Last updated: March 24, 2025
January in Trevi, Italy, is characterized by cool temperatures that vary significantly throughout the month. With a maximum of 15°C (59°F) and a minimum dipping to -9°C (16°F), the average hovers around 3°C (39°F). Visitors can expect frequent rain, with an average precipitation amount of 54 mm (2.1 in) over approximately 9 days, contributing to a high humidity level of 85%. These conditions create a unique winter atmosphere, perfect for those looking to explore Trevi's scenic beauty amidst the charm of its winter landscapes.
In Trevi, Italy, January brings a distinct chill, with temperatures ranging from a brisk -9°C (16°F) at night to a milder 15°C (59°F) during the day. It’s a time when the average temperature hovers around 3°C (39°F), hinting at the depths of winter before the gradual warming of spring begins. This month marks a notable contrast to the colder February that follows, where temperatures can dip down to -14°C (7°F), showcasing a persistent winter grip. As winter progresses into March, residents and visitors can expect slightly milder conditions, but January maintains its frosty charm, making it a captivating month in the Italian landscape. The gradual warming trend through the months illustrates the shift from winter's freeze to the eventual embrace of spring, making January a fascinating time to experience Trevi's serene beauty.
In January, Trevi, Italy experiences an average precipitation of 54 mm (2.1 inches) over approximately 9 rainy days, setting a somewhat calm tone for the month. This amount represents the transition into a wetter winter season, with rainfall steadily increasing in February to 67 mm and peaking in December at 115 mm. As spring approaches, precipitation fluctuates further, culminating in May’s 89 mm and 14 rainy days, suggesting a shift towards more dynamic weather patterns. The consistent number of rainy days in January—similar to those in both February and March—indicates a reliable winter rhythm, while the gradual escalation in rainfall hints at the promise of the lush landscapes that define Trevi’s enchanting spring and summer seasons.
In January, Trevi, Italy, experiences a notable humidity level of 85%, marking one of the wettest months of the year. This high humidity reflects the winter season’s chilly embrace, setting the stage for a gradual decline in moisture as the year progresses. By February, humidity dips to 78%, signaling the slow shift towards spring. As temperatures rise in March and April, humidity continues to decrease, hovering around 69% and 71%, respectively. The trend of lower humidity persists through the warmer months, reaching a yearly low of 54% in August. However, as autumn approaches, humidity levels creep back up, culminating in December with a high of 86%. This cyclical pattern emphasizes Trevi's seasonal transitions, with winter and late autumn dominating the higher humidity levels.
In January, Trevi, Italy experiences a low UV Index of 2, allowing for a comfortable outdoor experience with a burn time of 45 minutes before needing protection. As the months progress, the UV Index gradually increases, reaching moderate levels in February at 4 and peaking in the summer with very high levels of 10 during both June and July, where only 15 minutes is safe before burning. This trend highlights a clear seasonal pattern, where the UV exposure intensifies as spring approaches and peaks during the summer months. Visitors and residents alike should plan their sun exposure accordingly, bearing in mind the notable rise in UV intensity and the shortened burn time from March onward. For more detailed UV Index information throughout the year, explore Trevi UV Index.
UV Risk Categories
January in Trevi, Italy, ushers in a modest 178 hours of sunshine, providing a gentle start to the year. As winter gives way to spring, the days gradually brighten, with February showcasing an increase to 233 hours. By March, the sunshine escalates to 311 hours, heralding the arrival of warmer days and vibrant blossoms. The pattern continues to climb, reaching a delightful 390 hours in May, peaking at 430 hours in July when the summer sun is at its zenith. However, as the seasons shift into autumn, the sunshine gradually wanes, with October dropping to 302 hours and November and December bringing 224 and 218 hours, respectively. This trend reflects a beautiful cycle of light and warmth that paints Trevi's landscapes throughout the year, making each season uniquely enchanting.
In Trevi, Italy, the likelihood of encountering sunny weather in January is relatively low, with just a 30% chance of sunshine. As the year progresses, this percentage climbs steadily, peaking in August at an inviting 69%. Notably, February and March show significant increases, boasting 52% and 62% sunny days, respectively, signaling the arrival of spring and a refreshing change from the winter gloom. While April and May maintain a decent 45% chance of sunlight, the trend remains clear: as the seasons shift toward summer, sunshine and warmth become increasingly prevalent, making Trevi a delightful destination for sun-seekers by mid-year.
In January, Trevi, Italy, experiences about 9 hours of daylight, setting the stage for a gradual increase as the months progress. By February, the sun lingers a bit longer with 10 hours of light, heralding the onset of spring. March sees a further expansion to 11 hours, allowing residents to savor more daylight, while April delights with 13 hours, inviting outdoor activities and blossoming nature. The days peak in June, offering an impressive 15 hours of sunshine. As summer transitions to autumn, daylight gradually diminishes, with 14 hours in July and 13 hours in August, before tapering off to 12 hours in September. October and November bring a retreat to 10 and 9 hours, respectively, echoing the return of shorter days, and December rounds out the year with the same brief 9 hours. This rhythmic pattern of daylight not only marks the changing seasons but enhances the charm of Trevi throughout the year.
In January, the winds of Trevi, Italy, weave through the charming streets at a gentle average speed of 2.5 m/s (6 mph), setting a serene tone for the new year. This tranquility persists into March, where wind speeds remain consistent, providing a stable backdrop for the scenery. However, in May, a subtle increase to 2.8 m/s (6 mph) introduces a refreshing shift as the landscape blossoms. As summer unfolds, June brings a slight dip to 2.0 m/s (5 mph), marking the calm before the bustling tourist season. Throughout the latter months of the year, the winds stabilize, fluctuating around 2.3 to 2.5 m/s, creating a rhythmic cycle that mirrors the changing seasons. This gentle breeze not only enhances the charm of Trevi but also invites residents and visitors alike to embrace the beauty of the Italian countryside.
The weather in Trevi 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 Trevi and find detailed weather information for every month.
January and February present distinct yet somewhat comparable weather conditions. In January, temperatures range from a chilly minimum of -9°C (16°F) to a mild maximum of 15°C (59°F), with an average temperature of 3°C (39°F). This month sees a total precipitation of 54 mm (2.1 in) over approximately 9 days, accompanied by high humidity levels at 85%. In contrast, February experiences slightly colder minimum temperatures, dipping down to -14°C (7°F), while the average temperature rises to 6°C (43°F), and the maximum reaches 18°C (65°F). Precipitation increases to 67 mm (2.6 in) over the same 9 days, albeit with reduced humidity at 78%. For a deeper look at February's weather specifics, check the details at Trevi weather in February.
In January, Trevi experiences colder temperatures, with a minimum of -9°C (16°F) and an average of 3°C (39°F), peaking at a maximum of 15°C (59°F). The month sees about 54 mm (2.1 in) of precipitation over 9 days, coupled with high humidity levels at 85%. By March, temperatures begin to rise, with a minimum of -18°C (0°F) and an average of 7°C (45°F), reaching up to 20°C (68°F) on warmer days. Precipitation increases to 80 mm (3.2 in) over the same number of days, and humidity decreases to 69%. For more details on the weather in March, check out Trevi weather in March.
In January, temperatures are much colder, with a minimum of -9°C (16°F) and an average of just 3°C (39°F), while April sees milder conditions, with average temperatures rising to 11°C (52°F) and a maximum of 24°C (75°F). January experiences higher humidity at 85%, contributing to a chillier feel, while April's humidity drops to 71%, making the warmer temperatures more pleasant. Additionally, January has a total precipitation of 54 mm (2.1 in) over 9 days, compared to April's 66 mm (2.6 in) across 10 days, indicating that while it rains slightly more in April, the overall climate feels much more welcoming. For more details on April weather, you can check Trevi weather in April.
January and May showcase starkly contrasting weather patterns. In January, temperatures can plummet as low as -9°C (16°F), with an average of just 3°C (39°F) and occasional highs of 15°C (59°F). The month is characterized by high humidity at 85% and about 54 mm (2.1 in) of precipitation spread over 9 days. In contrast, May brings much milder conditions, with minimum temperatures rising to 1°C (35°F) and average highs reaching 29°C (84°F), resulting in a pleasant average of 15°C (60°F). Although May experiences more rainfall—approximately 89 mm (3.5 in) over 14 days—the humidity drops to a cooler 71%. For more detailed insights into the climate during this vibrant month, check out this link: Trevi weather in May.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 15°C (59°F), and an average temperature of 3°C (39°F). The month sees about 54 mm (2.1 in) of precipitation over 9 days, accompanied by high humidity at 85%. In contrast, June experiences a much warmer climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 34°C (93°F) and an average temperature of 20°C (69°F). Precipitation is lower at 39 mm (1.5 in) over just 6 days, and humidity drops to a more comfortable 63%. For more details about June weather in Trevi, you can check this link: Trevi weather in June.
In January, temperatures can be quite chilly, with lows plummeting to -9°C (16°F) and averaging around 3°C (39°F). The month experiences considerable humidity at 85% and receives about 54 mm (2.1 in) of precipitation over roughly 9 days. In stark contrast, July brings much warmer conditions, with minimum temperatures around 12°C (53°F) and averages soaring to 23°C (74°F), peaking at a hot 35°C (96°F). This summer month sees significantly less precipitation—only 32 mm (1.3 in) over about 5 days—and lower humidity levels at 59%. For more detailed insights on July weather, visit Trevi weather in July.
January and August present stark contrasts in weather patterns. In January, temperatures range from a chilly -9°C (16°F) to a mild 15°C (59°F), with an average of about 3°C (39°F). The month experiences significant humidity at 85% and sees about 54 mm (2.1 in) of precipitation over 9 days. In contrast, August offers balmy weather with minimum temperatures of 9°C (49°F) and soaring highs reaching up to 37°C (99°F), averaging around 24°C (75°F). Precipitation is lighter at 41 mm (1.6 in) over just 8 days, and the humidity drops to a comfortable 54%. For more details on August weather in Trevi, check out Trevi weather in August.
January and September present strikingly different weather conditions. In January, temperatures can drop as low as -9°C (16°F), with an average of around 3°C (39°F) and maximums reaching only 15°C (59°F). The month experiences relatively high humidity at 85% and sees about 54 mm (2.1 in) of precipitation over 9 days. In contrast, September boasts a much milder climate with minimum temperatures of 5°C (42°F) and an average of 18°C (65°F), peaking at a warm 31°C (88°F). The precipitation increases slightly to 76 mm (3.0 in) over 8 days, but the humidity drops to 67%, making the overall feel of the month quite pleasant. For more insights, you can visit Trevi weather in September.
When comparing the weather in January and October, there are notable differences in temperature and humidity. January features a chilly range with minimum temperatures dropping to -9°C (16°F) and an average of 3°C (39°F), while October is much milder, with a minimum of 4°C (39°F) and an average of 14°C (57°F). Both months receive similar amounts of precipitation, around 54 mm (2.1 in), but January tends to be more humid at 85%, compared to October's 78%. Additionally, October enjoys more pleasant highs, reaching up to 25°C (78°F), making it a more favorable time for outdoor activities. For more details, check out Trevi weather in October.
In comparing the weather between January and November, we can observe notable differences in temperature and precipitation. January typically experiences colder temperatures, with a minimum of -9°C (16°F) and an average of 3°C (39°F), while November is milder, with temperatures ranging from -3°C (27°F) to an average of 10°C (49°F). Additionally, November sees significantly higher precipitation, accumulating 104 mm (4.1 in) over 13 days, compared to January's 54 mm (2.1 in) over 9 days. The humidity levels remain fairly similar, with January at 85% and November slightly lower at 84%. For more details, check out Trevi weather in November.
In January, the weather is slightly colder than in December, with average temperatures ranging from a minimum of -9°C (16°F) to a maximum of 15°C (59°F), compared to December's range of -6°C (22°F) to 15°C (59°F). Precipitation also decreases significantly in January, with 54 mm (2.1 in) over 9 days, compared to December’s 115 mm (4.5 in) across 11 days. Additionally, humidity remains relatively high in both months, with January at 85% and December at 86%. For those interested in December specifics, more information can be found here: Trevi weather in December.
As January grips Trevi, the weather takes a distinct turn compared to the milder months that precede it. With temperatures dipping to an average of 3°C, a noticeable chill fills the air, while the heightened humidity at 85% adds to the crispness. This month is also marked by increased precipitation, with 54 mm falling over 9 days, making it one of the wetter months in the region. Unlike the warmer, sunnier spells of the year, January invites cozy indoor activities and a chance to experience the enchanting winter landscape. To delve deeper into Trevi's weather patterns throughout the year, explore Trevi Climate.