Best months
March, May, and October
Warmest month
July, 33°C
Wettest month
December, 49 mm
Thessaloniki weather by month
Average daily high and low, total rainfall and days with at least 2.5 mm of rain.
| Month | High / low | Rain | Verdict |
|---|---|---|---|
| January | 10°C / 2°C | 35 mm · 4 days | Cold |
| February | 12°C / 4°C | 27 mm · 3 days | Cold |
| March | 15°C / 5°C | 46 mm · 5 days | Good |
| April | 20°C / 9°C | 36 mm · 3 days | Good |
| May | 25°C / 13°C | 36 mm · 3 days | Great |
| June | 31°C / 19°C | 40 mm · 3 days | Good |
| July | 33°C / 21°C | 22 mm · 2 days | Hot |
| August | 33°C / 21°C | 28 mm · 2 days | Hot |
| September | 28°C / 17°C | 40 mm · 4 days | Good |
| October | 21°C / 12°C | 43 mm · 3 days | Great |
| November | 16°C / 8°C | 31 mm · 4 days | Good |
| December | 12°C / 4°C | 49 mm · 4 days | Cold |
Thessaloniki by season
Spring
Spring is glorious, with mild temperatures, blooming flowers in the parks, and vibrant outdoor cafe life. The city awakens from winter, and cultural events begin.
- + Pleasant weather perfect for walking
- + Fewer crowds than summer
- + Ideal for day trips to the countryside
- − Occasional rain showers
- − Sea is still too cold for swimming
Summer
Hot, dry, and bustling. The waterfront is alive day and night, and the city's energy is infectious. This is festival and open-air cinema season.
- + Lively atmosphere and long days
- + Perfect for beach trips to nearby Halkidiki
- + Full schedule of cultural festivals and events
- − Can be very hot (often over 30°C/86°F)
- − Peak tourist crowds, especially in August
Autumn
Often considered the best time to visit. The summer heat subsides, the light is golden, and the sea remains warm enough for swimming into October. The cultural calendar is full.
- + Excellent weather for sightseeing
- + Warm sea temperatures
- + Harvest season means fantastic local produce
- − Increased chance of rain in November
- − Days gradually get shorter
Winter
Cool and damp, with a more local feel. While not bitterly cold, it's the quietest season. The magic is in cozy tavernas, Christmas decorations, and clear views from Ano Poli.
- + No crowds at major attractions
- + Lower prices for accommodation
- + Authentic local atmosphere in cafes and markets
- − Some archaeological sites have reduced hours
- − Weather can be grey and rainy
Thessaloniki month by month
Thessaloniki in January
ColdIn January, Thessaloniki averages highs of 10°C and lows of 2°C, with about 4 rainy days and 35 mm of rain. It is cold, so pack warm layers.
Thessaloniki in February
ColdIn February, Thessaloniki averages highs of 12°C and lows of 4°C, with about 3 rainy days and 27 mm of rain. It is cold, so pack warm layers.
Thessaloniki in March
GoodIn March, Thessaloniki averages highs of 15°C and lows of 5°C, with about 5 rainy days and 46 mm of rain. It is a good month to visit.
Thessaloniki in April
GoodIn April, Thessaloniki averages highs of 20°C and lows of 9°C, with about 3 rainy days and 36 mm of rain. It is a good month to visit.
Thessaloniki in May
GreatIn May, Thessaloniki averages highs of 25°C and lows of 13°C, with about 3 rainy days and 36 mm of rain. It is one of the most comfortable months for sightseeing.
Thessaloniki in June
GoodIn June, Thessaloniki averages highs of 31°C and lows of 19°C, with about 3 rainy days and 40 mm of rain. It is a good month to visit.
Thessaloniki in July
HotIn July, Thessaloniki averages highs of 33°C and lows of 21°C, with about 2 rainy days and 22 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
Thessaloniki in August
HotIn August, Thessaloniki averages highs of 33°C and lows of 21°C, with about 2 rainy days and 28 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
Thessaloniki in September
GoodIn September, Thessaloniki averages highs of 28°C and lows of 17°C, with about 4 rainy days and 40 mm of rain. It is a good month to visit.
Thessaloniki in October
GreatIn October, Thessaloniki averages highs of 21°C and lows of 12°C, with about 3 rainy days and 43 mm of rain. It is one of the most comfortable months for sightseeing.
Thessaloniki in November
GoodIn November, Thessaloniki averages highs of 16°C and lows of 8°C, with about 4 rainy days and 31 mm of rain. It is a good month to visit.
Thessaloniki in December
ColdIn December, Thessaloniki averages highs of 12°C and lows of 4°C, with about 4 rainy days and 49 mm of rain. It is cold, so pack warm layers.
Top tours and experiences in Thessaloniki
The tours and tickets travellers book most, with ratings and reviews from Viator.
Thessaloniki: Bus Trip to Dion & Mt Olympus National Park
4.6301 reviews10h
from €49
Check availability
Pozar Thermal Baths and Edessa Day Trip from Thessaloniki
4.6239 reviews10h
from €49
Check availability
Discover Vergina and Pella: Day Trip to Macedonian Kingdom
4.7212 reviews8h 30m
from €49
Check availabilityAll things to do in Thessaloniki →
Tours and prices from Viator, a Tripadvisor company. Prices change with your dates. We may earn a commission if you book, at no extra cost to you.
Plan your Thessaloniki trip
Best time to visit Thessaloniki: FAQ
What is the best month to visit Thessaloniki?+
May is the most comfortable month on average, with highs of 25°C. October and March are close behind.
What is the rainiest month in Thessaloniki?+
December is the wettest month, with about 49 mm of rain.
How hot does Thessaloniki get?+
July is the warmest month, with average highs of 33°C and lows of 21°C. The coldest nights come in January, averaging 2°C.
Averages for 2006–2025 from the MAKEDONIA weather station (14 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.