January Weather in Constanta, Romania

Last updated: August 27, 2025

January in Constanta, Romania is characterized by a diverse range of temperatures, featuring a maximum of 14°C (57°F) and dipping to a minimum of -10°C (14°F), resulting in a striking average of 3°C (38°F). The month sees about 50 mm (2.0 in) of precipitation spread over 7 days, highlighting a relatively wet winter season. Coupled with a high humidity level of 87%, the weather can feel quite chillier, prompting residents and visitors alike to bundle up and prepare for the brisk maritime climate.

January Temperature in Constanta

In Constanta, Romania, January presents a chill that serves as a precursor to the gradually warming months ahead. With a minimum temperature plummeting to -10°C (14°F), the city experiences its coldest days of the year, though the average hovers around 3°C (38°F), leading to some mild respite during the afternoons. The maximum temperature can reach a surprisingly comfortable 14°C (57°F), hinting at the early stirrings of spring. As winter progresses, trends indicate a gradual ascent in temperatures, paving the way for February and March, where highs slowly transition towards more temperate conditions. Overall, January acts as a wintry backdrop, setting the stage for the inviting warmth that follows in the upcoming months.

January Weather in Constanta: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Constanta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Constanta, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec384043506171757669605144
Data source: Temperature data for Constanta generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Constanta

January in Constanta, Romania, brings an average precipitation of 50 mm (2.0 in) over approximately 7 days, marking it as a relatively wet start to the year. This period typically showcases the end of winter's grip, while rainfall begins to pave the way for the forthcoming spring. Notably, it sets a trend where precipitation usually fluctuates throughout the months, peaking in winter and summer while calming down considerably in late summer and autumn. As January transitions into February, the precipitation slightly decreases to 42 mm, but the consistent number of rainy days at 7 suggests that the month retains a steady rhythm of moisture. This wetness plays a vital role in nourishing the landscape, thus shaping the environment and lifestyle in the coastal city.

January Precipitation Trends in Constanta

The chart displays monthly precipitation patterns in Constanta, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Constanta, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec504244283067501121505468
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Constanta

In Constanta, Romania, January boasts a notably high humidity level of 87%, setting the stage for the typically moist winter months. As the seasons progress into February, humidity sees a slight decline to 83%, followed by a further drop to 80% in March, hinting at the gradual shift towards spring. April and May continue this trend, with humidity levels decreasing to 76% and 73% respectively, making the air feel drier. By June and July, the summer months showcase the lowest humidity, plummeting to 68% and 65%. However, as autumn approaches, a subtle rise occurs; humidity levels bounce back to 77% in October, with November reaching 85%, and December trailing closely behind at 86%. This cyclical pattern illustrates a distinct seasonal variation, with winter and late autumn maintaining higher humidity levels compared to the summer's refreshing dryness.

January Average Humidity in Constanta

This chart illustrates the average monthly humidity levels in Constanta, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Constanta is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%76%73%68%65%53%61%77%85%86%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Constanta

In January, Constanta experiences a UV Index of 2, categorizing exposure as low, which allows for a burn time of approximately 45 minutes without serious risk. As the months progress into February and March, the UV Index gradually increases to 3 and 5 respectively, indicating a moderate exposure level and reducing safe sun exposure to 30 minutes. By April, the sun intensifies significantly, reaching a high UV Index of 7 and further shortening burn time to 25 minutes. This escalating trend continues into the summer months, where both June and July peak at a striking 9 on the UV scale, marking very high risk, which necessitates careful sun protection with only 15 minutes of safe exposure. As summer fades into September and October, there is a gradual decline in UV levels back to high and then to moderate, settling at 7 and 5 respectively, while burn times increase again to 25 and 30 minutes. The year closes with low exposure levels in December and January, where the UV Index tapers back to 2, allowing for longer sun-safe intervals. For a detailed examination of the UV index throughout the year, visit Constanta UV Index.

Maximum UV Index Levels in Constanta for January

The chart shows the monthly maximum UV Index (UVI) for Constanta in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Constanta typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Constanta January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Constanta

January in Constanta, Romania, brings an average of 158 hours of sunshine, marking the start of the year with a gentle introduction to brighter days. As winter gives way to early spring, the sunlight steadily increases, with February experiencing a notable uptick to 229 hours. The trend continues through March, as days grow longer with 301 hours, paving the way for the radiant months ahead. By the time April arrives, locals enjoy a delightful 353 hours of sunshine, leading into May's splendid 408 hours. As the summer months approach, the sun shines at its peak with July boasting an impressive 434 hours. Despite a gradual decline in August, with 407 hours, sunshine remains abundant until the autumn months, showcasing Constanta’s vibrant seasonal transitions. This journey from January’s modest light to the summer's brilliance illustrates the enchanting evolution of sunlight throughout the year, inviting visitors to enjoy its unique charm at every turn.

