La Unión in December
7.7out of 10
Yes, a good time to go
Mild: highs around 20°C. Some rain: about 8 rainy days.
20°CAvg high
9°CAvg low
8Rainy days (65 mm)
14:52 hDaylight
06:23Sunrise · 21:14 Sunset
Why this score
- Mild: highs around 20°C
- Some rain: about 8 rainy days
- Rain varies a lot between years (±4.2 days)
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in December varies a lot between years (±4.2 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 | 22°C | 10°C | 36 mm | 6 | – | – | 8.3 |
| February | 22°C | 10°C | 42 mm | 5 | – | – | 8.4 |
| March | 20°C | 9°C | 63 mm | 8 | – | – | 7.7 |
| April | 16°C | 7°C | 108 mm | 11 | – | – | 6.6 |
| May | 13°C | 6°C | 189 mm | 15 | – | – | 5.1 |
| June | 11°C | 5°C | 253 mm | 18 | – | – | 4.3 |
| July | 10°C | 4°C | 229 mm | 18 | – | – | 4.2 |
| August | 11°C | 4°C | 210 mm | 18 | – | – | 4.4 |
| September | 13°C | 4°C | 125 mm | 14 | – | – | 5.7 |
| October | 15°C | 6°C | 110 mm | 13 | – | – | 6.1 |
| November | 17°C | 8°C | 73 mm | 9 | – | – | 7.1 |
| December | 20°C | 9°C | 65 mm | 8 | – | – | 7.7 |
Frequently asked questions
How hot is La Unión in December?
Daytime highs average 20°C and nights about 9°C.
When is the best time to visit La Unión?
The best months are February, January.