Thessaloniki weather in May
May in Thessaloniki: warm, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Thessaloniki · #46 of 604 destinations to visit in May · comfort 92/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Thessaloniki climate normals — May
| Daytime high | 24°C / 75°F | 🌤 warm |
|---|---|---|
| Nighttime low | 15°C / 59°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 13°C / 56°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 14.5 h | |
| Wind | 12 km/h / 8 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Thessaloniki?
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Thessaloniki in May — FAQ
- Is May a good time to visit Thessaloniki?
- May in Thessaloniki: warm, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Thessaloniki on SeasonMap's comfort score (92/100).
- What is the weather like in Thessaloniki in May?
- In May, Thessaloniki averages a daily high of 24.1°C and a low of 15.2°C, with about 73.5 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Thessaloniki in May?
- Thessaloniki has a mean US Air Quality Index of about 48 in May.