Warsaw weather in May
May in Warsaw: cool, a little rain, with clean air — an excellent time to visit.
#5 of 12 months in Warsaw · #305 of 604 destinations to visit in May · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Warsaw climate normals — May
| Daytime high | 17°C / 63°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 75 mm / 3 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 61% | 💧 humid |
| Dew point | 6°C / 42°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 15.7 h | |
| Wind | 18 km/h / 11 mph | |
| Snowfall | 0.3 cm / 0.1 in | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Warsaw in May — FAQ
- Is May a good time to visit Warsaw?
- May in Warsaw: cool, a little rain, with clean air — an excellent time to visit. It ranks #5 of 12 months for Warsaw on SeasonMap's comfort score (82/100).
- What is the weather like in Warsaw in May?
- In May, Warsaw averages a daily high of 17.4°C and a low of 8°C, with about 75.3 mm of rain over roughly 11 rainy days.
- What is the air quality in Warsaw in May?
- Warsaw has a mean US Air Quality Index of about 47 in May.