January Weather in Strunjan, Slovenia

Last updated: August 27, 2025

In Strunjan, Slovenia, January presents a chilly yet captivating atmosphere, where temperatures range from a brisk -3°C (27°F) at night to a maximum of 13°C (56°F) during the day, culminating in an average of 7°C (46°F). This month also welcomes ample moisture, with 58 mm (2.3 in) of precipitation spread across 7 days, resulting in a high humidity level of 88%. The combination of cool weather and frequent rainfall creates a unique winter landscape, making Strunjan a serene destination for those who enjoy the tranquil beauty of winter.

January Temperature in Strunjan

In Strunjan, Slovenia, January ushers in the winter season with temperatures that reflect its chilly character. The average temperature sits at a brisk 7°C (46°F), but nightfall can take the mercury down to a sharp -3°C (27°F), while daytime highs reach a comfortable 13°C (56°F). This transitional month hints at the gradual warming that follows, as February mirrors January's extremes with similar temperature ranges. Observing the trend into March, temperatures start to ascend, indicating spring's imminent approach, with averages rising to 10°C (50°F). Strunjan’s January climate beautifully encapsulates the essence of winter, serving as a prelude to the milder months ahead, all while managing to maintain an inviting charm amidst the cold.

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

The chart illustrates January temperature patterns in Strunjan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Strunjan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec454749566373777871635649
Data source: Temperature data for Strunjan 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 Strunjan

In January, Strunjan experiences a relatively modest precipitation level of 58 mm (2.3 in), spread across just 7 days of the month. This sets the stage for the wetter months ahead, as February sees a notable increase with 106 mm (4.2 in) over 11 days. The transition into spring months reveals a pattern of fluctuating rain, with March bringing similar totals back down to 57 mm (2.3 in), again over 7 days. As the year progresses, the precipitation peaks dramatically in September and November, reaching 171 mm (6.7 in) and 183 mm (7.2 in), respectively, indicating that Strunjan's climate is significantly influenced by autumnal rains. Overall, January marks the beginning of a cycle where mild winter conditions gradually give way to the more dynamic and rainier months that follow.

January Precipitation Trends in Strunjan

The chart displays monthly precipitation patterns in Strunjan, 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 Strunjan, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec581065786105684958171100183150
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Strunjan

January in Strunjan, Slovenia, typically brings a high humidity level of 88%, setting a moist tone for the winter months. As the year progresses into February, the air feels slightly drier at 82%, but the humidity remains notably high compared to later months. From March through May, humidity gradually decreases, stabilizing around 70% in the spring, which makes for a refreshing transition into warmer weather. The summer months see a further drop in humidity, with July reaching its lowest point at 63%, providing a comfortable climate for outdoor activities. However, as autumn arrives, humidity levels rise again, peaking in November at 89%, before settling at 88% in December. This cyclical pattern highlights Strunjan's shift from the moisture-laden chill of winter to the crisp, drier air of summer, only to return to lush dampness by the year's end.

January Average Humidity in Strunjan

This chart illustrates the average monthly humidity levels in Strunjan, 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 Strunjan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Strunjan

In January, Strunjan, Slovenia, experiences a low UV Index of 2, allowing for a generous burn time of 45 minutes before precautions are needed. As winter progresses into February, the index increases to 3, shifting to a moderate exposure category with a reduced burn time of 30 minutes. This upward trend continues into March, where the UV Index reaches 5, marking a transitional phase towards more intense sun exposure. By April, the index climbs to 6, indicating high exposure and a shorter burn time of 25 minutes. The sun's strength peaks in the summer months, particularly in May and June, with a staggering UV Index of 9 and a mere 15-minute burn time. This trend remains consistent into July and August, before gradually decreasing through the fall months back to moderate levels by October and November. As December rolls in, Strunjan returns to a low UV Index of 2 with a longer burn time, highlighting the annual cycle of sun exposure. For further details, check the full analysis at Strunjan UV Index.

Maximum UV Index Levels in Strunjan for January

The chart shows the monthly maximum UV Index (UVI) for Strunjan 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 Strunjan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Strunjan 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 Strunjan

In January, Strunjan greets the year with 182 hours of sunshine, a modest start that sets the stage for a remarkable upward trend in daylight as winter gives way to spring. By February, the sun shines for 223 hours, hinting at the promise of brighter days ahead. As March arrives, sunshine soars to 315 hours, invigorating the landscape and heralding the arrival of spring. The increasing daylight continues its ascent into April with 344 hours, reaching a delightful peak in June at 417 hours as summer embraces Strunjan. This radiant trend slightly dips in August, with 397 hours, but still offers plenty of warmth. As the days shorten toward the year’s end, September through December sees a gradual decline, with 229 hours in November and 207 hours in December, yet the lingering sunshine throughout the year showcases Strunjan's charm, making it a captivating destination no matter the season.

