Kefalonia Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Kefalonia, Greece in December.

🔎
Lassi Argostoli Trapezaki Agia Efimia

Planning a getaway to Kefalonia, Greece this December and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Kefalonia in December

Kefalonia, Greece is a region in Greece. December in Kefalonia generally has mild temperatures, with precipitation levels ranging from high to heavy.

Temperatures

You can expect mild maximum daytime temperatures of around 16°C (61°F) and nighttime temperatures around 13°C (55°F) in Lassi.

To learn more about the conditions in specific areas of Kefalonia, Greece, check out the map below.

Precipitation

In December, precipitation varies across different areas. From high rainfall in Kounopetra with an average of 156 mm (6.1 in) to heavy rainfall in Fiskardo with 179 mm (7 in). Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in Lassi.

Explore Kefalonia by month

Pick a month to see the average temperature, rainfall and sunshine in Kefalonia — and find the best time to visit. (based on Lassi)

January15°C (59°F) February15°C (59°F) March15°C (59°F) April17°C (63°F) May21°C (70°F) June24°C (75°F) This monthJuly26°C (79°F) August27°C (81°F) September25°C (77°F) October23°C (73°F) November19°C (66°F) December16°C (61°F)
Best Time to Visit Kefalonia →

Best Places to Visit in Kefalonia in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Kefalonia.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Kefalonia

What is the weather like in December for some of the most popular destinations in Kefalonia, Greece?

Temperature range in Kefalonia (December)

Precipitation variation in Kefalonia (December)

Lassi

In December Lassi generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 13°C (55°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Min temperature
16°C (61°F)
13°C (55°F)
12°C (54°F)
Monthly rainfall
160 mm (6.3 in)
160 mm (6.3 in)
126 mm (5 in)
Monthly rainy days
13 days
15 days
14 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Lassi →

Argostoli

In December Argostoli generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 13°C (55°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Min temperature
16°C (61°F)
13°C (55°F)
12°C (54°F)
Monthly rainfall
160 mm (6.3 in)
160 mm (6.3 in)
126 mm (5 in)
Monthly rainy days
13 days
15 days
14 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Argostoli →

Trapezaki

In December Trapezaki generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 13°C (55°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Min temperature
16°C (61°F)
13°C (55°F)
11°C (52°F)
Monthly rainfall
167 mm (6.6 in)
167 mm (6.6 in)
134 mm (5.3 in)
Monthly rainy days
13 days
15 days
14 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Trapezaki →

Agia Efimia

In December Agia Efimia generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 13°C (55°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Min temperature
16°C (61°F)
13°C (55°F)
11°C (52°F)
Monthly rainfall
168 mm (6.6 in)
169 mm (6.7 in)
132 mm (5.2 in)
Monthly rainy days
13 days
15 days
14 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Agia Efimia →

Svoronata

In December Svoronata generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 13°C (55°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
19°C (66°F)
16°C (61°F)
15°C (59°F)
Min temperature
16°C (61°F)
13°C (55°F)
12°C (54°F)
Monthly rainfall
162 mm (6.4 in)
162 mm (6.4 in)
129 mm (5.1 in)
Monthly rainy days
13 days
15 days
14 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Svoronata →

Is your destination not in the list? Have a look at all destinations in Kefalonia, in Greece.

In our records: Greece December extremes

Notable December records observed across cities in Greece in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in Greece dropped to -20°C (-4°F) in The Metéora on December 19, 2001.
  • In our records, the coldest December daytime high in Greece was -6°C (21°F) in The Metéora on December 20, 2001.

Popular cities in December

Day & night temperatures, rainfall and average weather in Kefalonia in December.

City Weather Day temp Night temp Rainfall
Lassi 16°C (61°F) 13°C (55°F) 160 mm (6.3 in)
Argostoli 16°C (61°F) 13°C (55°F) 160 mm (6.3 in)
Trapezaki 16°C (61°F) 13°C (55°F) 167 mm (6.6 in)
Agia Efimia 16°C (61°F) 13°C (55°F) 169 mm (6.7 in)
Svoronata 16°C (61°F) 13°C (55°F) 162 mm (6.4 in)
Lixouri 16°C (61°F) 13°C (55°F) 158 mm (6.2 in)

Kefalonia weather in December: frequently asked questions

What is the weather like in Kefalonia, Greece in December?

Expect unpleasant weather across Kefalonia, Greece in December. The popular destination of Lassi averages 16°C (61°F) by day and 13°C (55°F) at night during this month.

What is the average temperature in Kefalonia, Greece in December?

Daytime temperatures in Lassi peak at roughly 16°C (61°F) in December, dropping to about 13°C (55°F) overnight.

Does Kefalonia, Greece get a lot of rain in December?

Kefalonia, Greece sees substantial rainfall in December. Lassi typically averages about 160 mm (6.3 in), a mix of wet and dry days, but bring an umbrella.

Is December a Good Time to Visit Kefalonia, Greece?

In our opinion, December may not be the ideal time to visit Kefalonia, Greece due to the typically unpleasant weather in Lassi.

Generally speaking, the best visiting conditions can be found in May, June, July, August and September offering mostly perfect weather in Lassi. On the other hand, the months of January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Kefalonia.

Weather and climate has detailed information for every country in the world. Are you going to Greece? Get detailed historical weather averages for many cities in Greece.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Top 5 secluded beaches in Greece

Explore Greece's hidden gems: secluded beaches like Fokos, Seychelles, Potami, Kedrodasos, and Mouros for tranquil adventures away from crowds.
Discover Zakynthos

On the Greek island you can discover the rugged coastline, authentic old villages, a beautiful interior and the caves with the beautiful azure water.
Why Santorini should be on every Bucket List

This Greek island is home to some of the most stunning scenery globally, with its beautiful Caldera views, white-washed houses and crystal-clear waters.
Must visit in Greece →