Mamaia (Constanța) weather in January

January in Mamaia: cold, a little rain, with clean air — one of the weakest months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Mamaia🇷🇴 Romania · Balkans · Beach42
  1. 42Jan
  2. 51Feb
  3. 63Mar
  4. 75Apr
  5. 79May
  6. 87Jun
  7. 90Jul
  8. 95Aug
  9. 92Sep
  10. 72Oct
  11. 55Nov
  12. 45Dec

#12 of 12 months in Mamaia · #1264 of 1413 destinations to visit in January · comfort 42/100 (tier F)

Days
7°C
Nights
0°C
Wet days
6
Sun
5.5 h
Humidity
81%
Daylight
9 h
Mamaia, Romania
Photo: Czapp Árpád · Pexels

Traveller notes on Mamaia in January

Other months in Mamaia

Romania's forum describes February as genuinely cold nationwide, typically 0-5C by day with a real chance of snow, and one Bucharest visitor reported nights as low as -14C during a cold snap. Mamaia's coastal position moderates things somewhat compared to inland cities, but posters were clear the Black Sea coast is fundamentally a summer destination - most of what makes Mamaia appealing (the beach, the resort strip) is dormant this time of year, so it's really a stopover rather than a winter destination in its own right.
BlackSeaCoastRegular · February · 1 month ago · Read more on Tripadvisor ↗
Forum posters name the July 15 to August 25 window as the best time to visit Mamaia, when the Black Sea stays warm and comparatively shallow near shore. Posters describe typical conditions as very warm, above 30C in Romania's lower-elevation coastal areas, with one visitor even in late September reporting a fabulous 32C with clear skies and a gentle breeze - suggesting August itself should run at least as warm. Posters consistently flag real crowding as the trade-off for that peak-season heat and sunshine, describing Mamaia as one of Romania's more traditional resorts and especially packed during July and August. Posters generally rate August as ideal for a beach vacation here, crowds notwithstanding.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Mamaia's card on the map.

Mamaia climate normals — January

Daytime high7°C / 44°F🧥 cold
Nighttime low0°C / 32°F
Feels like (high)3°C / 37°F
Sea temperature8°C / 47°F🥶 cold sea
Rainfall35 mm / 1.4 in🌦 some rain
Rainy days6 days
Humidity81%💦 very humid
Dew point0°C / 31°F
Sunshine5.5 h/day
Daylight9.3 h
Wind20 km/h / 13 mph
Snowfall11.8 cm / 4.6 in
Air quality (US AQI)32🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Mamaia 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)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Mamaia'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 weatherMamaia's weather peaks July–September, best around August.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Mamaia in January

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Resort shutdown

    20 Sep – 20 May · usuallyOff-season shutdownClosures

    Mamaia is a purpose-built summer strip and it closes almost completely: hotels shuttered, the cable car stopped, the club terraces stacked and wrapped. Constanța next door stays a working city, which is where you go instead.

What's on around the world in January →

Nearby, and something's on

Within 300 km of Mamaia — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Mamaia?

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Mamaia in January — FAQ

Is January a good time to visit Mamaia?
January in Mamaia: cold, a little rain, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Mamaia on SeasonMap's comfort score (42/100).
What is the weather like in Mamaia in January?
In January, Mamaia averages a daily high of 6.6°C and a low of 0.2°C, with about 35.3 mm of rain over roughly 5.7 rainy days.
What is the air quality in Mamaia in January?
Mamaia has a mean US Air Quality Index of about 32 in January.
Does it snow in Mamaia in January?
Mamaia sees roughly 11.8 cm of snowfall in January.

Within 300 km: Brașov's Christmas market around 27 Nov – 3 Jan, and Sunny Beach's The winter shutdown around 10 Oct – 30 Apr.