Last updated: August 27, 2025
In December, Piran, Slovenia experiences a seasonal embrace, with temperatures ranging from a comfortable 16°C (60°F) to a crisp 4°C (39°F), averaging around 10°C (50°F). This month is characterized by a notable humidity level of 88%, creating a rich, moist atmosphere. Rainfall is frequent, with 150 mm (5.9 in) of precipitation spread across approximately 13 days, often gifting the town with a picturesque, misty charm. Whether you’re wandering through its historic streets or enjoying local cuisine, December in Piran offers a cozy and inviting experience amidst the serene winter scenery.
As December unfolds in Piran, Slovenia, the temperatures begin to dip, signaling the onset of winter. With minimums around 4°C (39°F) and highs peaking at 16°C (60°F), the month showcases a gentle chill, with an average temperature settling at 10°C (50°F). This drop from the milder conditions of November reflects a consistent trend as the year transitions into colder months. Unlike the frigid January and February, December offers a more moderate winter experience, making it a charming time for visitors to enjoy coastal walks or indulge in the local holiday spirit without the harsh bite of frost.
December in Piran, Slovenia, is characterized by notable precipitation, with an average of 150 mm (5.9 in) falling across the month. This places December among the wetter months of the year, following the trend set by November, which sees a peak of 183 mm of rainfall. Interestingly, December also records 13 days of precipitation, mirroring November's frequency, which indicates a consistent pattern of wet weather as the year closes. Comparatively, the prior months, such as October and September, exhibit less rainfall—though September alone experiences a higher total amount due to more intense short-term storms. The increase in precipitation during December underscores a climatic transition into the harsher winter months, setting the stage for the seasonal changes that await in the following year.
December in Piran, Slovenia, experiences a notable persistence of humidity, measuring at 88%—a slight decline from the preceding month's 89%. As the year unfolds, a clear trend emerges: humidity levels in Piran tend to be highest during the winter months, with January also reaching 88%. This marks a contrast to the summer, where humidity dips to its annual low of 51% in August. The gradual decline from the summer heat signifies a transition into the cooler months, yet December retains a high level of moisture, indicative of the region's maritime climate. Overall, the humidity pattern in Piran suggests a seasonal rhythm, oscillating between humid winters and drier summers, enhancing the area's unique atmospheric charm.
In Piran, Slovenia, the UV Index experiences a notable decline in December, dropping back to a low level of 2, where exposure is minimal and the burn time extends to 45 minutes. This seasonal trend reflects a broader pattern throughout the year, starting with a low index in January and gradually peaking in the summer months of May through August, when the UV Index reaches very high levels of 8 to 9. As autumn rolls in, the index decreases again, showcasing moderate reading in October and November before settling back down in December. For residents and visitors alike, it’s essential to stay informed about these fluctuations in UV radiation to plan sun exposure safely. To learn more about the UV Index in Piran, visit Piran UV Index.
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December in Piran, Slovenia, brings with it 207 hours of sunshine, closing the year with a gentle embrace of light. While the days grow shorter as winter approaches, this amount of sunshine is still a comforting contrast to January's often dreary start, which offers just 182 hours. As the year progresses, Piran basks in progressively brighter months, peaking in the summer with an impressive 430 hours in July. This upward trend culminates in the vibrant light of June, where the sun shines for 417 hours. However, as autumn settles in, sunshine hours gradually decline but remain considerable, with November enjoying 229 hours before December's finale. In Piran, each month weaves a tale of changing seasons, where even the softer winter light casts a warm glow on this charming coastal town.
In Piran, Slovenia, the likelihood of sunny weather shows a notable trend throughout the year, with December bringing a modest 36% chance of sunshine. As we transition from autumn to winter, the prospects for sunny days dip slightly from November's 35%, indicating a gradual decline in sunnier conditions. However, this is a stark contrast to the brighter months preceding it, particularly March and August, which enjoy sun-filled days of 65% and 62%, respectively. Despite December's lower odds, it still holds some potential for those seeking a bit of winter brightness amidst the cooler climate.
