La Union weather in May
May in La Union: hot, soaked, with clean air — fine if you can take 20 rainy days.
#7 of 12 months in La Union · #595 of 897 destinations to visit in May · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on La Union in May
No notes yet. Open La Union on the map to add the first one.
La Union climate normals — May
| Daytime high | 31°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 80°F | |
| Rainfall | 202 mm / 7.9 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 10.9 h/day | |
| Daylight | 12.9 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is La Union?
Loading map…
La Union in May — FAQ
- Is May a good time to visit La Union?
- May in La Union: hot, soaked, with clean air — fine if you can take 20 rainy days. It ranks #7 of 12 months for La Union on SeasonMap's comfort score (78/100).
- What is the weather like in La Union in May?
- In May, La Union averages a daily high of 30.6°C and a low of 26.4°C, with about 201.7 mm of rain over roughly 20.2 rainy days.
- What is the air quality in La Union in May?
- La Union has a mean US Air Quality Index of about 45 in May.