Last updated: August 27, 2025
January in Izola, Slovenia, presents a cool maritime climate characterized by a maximum temperature reaching up to 13°C (56°F), while the average hovers around 5°C (41°F). Nighttime temperatures can dip to a brisk -7°C (20°F), especially during colder spells. This month receives a noteworthy 56 mm (2.2 in) of precipitation, spread across approximately 7 days, leading to an average humidity level of 88%. Visitors can expect a mixture of chilly air and occasional rain, making it a unique time to experience the coastal charm of Izola.
In January, Izola, Slovenia experiences a chilly winter climate with temperatures ranging from a brisk -7°C (20°F) to a mild 13°C (56°F) during the day, settling into an average of 5°C (41°F). This cold month often sets the stage for a gradual warming trend as winter transitions into spring. In February, the lows slightly improve, reaching -6°C (22°F), while daytime highs can climb up to 19°C (67°F) by the end of the month. As March approaches, the weather continues to moderate, showing a promising rise in temperatures with a minimum of -7°C (20°F) and maximums peaking at 21°C (70°F). Overall, January marks a distinctly crisp start to the year, with hints of milder conditions to follow in the subsequent months, providing both a frosty backdrop and the anticipation of the warming spring sun.
January in Izola, Slovenia, welcomes the year with a moderate precipitation total of 56 mm (2.2 in), occurring over approximately 7 rainy days. This sets a relatively low baseline compared to the wetter months that follow. As winter gives way to spring, February sees a significant leap, more than doubling January's figures to 118 mm (4.6 in) and spreading its rains over 10 days. The trend continues into the spring months, with March and April bringing 71 mm (2.8 in) and 103 mm (4.0 in) of precipitation, respectively. Notably, May bursts forth with the highest rainfall of the season at 142 mm (5.6 in), marking a shift towards a much wetter climate. This gradual increase in precipitation highlights the seasonal transition in Izola, leading up to the lush greenery of summer, while foreshadowing the heavier rainfalls that characterize the autumn months.
In January, the coastal town of Izola, Slovenia, experiences a notable humidity level of 88%, setting a damp tone for the month. This trend of high humidity persists into November and December, with both months also hovering around the 88% mark, creating a consistent, moist atmosphere during the winter season. As the year progresses into the spring months, humidity begins to decline; March and April see levels drop to 73%. This downward trend continues into the summer, reaching its lowest point at 51% in August. Notably, September witnesses a modest rise to 64%, before jumping back up to 83% in October. This cyclical pattern highlights Izola's humid winters contrasted by drier summers, offering a fascinating insight into the region's climatic rhythm.
In January, Izola enjoys a relatively low UV Index of 2, indicating that sun exposure is minimal, with a burn time of 45 minutes before one might risk skin damage. As the months progress, the UV Index gradually increases; by February, it rises to 3, marking a shift into the moderate category and shortening the burn time to 30 minutes. This trend continues through the spring, with March reaching 5 and April hitting 6. Here, the UV exposure becomes more significant, urging caution with a reduced burn time of 25 minutes in April. By the height of summer, the UV Index peaks at 9 in both June and July, where protective measures are essential due to the notably short burn time of just 15 minutes. As summer fades into autumn, the Index begins to descend, but not before August still registers a very high level of 8. September sees a decline to 7, transitioning back into the moderate range for October and November, before returning to a low index of 2 in December. This annual pattern highlights the importance of adjusting sun safety practices throughout the year. For more detailed information, check out Izola UV Index.
UV Risk Categories
In January, Izola, Slovenia, welcomes 182 hours of sunshine, marking the beginning of the year with a cozy yet crisp glow. As winter transitions into the early spring, the city basks in 223 hours of sunlight in February, gently coaxing the chill away. By March, sunshine soars to 315 hours, heralding the vibrant blooms of spring. The days only get brighter, reaching 344 hours in April and peaking at an impressive 372 hours in May. As summer unfolds, June greets visitors with 417 hours of radiant sunshine, culminating in 430 hours in July, the sunniest month of the year. Even in August, the sun remains generous with 397 hours. As fall approaches, the daylight begins to wane, with 326 hours in September and dwindling to 293 hours in October. The months of November and December bring a softer light, with 229 hours and 207 hours respectively, offering a reflective close to the year in this picturesque coastal town. The overall trend showcases the enchanting evolution of light, from winter's gentle beginnings to the vibrant summer sun, culminating in the warm embrace of Izola's changing seasons.
In January, Izola, Slovenia, offers a 32% chance of sunny weather, marking one of the year's lower probabilities for sunshine. This trend of limited sunlight gradually improves as the months progress; by February, the likelihood of clear skies rises to 41%, and March sees a significant leap to 63%, indicating a burgeoning brightness with the arrival of spring. As winter gives way to warmer months, the chances of sun generally hover between the 40% - 61% range from April through August, peaking in August. Following this sunny peak, a gentle decline begins, leading back into the chillier months of autumn and winter, where the chances of sun drop again. Overall, if you're seeking sunshine in Izola, waiting until late winter or spring might be your best bet!
In Izola, Slovenia, January heralds the return of longer days, with approximately 9 hours of daylight that gradually increase as the months progress. By February, daylight extends to 10 hours, setting the stage for spring's vibrant emergence. March further enhances this trend, offering 11 hours of sunlight, while April dazzles with 13 hours, paving the way for the lushness of May, which enjoys 14 hours. The peak of summer shines brightest in June and July, where daylight reaches a maximum of 15 hours, allowing for endless outdoor activities. As summer fades, August sees a slight decline to 14 hours, followed by September's retreat to 12 hours. The days continue to shorten through autumn, with October slipping to 10 hours and November and December yielding only 9 and 8 hours of light, respectively. This rhythmic shift in daylight not only marks the changing seasons but also invites residents and visitors alike to relish the beauty of Izola throughout the year.
In January, Izola, Slovenia, experiences a brisk windswept atmosphere with an average wind speed of 3.0 m/s (7 mph), setting the tone for the winter season. Following this, February and March see a slight decline, as the winds ease to 2.8 m/s and 2.6 m/s, respectively, creating a more serene coastal environment. As spring approaches in April, the winds revive to match January's vigor, maintaining an average of 3.0 m/s and signaling a transition. Throughout the spring and into early summer, wind speeds gradually rise again, peaking at 3.6 m/s in October and 3.7 m/s in November, suggesting a seasonal shift towards higher gusts just before the winter months return. This pattern reflects an intriguing ebb and flow of wind that shapes Izola's coastal charm, inviting both tranquility and spirited breezes as the year progresses.
Weather in Izola varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Izola, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is characterized by colder temperatures, with a minimum of -7°C (20°F) and an average of 5°C (41°F), while the maximum temperature reaches 13°C (56°F). January also sees considerable precipitation, averaging 56 mm (2.2 in) across 7 days, alongside a high humidity level of 88%. In contrast, February experiences slightly milder conditions, with a minimum of -6°C (22°F) and an average temperature of 7°C (44°F), peaking at 19°C (67°F). However, February is notably wetter, with 118 mm (4.6 in) of precipitation over 10 days and a lower humidity of 82%. For more details, you can view the Izola weather in February.
In comparing the weather between January and March, notable trends emerge. January tends to be colder, with average temperatures around 5°C (41°F), while March sees an increase to an average of 9°C (48°F). Even at their peaks, January's maximum temperature of 13°C (56°F) is surpassed in March, which can reach up to 21°C (70°F). January experiences higher humidity levels at 88%, contributing to a colder feel, whereas March's humidity drops to 73%. Precipitation is also slightly more prevalent in March, with 71 mm (2.8 in) over 8 days, compared to January's 56 mm (2.2 in) over 7 days. For more detailed insights, check out Izola weather in March.
January and April present stark contrasts in weather conditions. In January, temperatures can dip as low as -7°C (20°F), with an average of 5°C (41°F) and a maximum of 13°C (56°F). This winter month is characterized by high humidity at 88% and a total precipitation of 56 mm (2.2 in) occurring over about 7 days. In contrast, April sees a significant warming, with minimum temperatures of 1°C (34°F), an average of 13°C (55°F), and soaring to a maximum of 25°C (77°F). However, April is also wetter, with precipitation reaching 103 mm (4.0 in) over approximately 10 days and a lower humidity level of 73%. For a closer look at how the weather changes, check out Izola weather in April.
In January, weather conditions are quite chilly, with temperatures ranging from a frigid -7°C (20°F) to a mild 13°C (56°F), averaging around 5°C (41°F). The month experiences considerable humidity at 88%, and precipitation is moderately frequent, occurring over 7 days with a total of 56 mm (2.2 in). In contrast, May brings much warmer temperatures, with minimums of 7°C (46°F) and a maximum of 27°C (81°F), resulting in a comfortable average of 17°C (63°F). However, May is also wetter, with precipitation recorded on 17 days and a total of 142 mm (5.6 in). For more details about the weather in Izola during this month, check out Izola weather in May.