Monthly Sunshine Duration in Constanta: January Highlighted

The January sunshine duration represents the total number of hours Constanta experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec158h229h301h353h408h417h434h407h343h292h214h194h
Data source: Constanta January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Constanta During January

In January, the likelihood of sunny weather in Constanta, Romania, sits at a modest 26%, marking the start of the year with relatively low chances of sunshine. As winter progresses into February, the sunshine probability increases to 35%, hinting at a gradual transition towards brighter days. The trend continues upward in March (42%) and April (41%), indicating that spring is right around the corner. Interestingly, while May and June hold steady at 44%, the sunshine peaks strikingly during the summer months, with July and August boasting impressive chances of 77% and 75% respectively. As autumn approaches, the chances of sun begin to drop again, landing at 60% in September and gradually declining through the last months of the year. This seasonal pattern highlights a clear shift from the chill of winter to the vibrant warmth of summer, making sunny days increasingly common as the months roll on.

Percentage of Sunny Days in January in Constanta

The chart illustrates the percentage of sunny days in Constanta throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Constanta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%35%42%41%44%45%77%75%60%33%32%26%
Data source: Constanta January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Constanta in January

In Constanta, Romania, day length gradually increases through the winter months, starting at 9 hours of daylight in January. This progression ushers in a sense of anticipation for the longer days ahead, as February sees daylight extend to 10 hours. By the arrival of spring, daylight reaches 11 hours in March and surges to 13 hours in April, inviting outdoor activities and blooming flowers. May and June offer peak brightness with 14 and 15 hours of daylight, respectively, providing abundant opportunities for sun-soaked adventures. As summer fades, daylight starts to wane, dropping to 13 hours in August and decreasing steadily to 8 hours by December. This rhythmic dance of daylight reflects the changing seasons, enriching the experience of life in Constanta throughout the year.

Average Daylight Hours in Constanta for January

The chart illustrates the variation in daylight duration in Constanta throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 16m10h 27m11h 56m13h 28m14h 47m15h 27m15h 6m13h 56m12h 28m10h 56m9h 36m8h 54m
Data source: Constanta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Constanta

In January, Constanta experiences an invigorating start to the year, with an average wind speed of 6.3 m/s (14 mph), marking it as one of the windiest months. As winter ebbs into February, the winds begin to mellow slightly, dropping to 5.1 m/s (12 mph). This gentle shift continues into March where the average increases modestly to 5.5 m/s (12 mph), hinting at the energetic transition towards spring. However, by April, the winds further calm down to 4.2 m/s (9 mph), reflecting a growing warmth as the season progresses. This trend of moderated winds continues into late spring and summer, with average speeds hovering between 4.3 m/s to 4.5 m/s (10 mph) until August. As autumn arrives, the winds pick up again, culminating in December with a brisk 6.7 m/s (15 mph), creating a refreshing contrast to the milder summer breezes. Overall, January clearly stands out as a month of brisk winds, setting the stage for a dynamic seasonal transition in Constanta.

Average January Wind Speed in Constanta

The chart displays monthly wind speed patterns in Constanta, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.3 m/s5.15.54.24.44.54.54.35.35.95.16.7
Data source: Constanta January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Constanta Compares to Other Months

Weather in Constanta varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Constanta, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, the weather tends to be colder, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F) and an average of 3°C (38°F). The month sees approximately 50 mm (2.0 in) of precipitation over 7 days and maintains a high humidity level of 87%. In contrast, February brings slightly milder conditions, with temperatures ranging from -6°C (22°F) to 15°C (59°F) and an average temperature of 5°C (41°F). Precipitation decreases to about 42 mm (1.7 in) over the same number of days, and humidity levels are slightly lower at 83%. For more details on February weather, you can visit Constanta weather in February.

In comparing the weather between January and March, we see a transition toward milder conditions. January experiences a wider range of temperatures, with a minimum of -10°C (14°F) and an average of 3°C (38°F), but is marked by higher humidity at 87% and notable precipitation totaling 50 mm (2.0 in) over 7 days. In contrast, March offers slightly warmer temperatures, with a minimum of -9°C (17°F) and an average of 6°C (43°F), alongside a slightly lower humidity of 80%. While precipitation in March is slightly less at 44 mm (1.7 in) over 8 days, the weather becomes increasingly pleasant, signaling the approaching spring. For a more detailed look at March weather, you can refer to Constanta weather in March.

January and April display significant differences in weather patterns. In January, temperatures can drop as low as -10°C (14°F), with an average of 3°C (38°F) and a maximum of 14°C (57°F). The month is characterized by high humidity at 87% and notable precipitation of 50 mm (2.0 in) over about 7 days. In contrast, April sees a marked warming trend, with minimum temperatures around 3°C (38°F), an average of 10°C (50°F), and a maximum reaching 20°C (69°F). The precipitation in April is lighter at 28 mm (1.1 in) and occurs over 6 days, and the humidity drops to a more comfortable 76%. For more specific information about the weather trends in Constanta, you can refer to Constanta weather in April.

