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Kefalonia, Greece · Temperate oceanic

Kefalonia in January: go or not?

Tough period. Kefalonia in January only reaches 4.2/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 38.18°N · 20.49°E
⚡ This month's verdict
Avoid
Kefalonia · January
4.2
9–14°
Temperature
29%
Rain
5h
Sun
🌊 Seaside☀️ Bright🍴 Gastronomy
Photo : Feri & Tasos via Unsplash
The month in detail

What to expect in January

In January, Kefalonia sees 14°C during the day with 4.8h of sunshine per day. Expect rain on 29% of days — a light raincoat in the bag is recommended.

January ranks 12 out of 12 months in Kefalonia. Compared to December: −2°C daytime, 10 pts fewer rainy days.

This month's conditions

What it's like in January

UV index
3 · low
no protection needed
Feels like
dry air
7°
Sea
17°C
cold, for the brave
Daylight
9.6h of daylight
Air quality
good
AQI 28
Compare

Is January the right month?

The best month in Kefalonia is June (9.3/10), 5.1 pts higher than January.

See June →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Kefalonia

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · Greece

🗣️LanguageGreek
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTemperate oceanic
📈Climate trendData unavailable
🔥Hottest monthJuly · 30°C
❄️Coolest monthJanuary · 14°C
🌧️Rainiest month ⓘDecember · 39%

🏖️ Beach holiday

📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Location

Where is Kefalonia ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Greece
Temperate oceanic climate with a 9.3 → 4.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
38.18°N · 20.49°E
Questions

Frequently asked questions

What is the best time to visit Kefalonia?
June is the best month with 27.0°C highs, 21.0°C lows, 9.3h of sunshine and 3.0% rainy days. The months of June & September offer comparable conditions.
How many hours of sunshine does Kefalonia get in June?
Kefalonia averages 9.3 sunshine hours per day in June. It is the sunniest month with a climate score of 9.1/10.
What is the rainiest month in Kefalonia?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Kefalonia in June?
In June, overnight lows reach 21.0°C, while afternoon highs average 27.0°C.
Is Kefalonia good in winter?
In winter (December-February), Kefalonia scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 9.1/10.
When should you avoid Kefalonia?
January is the most difficult month to visit Kefalonia, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Kefalonia in January?
In January, the sea averages 17°C in Kefalonia: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in Kefalonia in January?
The average UV index reaches 3 in January in Kefalonia (low), with about 9.6h of daylight. No protection needed.