Juan José Castelli in December
6.3out of 10
Possible, with caveats
Hot: daytime highs around 33°C. Frequent rain: about 11 rainy days.
33°CAvg high
21°CAvg low
11Rainy days (135 mm)
13:37 hDaylight
06:10Sunrise · 19:47 Sunset
Why this score
- Hot: daytime highs around 33°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Light, breathable clothing
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in December varies a lot between years (±3.7 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 34°C | 22°C | 123 mm | 11 | – | – | 6.1 |
| February | 32°C | 22°C | 138 mm | 11 | – | – | 6.5 |
| March | 31°C | 20°C | 137 mm | 11 | – | – | 6.9 |
| April | 27°C | 18°C | 117 mm | 9 | – | – | 7.7 |
| May | 24°C | 14°C | 62 mm | 8 | – | – | 8.0 |
| June | 22°C | 13°C | 43 mm | 7 | – | – | 8.2 |
| July | 22°C | 11°C | 31 mm | 6 | – | – | 8.3 |
| August | 26°C | 13°C | 40 mm | 5 | – | – | 8.5 |
| September | 28°C | 15°C | 58 mm | 6 | – | – | 8.2 |
| October | 30°C | 18°C | 120 mm | 10 | – | – | 7.3 |
| November | 31°C | 19°C | 140 mm | 10 | – | – | 6.9 |
| December | 33°C | 21°C | 135 mm | 11 | – | – | 6.3 |
Frequently asked questions
How hot is Juan José Castelli in December?
Daytime highs average 33°C and nights about 21°C.
When is the best time to visit Juan José Castelli?
The best months are August, July, June, September.