Johannesburg, South Africa 14-Day Forecast
South Africa 🇿🇦
63°
Clear right now
Today: high 70°, low 55°
Updated 22 min ago
Johannesburg weather for the next 14 days
Friday, August 7
Sunny High 69° Low 55°Precipitation
0%
· 0.0 in
Max wind
10 mph
Humidity
20%
UV index
6 - High
Sunrise / sunset
06:42 AM / 05:44 PM
Saturday, August 8
Sunny High 67° Low 51°Precipitation
1%
· 0.0 in
Max wind
10 mph
Humidity
41%
UV index
6 - Moderate
Sunrise / sunset
06:42 AM / 05:44 PM
Sunday, August 9
Sunny High 69° Low 54°Precipitation
1%
· 0.0 in
Max wind
10 mph
Humidity
28%
UV index
6 - Moderate
Sunrise / sunset
06:41 AM / 05:45 PM
Monday, August 10
Sunny High 59° Low 41°Precipitation
64%
· 0.37 in
Max wind
25 mph
Humidity
54%
UV index
4 - Moderate
Sunrise / sunset
06:40 AM / 05:45 PM
Tuesday, August 11
Heavy snow High 42° Low 37°Precipitation
91%
· 1.1 in
Snow
7.27 cm
Max wind
21 mph
Humidity
88%
UV index
2 - Low
Sunrise / sunset
06:39 AM / 05:46 PM
Wednesday, August 12
Partly Cloudy High 48° Low 38°Precipitation
59%
· 0.08 in
Snow
1.22 cm
Max wind
14 mph
Humidity
71%
UV index
4 - Moderate
Sunrise / sunset
06:39 AM / 05:46 PM
Thursday, August 13
Sunny High 54° Low 39°Precipitation
3%
· 0.0 in
Max wind
10 mph
Humidity
55%
UV index
5 - Moderate
Sunrise / sunset
06:38 AM / 05:47 PM
Friday, August 14
Sunny High 58° Low 42°Precipitation
1%
· 0.0 in
Max wind
6 mph
Humidity
42%
UV index
5 - Moderate
Sunrise / sunset
06:37 AM / 05:47 PM
Saturday, August 15
Sunny High 62° Low 47°Precipitation
1%
· 0.0 in
Max wind
8 mph
Humidity
32%
UV index
6 - High
Sunrise / sunset
06:36 AM / 05:48 PM
Sunday, August 16
Sunny High 66° Low 50°Precipitation
0%
· 0.0 in
Max wind
8 mph
Humidity
25%
UV index
6 - High
Sunrise / sunset
06:35 AM / 05:48 PM
Monday, August 17
Sunny High 69° Low 52°Precipitation
0%
· 0.0 in
Max wind
8 mph
Humidity
20%
UV index
7 - High
Sunrise / sunset
06:34 AM / 05:48 PM
Tuesday, August 18
Sunny High 71° Low 55°Precipitation
0%
· 0.0 in
Max wind
6 mph
Humidity
20%
UV index
7 - High
Sunrise / sunset
06:33 AM / 05:49 PM
Wednesday, August 19
Sunny High 64° Low 51°Precipitation
2%
· 0.0 in
Max wind
10 mph
Humidity
48%
UV index
6 - High
Sunrise / sunset
06:32 AM / 05:49 PM
Johannesburg 14-day outlook: the story
The warmest day of Johannesburg's 14-day outlook is Tuesday, August 18 with a high near 71°F (22°C); the coolest night comes Tuesday, August 11, dipping to 37°F (3°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 61°F (16°C), about 9°F (5°C) below the typical August high of 70°F (21°C).
Precipitation is most likely on Monday 10, Tuesday 11, Wednesday 12; the wettest day looks like Tuesday, August 11 with about 1.1 in (28.0 mm) expected. For the weekend, expect Saturday 67°F (20°C) and sunny / Sunday 69°F (21°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?
The forecast currently shows meaningful precipitation chances on 3 of the next 14 days, peaking around Tuesday, August 11.
What will be the warmest day in Johannesburg over the next 14 days?
Tuesday, August 18, with a forecast high near 71°F (22°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