In Piran, Slovenia, the ebb and flow of daylight throughout the year showcases a captivating rhythm. Starting strong in June and July with a generous 15 hours of sunlight, the days gradually shorten as autumn approaches, dropping to 12 hours in September and 10 hours in October. The trend continues into winter, where December marks the year's nadir with just 8 hours of daylight. As we step into the new year, daylight begins to lengthen again, climbing to 9 hours in January and gradually rising until the sun graces the sky for 14 hours in May. This gentle cycle of daylight not only reflects the changing seasons but also enriches the experiences of both locals and visitors alike in this charming coastal town.
As December settles over Piran, Slovenia, the winds begin to calm, greeting residents and visitors with an average speed of just 3.3 m/s (7 mph). This decrease marks a notable transition from the brisk winds felt earlier in the autumn months, where average speeds hovered around 5.0 m/s (11 mph) in October and peaked at 5.2 m/s (12 mph) in November. The steady decline in wind speed through the latter part of the year reflects a shift towards the quieter, more tranquil winter months. Unlike the earlier breezes that ushered in the vibrant fall, December's gentle winds create a serene ambiance, perfect for enjoying the picturesque coastal views and the charm of this historic town.
Weather in Piran varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Piran, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit notable differences in weather conditions. December typically experiences milder temperatures, with an average high of 16°C (60°F) compared to January's maximum of 13°C (56°F). However, January tends to be colder, featuring lower minimum temperatures that can drop to -3°C (27°F), whereas December's minimum remains at a more moderate 4°C (39°F). Precipitation also varies significantly; December records 150 mm (5.9 in) over 13 days, while January sees only 58 mm (2.3 in) across just 7 days. Despite these differences, both months share similar humidity levels of 88%. For a closer look at January weather specifics, check Piran weather in January.
In December, the weather is generally milder, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 16°C (60°F), accompanied by higher humidity at 88%. The month experiences significant rainfall, averaging 150 mm (5.9 in) over 13 days. In contrast, February brings cooler conditions, with temperatures dipping as low as -3°C (27°F) and peaking at 13°C (56°F). This month also has less precipitation, totaling 106 mm (4.2 in) over 11 days, and a slightly lower humidity of 82%. For more specific details about February weather, check out Piran weather in February.
In December, the weather tends to be milder but damp, with average temperatures around 10°C (50°F) and maximums reaching up to 16°C (60°F). This month also sees significant rainfall, with approximately 150 mm (5.9 in) spread across 13 days, resulting in high humidity levels at 88%. In contrast, March experiences colder nights, with minimum temperatures dropping to -3°C (27°F), but maintains the same average high of 16°C (62°F). Precipitation is significantly lower at 57 mm (2.3 in), occurring over just 7 days, and humidity drops to 73%. For a more detailed look at March weather in Piran, you can check Piran weather in March.
December weather is characterized by cooler temperatures, with a minimum of 4°C (39°F) and an average of 10°C (50°F), peaking at 16°C (60°F). This month also experiences significant precipitation, with about 150 mm (5.9 in) falling over 13 days and high humidity levels at 88%. In contrast, April sees a rise in temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), reaching up to 20°C (68°F). Precipitation decreases to 86 mm (3.4 in) over just 8 days, accompanied by lower humidity at 73%. For more detailed information about the weather in April, check out Piran weather in April.
In December, the weather tends to be chillier, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 16°C (60°F). The month typically experiences significant precipitation, accumulating around 150 mm (5.9 in) over an average of 13 days, accompanied by high humidity levels at 88%. In contrast, May brings milder conditions with temperatures starting at a minimum of 10°C (50°F) and reaching up to 24°C (76°F) on warmer days. Precipitation is less frequent, totaling about 105 mm (4.2 in) over the same number of days, and the humidity drops to a more comfortable 70%. For more detailed information about the weather in May, you can check out Piran weather in May.
