Your January weather guide
CoolWeather in Side in January
Side in January suits a cool-weather break, not a holiday built around warmth or swimming. Average daytime highs are about 9°C, nights fall to around 3°C, and there are roughly 14 rainy days. For a UK traveller, the catch is that the daytime temperature is only slightly higher than London's. Go if you are happy to wrap up, keep outdoor plans flexible and treat any sunshine as a bonus rather than the basis of the trip.
Long-term climate averages for Fatsa, not a forecast · 1991-2020
Side, month by month
Your snapshot
At a glance
The useful details for Fatsa.
- Average daytime high
- 8.8°C
- 9 in 10 days stay below 15°C
- Average night-time low
- 2.6°C
- coldest 10% of nights: -3°C or lower
- Compared with London
- +1.4°C
- London averages 7.4°C in January
- Sea temperature
- 9.5°C
- year to year: 8°C to 11°C
- Sunshine per day (est.)
- 3.0h
- 32% of 9.4 h of daylight
- Rainy days (1 mm+)
- 14
- 111 mm over the month
- Humidity
- 76%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 18.3°C
- 2010-01-02
- Record low 1991-2020
- -10.6°C
- 2010-01-27
- Flight from London
- ≈ 4 h 36 min
- 3076 km, mid-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 Side. Within Turkey it is 16th of 18 (Turkey in January). Against London's average high of 7.4°C in January, Side is 1.4°C warmer by day and 0.4°C warmer at night.
Daytime and night-time in January
The typical January day in Side peaks at 8.8°C, but that is an average: the warmest 10% of days reach 14.7°C or more. Days over 25°C are rare. Nights average 2.6°C; one night in ten drops to -3.1°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 18.3°C (2010-01-02) and the coldest night -10.6°C (2010-01-27).
Rain in January
Wet (more than 8 rainy days): about 14 days with 1 mm or more, 111 mm in total. Year to year it varies a lot - the wettest January was 2016 with 176 mm, the driest 2014 with 45 mm. Humidity averages 76%.
Sea temperature in January
The sea averages 9.5°C - too cold for most (under 18°c). Depending on the year it ranges from 8.4°C to 10.6°C. For the warmest sea here, come in August (25.5°C).
Sunshine and daylight
Around 3.0 hours of sunshine a day (estimated from cloud cover), 9.4 hours of daylight: the sun rises about 07:53 and sets about 17:25 local time in mid-January. Average cloud cover is 68%.
Is January a good time to visit Side?
January is not the strongest month here: cool days and frequent rain. The best months for Side on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug.
Expect winter clothing, not reliable warmth
January is Side's coldest month, so pack for winter rather than assuming a Turkish resort will feel warm. A warm coat, layers and closed shoes are sensible for daytime outings, with extra warmth needed after dark. The milder days can reach around 15°C or more, but that is not the usual experience. At the colder end, nights can drop to about -3°C or below, so light evening clothing is a poor bet. Plan outdoor time around the warmer part of the day rather than avoiding midday heat. This month suits travellers comfortable with chilly conditions; it is a weak choice if warmth is the main reason for leaving the UK.
Keep plans flexible and leave sea swimming off the agenda
Rain is a meaningful part of the January picture, not something to dismiss as an occasional interruption. Pack a waterproof outer layer and shoes that can cope with wet conditions, and leave room to move outdoor plans when the weather turns. There are about 3 hours of sunshine within 9.4 hours of daylight, so do not expect bright weather throughout the day. Make use of dry, brighter spells without relying on them lasting. The sea averages 9.5°C, which is cold rather than merely bracing, making this a poor month for a conventional swimming holiday. If your ideal break depends on sitting outside for long stretches or getting into the sea, January's weather is likely to work against you.
A little perspective
Side 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 | 8.8°C | 2.6°C | 9.5°C | 3.0 | 111 | 14 | 0% |
| February | 9.0°C | 2.2°C | 8.1°C | 3.5 | 89 | 13 | 0% |
| March | 11.6°C | 4.5°C | 8.1°C | 3.9 | 114 | 16 | 1% |
| April | 15.2°C | 7.8°C | 10.1°C | 5.2 | 106 | 15 | 2% |
| May | 19.1°C | 12.2°C | 14.9°C | 6.3 | 104 | 15 | 5% |
| Junebest | 22.7°C | 16.4°C | 20.9°C | 7.9 | 93 | 13 | 20% |
| Julybest | 25.0°C | 19.3°C | 24.4°C | 8.5 | 76 | 12 | 49% |
| Augustbest | 25.5°C | 20.0°C | 25.5°C | 7.5 | 80 | 13 | 60% |
| September | 22.7°C | 16.8°C | 23.4°C | 5.9 | 119 | 14 | 23% |
| October | 19.5°C | 13.3°C | 19.6°C | 4.3 | 142 | 15 | 10% |
| November | 15.2°C | 8.4°C | 15.6°C | 4.0 | 113 | 11 | 1% |
| December | 11.0°C | 4.9°C | 12.1°C | 3.1 | 108 | 14 | 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.
Croatia · 9°C by day · sea 11°C
Pula
Italy · 9°C by day
Florence
Italy · 7°C by day · sea 10°C
Lido di Jesolo
Italy · 7°C by day · sea 9°C
Venice
Spain · 10°C by day
Madrid
A little more detail
Side in January FAQs
Plain answers, grounded in the averages.
Is Side hot in January?
Side is cool in January: the average daytime high is 8.8°C and nights average 2.6°C. Days over 25°C are rare in January.
Can you swim in the sea in Side in January?
The sea around Side averages 9.5°C in January, which is cold for swimming without a wetsuit. Between 1991 and 2020 it ranged from 8°C to 11°C depending on the year.
How much does it rain in Side in January?
Side sees about 14 rainy days (1 mm or more) and 111 mm of rain in a typical January. The wettest January between 1991 and 2020 was 2016 (176 mm) and the driest was 2014 (45 mm).
How sunny is Side in January?
Side gets around 3.0 hours of sunshine a day in January out of 9.4 hours of daylight (estimated from average cloud cover).
How does Side compare with the UK in January?
Side is on average 1.4°C warmer than London by day in January (8.8°C against 7.4°C).
What is the hottest January on record in Side?
Between 1991 and 2020 the hottest January day in Side reached 18.3°C on 2010-01-02, and the coldest night dropped to -10.6°C on 2010-01-27.
Is Side much warmer than London in January?
No. Side's average daytime high is 8.8°C, compared with London's 7.4°C - a difference of just 1.4°C. That is a small temperature advantage, not a switch to warm holiday weather, so you should still plan for winter conditions.
Can I swim in the sea in January?
The sea averages 9.5°C, with a year-to-year range of 8°C to 11°C. That is firmly cold, so January does not suit a holiday centred on comfortable sea swimming. Do not make swimming the reason to go.
Which months are better for a warm-weather holiday in Side?
July, August and June are the better choices for a holiday focused on warmth. January is Side's coldest month, so changing the timing makes more sense than hoping for an unusually mild spell if warm weather is your priority.
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 Fatsa. Sea temperature from the nearest 5 km sea cell, 2.1 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