Monthly climate guide
Thessaloniki weather in September
Expect hot weather in Thessaloniki in September: afternoons reach about 28°C (83°F), while nights drop to around 18°C (64°F). Around 47 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are 5°C cooler than August and 7°C warmer than October.
What stands out in September
- September brings early autumn to Thessaloniki.
- Thessaloniki is usually about 3°C warmer than Halkidiki, 70 km away, in September.
- With the heat, see Rotunda early in the morning or late in the afternoon.
- Temperatures are falling — expect highs around 7°C lower by October.
Avg high
28°C
83°F
Avg low
18°C
64°F
Rainfall
47 mm
fairly dry
Humidity
59%
relative
Sky
47%
cloud · a mix of sun and cloud
Thessaloniki weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 9°C / 48°F | 1°C / 34°F | 43 mm | 82% | 67% |
| February | 11°C / 52°F | 3°C / 38°F | 43 mm | 81% | 69% |
| March | 14°C / 58°F | 5°C / 41°F | 57 mm | 77% | 64% |
| April | 19°C / 66°F | 9°C / 47°F | 37 mm | 71% | 58% |
| May | 24°C / 76°F | 14°C / 56°F | 47 mm | 65% | 60% |
| June | 30°C / 86°F | 19°C / 65°F | 39 mm | 57% | 46% |
| July | 33°C / 92°F | 21°C / 71°F | 27 mm | 50% | 29% |
| August | 33°C / 92°F | 22°C / 71°F | 27 mm | 49% | 30% |
| September | 28°C / 83°F | 18°C / 64°F | 47 mm | 59% | 47% |
| October | 22°C / 71°F | 12°C / 53°F | 39 mm | 71% | 55% |
| November | 16°C / 60°F | 8°C / 46°F | 46 mm | 79% | 66% |
| December | 11°C / 51°F | 3°C / 37°F | 55 mm | 81% | 62% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A small travel umbrella, just in case
Is September a good time to visit Thessaloniki?
Our Thessaloniki guide recommends: April to June or September to October for comfortable temperatures.
Thessaloniki is considered Greece's food capital by many Greeks themselves — its street food and tavernas are worth building time around.
Best time to visit Thessaloniki →Other Greece cities in September
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Thessaloniki weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/greece/thessaloniki/september
<a href="https://weathercompare.eu/weather/greece/thessaloniki/september">Thessaloniki weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/greece/thessaloniki" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Thessaloniki weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/greece/thessaloniki/september">Thessaloniki weather in September</a> – WeatherCompare</p>
Thessaloniki in September: quick answers
Is September a good time to visit Thessaloniki?
Yes. September is one of the best months for Thessaloniki, with highs around 28°C and about 47 mm of rain.
How warm is Thessaloniki in September?
Average highs are about 28°C (83°F) and average lows about 18°C (64°F), based on 10 years of daily data.
Does it rain a lot in Thessaloniki in September?
Thessaloniki typically gets around 47 mm of rain in September — fairly dry.
When is the best time to visit Thessaloniki?
April to June or September to October for comfortable temperatures.
Figures are long-term averages for the area around Thessaloniki (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.