La Union weather in December
December in La Union: warm, rainy, with clean air — an excellent time to visit.
#5 of 12 months in La Union · #213 of 897 destinations to visit in December · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on La Union in December
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La Union climate normals — December
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Rainfall | 86 mm / 3.4 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 11.2 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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La Union in December — FAQ
- Is December a good time to visit La Union?
- December in La Union: warm, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for La Union on SeasonMap's comfort score (83/100).
- What is the weather like in La Union in December?
- In December, La Union averages a daily high of 27.8°C and a low of 24.5°C, with about 86 mm of rain over roughly 15.4 rainy days.
- What is the air quality in La Union in December?
- La Union has a mean US Air Quality Index of about 30 in December.