May · Greece
Best time to visit Thessaloniki in May Weather, crowds & prices
Weather in Thessaloniki in May
Average temperature 18°C, 72 mm of rain, about 28 days with 6+ hours of sunshine and 72% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
8.8/10
Ranked #2 of 12 months
- Avg temp
- 18°C
- Rainfall
- 72 mm
- Humidity
- 72%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Thessaloniki scores 8.8/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 18°C, 72 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Thessaloniki layers Roman ruins, Byzantine churches and a seafront promenade on the Thermaic Gulf.
May is one of the strongest months in Thessaloniki (2nd)
May averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 72 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 14.5 hours of daylight.
A 8.8/10 puts this among the year's best months in Thessaloniki (2nd of 12); only October scores higher, at 9.5/10.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Thessaloniki in May?
- In May, Thessaloniki averages 18°C, 72 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.8/10.
- Is May a good time to visit Thessaloniki?
- May earns a 8.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Thessaloniki in May?
- Expect about 72 mm of rain in May. Average humidity is 72% and there are about 28 days with 6+ hours of sunshine.
Curated in Thessaloniki
Tickets & experiences
Things to do in Thessaloniki
Thessaloniki, Greece. Live activities and tours from GetYourGuide, matched to this destination.