Cape Town · AutumnMonth summary
Cape Town weather in September
✅ Good
🌡️ Temperature min / max
11°C – 17°C
🌧 Rainy days
25% of days
☀️ Sunshine
10.7h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.2/10
📅 📅 Best month
January (9.1/10)
Quick decision
Should you visit Cape Town in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: September is a good time to visit Cape Town. January remains slightly better (+1.9 pts).
By trip type
Cape Town in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Ideal beach temperature (24°C) — crowds still moderate Autumn in Cape Town is often underrated: 17°C, golden light and declining crowds. An interesting window. Rain risk remains low (25% of days), leaving good room for outdoor activities. Not the best window, but acceptable if dates are constrained. January (9.1/10) is significantly better if possible.
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All months for Cape Town
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 17°C | 25°C | 10% | 0.5 | 13.1h | 9.1/10 |
| ☀️ February | 18°C | 25°C | 8% | 0.3 | 12.0h | 8.9/10 |
| 🌤️ March | 16°C | 23°C | 15% | 1.0 | 11.1h | 8.3/10 |
| 🌤️ April | 14°C | 22°C | 17% | 1.3 | 10.0h | 8.0/10 |
| 🌤️ May | 12°C | 19°C | 23% | 2.0 | 9.1h | 7.3/10 |
| 🌦️ June | 11°C | 17°C | 40% | 4.4 | 8.7h | 7.0/10 |
| ⛅ July | 10°C | 16°C | 34% | 3.8 | 9.0h | 7.0/10 |
| ⛅ August | 10°C | 16°C | 36% | 2.8 | 9.7h | 7.0/10 |
| ⛅ September | 11°C | 17°C | 25% | 1.6 | 10.7h | 7.2/10 |
| 🌤️ October | 13°C | 20°C | 21% | 1.2 | 11.7h | 7.7/10 |
| 🌤️ November | 15°C | 22°C | 17% | 0.7 | 12.9h | 8.4/10 |
| 🌤️ December | 16°C | 24°C | 17% | 0.9 | 13.3h | 8.8/10 |
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 September, Cape Town averages 17°C, 25% rainy days and 10.7h of sunshine per day. Overall weather score: 7.2/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 9.1/10). Difference:
- 🌡️ Max temperature : +8°C
- 🌧 Rainy days : -15%
- ☀️ Sunshine : +2.4h/day
FAQ
FAQ — Cape Town in September
Is September a good time to visit Cape Town?
September is an acceptable time for Cape Town (score 7.2/10). Conditions are decent but not optimal — consider January (9.1/10) if possible.
What to do in Cape Town in September?
With 17°C max and 10.7h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Cape Town
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