Thessaloniki · Month comparison

September vs May

May ranks #1 overall vs September at #4. Peak Thessaloniki — 24°C, every cafe terrace open, no summer mass-tourism.

September evening on Aristotelous Square during Trade Fair

September

#4 of 12 months

Best match

Thessaloniki International Trade Fair brings the city alive — book early or pay double.

  • ↑28°C and dry — the single best weather window for city-walking all year
  • ↑Trade Fair (TIF) mid-September — concerts, exhibitions, political speeches, restaurants packed
Aristotelous Square cafe terraces in May with locals lingering

May

#1 of 12 months

Best match

Peak Thessaloniki — 24°C, every cafe terrace open, no summer mass-tourism.

  • ↑24°C with low humidity — best waterfront-walking and Ano Poli-hike weather of the year
  • ↑Aristotelous Square cafes spilling onto the pavement until 02:00, mostly locals
FactorSeptemberMay
Weather score
10
10
Value score
5
8
Crowd score
4
8
Events score
10
7
Atmosphere
10
10
Avg high temp28°C24°C
Monthly rain35mm45mm
Daily sunshine9hrs9hrs

September trade-offs

  • ↓TIF week (usually 7-15 Sep) hotels triple in price and book out 3 months ahead
  • ↓Restaurants in Ladadika need reservations 2-3 days ahead during the Fair

May trade-offs

  • ↓Sea at 19°C — Perea and Halkidiki beach day trips work, but cool
  • ↓Occasional spring thunderstorms — 2-3 wet afternoons across the month
See all 12 months for Thessaloniki →September in detail →May in detail →
Scores compare months within Thessaloniki. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →