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Weather in Kefalonia for December 2025

Your guide to Kefalonia weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Kefalonia has been nearly identical to the historical average, with a temperature of 15.2 °C (showing only a slight deviation of -0.1 °C).

  • The forecast for the next days in Kefalonia predicts temperatures to be around 15 °C, close to the historical average.

  • In general, the average temperature in Kefalonia at the beginning of December is 15.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 14 °C by the end of December.

    • Rain 🌧️

  • Kefalonia in December brings notable rainfall, with an average of 18 rainy days and a total precipitation of 119 mm.

    • More

  • Is December a good time to visit Kefalonia? check out the best time to travel to Kefalonia page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
13
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/12°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Kefalonia Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
16°
2
Patchy rain possible
16°
3
Patchy rain possible
16°
4
Light rain shower
15°
5
Patchy light drizzle
14°
6
Light rain shower
16°
7
Light rain shower
15°
8
Patchy rain possible
15°
9
Partly cloudy
15°
10
Partly cloudy
15°
11
Partly cloudy
15°
12
Patchy rain possible
15°
13
Cloudy
16°
14
Patchy rain possible
16°
15
Patchy rain possible
16°
16
Partly cloudy
15°
17
Sunny
16°
18
Sunny
16°
19
Partly cloudy
16°
20
Moderate rain
14°
21
Patchy rain possible
16°
22
Patchy rain possible
15°
23
Patchy rain possible
16°
24
Patchy rain possible
15°
25
Partly cloudy
15°
26
Sunny
14°
27
Partly cloudy
14°
28
Patchy rain possible
14°
29
Patchy rain possible
13°
30
Patchy rain possible
14°
31
Overcast
14°

Temperatures trend during December in Kefalonia

See the weather trend as well as the moving average line

December weather in Kefalonia day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 16° /12° 1.5 mm 4
2 Dec. Patchy rain possible
Patchy rain possible
 16° /13° 1.7 mm 4
3 Dec. Patchy rain possible
Patchy rain possible
 16° /14° 7.1 mm 4
4 Dec. Light rain shower
Light rain shower
 15° /13° 13 mm 4
5 Dec. Patchy light drizzle
Patchy light drizzle
 14° /13° 22.1 mm 3
6 Dec. Light rain shower
Light rain shower
 16° /13° 9.8 mm 4
7 Dec. Light rain shower
Light rain shower
 15° /12° 11.4 mm 4
8 Dec. Patchy rain possible
Patchy rain possible
 15° /11° 4.4 mm 4
9 Dec. Partly cloudy
Partly cloudy
 15° /11° 4.4 mm 4
10 Dec. Partly cloudy
Partly cloudy
 15° /11° 2.8 mm 4
11 Dec. Partly cloudy
Partly cloudy
 15° /11° 0.9 mm 4
12 Dec. Patchy rain possible
Patchy rain possible
 15° /12° 0.1 mm 4
13 Dec. Cloudy
Cloudy
 16° /12° 0 mm 4
14 Dec. Patchy rain possible
Patchy rain possible
 16° /13° 2.2 mm 4
15 Dec. Patchy rain possible
Patchy rain possible
 16° /12° 0.1 mm 0.4
16 Dec. Partly cloudy
Partly cloudy
 15° /11° 0 mm 0.3
17 Dec. Sunny
Sunny
 16° /13° 0 mm 0.3
18 Dec. Sunny
Sunny
 16° /14° 0 mm 0.4
19 Dec. Partly cloudy
Partly cloudy
 16° /13° 0 mm 0.5
20 Dec. Moderate rain
Moderate rain
 14° /12° 6.3 mm 3
21 Dec. Patchy rain possible
Patchy rain possible
 16° /13° 0.5 mm 3
22 Dec. Patchy rain possible
Patchy rain possible
 15° /14° 3.3 mm 3
23 Dec. Patchy rain possible
Patchy rain possible
 16° /14° 3.2 mm 3
24 Dec. Patchy rain possible
Patchy rain possible
 15° /13° 4.3 mm 3
25 Dec. Partly cloudy
Partly cloudy
 15° /12° 0 mm 4
26 Dec. Sunny
Sunny
 14° /12° 0 mm 4
27 Dec. Partly cloudy
Partly cloudy
 14° /11° 0 mm 4
28 Dec. Patchy rain possible
Patchy rain possible
 14° /11° 0.1 mm 3
29 Dec. Patchy rain possible
Patchy rain possible
 13° /9° 0.1 mm 4
30 Dec. Patchy rain possible
Patchy rain possible
 14° /10° 0.3 mm 4
31 Dec. Overcast
Overcast
 14° /10° 0 mm 4
Next
Important Notice
Our weather forecast for Kefalonia in December 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 Kefalonia forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Kefalonia weather in December vs November vs January

Compare December weather in Kefalonia with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
NovemberDecemberJanuary
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures18°/15°14°/12°14°/11°
Rainfall157 mm119 mm157 mm
Wind25.7 km/h21 km/h20.8 km/h
Humidity69%72%73%
Rainy days21 days18 days15 days
Dry days9 days13 days16 days

Planning a trip to Kefalonia? Discover the best time to visit

Kefalonia in December - FAQ

What are the expected maximum and minimum temperatures in Kefalonia during December?
During December, expect a variety of temperatures with highs around 14° and lows near 12°, suitable for diverse activities and preferences.
How much rainfall should be expected in Kefalonia during December?
Significant rainfall exceeding 119 mm is expected in Kefalonia during December, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Kefalonia during December?
The average wind speed in Kefalonia during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Kefalonia water temperatures in December

The average water temperature of the Mediterranean Sea near Kefalonia in December is 18.6 °C. Temperatures remain fairly consistent throughout the month.

What is the water temperature in Kefalonia in December?
The average water temperature in Kefalonia in December is 18.6 °C.
Can you swim in Kefalonia in December?
Refreshing and invigorating. Expect to feel chilled after 10–20 minutes; a shorty wetsuit extends water time, especially at dawn.

What to pack to Kefalonia in December?

As you prepare for your trip to Kefalonia in December, 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 Kefalonia, during December, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

December rainfall patterns in Kefalonia

Explore the daily rainfall trends and prepare for Kefalonias December weather 💧
Typically, Kefalonia has 18 rainy days in December with a total of 119 mm of rainfall.

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Location coordinates Where is Kefalonia?

Get accurate weather forecasts for Kefalonia, located at latitude 38.122 and longitude 20.502. Stay updated with localized weather information tailored for Kefalonia.

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