Greece · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Thessaloniki are May, September and October, when daytime temperatures are agreeable and rainfall is relatively low.
Thessaloniki sees its warmest weather in July, when daytime highs average around 31°C, and its coolest in January (around 9°C).
Annual precipitation totals roughly 512mm — December is typically the wettest month (~64mm) and August the driest (~25mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 9° / 2°C | 41mm | 🤔 Fair |
| February | 10° / 3°C | 40mm | 🤔 Fair |
| March | 14° / 6°C | 43mm | 👍 Good |
| April | 18° / 10°C | 42mm | 🌟 Great |
| May | 23° / 15°C | 49mm | 🌟 Great |
| June | 28° / 20°C | 36mm | 🌟 Great |
| July | 31° / 22°C | 26mm | 👍 Good |
| August | 30° / 22°C | 25mm | 👍 Good |
| September | 26° / 18°C | 32mm | 🌟 Great |
| October | 20° / 13°C | 53mm | 🌟 Great |
| November | 14° / 8°C | 62mm | 👍 Good |
| December | 10° / 4°C | 64mm | 🤔 Fair |
January in Thessaloniki is chilly, with average daytime highs around 9°C (48°F) and nighttime lows near 2°C (36°F). Expect roughly 41mm of precipitation, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
February in Thessaloniki is chilly, with average daytime highs around 10°C (51°F) and nighttime lows near 3°C (38°F). Expect roughly 40mm of precipitation, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
March in Thessaloniki is chilly, with average daytime highs around 14°C (57°F) and nighttime lows near 6°C (43°F). Expect roughly 43mm of precipitation, with little rainfall.
🎒 What to pack — jacket or coat · long-sleeve layers
April in Thessaloniki is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 10°C (51°F). Expect roughly 42mm of precipitation, with little rainfall.
🎒 What to pack — light jacket · layers for cool evenings
May in Thessaloniki is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 15°C (60°F). Expect roughly 49mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
June in Thessaloniki is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 20°C (68°F). Expect roughly 36mm of precipitation, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
July in Thessaloniki is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 22°C (72°F). Expect roughly 26mm of precipitation, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
August in Thessaloniki is hot, with average daytime highs around 30°C (86°F) and nighttime lows near 22°C (72°F). Expect roughly 25mm of precipitation, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
September in Thessaloniki is warm, with average daytime highs around 26°C (78°F) and nighttime lows near 18°C (65°F). Expect roughly 32mm of precipitation, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
October in Thessaloniki is pleasantly warm, with average daytime highs around 20°C (69°F) and nighttime lows near 13°C (56°F). Expect roughly 53mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
November in Thessaloniki is mild, with average daytime highs around 14°C (58°F) and nighttime lows near 8°C (46°F). Expect roughly 62mm of precipitation, with a moderate amount of rain.
🎒 What to pack — light jacket · layers for cool evenings
December in Thessaloniki is chilly, with average daytime highs around 10°C (49°F) and nighttime lows near 4°C (39°F). Expect roughly 64mm of precipitation, with a moderate amount of rain.
🎒 What to pack — jacket or coat · long-sleeve layers