0 | |
| 7 PM | Clear | 63° | 54° | 1% | 8 mph NNW | 24% | 0 | |
| 8 PM | Clear | 62° | 53° | 0% | 8 mph NNW | 25% | 0 | |
| 9 PM | Clear | 61° | 52° | 0% | 8 mph NNW | 26% | 0 | |
| 10 PM | Clear | 60° | 52° | 1% | 7 mph N | 27% | 0 | |
| 11 PM | Clear | 59° | 50° | 1% | 8 mph N | 27% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Johannesburg today?
Will it rain in Johannesburg tonight?
When is the UV index highest in Johannesburg today?
Johannesburg hour-by-hour: what to expect
Over the next 24 hours in Johannesburg, temperatures range from 52°F (11°C) around 7 AM up to 67°F (19°C) near 3 PM - about 3°F (2°C) below the typical August high of 70°F (21°C).
Precipitation chances stay minimal throughout, so plans can skip the umbrella. UV reaches 6 (12 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the Johannesburg 14-day forecast or the monthly climate averages.