30YearWeather
Santorini in January
Santorini weather in January - Greece
🌤️Mild & Comfortable

Santorini Weather in January

Plan your January trip to Santorini, Greece. Based on 30 years of NASA data, expect temperatures of 14°C (high) to 11°C (low), with 21% rain probability and 8 hours of daily sunshine. The Aegean Sea averages 18°C in January. Great conditions with only 0 rainy days expected.

Avg High
14°C

Hottest around day 1

Avg Low
11°C

Coolest around day 25

Rainy Days
0days

21% avg rain chance

Sunshine
8hrs/day

Winter season

Sea Temperature in January

Aegean Sea(Αιγαίο Πέλαγος)

17.9°C

Monthly Average

Water Feel
💧Refreshing

Consider a wetsuit for extended swimming

Swim Rating
🏄Cool, wetsuits recommended

Based on average sea surface temperature

Body of Water
Aegean Sea

Αιγαίο Πέλαγος

Santorini coastline

Santorini January Weather Calendar

Click any day to see detailed weather information

Currency

EUR

Euro

Language

Greek

Driving

Right side

Connect

There are some local radio stations in S...

Safety

High Safety

GPI: 1.838

Travel Intelligence

Exclusive flight analytics & health data for Santorini

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Low Traffic
20/ 100
Traffic Index

Quieter airport

Peak Daily Arrivals

0

slots per day

Peak

Jul

Low

Jan

Monthly Traffic Distribution

8
Jan
10
Feb
11
Mar
23
Apr
31
May
39
Jun
49
Jul
48
Aug
40
Sep
28
Oct
12
Nov
11
Dec
Traffic Level
Low Season

Key Connections

Athens Eleftherios Venizelos (ATH)
Milan Malpensa (MXP)
Nápoli Naples (NAP)

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 January a Good Time to Visit Santorini?

👍Great time to visit - recommended
Short Answer

Smart travelers know January in Santorini: 14°C temperatures, 21% rain probability, and only 16% of peak-season crowds. Better prices, similar experience.

Decision Factors

Vaccinations required

Yellow Fever

Seismically active region

23 earthquakes recorded in this month (30-year data)

Off-peak season - fewer crowds

Only 16% of peak - better deals and empty crowds

Health precautions needed

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

Good For

  • 💰
    Budget travelers

    Off-peak pricing with acceptable weather conditions

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 14.1°C temperatures and low 21% rain risk

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 80/100 with romantic weather conditions

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only 17.9°C - too cold for comfortable swimming

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Santorini in January averages 14°C with 21% precipitation probability."

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

Frequently Asked Questions: Santorini in January

What are the temperatures in Santorini in January?

Daytime highs average 14°C, nights drop to 11°C. Temperatures remain fairly consistent.

How many rainy days in Santorini in January?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Santorini in January?

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

Is January peak season in Santorini?

This is shoulder season—moderate prices and manageable crowds.