Climate almanac
La Unión
Nariño, Colombia · 1.60°, -77.13°
What is the climate like in La Unión?
The best time to visit La Unión is typically July, the year's most comfortable month (6.0/10). La Unión is warmest in August, when daily highs average 77°F (25°C), and coolest in September, when lows fall to about 59°F (15°C). The wettest month is typically March and the driest is August; the year sees roughly 171 in (4349 mm) of precipitation.
- Best time to visitJuly — the year's comfort peak (6.0/10)
- Warmest monthAugust — average high 77°F (25°C)
- Coolest monthSeptember — average low 59°F (15°C)
- Wettest monthMarch (18 in (469 mm))
- Driest monthAugust (7.3 in (186 mm))
- Annual precipitation171 in (4349 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromPasto/antonio Narin, 26 km away (1961-2025)