Your January weather guide
CoolWeather in Halkidiki in January
January suits a cool-weather break in Halkidiki, not a beach holiday. Average daytime temperatures reach around 10°C, nights fall to about 6°C, and the sea sits near 14°C. For a UK traveller, the appeal is a modest lift in daytime warmth rather than a change of season. Go if you are happy wrapping up for time outdoors and keeping plans flexible around rain; choose another month if warmth and swimming are the main reasons for travelling.
Long-term climate averages for Nea Moudania, not a forecast · 1991-2020
Halkidiki, month by month
Your snapshot
At a glance
The useful details for Nea Moudania.
- Average daytime high
- 10.1°C
- 9 in 10 days stay below 14°C
- Average night-time low
- 5.7°C
- coldest 10% of nights: 2°C or lower
- Compared with London
- +2.7°C
- London averages 7.4°C in January
- Sea temperature
- 14.1°C
- year to year: 13°C to 15°C
- Sunshine per day (est.)
- 4.2h
- 44% of 9.5 h of daylight
- Rainy days (1 mm+)
- 8
- 56 mm over the month
- Humidity
- 74%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 17.9°C
- 2010-01-01
- Record low 1991-2020
- -6.8°C
- 2004-01-25
- Flight from London
- ≈ 3 h 30 min
- 2174 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How January compares
January is the 12th warmest month of the year in Halkidiki and ranks 114th of 134 destinations we compare for January - see where else is hot in January. Within Greece it is 42nd of 44 (Greece in January). Against London's average high of 7.4°C in January, Halkidiki is 2.7°C warmer by day and 3.5°C warmer at night.
Daytime and night-time in January
The typical January day in Halkidiki peaks at 10.1°C, but that is an average: the warmest 10% of days reach 14.0°C or more. Days over 25°C are rare. Nights average 5.7°C; one night in ten drops to 1.8°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest January day here reached 17.9°C (2010-01-01) and the coldest night -6.8°C (2004-01-25).
Rain in January
Wet (more than 8 rainy days): about 8 days with 1 mm or more, 56 mm in total. Year to year it varies a lot - the wettest January was 2004 with 153 mm, the driest 2007 with 5 mm. Humidity averages 74%.
Sea temperature in January
The sea averages 14.1°C - too cold for most (under 18°c). Depending on the year it ranges from 13.4°C to 15.1°C. For the warmest sea here, come in August (26.7°C).
Sunshine and daylight
Around 4.2 hours of sunshine a day (estimated from cloud cover), 9.5 hours of daylight: the sun rises about 07:48 and sets about 17:24 local time in mid-January. Average cloud cover is 55%.
Is January a good time to visit Halkidiki?
January is not the strongest month here: cool days and frequent rain. The best months for Halkidiki on our scoring are August, July, June; months averaging 25°C or more: Jun, Jul, Aug.
Milder than London, but still winter
Halkidiki is only modestly warmer than home in January: its average daytime high is 2.7°C above London's. That is a useful difference for getting outdoors, but not enough to leave your winter layers behind. January is the region's coldest month, and the mildest days are not a reliable guide to the whole trip. The warmest 10% of days reach 14°C or more, while the coldest 10% of nights drop to 1.8°C or below. Pack a warm jacket, layers and closed shoes, with something extra for evenings. This is better suited to travellers who enjoy being outside in cool conditions than anyone seeking dependable warmth.
Keep outdoor plans flexible
Rain is a meaningful catch, with about 8 rainy days during January. It need not rule out time outdoors, but a rigid schedule would be less useful than deciding what to do as the weather develops. A waterproof outer layer and shoes that cope with wet ground are sensible packing choices. There are about 4.2 hours of sunshine a day within 9.5 hours of daylight, so do not expect long, bright days throughout your stay. Put outdoor time into the brighter part of the day and leave room to change plans when it rains. The balance suits a flexible winter break rather than a holiday built around sitting outside.
A little perspective
Halkidiki through the year
January is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| JanuarySelected | 10.1°C | 5.7°C | 14.1°C | 4.2 | 56 | 8 | 0% |
| February | 11.0°C | 6.3°C | 13.5°C | 4.7 | 52 | 8 | 0% |
| March | 13.2°C | 8.1°C | 13.5°C | 5.8 | 58 | 9 | 0% |
| April | 16.5°C | 11.2°C | 14.6°C | 6.9 | 45 | 7 | 1% |
| May | 21.3°C | 15.8°C | 18.6°C | 8.3 | 49 | 7 | 13% |
| Junebest | 25.9°C | 20.5°C | 23.2°C | 10.7 | 29 | 5 | 58% |
| Julybest | 28.3°C | 23.0°C | 25.9°C | 12.0 | 36 | 5 | 95% |
| Augustbest | 28.6°C | 23.4°C | 26.7°C | 11.3 | 32 | 4 | 94% |
| September | 24.5°C | 19.7°C | 24.5°C | 8.3 | 46 | 6 | 42% |
| October | 20.0°C | 15.5°C | 21.3°C | 5.4 | 56 | 8 | 5% |
| November | 15.4°C | 11.3°C | 18.0°C | 4.0 | 57 | 8 | 0% |
| December | 11.4°C | 7.4°C | 15.5°C | 3.7 | 79 | 9 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in January
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Halkidiki in January FAQs
Plain answers, grounded in the averages.
Is Halkidiki hot in January?
Halkidiki is cool in January: the average daytime high is 10.1°C and nights average 5.7°C. Days over 25°C are rare in January.
Can you swim in the sea in Halkidiki in January?
The sea around Halkidiki averages 14.1°C in January, which is cold for swimming without a wetsuit. Between 1991 and 2020 it ranged from 13°C to 15°C depending on the year.
How much does it rain in Halkidiki in January?
Halkidiki sees about 8 rainy days (1 mm or more) and 56 mm of rain in a typical January. The wettest January between 1991 and 2020 was 2004 (153 mm) and the driest was 2007 (5 mm).
How sunny is Halkidiki in January?
Halkidiki gets around 4.2 hours of sunshine a day in January out of 9.5 hours of daylight (estimated from average cloud cover).
How does Halkidiki compare with the UK in January?
Halkidiki is on average 2.7°C warmer than London by day in January (10.1°C against 7.4°C).
What is the hottest January on record in Halkidiki?
Between 1991 and 2020 the hottest January day in Halkidiki reached 17.9°C on 2010-01-01, and the coldest night dropped to -6.8°C on 2004-01-25.
Is the sea warm enough for swimming in January?
The sea averages 14.1°C, which is cold rather than merely bracing. It is not a comfortable prospect for a typical holiday swim. If swimming is central to your plans, January's sea temperature is a strong reason to choose a different time.
How long is the flight from London?
The flight from London takes about 3 h 30 min, making Halkidiki a short-haul option. The relatively short journey does not bring warm January weather, though, so choose it for a cool break rather than a winter beach trip.
When is a better time to go for warmer holiday weather?
August, July and June are better choices for holiday weather in Halkidiki. January is its coldest month, so moving your trip to those summer months makes more sense if warmth matters more to you than travelling in winter.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Néa Moudhaniá (Nea Moudania). Sea temperature from the nearest 5 km sea cell, 3 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C