Piraeus
September
Weather in Piraeus for September 2025
Your guide to Piraeus weather in September - trends and predictions
In general, the average temperature in Piraeus at the beginning of September is 29.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.1 °C by the end of September.
Piraeus sees moderate rainfall in September, averaging 6 rainy days.
Is September a good time to visit Piraeus? check out the best time to travel to Piraeus page.
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24
Dry days
6
Rainy days
0
Snow days
27°/21°
Temperatures
20 km/h
Avg max wind
53 %
Avg humidity
Piraeus in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 30° | 3 30° | 4  30° | 5  28° | 6 29° | 7 29° |
| 8  28° | 9  27° | 10 27° | 11 25° | 12 27° | 13 29° | 14 28° |
| 15 28° | 16 27° | 17 27° | 18 25° | 19 27° | 20 27° | 21 27° |
| 22 28° | 23 28° | 24  28° | 25  27° | 26 26° | 27 25° | 28 26° |
| 29 27° | 30  24° |
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Temperatures trend during September in Piraeus
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 29° /22° | 0.1 mm | 7 | |
| 2 Sept. | Sunny | 30° /23° | 0 mm | 8 | |
| 3 Sept. | Sunny | 30° /23° | 0 mm | 8 | |
| 4 Sept. | Patchy rain possible | 30° /23° | 0.1 mm | 7 | |
| 5 Sept. | Moderate or heavy rain shower | 28° /22° | 12 mm | 7 | |
| 6 Sept. | Light rain shower | 29° /23° | 5.1 mm | 7 | |
| 7 Sept. | Patchy rain possible | 29° /23° | 0.1 mm | 7 | |
| 8 Sept. | Cloudy | 28° /22° | 0 mm | 7 | |
| 9 Sept. | Partly cloudy | 27° /22° | 0 mm | 7 | |
| 10 Sept. | Sunny | 27° /22° | 0.6 mm | 7 | |
| 11 Sept. | Sunny | 25° /20° | 1.8 mm | 6 | |
| 12 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 13 Sept. | Sunny | 29° /21° | 0 mm | 7 | |
| 14 Sept. | Partly cloudy | 28° /22° | 0 mm | 7 | |
| 15 Sept. | Sunny | 28° /22° | 0 mm | 8 | |
| 16 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 17 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 18 Sept. | Sunny | 25° /20° | 0 mm | 6 | |
| 19 Sept. | Sunny | 27° /19° | 0 mm | 7 | |
| 20 Sept. | Sunny | 27° /20° | 0 mm | 7 | |
| 21 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 22 Sept. | Sunny | 28° /21° | 0 mm | 8 | |
| 23 Sept. | Sunny | 28° /22° | 0 mm | 8 | |
| 24 Sept. | Overcast | 28° /23° | 0 mm | 7 | |
| 25 Sept. | Patchy light rain with thunder | 27° /22° | 0.9 mm | 7 | |
| 26 Sept. | Patchy rain possible | 26° /21° | 0.2 mm | 7 | |
| 27 Sept. | Moderate or heavy rain shower | 25° /21° | 16 mm | 6 | |
| 28 Sept. | Light rain shower | 26° /20° | 3.8 mm | 6 | |
| 29 Sept. | Patchy rain possible | 27° /21° | 0.1 mm | 7 | |
| 30 Sept. | Thundery outbreaks possible | 24° /19° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Piraeus in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Piraeus forecast closer to your planned date for the most up-to-date weather information.
Piraeus in September - FAQ
What are the expected maximum and minimum temperatures in Piraeus during September?
During September, expect a variety of temperatures with highs around 27° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Piraeus during September?
Moderate rainfall is anticipated in Piraeus during September, with a total of 76.5 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Piraeus during September?
The average wind speed in Piraeus during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Piraeus in September?
As you prepare for your trip to Piraeus 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 Piraeus, 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 Piraeus
Explore the daily rainfall trends and prepare for Piraeuss September weather 💧
UV exposure in Piraeus during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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