Kos
September
Weather in Kos for September 2025
Your guide to Kos weather in September - trends and predictions
In general, the average temperature in Kos at the beginning of September is 28.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25.7 °C by the end of September.
With an average of 5 rainy days, Kos experiences minimal rainfall in September.
Is September a good time to visit Kos? check out the best time to travel to Kos page.
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25
Dry days
5
Rainy days
0
Snow days
27°/22°
Temperatures
23 km/h
Avg max wind
62 %
Avg humidity
Kos in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 29° | 3 28° | 4 28° | 5  28° | 6 29° | 7 29° |
| 8 28° | 9 27° | 10 27° | 11 27° | 12 27° | 13 27° | 14 27° |
| 15 27° | 16 27° | 17  27° | 18 26° | 19 26° | 20 26° | 21 26° |
| 22 27° | 23 27° | 24 27° | 25 26° | 26 26° | 27 26° | 28 26° |
| 29 25° | 30 24° |
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Temperatures trend during September in Kos
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 | 28° /22° | 0 mm | 7 | |
| 2 Sept. | Sunny | 29° /24° | 0 mm | 7 | |
| 3 Sept. | Sunny | 28° /23° | 0 mm | 7 | |
| 4 Sept. | Sunny | 28° /23° | 0.7 mm | 7 | |
| 5 Sept. | Patchy rain possible | 28° /23° | 1.4 mm | 7 | |
| 6 Sept. | Patchy rain possible | 29° /23° | 0.2 mm | 7 | |
| 7 Sept. | Sunny | 29° /23° | 0 mm | 8 | |
| 8 Sept. | Sunny | 28° /23° | 0 mm | 7 | |
| 9 Sept. | Sunny | 27° /23° | 0 mm | 7 | |
| 10 Sept. | Patchy rain possible | 27° /22° | 0.4 mm | 6 | |
| 11 Sept. | Sunny | 27° /23° | 1.9 mm | 7 | |
| 12 Sept. | Sunny | 27° /22° | 0.1 mm | 7 | |
| 13 Sept. | Sunny | 27° /22° | 0.1 mm | 7 | |
| 14 Sept. | Sunny | 27° /22° | 0.1 mm | 7 | |
| 15 Sept. | Sunny | 27° /22° | 0 mm | 7 | |
| 16 Sept. | Sunny | 27° /22° | 0 mm | 7 | |
| 17 Sept. | Overcast | 27° /21° | 0 mm | 7 | |
| 18 Sept. | Sunny | 26° /21° | 0 mm | 7 | |
| 19 Sept. | Sunny | 26° /21° | 0 mm | 7 | |
| 20 Sept. | Sunny | 26° /21° | 0 mm | 7 | |
| 21 Sept. | Sunny | 26° /21° | 0 mm | 7 | |
| 22 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 23 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 24 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 25 Sept. | Overcast | 26° /21° | 0 mm | 7 | |
| 26 Sept. | Sunny | 26° /20° | 0 mm | 7 | |
| 27 Sept. | Sunny | 26° /21° | 0 mm | 7 | |
| 28 Sept. | Patchy rain possible | 26° /21° | 0.5 mm | 7 | |
| 29 Sept. | Sunny | 25° /21° | 0 mm | 7 | |
| 30 Sept. | Sunny | 24° /20° | 0.1 mm | 6 | |
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Important Notice
Our weather forecast for Kos 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 Kos forecast closer to your planned date for the most up-to-date weather information.
Kos in September - FAQ
What are the expected maximum and minimum temperatures in Kos during September?
During September, expect a variety of temperatures with highs around 27° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Kos during September?
Rainfall in Kos during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 5 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Kos during September?
The average wind speed in Kos during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Kos in September?
As you prepare for your trip to Kos 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 Kos, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Kos
Explore the daily rainfall trends and prepare for Koss September weather 💧
UV exposure in Kos during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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