Greece weather in September
In September, Greece averages 27 to 30°C by day across Rhodes, Crete and Athens. Rhodes is the warmest at 30°C, Crete the coolest at 27°C. The sea is 26 to 27°C.
Greece in September, place by place
Warmest first. Anywhere at 24°C or more is proper beach weather. Tap a place for its full September detail.
Heading to Greece in September?
Share the places you've saved on TikTok and Instagram for Greece to Dream Trip. It pins them on a map and builds your days around them.
Greece in September: quick answers
Is Greece hot in September?
In September, Greece averages 27 to 30°C by day across Rhodes, Crete and Athens. Rhodes is the warmest at 30°C, Crete the coolest at 27°C. The sea is 26 to 27°C. September is hot in Rhodes: proper beach weather.
Where is warmest in Greece in September?
Rhodes, at an average high of 30°C. The driest is Rhodes, with about 5 mm of rain.
Can you swim in the sea in Greece in September?
Yes: Rhodes (27°C), Athens (26°C), Crete (26°C) have sea temperatures of 21°C or more, comfortable without a wetsuit.
How we measured this
Greece here means Rhodes, Crete and Athens: the places we measure. Figures are averages of every day from 2016 to 2025 from the Open-Meteo historical weather archive (ECMWF ERA5); sea temperatures are 2023 to 2025 averages. Rain is the average monthly total, and 150 mm or more counts as rainy season.
Planning Greece in September?
Save the places you find on TikTok and Instagram for Greece to one map, and Dream Trip turns them into a day-by-day plan.
