Last updated: August 27, 2025
In Tromsø, Norway, January presents a unique blend of subarctic charm and chilly allure. The average temperature hovers around a brisk -5°C (23°F), while daily highs can reach a mild 7°C (45°F). However, the mercury can also plunge to a frosty minimum of -23°C (-9°F), showcasing the month's dramatic temperature swings. Visitors should prepare for significant precipitation, with 97 mm (3.8 in) spreading across 13 days, often mingled with the ethereal beauty of snow. With humidity levels soaring at 95%, this month not only captures the essence of winter but also offers a captivating glimpse into Norway's stunning natural landscapes.
In January, Tromso, Norway experiences a deep winter chill, with temperatures dipping as low as -23°C (-9°F) and averaging around -5°C (23°F). The max temperature reaches 7°C (45°F), hinting at the slightest warmth as the month progresses. This pattern of frigid conditions is characteristic of Tromso's winter, where peak cold typically sets in during December and January, before gradually easing in February. As winter wanes, February showcases a similar temperature range, with only a slight increase in averages, further indicating the lingering grasp of winter. This beautifully stark landscape is a testament to the extremes of arctic weather, offering glimpses of both the harsh and serene beauty of a Norwegian winter.
In Tromsø, Norway, January marks a significant start to the year with an average precipitation of 97 mm (3.8 in) over approximately 13 days. This sets a similar tone for February, which sees just a slight increase in precipitation to 99 mm (3.9 in), extending to 16 days of rain or snow. Interestingly, the wettest months follow in the spring, with March bringing 139 mm (5.5 in) spread across 19 days. This trend continues into April, where precipitation remains high at 119 mm (4.7 in), only to taper off in the drier months coming thereafter. The data indicates that while January may not be the wettest month, it certainly lays the groundwork for the moister patterns that characterize early spring in this stunning arctic locale.
In Tromsø, Norway, January is characterized by remarkably high humidity levels, averaging 95%, making it one of the dampest months of the year. This intense moisture sets the tone for the following months, with humidity gradually decreasing to 93% in February and 91% in March. As spring approaches, humidity continues to decline, reaching 89% in April and stabilizing around 83-85% during the summer months of May through July. Interestingly, a slight uptick in humidity is observed again in August, peaking at 88%, before transitioning back into the wetter fall season with levels near 91% by September. