Sunny Beach weather in January
January in Sunny Beach: cold, a little rain, with clean air — one of the weakest months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#12 of 12 months in Sunny Beach · #1245 of 1413 destinations to visit in January · comfort 44/100 (tier F)
- Days
- 8°C
- Nights
- 1°C
- Wet days
- 8
- Sun
- 5.9 h
- Humidity
- 77%
- Daylight
- 10 h

Traveller notes on Sunny Beach in January
Notes from nearby Burgas (28 km away)
Sunny Beach doesn't have its own notes for January yet — these are about Burgas, close enough to share the season.
Forum posters describe January and February as Bulgaria's coldest months, cold enough that some villages can become snowed in, with roughly six weeks of genuine winter conditions before things start easing around mid-March. Posters describing winter travel to Bulgaria more broadly call it cold, gray and often described as depressing, though some visitors specifically seek out this stretch for the cold and snow itself. Posters discussing the wider Burgas Province coastal region suggest conditions here run somewhat less severe than Bulgaria's mountainous interior, given the Black Sea's moderating coastal influence, even without much January-specific detail available. Posters generally rate January as cold and quiet for Burgas, genuinely milder than inland Bulgaria but still solidly within the country's harsh winter stretch.
Other months in Sunny Beach
Regulars are direct this counts as a genuine gamble by this point, some years bringing amazing weather while the resort itself is largely closed and dismantled by around the 24th regardless of how nice the actual conditions turn out. Our row backs that mild, genuinely dry read, 20C over 11.7C nights feeling 10C, with rain light at 60.5mm across 6.3 days and humidity at 75 percent. Regulars are consistent chilly mornings and evenings are the norm even on a decent, mid-20s daytime stretch, anyone specifically hoping to swim and catch real sun advised to visit at least a month earlier instead. The sea sits at 21.1C. The record: 8.1 hours of sun, an 18 kph wind and AQI 35.
Regulars describe May here as unpredictable and split by the calendar: mid-May can feel too chilly at night for many visitors, and the last weekend of the month is when it visibly picks up as the main tour operators start their summer flights - still quiet compared with July or August, but the shift is real. Our row matches the caution on temperature, 21.3C over 12.4C with 53.9mm across 10 days, and the sea backs their blunt verdict that the water is too cold for most: 15.9C. Sunny warm days do happen, but early mornings and after dark both want a jacket regardless. The record: humidity 77 percent, 12.1 hours of sun, a 17.1 kph wind and AQI 41.
The frame regulars give is worth having before anything else: this is a very short season, opening in June and finished by mid-September. June itself they describe as warm without being overpowering, mid-twenties with the odd thunderstorm that passes quickly, and evenings cool enough for a sweater at around 15 or 16C - our row says 26.7C by day and 17.7C at night across 56.9mm and 9.1 precipitation days. On the Black Sea they are more cautious than our figures: they put it at 17 to 20C while our monthly average reads 22.8C, so expect the early weeks to be colder than the number. Thirteen hours of sun a day and 15.3 of daylight is the compensation. The record: humidity 77 percent, a 16.1 kph wind and AQI 42.
September here is a resort taking itself apart as the month goes on. Regulars describe mid to high twenties with thunderstorms that clear fast and rain that stays local - our row gives 25.5C and 25.3mm across 4.8 precipitation days - plus chilly early mornings and evenings at 16.8C. What changes is the town: places north and south of the centre start closing, the clubs and water parks shut, and by late September it is a quiet, cheap, laid-back version of itself with bargains in the shops but much less open. Their rule is to end the trip no later than the third week if the activities matter, and to come late if the quiet does. The record: humidity 69 percent, 10.6 hours of sun, a 24.6C sea and AQI 39.
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Sunny Beach climate normals — January
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sunny Beach in January
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Quietschool holidays in 7 of the markets that fill it, one of its worst months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sunny Beach's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherSunny Beach's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Sunny Beach in January
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Closure
The winter shutdown
10 Oct – 30 Apr · usuallyBy the middle of October the loungers are stacked and the strip is boarded up for the winter. Almost nothing stays open; Burgas or Nesebar is where anything still happens. Source ↗
Nearby, and something's on
Within 300 km of Sunny Beach — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sunny Beach?
Sunny Beach in January — FAQ
- Is January a good time to visit Sunny Beach?
- January in Sunny Beach: cold, a little rain, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Sunny Beach on SeasonMap's comfort score (44/100).
- What is the weather like in Sunny Beach in January?
- In January, Sunny Beach averages a daily high of 8.4°C and a low of 1.3°C, with about 59 mm of rain over roughly 7.8 rainy days.
- What is the air quality in Sunny Beach in January?
- Sunny Beach has a mean US Air Quality Index of about 32 in January.
- Does it snow in Sunny Beach in January?
- Sunny Beach sees roughly 7.3 cm of snowfall in January.
Within 300 km: Istanbul's Hamsi season around 1 Nov – 28 Feb, and Bucharest's Epiphany and Saint John's Day on 6–7 Jan.