Weather in Athens for September 2025
In general, the average temperature in Athens at the beginning of September is 30.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.3 °C by the end of September.
Athens sees moderate rainfall in September, averaging 7 rainy days.
Is September a good time to visit Athens? check out the best time to travel to Athens page.
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Athens in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2 31° | 3 31° | 4  31° | 5  29° | 6  30° | 7 30° |
| 8  28° | 9 28° | 10 27° | 11 26° | 12 28° | 13 30° | 14 29° |
| 15 29° | 16 29° | 17 27° | 18 25° | 19 27° | 20 27° | 21 28° |
| 22 28° | 23 29° | 24  29° | 25  29° | 26 27° | 27 26° | 28 26° |
| 29 29° | 30  25° |
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Temperatures trend during September in Athens
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 31° /21° | 0 mm | 7 | |
| 2 Sept. | Sunny | 31° /21° | 0 mm | 8 | |
| 3 Sept. | Sunny | 31° /21° | 0 mm | 8 | |
| 4 Sept. | Cloudy | 31° /21° | 0.2 mm | 7 | |
| 5 Sept. | Moderate or heavy rain shower | 29° /21° | 18.2 mm | 7 | |
| 6 Sept. | Light rain shower | 30° /21° | 10.1 mm | 7 | |
| 7 Sept. | Patchy rain possible | 30° /21° | 0.2 mm | 7 | |
| 8 Sept. | Partly cloudy | 28° /20° | 0 mm | 8 | |
| 9 Sept. | Partly cloudy | 28° /20° | 0 mm | 7 | |
| 10 Sept. | Sunny | 27° /21° | 0.7 mm | 7 | |
| 11 Sept. | Sunny | 26° /19° | 1.6 mm | 6 | |
| 12 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 13 Sept. | Sunny | 30° /20° | 0 mm | 8 | |
| 14 Sept. | Partly cloudy | 29° /20° | 0 mm | 8 | |
| 15 Sept. | Sunny | 29° /19° | 0 mm | 8 | |
| 16 Sept. | Sunny | 29° /20° | 0 mm | 8 | |
| 17 Sept. | Sunny | 27° /19° | 0 mm | 7 | |
| 18 Sept. | Sunny | 25° /18° | 0.1 mm | 7 | |
| 19 Sept. | Sunny | 27° /17° | 0 mm | 7 | |
| 20 Sept. | Sunny | 27° /19° | 0 mm | 7 | |
| 21 Sept. | Partly cloudy | 28° /19° | 0 mm | 7 | |
| 22 Sept. | Sunny | 28° /19° | 0 mm | 8 | |
| 23 Sept. | Sunny | 29° /21° | 0 mm | 8 | |
| 24 Sept. | Overcast | 29° /21° | 0 mm | 7 | |
| 25 Sept. | Patchy light rain with thunder | 29° /20° | 1.4 mm | 7 | |
| 26 Sept. | Patchy rain possible | 27° /20° | 0.1 mm | 7 | |
| 27 Sept. | Patchy light rain with thunder | 26° /20° | 18.2 mm | 6 | |
| 28 Sept. | Light rain shower | 26° /19° | 4.2 mm | 6 | |
| 29 Sept. | Patchy rain possible | 29° /18° | 0.1 mm | 7 | |
| 30 Sept. | Thundery outbreaks possible | 25° /18° | 0 mm | 6 | |
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Guide for Athens in September
In September, Athens, Greece experiences a transition from the warm summer weather to the pleasant autumn climate. At the beginning of the month, the average temperature in Athens is around 28°, with mostly sunny days and little to no rainfall.
The sea temperature remains warm, making it ideal for beach activities and water sports. However, occasional heatwaves can still occur, so visitors should be prepared for some hot days.
As the month progresses, the average temperature gradually decreases to around 24°, bringing cooler and more comfortable weather. The chance of rain slightly increases towards the end of September, but it is still relatively low compared to the winter months.
The evenings become cooler, making outdoor dining and evening strolls more enjoyable.
Overall, September is a fantastic time to visit Athens, as the weather is generally warm and sunny, perfect for exploring the city's historical sites and enjoying outdoor activities.
Visitors can also take advantage of the pleasant weather to visit the nearby islands or enjoy the beautiful beaches along the Athenian Riviera.
Athens in September - FAQ
What to pack to Athens in September?
As you prepare for your trip to Athens in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Athens, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Athens
UV exposure in Athens during September
Quick links
Where is Athens?Get accurate weather forecasts for Athens, located at latitude 37.984 and longitude 23.728. Stay updated with localized weather information tailored for Athens.