Weather in Kefallonia Regional Unit for September 2025
Until now, September 2025 in Kefallonia Regional Unit has been nearly identical to the historical average, with a temperature of 26.5 °C (showing only a slight deviation of -0.1 °C).
Expect cooler weather in the next days in Kefallonia Regional Unit with the forecast suggesting a temperature of 24.9 °C, lower than the historical average.
In general, the average temperature in Kefallonia Regional Unit at the beginning of September is 26.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23 °C by the end of September.
Kefallonia Regional Unit in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 68.3 mm.
Is September a good time to visit Kefallonia Regional Unit? check out the best time to travel to Kefallonia Regional Unit page.
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Kefallonia Regional Unit Weather September
Temperatures trend during September in Kefallonia Regional Unit
September weather in Kefallonia Regional Unit day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 26° /22° | 0.7 mm | 7 | |
| 2 Sept. | Sunny | 27° /21° | 0 mm | 7 | |
| 3 Sept. | Sunny | 28° /22° | 0 mm | 7 | |
| 4 Sept. |  Moderate rain at times | 27° /22° | 4.6 mm | 7 | |
| 5 Sept. | Sunny | 25° /20° | 3.2 mm | 6 | |
| 6 Sept. | Sunny | 27° /20° | 3.1 mm | 7 | |
| 7 Sept. |  Patchy rain possible | 27° /21° | 1 mm | 6 | |
| 8 Sept. | Sunny | 27° /21° | 0.1 mm | 7 | |
| 9 Sept. | Sunny | 27° /21° | 0.5 mm | 7 | |
| 10 Sept. | Sunny | 27° /21° | 6.4 mm | 7 | |
| 11 Sept. | Sunny | 27° /22° | 2.2 mm | 7 | |
| 12 Sept. | Sunny | 26° /21° | 0.8 mm | 7 | |
| 13 Sept. | Sunny | 27° /21° | 0.7 mm | 7 | |
| 14 Sept. |  Overcast | 25° /20° | 0.5 mm | 6 | |
| 15 Sept. | Sunny | 25° /20° | 1.1 mm | 6 | |
| 16 Sept. | Sunny | 27° /22° | 0 mm | 1.7 | |
| 17 Sept. | Sunny | 26° /22° | 0 mm | 1.6 | |
| 18 Sept. | Patchy rain possible | 27° /22° | 1.8 mm | 1.7 | |
| 19 Sept. | Patchy rain possible | 26° /20° | 0.2 mm | 1.6 | |
| 20 Sept. | Sunny | 27° /20° | 0 mm | 1.9 | |
| 21 Sept. | Sunny | 26° /21° | 0 mm | 6 | |
| 22 Sept. | Sunny | 26° /20° | 0 mm | 6 | |
| 23 Sept. | Sunny | 25° /21° | 0 mm | 6 | |
| 24 Sept. | Patchy rain possible | 25° /21° | 1 mm | 5 | |
| 25 Sept. | Patchy rain possible | 24° /22° | 0.4 mm | 5 | |
| 26 Sept. |  Partly cloudy | 22° /20° | 0 mm | 6 | |
| 27 Sept. | Sunny | 22° /19° | 0 mm | 6 | |
| 28 Sept. | Partly cloudy | 22° /19° | 0 mm | 6 | |
| 29 Sept. | Patchy rain possible | 23° /20° | 1.4 mm | 5 | |
| 30 Sept. |  Patchy light rain with thunder | 23° /19° | 1.4 mm | 6 | |
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Kefallonia Regional Unit weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 29°/23° | 25°/21° | 23°/19° |
| Rainfall | 10 mm | 68 mm | 20 mm |
| Wind | 21.3 km/h | 19.3 km/h | 17.8 km/h |
| Humidity | 64% | 66% | 69% |
| Rainy days | 2 days | 17 days | 4 days |
| Dry days | 29 days | 13 days | 27 days |
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Kefallonia Regional Unit in September - FAQ
Kefallonia Regional Unit water temperatures in September
The average water temperature of the Mediterranean Sea near Kefallonia Regional Unit in September is 24.2 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Kefallonia Regional Unit in September?
- The average water temperature in Kefallonia Regional Unit in September is 24.2 °C.
- Can you swim in Kefallonia Regional Unit in September?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
What to pack to Kefallonia Regional Unit in September?
As you prepare for your trip to Kefallonia Regional Unit 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 Kefallonia Regional Unit, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- 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
September rainfall patterns in Kefallonia Regional Unit
UV exposure in Kefallonia Regional Unit during September
Quick links
Where is Kefallonia Regional Unit?Get accurate weather forecasts for Kefallonia Regional Unit, located at latitude 38.122 and longitude 20.502. Stay updated with localized weather information tailored for Kefallonia Regional Unit.