30YearWeather
Thessaloniki in December
Thessaloniki weather in December - Greece
🌤️Mild & Comfortable

Thessaloniki Weather in December

Plan your December trip to Thessaloniki, Greece. Based on 30 years of NASA data, expect temperatures of 11°C (high) to 4°C (low), with 23% rain probability and 8 hours of daily sunshine. The Aegean Sea averages 13°C in December. Pack rain gear for around 13 rainy days.

Avg High
11°C

Hottest around day 1

Avg Low
4°C

Coolest around day 24

Rainy Days
13days

23% avg rain chance

Sunshine
8hrs/day

Winter season

Sea Temperature in December

Aegean Sea(Αιγαίο Πέλαγος)

13.1°C

Monthly Average

Water Feel
🥶Polar Plunge

Consider a wetsuit for extended swimming

Swim Rating
❄️Cold water hazard

Based on average sea surface temperature

Body of Water
Aegean Sea

Αιγαίο Πέλαγος

Thessaloniki coastline

Thessaloniki December Weather Calendar

Click any day to see detailed weather information

Day 1
cloudy
Cloudy
13°C31%
Day 2
cloudy
Cloudy
13°C33%
Day 3
cloudy
Cloudy
13°C34%
Day 4
cloudy
Cloudy
13°C35%
Day 5
cloudy
Cloudy
12°C39%
Day 6
cloudy
Cloudy
12°C38%
Day 7
cloudy
Cloudy
12°C35%
Day 8
cloudy
Cloudy
12°C34%
Day 9
cloudy
Cloudy
11°C31%
Day 10
cloudy
Cloudy
11°C27%
Day 11
cloudy
Cloudy
11°C26%
Day 12
cloudy
Cloudy
11°C26%
Day 13
cloudy
Cloudy
11°C26%
Day 14
cloudy
Cloudy
11°C25%
Day 15
cloudy
Cloudy
10°C21%
Day 16
cloudy
Cloudy
10°C22%
Day 17
cloudy
Cloudy
10°C22%
Day 18
partly-cloudy-day
Nice
10°C17%
Day 19
partly-cloudy-day
Nice
10°C13%
Day 20
extreme-cold
Cold
9°C16%
Day 21
partly-cloudy-day
Nice
10°C13%
Day 22
partly-cloudy-day
Nice
10°C11%
Day 23
partly-cloudy-day
Nice
10°C12%
Day 24
partly-cloudy-day
Nice
10°C13%
Day 25
partly-cloudy-day
Nice
10°C12%
Day 26
partly-cloudy-day
Nice
11°C15%
Day 27
partly-cloudy-day
Nice
11°C16%
Day 28
partly-cloudy-day
Nice
10°C17%
Day 29
partly-cloudy-day
Nice
10°C17%
Day 30
partly-cloudy-day
Nice
10°C17%
Day 31
partly-cloudy-day
Nice
10°C14%

Essential Travel Info for Thessaloniki

🗓️ Best Time to Visit📖 Travel Guide🍴 Food Guide

Currency

EUR

€ Euro

Language

Greek

Driving

Right side

Connect

As of 2021, Thessaloniki has 5G from Cos...

Safety

High Safety

GPI: 1.838

Travel Intelligence

Exclusive flight analytics & health data for Thessaloniki

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
40/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Aug

Low

Jan

Monthly Traffic Distribution

51
Jan
72
Feb
74
Mar
76
Apr
80
May
95
Jun
96
Jul
100
Aug
94
Sep
85
Oct
64
Nov
68
Dec
Traffic Level
Low Season

Key Connections

Athens Eleftherios Venizelos (ATH)
Larnarca Larnaca (LCA)
Düsseldorf (DUS)
Frankfurt-am-Main (FRA)
Heraklion Nikos Kazantzakis (HER)

Health & Safety Advisory

CDC travel health recommendations

6 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Greece. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Greece.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Greece.If rabies exposures occur while in Greece, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Yellow Fever

CDC recommendations:Vaccine isnotrecommended.Country entry requirements:Vaccine isnotrequired.Updated April 23, 2025

Source: CDC Travelers' Health

View Complete Health Guide

Is December a Good Time to Visit Thessaloniki?

👌Worthwhile timing with some trade-offs
Short Answer

Thessaloniki in December features 13.1°C seas - too cold for swimming but stunning for coastal walks. Air temperatures average 11°C with 23% rain probability.

Decision Factors

Vaccinations required

Yellow Fever

Very high humidity

80% average humidity

Cold sea - swimming challenging

13.1°C sea temperature - Polar Plunge

Health precautions needed

Be aware of: Leptospirosis, Crimean-Congo Hemorrhagic fever, Leishmaniasis

Calm, family-friendly seas

0.19m wave height - Lake-like

Shoulder season - balanced conditions

68% of peak - good value with moderate crowds

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only 13.1°C - too cold for comfortable swimming

  • 👴
    Elderly travelers

    80% humidity creates difficult conditions

Related Guides

Best Time to VisitWhen to AvoidThessaloniki Overview
930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Thessaloniki in December averages 11°C with 23% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Thessaloniki in December

What are the temperatures in Thessaloniki in December?

Daytime highs average 11°C, nights drop to 4°C. Temperatures remain fairly consistent.

How many rainy days in Thessaloniki in December?

Expect around 13 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Thessaloniki in December?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is December peak season in Thessaloniki?

This is shoulder season—moderate prices and manageable crowds.