In January, the weather is notably colder, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F) and an average of 3°C (38°F). The month also experiences higher humidity levels at 87% and receives approximately 50 mm (2.0 in) of precipitation over 7 days. In contrast, May brings much milder conditions, boasting temperatures from a minimum of 9°C (49°F) to a comfortable maximum of 25°C (77°F), with an average of 16°C (61°F). Precipitation decreases to about 30 mm (1.2 in) over the same 7 days, and humidity drops to a more pleasant 73%. For more details on May's climate, check out Constanta weather in May.

January and June present strikingly different weather patterns. In January, temperatures can plunge to a minimum of -10°C (14°F) and hover around an average of 3°C (38°F), occasionally reaching a maximum of 14°C (57°F). The month is characterized by high humidity at 87% and receives about 50 mm (2.0 in) of precipitation over 7 days. In contrast, June enjoys a much milder climate, with temperatures ranging from a minimum of 12°C (54°F) to a warm average of 21°C (71°F), peaking at 29°C (84°F). This month sees increased precipitation at 67 mm (2.6 in) over 10 days but notably lower humidity at 68%. For a detailed look at the specific weather conditions, you can refer to Constanta weather in June.

In January, the weather tends to be quite cold, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F), and an average temperature of around 3°C (38°F). The month sees about 50 mm (2.0 in) of precipitation over approximately 7 days, with a high humidity level of 87%. In contrast, July brings much warmer conditions, with temperatures varying from a minimum of 17°C (62°F) to a maximum of 31°C (87°F) and an average of 24°C (75°F). While July also experiences 50 mm (2.0 in) of precipitation, it occurs over just 6 days and is accompanied by significantly lower humidity at 65%. For more details, check out Constanta weather in July.

When comparing the weather conditions in January and August, a stark contrast emerges. January experiences much colder temperatures, with a minimum of -10°C (14°F) and an average of 3°C (38°F), peaking at just 14°C (57°F). The month is characterized by high humidity at 87% and a significant amount of precipitation, totaling 50 mm (2.0 in) over 7 days. In stark contrast, August offers a warm climate with a minimum temperature of 17°C (64°F) and an average of 25°C (77°F), reaching a maximum of 30°C (87°F). This summer month sees only 11 mm (0.4 in) of rainfall over just 3 days and significantly lower humidity at 53%. For more detailed insights, check out Constanta weather in August.

January and September present stark contrasts in weather. In January, temperatures plunge, with lows reaching -10°C (14°F) and averages around 3°C (38°F). The month also sees more precipitation, totaling 50 mm (2.0 in) over about 7 days, coupled with high humidity at 87%. In contrast, September enjoys milder temperatures, with minimums around 11°C (52°F) and averages jumping to 21°C (70°F), peaking at 28°C (83°F). This month is significantly drier, with only 21 mm (0.8 in) of rain over just 3 days, and humidity levels dropping to 61%. For more details on September weather, visit Constanta weather in September.

In January, temperatures in Constanta can plunge to a minimum of -10°C (14°F), with an average of around 3°C (38°F) and a maximum of 14°C (57°F). This winter month experiences high humidity at 87%, contributing to a chilly atmosphere, and sees about 50 mm (2.0 in) of precipitation over approximately 7 days. In contrast, October offers a much milder climate with minimum temperatures around 7°C (45°F), averaging 16°C (60°F) and peaking at 24°C (76°F). The humidity in October is lower at 77%, and rainfall decreases to about 50 mm (2.0 in) spread across just 5 days, making it a more pleasant month overall. For more details on the October weather, you can read more Constanta weather in October.

In comparing the weather between January and November, January presents a notably colder climate, with average temperatures ranging from -10°C (14°F) to 14°C (57°F), while November features milder conditions with an average temperature between -1°C (31°F) and 21°C (69°F). Precipitation is somewhat comparable, with January receiving around 50 mm (2.0 in) over approximately 7 days, and November slightly higher at 54 mm (2.1 in) across 9 days. Humidity levels are quite similar, with January at 87% and November slightly lower at 85%. For more details on the specific weather patterns in November, you can visit Constanta weather in November.

In January, the weather in Constanta tends to be cooler compared to December, with average temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (57°F), while December sees milder averages from -5°C (24°F) to 16°C (61°F). Additionally, January experiences slightly less precipitation, totaling 50 mm (2.0 in) over 7 days, compared to December’s 68 mm (2.7 in) spread over 12 days. Both months exhibit high humidity, with January at 87% and December at 86%, creating a generally damp atmosphere. For a more detailed look at the December weather in Constanta, you can visit Constanta weather in December.

Compare Constanta's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Constanta

In January, Constanta's weather stands in stark contrast to the warmer months, marked by colder temperatures and increased humidity. With an average chill that hovers around 3°C (38°F) and the potential for frost reaching as low as -10°C (14°F), the atmosphere is invigorating yet crisp. Precipitation, while moderate with about 50 mm spread across 7 days, adds to the wintry ambiance, making it one of the dampest months of the year. This combination of frigid air and occasional rainfall contributes to the unique character of Constanta's January weather compared to the more temperate or warm conditions of other seasons. For an in-depth look at how January fits into the broader climate patterns, explore more at Constanta Climate.