Weather in Thessaloníki in August

A good month. August is a solid month to be in Thessaloníki. Highs average 32.9 °C, lows 21.3 °C, and rain falls on 4 days — nothing in the month is working against you.

August ranks 7 of 12 in Thessaloníki: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 32.9 °C days and 21.3 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 7 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest August day reached 40.7 °C and the coldest night fell to 15 °C, and the wettest single day dropped 27 mm — roughly 113% of the month's rain in one day.

August is moderately variable: 3 mm in the driest year against 83 mm in the wettest, around an average of 24 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.

Wind is light at 6.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 50%.

How August sits in the year

Temperatures hold steady either side: 33 °C in July, 32.9 here, 27.4 in September. Nothing about the timing within the month matters much.

Daylight in August

13.8 hours of daylight, losing 1.2 hours across the month. That is between Thessaloníki's extremes of 15.1 and 9.3 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 31.7 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Thessaloníki versus nearby

If Thessaloníki is one option among several, the nearby comparison is worth making. Lárisa is the weaker option in August — 2 °C warmer, the same number of rain days. Volos is a better bet in August — 4.1 °C cooler, the same number of rain days.

So: August is a compromise. September is 19 points better and is what Thessaloníki is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Thessaloníki

See all twelve months in Thessaloníki, or where else to go in August.