In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 13°C (56°F), and an average of 5°C (41°F). The month also experiences a significant amount of humidity at 88%, along with an average of 56 mm (2.2 in) of precipitation over about 7 days. In stark contrast, June brings much warmer conditions, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), and an average of 22°C (72°F). Although June has slightly more rainfall at 87 mm (3.4 in) across 8 days, the humidity drops to a comfortable 69%. For more details on weather specifics, check out Izola weather in June.
The weather in January and July presents a striking contrast. In January, temperatures can dip as low as -7°C (20°F), with an average of 5°C (41°F) and a maximum of 13°C (56°F), making it a chilly time of year. This month also sees significant humidity at 88% and about 56 mm (2.2 inches) of precipitation over approximately 7 days. In contrast, July offers a much warmer climate, with temperatures ranging from a minimum of 16°C (61°F) to an average of 24°C (75°F) and peaking at 33°C (91°F). Although July experiences slightly more precipitation at 65 mm (2.6 inches) over 8 days, the humidity is notably lower at 63%. For those interested in more detailed weather patterns, check out Izola weather in July.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 13°C (56°F), and an average temperature around 5°C (41°F). The month sees approximately 56 mm (2.2 in) of precipitation over around 7 days, accompanied by high humidity levels of 88%. Conversely, August presents a stark contrast with significantly warmer temperatures, hitting a minimum of 15°C (59°F) and a maximum of 34°C (94°F), while the average rests at a comfortable 25°C (77°F). Despite having slightly higher precipitation at 70 mm (2.7 in) over the same number of days, the humidity drops to 51%. For further details, you can check Izola weather in August.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 13°C (56°F) and an average of 5°C (41°F). The month typically experiences high humidity at 88% and moderate precipitation of 56 mm (2.2 in) over about 7 days. In contrast, September ushers in milder temperatures, with a minimum of 9°C (49°F) and a maximum of 32°C (90°F), resulting in an average of 20°C (68°F). This month sees a considerable increase in precipitation, totaling 164 mm (6.4 in) across roughly 10 days, but with notably lower humidity at 64%. For more detailed information about September weather, you can refer to Izola weather in September.
January and October showcase distinctly different weather patterns. In January, temperatures range from a chilly -7°C (20°F) to a mild 13°C (56°F), with an average of 5°C (41°F). The month sees around 56 mm (2.2 in) of precipitation over 7 days, and the humidity is high at 88%. In contrast, October offers a much warmer climate with minimum temperatures of 6°C (44°F) and maximums reaching 23°C (74°F), averaging 15°C (59°F). This month experiences increased precipitation at 107 mm (4.2 in) across 10 days, although the humidity remains slightly lower at 83%. For a detailed look at the weather during this vibrant autumn month, refer to Izola weather in October.
In January, temperatures are significantly colder, with a minimum of -7°C (20°F) and an average of 5°C (41°F), whereas November boasts milder conditions, ranging from a minimum of 1°C (34°F) to an average of 11°C (52°F). January experiences less precipitation overall, accumulating just 56 mm (2.2 in) over 7 days, while November sees a higher total of 176 mm (6.9 in) spread across 12 days. Humidity levels remain somewhat comparable, with January at 88% and November slightly higher at 89%. For more details about November conditions in Izola, you can explore Izola weather in November.
In January, temperatures are colder, with a minimum of -7°C (20°F) and an average of 5°C (41°F), compared to December's milder conditions where temperatures range from a minimum of -1°C (30°F) to an average of 7°C (44°F). While January sees less precipitation at 56 mm (2.2 in) over 7 days, December is notably wetter with 150 mm (5.9 in) over 12 days. Both months share a high humidity level of 88%, but January offers a slightly drier atmosphere overall. For more detailed information on December weather, you can visit Izola weather in December.
As January unfolds in Izola, the chill of winter is unmistakable. With average temperatures hovering around 5°C, this month stands in stark contrast to the warmer, sunnier months of the year. The cool breeze and high humidity levels—an average of 88%—can make the air feel crisper, inviting visitors to wrap up warmly. While precipitation is relatively low, with about 56 mm falling over seven days, this wintery month brings a unique charm that is a departure from the vibrant summer days. For a deeper understanding of how Izola's climate transforms throughout the year, visit Izola Climate.