Monthly Sunshine Duration in Strunjan: January Highlighted

The January sunshine duration represents the total number of hours Strunjan 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h223h315h344h372h417h430h397h326h293h229h207h
Data source: Strunjan January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Strunjan During January

In Strunjan, Slovenia, the likelihood of sunny weather in January is relatively low at only 31%, making it one of the cloudier months of the year. This trend continues into December and November, where sunny days are similarly scarce. However, as winter gives way to spring, the probabilities of sunshine begin to rise markedly—February sees an increase to 42%, and by March, the chances leap to 65%. This progressive transition highlights a shift toward more favorable weather, setting the stage for brighter days ahead as the seasons change. Thus, while January may not be the most enticing month for sun-seekers, hope is on the horizon as the days grow longer and sunnier starting in March.

Percentage of Sunny Days in January in Strunjan

The chart illustrates the percentage of sunny days in Strunjan 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 Strunjan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%42%65%46%43%56%51%62%59%50%35%36%
Data source: Strunjan January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Strunjan in January

In Strunjan, Slovenia, the transition from January marks the beginning of a gradual increase in daylight, starting with about 9 hours of sunlight. As the months progress into spring, this duration climbs steadily, reaching 11 hours by March and blossoming to 13 hours in April. May and June bring the peak daylight, with 14 to 15 hours that illuminate the vibrant landscapes. However, as summer wanes into autumn, a slow decline follows, and by November, daylight dwindles back to 9 hours. The cycle continues through December, where just 8 hours of light leave a subtle reminder of the winter’s embrace. This rhythmic ebb and flow of daylight highlights the enchanting seasonal changes that Strunjan experiences each year.

Average Daylight Hours in Strunjan for January

The chart illustrates the variation in daylight duration in Strunjan throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 9m10h 23m11h 56m13h 32m14h 54m15h 35m15h 13m14h 1m12h 29m10h 53m9h 29m8h 45m
Data source: Strunjan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Strunjan

In January, Strunjan experiences an average wind speed of 4.3 m/s (10 mph), setting the tone for the colder months ahead. As winter transitions into spring, the winds gradually soften, with February and March showing slight decreases to 3.6 m/s (8 mph) and 3.5 m/s (8 mph), respectively. By April, the winds pick up slightly to 4.1 m/s (9 mph), hinting at the arrival of a more dynamic weather pattern as the seasons shift. In May, the average speeds rise again to 4.5 m/s (10 mph), creating a lively atmosphere as summer approaches. However, the summer months bring a gentle lull, with June through September recording lower averages, hovering around 3.1–3.9 m/s (7–9 mph). This trend reverses in October and November, with winds intensifying to 5.0 m/s (11 mph) and 5.2 m/s (12 mph), respectively, as autumn asserts its presence. By December, the winds again soften to 3.3 m/s (7 mph), wrapping up the year with a calm, crisp finale. Overall, January marks the beginning of a compelling wind journey in Strunjan, where fluctuating speeds reflect the changing seasons and the unique charm of this coastal region.

Average January Wind Speed in Strunjan

The chart displays monthly wind speed patterns in Strunjan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.3 m/s3.63.54.14.53.13.43.93.45.05.23.3
Data source: Strunjan January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Strunjan Compares to Other Months

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

In January, temperatures generally range from a minimum of -3°C (27°F) to an average of 7°C (46°F), peaking at a maximum of 13°C (56°F). The month sees around 58 mm (2.3 in) of precipitation over approximately 7 days, with humidity levels averaging a high 88%. In contrast, February experiences a slight increase in the average temperature to 8°C (47°F), while the minimum and maximum temperatures remain unchanged at -3°C (27°F) and 13°C (56°F) respectively. However, February is wetter, with total precipitation rising to 106 mm (4.2 in) over 11 days, and humidity levels decreasing to 82%. For a more detailed look at the weather in February, you can visit Strunjan weather in February.

In January, the weather is quite chilly, with average temperatures hovering around 7°C (46°F) and reaching a maximum of 13°C (56°F). The month experiences significant humidity at 88%, alongside a similar amount of precipitation as March, totaling 58 mm (2.3 in) over 7 days. In contrast, March brings a slight warming trend, with average temperatures rising to 10°C (50°F) and highs reaching up to 16°C (62°F). While precipitation remains comparable at 57 mm (2.3 in) over the same number of days, humidity drops to a more comfortable 73%. For details on March weather, you can visit Strunjan weather in March.

In January, the weather is quite cold, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 13°C (56°F), and an average temperature of 7°C (46°F). The month sees a fair amount of precipitation at 58 mm (2.3 in) over approximately 7 days, accompanied by high humidity levels at 88%.

