Weather in Santorini 🇬🇷
Monthly weather averages & travel planning
January
Avg Temp
13°C
Rain Days
10 days
Sun Hours
8 hrs
Humidity
65%
Europe › 🇬🇷 Greece › Santorini
Updated: March 2026
Is January a Good Time to Visit Santorini?
4/10
Fair
January is a fair time to visit Santorini (4/10). With 8 daily sunshine hours and only 10 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 11th sunniest of the year in Santorini. January suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 10 potential rain days. February offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Santorini's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
vs December:15°C avg high
The single most important thing to know about visiting Santorini in January: conditions are genuinely cooperative, with 13°C highs and only 10 wet days making this one of the more straightforward months to plan around. Precipitation totals 60mm for the month, spread across roughly 10 days, and 8 sunshine hours per day give you a reliable window for outdoor plans.
13°C
55°F
Avg High
11°C
52°F
Avg Low
10 days
60 mm total
Rain Days
8h
per day avg
Sunshine
65%
Moderate
Humidity
Temperature in Santorini in January
The narrow 2°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. The UV index of 2 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Average wind speeds of 36 km/h add a meaningful windchill factor, making the 13°C temperature feel cooler than it reads. In Fahrenheit: 55°F average high, 52°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Santorini in January
Morning11°CBefore the day warms up
Afternoon13°CPeak daytime temperature
Evening14°CAfter sunset cools down
Packing for Santorini in January means dressing for 13°C days and 11°C evenings. A mid-weight jacket over a sweater handles 13°C daytime temperatures; the combination stays comfortable all day without overheating. Evening temperatures settle at 11°C, a modest 2°C drop that a light cardigan or denim jacket covers. European cobblestones reward low-profile walking shoes over flip-flops or heels, with cushioned trainers or leather walking shoes being the practical choice. A compact foldable umbrella weighs almost nothing and earns its keep across 10 potential rainy days.
Local tip: Many of Santorini's museums and galleries maintain cool interior temperatures regardless of outdoor conditions. A compact layer in your daypack lets you move between warm streets and chilled exhibition halls without discomfort.
Events in Santorini in January
January has no major festivals or public holidays in Santorini, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Santorini in January
Based on 13°C average highs and 10 rainy days
- Warm jacket (down or fleece)
- Merino wool base layer (regulates temperature and resists odour)
- Sweaters and lined trousers
- Scarf and lightweight gloves
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Santorini in January
- Explore the old town's cobblestone backstreetsMorning (9-11am)At 13°C, conditions are pleasant for unhurried exploration on foot
- Visit hilltop viewpoints for panoramic city viewsLate afternoon (4-6pm)Low sun angle creates dramatic light for photography while temperatures remain comfortable
- Bicycle rental for a half-day city circuitMid-morning startMild 13°C temperatures are ideal for extended cycling without excessive effort
- Boat tour of the river, bay, or canal networkLate morning departureComfortable weather makes open-deck boats viable without wind-chill concerns
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningJanuary brings distinct seasonal changes to public green spaces worth exploring
- Warm up with traditional hot dishes: local stew, fondue, or braised specialities at a neighbourhood restaurantLunch (12-2pm) or dinner (7-9pm)Cold-weather cuisine is a genuine cultural experience and the best local restaurants serve their heartiest dishes in cooler months
Why is Santorini cool in January?
In January, the Azores High weakens and retreats southward, allowing Atlantic storm tracks to cross the Mediterranean and bring the city its seasonal rainfall. Temperatures average 13°C during the day and drop to 11°C at night as cold continental air occasionally pushes in from the north. This is the rainy season that keeps the region's landscape green through spring. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Santorini in January
In January, Santorini experiences average highs of 13°C (55°F) and lows of 11°C (52°F). Expect around 10 rainy days and 8 hours of sunshine per day, with humidity averaging 65%. The 2°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV exposure is moderate at index 2.
Santorini typically sees 10 rainy days in January, with total precipitation of around 60mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Santorini typically sees 4-6 fewer rain days than January.
Pack a warm jacket, sweaters, and layering pieces for Santorini in January. Temperatures can drop to 11°C at night, so thermal underlayers are advisable for evening outings. Waterproof footwear is important with 10 rainy days expected. A scarf, hat, and gloves handle the windchill on clear cold days, which often feel colder than the thermometer reads.
Yes, January is an excellent time to visit Santorini. With 8 daily sunshine hours and only 10 rainy days, conditions are ideal for sightseeing and outdoor activities. Temperatures averaging 13°C during the day are comfortable for long walks and outdoor dining. This is peak travel season, so booking accommodation in advance and arriving at popular attractions early in the morning helps avoid the busiest periods.
The average high temperature in Santorini in January is 13°C (55°F), and the average low is 11°C (52°F). The mean daily temperature is approximately 12°C (54°F). The day-to-night range of 2°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Santorini is generally June. June offers the most sunshine at 14 hours per day and only 1 rainy days. Average temperatures reach 24°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around June gives you the best chance of dry, bright weather.
January is shoulder or low season in Santorini, meaning fewer tourists and generally lower prices than peak months. With 8 sunshine hours and 10 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In January, Santorini suits a range of activities thanks to cool conditions around 13°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 8 hours of sunshine, parks and waterfront walks are particularly enjoyable.
January ranks 11th sunniest of the year in Santorini, with an average 8 daily sunshine hours. The driest months are July, August, and June. August is the hottest month (27°C avg high); January is the coolest (13°C). From here, temperatures rise 1°C into February. Compared to last month (December: 15°C high, 9 rain days), January is cooler and wetter. January is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 13°C | 11°C | 10 | 8h | View |
| February | 14°C | 11°C | 9 | 9h | View |
| March | 15°C | 12°C | 7 | 10h | View |
| April | 17°C | 14°C | 4 | 12h | View |
| May | 21°C | 17°C | 2 | 13h | View |
| June | 24°C | 21°C | 1 | 14h | View |
| July | 26°C | 23°C | 0 | 13h | View |
| August | 27°C | 24°C | 0 | 13h | View |
| September | 25°C | 22°C | 1 | 12h | View |
| October | 22°C | 18°C | 4 | 10h | View |
| November | 18°C | 15°C | 6 | 9h | View |
| December | 15°C | 12°C | 9 | 8h | View |
January
10 rain days, 8h sun
13°11°
February
9 rain days, 9h sun
14°11°
March
7 rain days, 10h sun
15°12°
April
4 rain days, 12h sun
17°14°
May
2 rain days, 13h sun
21°17°
June
1 rain days, 14h sun
24°21°
July
0 rain days, 13h sun
26°23°
August
0 rain days, 13h sun
27°24°
September
1 rain days, 12h sun
25°22°
October
4 rain days, 10h sun
22°18°
November
6 rain days, 9h sun
18°15°
December
9 rain days, 8h sun
15°12°
Other Months in Santorini
Plan Your Trip to Santorini
Nearby Destinations
Cities within 500 km with comparable weather conditions
Data Sources for Santorini
Climate normals represent 30-year averages (1991-2020). Individual years may vary.