Johannesburg, South Africa 14-Day Forecast
South Africa 🇿🇦
64°
Smoky haze right now
Today: high 68°, low 53°
Updated 14 min ago
Johannesburg weather for the next 14 days
Saturday, July 18
Smoky haze High 70° Low 54°Precipitation
1%
· 0.0 in
Max wind
8 mph
Humidity
15%
UV index
6 - High
Sunrise / sunset
06:53 AM / 05:34 PM
Sunday, July 19
Sunny High 69° Low 54°Precipitation
1%
· 0.0 in
Max wind
10 mph
Humidity
18%
UV index
6 - High
Sunrise / sunset
06:53 AM / 05:35 PM
Monday, July 20
Smoky haze High 66° Low 52°Precipitation
0%
· 0.0 in
Max wind
6 mph
Humidity
19%
UV index
6 - High
Sunrise / sunset
06:52 AM / 05:35 PM
Tuesday, July 21
Sunny High 68° Low 52°Precipitation
0%
· 0.0 in
Max wind
10 mph
Humidity
26%
UV index
6 - High
Sunrise / sunset
06:52 AM / 05:36 PM
Wednesday, July 22
Sunny High 69° Low 54°Precipitation
1%
· 0.0 in
Max wind
14 mph
Humidity
35%
UV index
7 - High
Sunrise / sunset
06:51 AM / 05:36 PM
Thursday, July 23
Sunny High 65° Low 50°Precipitation
0%
· 0.0 in
Max wind
6 mph
Humidity
20%
UV index
6 - High
Sunrise / sunset
06:51 AM / 05:37 PM
Friday, July 24
Sunny High 67° Low 52°Precipitation
1%
· 0.0 in
Max wind
5 mph
Humidity
33%
UV index
6 - High
Sunrise / sunset
06:51 AM / 05:37 PM
Saturday, July 25
Sunny High 68° Low 54°Precipitation
1%
· 0.0 in
Max wind
3 mph
Humidity
35%
UV index
7 - High
Sunrise / sunset
06:50 AM / 05:38 PM
Sunday, July 26
Sunny High 69° Low 55°Precipitation
1%
· 0.0 in
Max wind
9 mph
Humidity
34%
UV index
7 - High
Sunrise / sunset
06:50 AM / 05:38 PM
Monday, July 27
Sunny High 58° Low 45°Precipitation
1%
· 0.0 in
Max wind
15 mph
Humidity
43%
UV index
5 - Moderate
Sunrise / sunset
06:49 AM / 05:39 PM
Tuesday, July 28
Sunny High 57° Low 40°Precipitation
1%
· 0.0 in
Max wind
10 mph
Humidity
37%
UV index
5 - Moderate
Sunrise / sunset
06:49 AM / 05:39 PM
Wednesday, July 29
Sunny High 63° Low 47°Precipitation
0%
· 0.0 in
Max wind
6 mph
Humidity
25%
UV index
6 - High
Sunrise / sunset
06:48 AM / 05:40 PM
Thursday, July 30
Sunny High 63° Low 50°Precipitation
0%
· 0.0 in
Max wind
5 mph
Humidity
26%
UV index
6 - High
Sunrise / sunset
06:48 AM / 05:40 PM
Johannesburg 14-day outlook: the story
The warmest day of Johannesburg's 14-day outlook is Saturday, July 18 with a high near 70°F (21°C); the coolest night comes Tuesday, July 28, dipping to 40°F (4°C). The trend points cooler: week two runs about 4°F below week one. Highs over the next two weeks average 68°F (20°C), about 5°F (3°C) above the typical July high of 63°F (17°C).
No day in the outlook currently carries a strong precipitation signal. For the weekend, expect Saturday 70°F (21°C) and smoky haze / Sunday 69°F (20°C) and sunny.
For typical conditions month by month, see the Johannesburg climate & average temperatures guide.
Johannesburg forecast questions
Will it rain in Johannesburg this week?
No day in the current 14-day outlook shows a strong rain signal for Johannesburg.
What will be the warmest day in Johannesburg over the next 14 days?
Saturday, July 18, with a forecast high near 70°F (21°C).
How accurate is a 14-day forecast for Johannesburg?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Johannesburg by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 78° | 58° | 14 | 4.6 in | 11.6 h/day | 66% |
| February | 77° | 58° | 13 | 4.1 in | 11.0 h/day | 68% |
| March | 76° | 56° | 9 | 2.4 in | 10.7 h/day | 65% |
| April | 71° | 51° | 8 | 2.2 in | 10.1 h/day | 65% |
| May | 68° | 45° | 2 | 0.6 in | 9.8 h/day | 54% |
| June | 63° | 40° | 1 | 0.3 in | 9.8 h/day | 51% |
| July | 63° | 39° | 0 | 0.1 in | 10.2 h/day | 46% |
| August | 70° | 44° | 1 | 0.1 in | 10.6 h/day | 40% |
| September | 76° | 50° | 3 | 0.5 in | 11.2 h/day | 39% |
| October | 79° | 53° | 7 | 1.5 in | 11.1 h/day | 46% |
| November | 79° | 56° | 11 | 3.0 in | 11.5 h/day | 56% |
| December | 79° | 59° | 16 | 4.3 in | 11.3 h/day | 64% |
14-day forecasts nearby