Riga weather in May
May in Riga: cool, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Riga · #297 of 604 destinations to visit in May · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Riga climate normals — May
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 7°C / 44°F | |
| Feels like (high) | 13°C / 55°F | |
| Rainfall | 61 mm / 2.4 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 63% | 💧 humid |
| Dew point | 4°C / 40°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 16.5 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Riga in May — FAQ
- Is May a good time to visit Riga?
- May in Riga: cool, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Riga on SeasonMap's comfort score (82/100).
- What is the weather like in Riga in May?
- In May, Riga averages a daily high of 15.5°C and a low of 6.8°C, with about 61.3 mm of rain over roughly 10.4 rainy days.
- What is the air quality in Riga in May?
- Riga has a mean US Air Quality Index of about 48 in May.