December and June in Piran showcase starkly contrasting weather conditions. In December, temperatures range from a chilly 4°C (39°F) to a mild 16°C (60°F), accompanied by significant rainfall of 150 mm (5.9 in) spread over 13 days, resulting in a high humidity level of 88%. In contrast, June boasts a much warmer climate with temperatures ranging from 16°C (61°F) to a pleasant 30°C (86°F), lower precipitation of 68 mm (2.7 in) over just 5 days, and reduced humidity at 69%. For those looking to explore the charms of this coastal town, the warmer June weather can offer a more inviting experience. For more details, visit Piran weather in June.
December and July present starkly contrasting weather patterns. In December, temperatures range from a chilly 4°C (39°F) at night to a mild 16°C (60°F) during the day, accompanied by a substantial 150 mm (5.9 in) of precipitation over 13 days, creating a humid environment with 88% humidity. In contrast, July is considerably warmer, with nighttime lows of 20°C (68°F) and daytime averages peaking at 29°C (85°F). The summer month experiences significantly less rainfall, totaling just 49 mm (1.9 in) over 6 days, and a lower humidity level of 63%. Such differences highlight the distinct seasonal characteristics of these two months. For more detailed information, check out Piran weather in July.
December and August present a striking contrast in weather conditions. In December, temperatures range from a chilly 4°C (39°F) to a mild 16°C (60°F), with an average of 10°C (50°F). This month is characterized by significant rainfall, receiving about 150 mm (5.9 in) over 13 days, and high humidity levels at 88%. In stark contrast, August boasts much warmer weather, with temperatures varying from a minimum of 17°C (63°F) to a maximum of 30°C (87°F), averaging around 26°C (78°F). It experiences considerably less precipitation with only 58 mm (2.3 in) over 6 days, alongside a much more comfortable humidity of 51%. For more specific insights into August weather, you can explore Piran weather in August.
When comparing the weather in December and September, a stark contrast is evident. December experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 10°C (50°F), while September boasts milder conditions, ranging from a minimum of 14°C (57°F) to an average of 22°C (71°F). In terms of precipitation, December sees about 150 mm (5.9 in) over 13 days, compared to September's higher 171 mm (6.7 in) in just 10 days. Additionally, December is much more humid, with humidity levels at 88%, whereas September enjoys a more comfortable 64%. For further details on September weather, visit Piran weather in September.
In comparing the weather of December and October, we see a notable shift towards cooler temperatures and increased precipitation. December experiences a minimum temperature of 4°C (39°F) and an average of 10°C (50°F), significantly lower than October's minimum of 11°C (52°F) and average of 17°C (64°F). Additionally, December is characterized by higher humidity levels at 88% and a greater amount of rainfall, totaling 150 mm (5.9 inches) over 13 days, compared to October’s 100 mm (4.0 inches) over just 10 days. For more detailed information about the weather in October, you can refer to Piran weather in October.
In comparing the weather between November and December, December tends to be cooler, with minimum temperatures averaging 4°C (39°F) compared to November's milder 6°C (42°F). The average temperature in December is also lower at 10°C (50°F) versus November’s 13°C (56°F). Both months experience similar precipitation levels, with December receiving 150 mm (5.9 in) and November 183 mm (7.2 in), although both see rain on about 13 days. Humidity levels remain relatively high in both months, with December at 88% and November at 89%. For a more detailed look at November's weather, you can check Piran weather in November.
As December settles over Piran, the weather takes on a distinctive chill, contrasting sharply with the milder months of autumn. While temperatures dip, averaging a brisk 10°C, the city experiences relatively high humidity levels, hovering around 88%, which can make the cold feel even more penetrating. With approximately 150 mm of precipitation falling over 13 days, December stands out as one of the wetter months, providing a stark difference from the drier summer months. This combination of cool temperatures and increased rainfall invites both locals and visitors to embrace the cozy, festive spirit of the season. For more details on what to expect throughout the year, check out Piran Climate.