When to go · Rosario
Rosario in December
Good month. Outside the best window (Mar–May, Sep–Nov). Across Argentina: Patagonia summer starts; book flights early; Christmas and New Year fill everything.
Key facts
- Verdict
- Good
- Temperature
- 30°C (86°F)86°F (30°C) / 17°C (63°F)63°F (17°C)
- average high / low
- Rain days
- 8
- Crowds
- High
- Argentina overall
- Prices
- High
- Argentina overall
Verdict
Outside the best window (Mar–May, Sep–Nov). Across Argentina: Patagonia summer starts; book flights early; Christmas and New Year fill everything.
Is another month better than December?
December is rated good. These months rate higher:
Weather in December
- RosarioHighs around 30 °C (86 °F), lows around 17 °C (63 °F), rain on about 8 daysHighs around 86 °F (30 °C), lows around 63 °F (17 °C), rain on about 8 days
Crowds and prices
- Crowds · Argentina overall
- High
- Prices · Argentina overall
- High
Argentina overall: Patagonia summer starts; book flights early; Christmas and New Year fill everything.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Rosario, side by side.
Verdict
Dec: Good
Mar: Great (better)
Daytime high
Dec: 30 °C (86 °F)86 °F (30 °C)
Mar: 28 °C (82 °F)82 °F (28 °C)
Night low
Dec: 17 °C (63 °F)63 °F (17 °C)
Mar: 16 °C (61 °F)61 °F (16 °C)
Rain days
Dec: 8
Mar: 8
Crowds
Dec: High
Mar: Medium
Prices
Dec: High
Mar: Medium
Festivals listed
Dec: 0
Mar: 1
December: Outside the best window (Mar–May, Sep–Nov). Across Argentina: Patagonia summer starts; book flights early; Christmas and New Year fill everything.
March: Inside Rosario's best window: Mar–May, Sep–Nov.
Rosario: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen