Johannesburg · SummerMonth summary
Johannesburg weather in August
✅ Good
🌡️ Temperature min / max
7°C – 21°C
🌧 Rainy days
3% of days
☀️ Sunshine
10.7h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
8.2/10
📅 📅 Best month
September (8.8/10)
Quick decision
Should you visit Johannesburg in August?
✅ Good
✅ Yes if: you want long sunny days and outdoor activities.
❌ No if: you want to avoid summer crowds — this is peak tourist season.
Our take: August is a good time to visit Johannesburg. September remains slightly better (+0.6 pts).
By trip type
Johannesburg in August by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in August
🎯 Peak season — book ahead for best rates. Accommodation prices at their highest In August, Johannesburg sees 21°C during the day with 10.7h of sunshine per day. Rain is virtually absent (3% of days) — ideal for planning without a backup. A good balance between weather and crowds, even if September (8.8/10) remains theoretically better.
Browse by month
All months for Johannesburg
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 15°C | 25°C | 45% | 3.9 | 12.9h | 7.8/10 |
| 🌤️ February | 15°C | 25°C | 50% | 4.2 | 12.2h | 7.6/10 |
| 🌤️ March | 13°C | 24°C | 32% | 2.0 | 11.7h | 8.0/10 |
| 🌤️ April | 11°C | 21°C | 27% | 2.1 | 10.9h | 7.6/10 |
| 🌤️ May | 7°C | 20°C | 7% | 0.5 | 10.1h | 7.8/10 |
| 🌤️ June | 5°C | 18°C | 5% | 0.3 | 10.1h | 7.5/10 |
| ⛅ July | 4°C | 17°C | 2% | 0.1 | 10.4h | 7.4/10 |
| 🌤️ August | 7°C | 21°C | 3% | 0.2 | 10.7h | 8.2/10 |
| ☀️ September | 10°C | 25°C | 10% | 0.4 | 11.7h | 8.8/10 |
| ☀️ October | 12°C | 26°C | 24% | 1.4 | 12.0h | 8.6/10 |
| 🌤️ November | 13°C | 26°C | 43% | 2.8 | 12.6h | 8.0/10 |
| 🌤️ December | 15°C | 25°C | 55% | 3.8 | 12.7h | 7.6/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Johannesburg averages 21°C, 3% rainy days and 10.7h of sunshine per day. Overall weather score: 8.2/10.
See methodology →
Comparison
August vs September (best month)
The best month is September (score 8.8/10). Difference:
- 🌡️ Max temperature : +4°C
- 🌧 Rainy days : +7%
- ☀️ Sunshine : +1.0h/day
FAQ
FAQ — Johannesburg in August
Is August a good time to visit Johannesburg?
August is an excellent time to visit Johannesburg (score 8.2/10). With 21°C, 10.7h of sunshine and 3% rain, conditions are very favourable.
What to do in Johannesburg in August?
With 21°C and 10.7h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
Find a place to stay in Johannesburg
Find places to stay in Johannesburg in August
Search on Hotels.com
Activities & tours
Activities and tours in Johannesburg
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Johannesburg
Compare flights from all airlines.
Search flights
←
Explore also
Similar destinations in August
Maputo
Harare
Darwin🌍 Top destinations
Other top destinations in August
Larnaca
Saint Thomas
Cape Verde
Djerba
Turks and CaicosWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons