Last updated: March 24, 2025
January in Trieste, Italy, offers a crisp and varied climate, with temperatures ranging from a maximum of 12°C (54°F) to a chilling minimum of -8°C (17°F). The average temperature settles at around 4°C (39°F), making it a month of contrasts. With 66 mm (2.6 in) of precipitation spread across 7 days, residents and visitors can expect a mix of rain and perhaps even the occasional dusting of snow. This month is characterized by a notable humidity level of 88%, adding a distinctive winter ambiance to the city's picturesque landscape. Whether you're strolling along the waterfront or exploring the charming streets, January's weather in Trieste presents a unique backdrop for winter adventures.
In January, Trieste, Italy experiences a crisp winter climate, with temperatures ranging from a chilly -8°C (17°F) at night to a maximum of 12°C (54°F) during the day. The average temperature hovers around 4°C (39°F), making it a brisk month, yet not the coldest of the year. This chilly start to the year sets the stage for a gradual warming trend, as February sees a slight increase, with daytime temperatures reaching up to 19°C (66°F) by the end of the month. As winter transitions to spring, March continues this upward trajectory, revealing the city's mild charm with daytime highs of 20°C (69°F) and nighttime lows dipping to just -10°C (14°F). Thus, January serves as a bridge, hinting at the warmer days to come while enveloping residents and visitors in a serene, frosty embrace.
In Trieste, Italy, January begins the year with a modest precipitation amount of 66 mm (2.6 in), falling over approximately 7 days. This sets a contrasting backdrop against the following months, as the precipitation steadily increases, with February's totals more than doubling January's at 128 mm (5.0 in). As the seasons shift, spring descends upon the region, bringing April to a peak of 117 mm (4.6 in), while May emerges as the wettest month, with 175 mm (6.9 in) pouring down across 19 days. The trend reveals a clear escalation in rainfall leading into late autumn, with November reaching a significant 199 mm (7.8 in), illustrating how Trieste's precipitation patterns vary dramatically throughout the year, from the relatively dry January to the lush, rain-soaked late fall.
In January, Trieste experiences a notable humidity level of 88%, setting the stage for a cool, damp month as winter lingers. This high humidity reflects a trend that continues into November and December, where levels hover around 88% and 89%, respectively, creating a wet and chilly atmosphere. As the year progresses, humidity levels gradually decline, with the most striking drop occurring in August, when it reaches a comfortable 51%. This significant decrease marks the transition into a more drier and pleasant summer, contrasting sharply with the winter months. By March and April, humidity stabilizes around 73%, indicative of the spring's refreshing but still slightly moist air. Overall, January serves as a pivotal point in Trieste's humidity cycle, where winter's grip is still felt before the gradual shift towards the dryer warmth of summer.
In January, Trieste, Italy, experiences a low UV Index of 2, indicating a minimal risk of harm from unprotected sun exposure. With a burn time of approximately 45 minutes, it's a good month for outdoor activities without the immediate need for sun protection. As the year progresses, the UV Index gradually rises, reaching moderate levels by February and March, before hitting high to very high categories from April through August, where burn times drastically decrease to just 15 minutes. This trend underscores the increasing intensity of sunshine as spring and summer approach, guiding residents and visitors to be more cautious and prepared for sun exposure during those months. For more in-depth information about UV levels throughout the year, visit Trieste UV Index.
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January in Trieste, Italy, shines with 182 hours of sunlight, a gentle invitation to embrace the New Year. As winter progresses into February, the days lengthen noticeably with 223 hours of sunshine, hinting at the vibrant energy to come. By March, the sun's embrace grows warmer, offering 315 hours, and as spring unfolds in April, residents bask in 344 hours of daylight. The trend continues into May and June, where sunshine peaks at 372 hours and 417 hours, respectively, igniting the city with life. Though July boasts the most hours at 430, the subsequent months see a gradual decline, with August providing 397 hours and September 326 hours. As the year transitions into autumn, sunlight retreats further, leaving 293 hours in October and dwindling to 229 hours in November before closing the year with 207 hours in December. This rhythmic dance of light throughout the year paints a captivating picture of Trieste's seasonal evolution, inviting both locals and visitors to savor every sunlit moment.
In Trieste, Italy, January ushers in the year with a 29% chance of sunny weather, setting the tone for a somewhat overcast winter month. As the calendar turns to February, the likelihood of sun climbs to 40%, hinting at the gradual lengthening of days. This upward trend continues into March, where the sun peeks through more frequently with a 61% chance, and subsequently, April and May maintain a similar brightness level. Interestingly, it seems that summer is not the only season that brightens up; even the typically cloudy late autumn months, like November and December, display a consistent chance of sunshine, oscillating between 36% and 37%. This data vividly illustrates that while sun-drenched days may be more scarce in January, the trend towards sunnier skies is just beginning to take shape as winter gives way to spring.
In January, Trieste, Italy experiences about 9 hours of daylight, marking the beginning of a gradual increase as winter gives way to spring. With each passing month, daylight stretches consistently, reaching 10 hours in February and 11 hours in March. This climb continues through April and May, where the city basks in 13 to 14 hours of sunshine, peaking in the summer months of June and July at an impressive 15 hours. As summer fades to autumn, the daylight hours begin to wane, dropping to 14 hours in August and tapering to 12 hours in September. By October, daylight dwindles back to 10 hours, with November and December settling at 9 and 8 hours, respectively. This cyclical journey of daylight not only reflects the rhythm of the seasons but also enhances the charm of Trieste throughout the year.
January in Trieste, Italy, experiences a gentle average wind speed of 3.0 m/s (7 mph), marking one of the year's brisker months. This invigorating breeze offers a refreshing start to winter, as it slightly surpasses the prevailing winds of February and March, which hover around 2.8 m/s and 2.6 m/s respectively. As spring approaches in April, the wind picks up slightly to 2.9 m/s, while May mirrors January’s vigor. Notably, the transition to summer sees a decline in wind speed, with June and July averaging below 2.5 m/s, leading into a more tranquil Mediterranean atmosphere. However, the later months bring a resurgence, with October reaching 3.7 m/s and November peaking at 3.9 m/s, before tapering off again in December. This seasonal pattern highlights Trieste's unique climatic shifts, where winter winds give way to a calm summer, only to come alive once more in the cooler months.
The weather in Trieste changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Trieste and find detailed weather information for every month.
In January, the weather typically features colder temperatures, with minimums dropping to -8°C (17°F) and an average high of 12°C (54°F). This month experiences about 66 mm (2.6 in) of precipitation over approximately 7 days, with humidity levels averaging around 88%.
In contrast, February brings slightly milder conditions, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 19°C (66°F) and an average of 6°C (43°F). However, it is notably wetter, recording 128 mm (5.0 in) of rain across about 10 days, and the humidity decreases to an average of 82%. For more detailed insights, you can check Trieste weather in February.
In January, the weather is quite chilly, with average temperatures ranging from a minimum of -8°C (17°F) to a maximum of 12°C (54°F). The month experiences significant precipitation, totaling 66 mm (2.6 in) over about 7 days, coupled with high humidity at 88%. In contrast, March brings a noticeable warming trend, with average temperatures shifting to a minimum of -10°C (14°F) and peaking at 20°C (69°F). However, it also sees an increase in precipitation, reaching 87 mm (3.4 in) across 10 days, while humidity decreases to 73%. For those looking to understand the specific weather patterns of March, Trieste weather in March provides detailed insights.
January weather is characterized by chilly temperatures, with nighttime lows plummeting to -8°C (17°F) and a mild average of 4°C (39°F), while daytime highs reach only 12°C (54°F). The month sees considerable precipitation of 66 mm (2.6 in) over about seven days and a high humidity level of 88%. In contrast, April experiences a significant warming trend, with minimum temperatures of -1°C (30°F) and an average of 12°C (54°F) rising to pleasant highs of 24°C (75°F). This month also has increased rainfall, totaling 117 mm (4.6 in) over ten days, but with lower humidity at 73%. For more details on April weather, you can visit Trieste weather in April.
January and May exhibit stark differences in weather patterns. In January, temperatures dip as low as -8°C (17°F) and reach a maximum of 12°C (54°F), with an average of just 4°C (39°F). The month is characterized by high humidity at 88% and experiences about 66 mm (2.6 in) of precipitation over approximately 7 days. In contrast, May brings a significant warming trend, with temperatures ranging from a minimum of 6°C (44°F) to a comfortable maximum of 26°C (79°F), and an average temperature of 16°C (61°F). However, May is also quite wet, receiving 175 mm (6.9 in) of rain across 19 days and a lower humidity level of 70%. For more detailed insights on the climate, check out Trieste weather in May.