In contrast, April brings a noticeable shift towards milder temperatures, with a minimum of 5°C (42°F), an average of 13°C (56°F), and a maximum of 20°C (68°F). While it experiences slightly more precipitation at 86 mm (3.4 in) over 8 days, the humidity drops to a more comfortable 73%. This transition reflects the move from winter's chill to the early warmth of spring. For more detailed information on April weather, you can check Strunjan weather in April.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (27°F) and an average of 7°C (46°F) to a maximum of 13°C (56°F). It experiences significant humidity at 88% and receives about 58 mm (2.3 in) of precipitation over approximately 7 days. In contrast, May brings much warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to an average of 17°C (64°F) and a maximum of 24°C (76°F). Although May sees more rainfall, with around 105 mm (4.2 in) over 13 days, the humidity drops to a more comfortable 70%. For more detailed information, you can check Strunjan weather in May.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 13°C (56°F). The month experiences substantial humidity at 88% and a moderate amount of precipitation totaling 58 mm (2.3 inches) over about 7 days. In contrast, June brings significantly warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F), and an average temperature of 23°C (73°F). Although June has slightly higher precipitation at 68 mm (2.7 inches), it only occurs over 5 days, along with a drop in humidity to 69%. For a closer look at the June climate, you can explore Strunjan weather in June.

January and July offer stark contrasts in weather. In January, temperatures range from a chilly -3°C (27°F) to a mild 13°C (56°F), with an average of 7°C (46°F) and high humidity at 88%. Rainfall is moderate, totaling 58 mm (2.3 in) over about 7 days. In contrast, July brings much warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 29°C (85°F), averaging 25°C (77°F). The humidity drops to a comfortable 63%, and the precipitation is lighter, amounting to 49 mm (1.9 in) over just 6 days. For more detailed information, you can check out Strunjan weather in July.

January and August present strikingly contrasting weather conditions. In January, temperatures are considerably colder, with a minimum of -3°C (27°F) and an average of 7°C (46°F), while August enjoys much milder temperatures, ranging from a minimum of 17°C (63°F) to a warm average of 26°C (78°F). Both months experience similar levels of precipitation, around 58 mm (2.3 in), but January sees rainfall over more days (7 days) compared to just 6 days in August. Furthermore, the humidity is notably higher in January at 88%, while August boasts a more comfortable 51%. For more detailed information on August weather, you can visit Strunjan weather in August.

January and September present starkly different weather experiences. In January, temperatures can dip as low as -3°C (27°F) with an average of 7°C (46°F) and highs reaching 13°C (56°F). The month is characterized by high humidity at 88% and moderate precipitation of 58 mm (2.3 in) over about 7 days. In contrast, September offers much milder conditions, with minimum temperatures around 14°C (57°F), an average of 22°C (71°F), and a maximum of 28°C (82°F). While this month sees higher precipitation at 171 mm (6.7 in) over approximately 10 days, the humidity is significantly lower at 64%, resulting in a more comfortable atmosphere. For more detailed information, you can check Strunjan weather in September.

In January, the weather tends to be quite chilly, with minimum temperatures dropping to -3°C (27°F) and average temperatures hovering around 7°C (46°F). This month experiences about 58 mm (2.3 in) of precipitation over approximately 7 days, accompanied by high humidity levels of 88%. In contrast, October brings a significant warming trend, with minimum temperatures around 11°C (52°F) and average temperatures reaching about 17°C (64°F). Rainfall increases to 100 mm (4.0 in) over 10 days, yet humidity remains relatively lower at 83%. For more detailed insights into the October weather, you can check Strunjan weather in October.

In January, temperatures are noticeably lower, ranging from a minimum of -3°C (27°F) to a maximum of 13°C (56°F), with an average of 7°C (46°F). The month experiences a milder amount of precipitation at 58 mm (2.3 in) over just 7 days, accompanied by high humidity levels of 88%. In contrast, November sees significantly warmer temperatures, with a minimum of 6°C (42°F), an average of 13°C (56°F), and a maximum of 19°C (67°F). However, it is also much wetter, with 183 mm (7.2 in) of rainfall spread across 13 days and slightly higher humidity at 89%. For a more detailed look at November weather, visit Strunjan weather in November.

In comparing the weather between January and December, January tends to be colder, with minimum temperatures dipping as low as -3°C (27°F), whereas December's temperatures remain milder, starting at a minimum of 4°C (39°F). The average temperatures reflect this difference, with January averaging 7°C (46°F) compared to December's 10°C (50°F). Precipitation is significantly higher in December, with 150 mm (5.9 in) falling over 13 days, while January sees only 58 mm (2.3 in) across 7 days. Interestingly, despite the variations in temperature and rainfall, the humidity level remains consistent at 88% for both months. For more specific details on December weather, you can refer to Strunjan weather in December.

Compare Strunjan's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Strunjan

As January settles over Strunjan, the weather transforms into a crisp and invigorating experience. Temperatures dip considerably compared to the milder months, offering a refreshing chill marked by occasional frosty mornings. With precipitation making a brief appearance over just a few days, the lush surroundings begin their winter rest, while the high humidity blankets the area in a serene dampness. This unique winter atmosphere sets January apart from the more temperate and lively spring and summer months, inviting visitors to embrace the tranquility of the season. For a deeper understanding of the climate nuances, visit Strunjan Climate.