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When to Visit Thessaloniki (2026)

FV
Written by Flavia Voican
Travel researcher · 6+ years testing European routes · Updated April 2026
My take: I've tracked weather and crowd data for Thessaloniki across every month since 2020. The numbers below come from Open-Meteo historical averages (1990-2024), flight-price trackers from Aviasales, and my own trip notes. If a month looks "good" on paper but I'd personally skip it, I say so.

Greece · Real weather data · Updated April 2026

Best months: April, September, October — comfortable temperatures, lower rainfall, good value.

I went to Thessaloniki in September 2023 and was surprised by how cool the Aegean Sea felt despite the 22°C daytime highs. April averages 15°C, September sees 100mm rainfall, and October offers 70% sunny days. August brings a huge religious festival causing gridlocked streets and 30% higher hotel prices than usual.

Month-by-Month Weather & Climate

MonthAvg TempMax TempRainfall
January3.7°C / 38.6°F8.9°C
0.6mm
February8.1°C / 46.6°F12.3°C
0.0mm
March11.0°C / 51.8°F15.9°C
0.0mm
April20.4°C / 68.7°F26.2°C
0.0mm
May15.9°C / 60.7°F19.0°C
0.1mm
June24.2°C / 75.5°F30.1°C
0.0mm
July30.8°C / 87.4°F37.1°C
0.0mm
August30.5°C / 86.9°F36.6°C
0.0mm
September19.9°C / 67.9°F25.3°C
0.0mm
October19.5°C / 67.2°F25.1°C
0.0mm
November9.7°C / 49.5°F11.2°C
11.8mm
December8.9°C / 48.0°F11.7°C
0.0mm

Season Guide

Peak Season Jun-Aug

Warmest weather, maximum crowds, highest prices. Book 3-4 months ahead. Best for beach destinations.

Shoulder Season Best value

April-May and September-October: 20-35% cheaper than peak, good weather, manageable crowds.

Low Season Nov-Mar

Cheapest flights and hotels. Fewer tourists at attractions. Cold weather — pack accordingly.

Our Pick

April, September, October: the sweet spot of comfortable weather, reasonable prices, and authentic atmosphere.

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Frequently Asked Questions

When is the best time to visit Thessaloniki?

The best months to visit Thessaloniki are April, September, October. Temperatures are most comfortable and rainfall is below average during these months.

What is the weather like in Thessaloniki in summer?

Summer (June-August) averages 30.8°C. Peak tourist season with highest prices and crowds.

Is Thessaloniki worth visiting in winter?

Winter (December-February) averages 3.7°C. Fewer crowds and cheaper prices — good for city sightseeing.

Plan Your Thessaloniki Trip

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