Rosario · WinterMonth summary
Rosario weather in January
✅ Good
🌡️ Temperature min / max
70°F – 88°F
🌧 Rainy days
28% of days
☀️ Sunshine
13.5h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
8.0/10
📅 📅 Best month
November (8.7/10)
Quick decision
Should you visit Rosario in January?
✅ Good
✅ Yes if: you're looking for maximum sunshine — 13.5h per day on average.
❌ No if: you struggle with heat — temperatures regularly exceed 30°F.
Our take: January is a good time to visit Rosario. November remains slightly better (+0.7 pts).
By trip type
Rosario in January by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in January
Even in winter, Rosario enjoys 31°F. A real asset for escaping the European cold. Expect rain on 28% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if November (8.7/10) remains theoretically better.
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All months for Rosario
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 70°F | 88°F | 28% | 0.1in | 13.5h | 8.0/10 |
| 🌤️ February | 68°F | 86°F | 28% | 0.1in | 12.6h | 8.1/10 |
| 🌤️ March | 64°F | 81°F | 31% | 0.2in | 11.7h | 8.2/10 |
| 🌤️ April | 59°F | 73°F | 31% | 0.2in | 10.1h | 7.6/10 |
| 🌤️ May | 52°F | 66°F | 20% | 0.1in | 9.6h | 7.3/10 |
| ⛅ June | 45°F | 61°F | 14% | 0.0in | 9.2h | 7.1/10 |
| ⛅ July | 45°F | 61°F | 18% | 0.0in | 9.5h | 7.1/10 |
| 🌤️ August | 46°F | 64°F | 14% | 0.1in | 10.0h | 7.3/10 |
| 🌤️ September | 50°F | 70°F | 18% | 0.1in | 11.2h | 7.8/10 |
| 🌤️ October | 55°F | 75°F | 26% | 0.1in | 12.0h | 8.1/10 |
| ☀️ November | 61°F | 81°F | 23% | 0.1in | 13.1h | 8.7/10 |
| 🌤️ December | 66°F | 86°F | 27% | 0.1in | 13.9h | 8.4/10 |
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 January, Rosario averages 88°F, 28% rainy days and 13.5h of sunshine per day. Overall weather score: 8.0/10.
See methodology →
Comparison
January vs November (best month)
The best month is November (score 8.7/10). Difference:
- 🌡️ Max temperature : -4°F
- 🌧 Rainy days : -5%
- ☀️ Sunshine : -0.4h/day
FAQ
FAQ — Rosario in January
Is January a good time to visit Rosario?
January is an excellent time to visit Rosario (score 8.0/10). With 88°F, 13.5h of sunshine and 28% rain, conditions are very favourable.
What to do in Rosario in January?
With 88°F and 13.5h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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