January and June in Trieste present striking contrasts in weather. January is characterized by chilly temperatures, with a minimum of -8°C (17°F) and an average of 4°C (39°F), while June boasts a much warmer climate, featuring minimum temperatures of 11°C (52°F) and averaging 21°C (71°F). Precipitation is common in both months, but June sees a higher amount, with 105 mm (4.1 in) compared to January's 66 mm (2.6 in), although January has slightly fewer rainy days. Additionally, humidity levels are notably higher in January at 88%, compared to June's 69%. For a more detailed overview, check out Trieste weather in June.
In January, the weather is markedly colder, with temperatures ranging from a biting minimum of -8°C (17°F) to a maximum of 12°C (54°F) and an average of 4°C (39°F). This month also sees substantial humidity at 88% and experiences about 66 mm (2.6 in) of precipitation over roughly 7 days. In contrast, July offers a much milder climate, with temperatures increasing significantly to a minimum of 15°C (59°F), an average of 23°C (73°F), and peaking at 32°C (91°F). Though July has more days of precipitation, totaling 93 mm (3.6 in) over 13 days, the lower humidity of 63% allows for a more comfortable summer experience. For a closer look at July’s weather specifics, you can visit Trieste weather in July.
In January, temperatures in Trieste can be quite chilly, with a minimum of -8°C (17°F) and an average around 4°C (39°F), reaching a maximum of 12°C (54°F). The weather is typically humid, with a high humidity level of 88%, and there's an average of 66 mm (2.6 in) of precipitation over about 7 days.
Conversely, August presents a stark contrast with its milder temperatures, featuring a minimum of 13°C (56°F) and an average of 23°C (74°F), peaking at a warm 34°C (93°F). While it receives a bit more precipitation at 89 mm (3.5 in) over approximately 10 days, the overall humidity drops to a much more comfortable 51%. For more details about the weather in August, you can check Trieste weather in August.
In January, the weather is quite cold, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 12°C (54°F) and an average of 4°C (39°F). The month sees about 66 mm (2.6 in) of precipitation over approximately 7 days, accompanied by a high humidity of 88%. In stark contrast, September experiences milder temperatures, with a minimum of 8°C (46°F), an average of 19°C (66°F), and a maximum that can reach 30°C (87°F). Precipitation in September is significantly higher at 183 mm (7.2 in) over 12 days, but the humidity is lower at 64%. For more details, check out Trieste weather in September.
In January, the weather is notably colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 12°C (54°F) and an average of 4°C (39°F). The month is characterized by high humidity at 88% and receives about 66 mm (2.6 in) of precipitation over 7 days. In contrast, October enjoys milder temperatures, with a minimum of 6°C (43°F) and a maximum of 22°C (72°F), averaging 14°C (58°F). This month sees increased precipitation at 126 mm (5.0 in) across 10 days but lower humidity at 83%. For more detailed information, check out Trieste weather in October.
January weather is significantly colder than November's, featuring a minimum temperature that can drop to -8°C (17°F) and an average high of 12°C (54°F). In contrast, November enjoys milder temperatures with a minimum of 0°C (33°F) and a maximum of 18°C (65°F). While January sees less precipitation at 66 mm (2.6 in) over 7 days, November is much wetter, with 199 mm (7.8 in) spread across 13 days. Both months share comparable humidity levels, with January at 88% and November slightly higher at 89%. For a more detailed look at November's weather, you can check Trieste weather in November.
In comparing the weather of January and December, we notice distinct differences. January experiences colder temperatures, with a minimum of -8°C (17°F) and an average of 4°C (39°F), while December has milder conditions, with a minimum of -2°C (29°F) and an average of 6°C (42°F). Additionally, January sees less precipitation at 66 mm (2.6 in) over 7 days, compared to December's substantial 166 mm (6.5 in) spread over 12 days. Both months maintain a high humidity level of 88%, but the notable drop in temperatures and precipitation patterns highlights January's harsher winter conditions. For more details, you can check Trieste weather in December.
January in Trieste offers a distinct and chilly experience compared to other months. While the coastal city typically enjoys mild temperatures during the rest of the year, January's average temperature plunges, with crisp days often accompanied by heightened humidity. The chances of rain increase, leading to a soggier atmosphere that can feel more biting than the summer months. Despite the cooler and wetter conditions, the serene beauty of Trieste in winter makes it a unique time to explore its charming streets and waterfront. For a deeper look into how January fits into the overall climate profile of Trieste, check out Trieste Climate.