Johannesburg Climate and Average Weather
Climate of Johannesburg: average temperatures, rainfall and seasons month by month.
Climate in Johannesburg month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 79° | 59° | 3,0 in | ★★★★☆ |
| February | 79° | 60° | 3,6 in | ★★★★☆ |
| March | 75° | 58° | 3,7 in | ★★★★☆ |
| April | 69° | 52° | 3,2 in | ★★★★☆ |
| May | 67° | 47° | 0,6 in | ★★★★☆ |
| June | 62° | 42° | 0,4 in | ★★★★☆ |
| July | 64° | 41° | 0,1 in | ★★★★☆ |
| August | 70° | 45° | 0,3 in | ★★★★☆ |
| September | 77° | 51° | 0,8 in | ★★★★★ |
| October | 78° | 53° | 1,7 in | ★★★★☆ |
| November | 77° | 56° | 3,1 in | ★★★★☆ |
| December | 78° | 59° | 4,4 in | ★★★★☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Recent extremes in Johannesburg
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Johannesburg compares with nearby places
Annual averages, and the difference against Johannesburg.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Botswana | 172 mi | 70°F | +40°F warmer | 18 in |
| Kruger National Park | 268 mi | 75°F | +45°F warmer | 30 in |
| Mozambique | 281 mi | 74°F | +44°F warmer | 38 in |
Climate by airport in Johannesburg
1 airports mapped in this atlas
Best time to visit Johannesburg
Go in January, May, August, September, October and November. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: March, June and December - expect the least comfortable mix of heat, cold or rain.
What this means for Johannesburg
Today is slightly warmer than average for August. The forecast high of 74°F is 4.1°F above the 70°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Southern Hemisphere, so peak summer falls in December to February.
The gap between the warmest and coldest month averages 50°F.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 60°F, so mornings feel nothing like afternoons
- If your dates are flexible, avoid March, June and December - historically the least comfortable months here.
Summary
Johannesburg is a city in South Africa. Johannesburg is known for Apartheid Museum and safari gateway. It has a population of about 5.8 million.
Right now it is 49°F (9°C) in Johannesburg with clear. It feels like 44°F. Today runs from 48°F to 74°F. Chance of precipitation is 0%. Sightseeing conditions score 8.6/10 - excellent - go now.
The best time to visit Johannesburg is January, May, August, September, October and November. The climate is Mediterranean. March, June and December tend to be the least comfortable months. February is the warmest month with average highs near 79°F, while July is the coldest with lows near 41°F.
The closest major airport is O. R. Tambo International Airport (JNB), about 13 mi away.
In plain terms. Today is slightly warmer than average for August. The forecast high of 74°F is 4.1°F above the 70°F typical for this month. The best window to be outside is roughly 12 PM to 3 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Johannesburg today at 10/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Johannesburg
| Type | City |
|---|---|
| Country | South Africa |
| Continent | Africa |
| Coordinates | 26°12′14.8″S 28°2′50.3″E (-26.2041, 28.0473) |
| Population | 5.800.000 |
| Known for | Apartheid Museum and safari gateway |
| Local time | 10:38 PM (UTC+02:00) |
| Best months | January, May, August, September, October and November |
| Climate | Mediterranean |
Weather map for Johannesburg
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Johannesburg
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Johannesburg?
Johannesburg is a city in South Africa. Its coordinates are -26.2041, 28.0473. It lies in Africa.
What is the weather like in Johannesburg right now?
It is currently 49°F (9°C) with clear. Humidity is 73% and wind is 8 mph.
When is the best time to visit Johannesburg?
January, May, August, September, October and November offer the most comfortable conditions in Johannesburg, which has a Mediterranean climate. March, June and December are usually the hardest months for outdoor plans.
What time zone is Johannesburg in?
Johannesburg observes Africa/Johannesburg (UTC+02:00). The local time is 10:38 PM.
How many people live in Johannesburg?
Johannesburg has a population of approximately 5.8 million.
What is the nearest airport to Johannesburg?
The closest airports are O. R. Tambo International Airport (JNB), 13 mi away.
What places are in Johannesburg?
Johannesburg covers 1 places in this atlas, including O. R. Tambo International Airport.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 10:38 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
