Asunción · AutumnMonth summary
Asunción weather in September
✅ Good
🌡️ Temperature min / max
17°C – 28°C
🌧 Rainy days
25% of days
☀️ Sunshine
10.9h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
8.5/10
📅 📅 Best month
September (8.5/10)
Quick decision
Should you visit Asunción in September?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Favourable conditions in September (8.5/10). September scores higher but the gap is small.
By trip type
Asunción in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn in Asunción is often underrated: 28°C, golden light and declining crowds. An interesting window. Rain risk remains low (25% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if September (8.5/10) remains theoretically better.
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All months for Asunción
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 24°C | 33°C | 40% | 4.5 | 12.9h | 7.3/10 |
| 🌤️ February | 24°C | 32°C | 36% | 3.5 | 12.0h | 7.6/10 |
| 🌤️ March | 22°C | 31°C | 37% | 4.3 | 11.8h | 7.6/10 |
| 🌤️ April | 20°C | 28°C | 32% | 5.1 | 10.8h | 8.2/10 |
| 🌤️ May | 17°C | 24°C | 34% | 4.2 | 9.7h | 7.6/10 |
| 🌤️ June | 14°C | 22°C | 24% | 2.8 | 9.4h | 7.7/10 |
| 🌤️ July | 15°C | 24°C | 18% | 1.8 | 10.0h | 8.1/10 |
| ☀️ August | 15°C | 25°C | 19% | 2.2 | 10.1h | 8.2/10 |
| 🌤️ September | 17°C | 28°C | 25% | 2.5 | 10.9h | 8.5/10 |
| 🌤️ October | 20°C | 29°C | 38% | 6.7 | 11.4h | 7.9/10 |
| 🌤️ November | 21°C | 31°C | 36% | 6.2 | 12.9h | 7.8/10 |
| 🌤️ December | 23°C | 32°C | 36% | 5.2 | 13.0h | 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 September, Asunción averages 28°C, 25% rainy days and 10.9h of sunshine per day. Overall weather score: 8.5/10.
See methodology →
Comparison
September vs September (best month)
The best month is September (score 8.5/10). Difference:
- 🌡️ Max temperature : +0°C
- 🌧 Rainy days : +0%
- ☀️ Sunshine : +0.0h/day
FAQ
FAQ — Asunción in September
Is September a good time to visit Asunción?
September is an excellent time to visit Asunción (score 8.5/10). With 28°C, 10.9h of sunshine and 25% rain, conditions are very favourable.
What to do in Asunción in September?
With 28°C and 10.9h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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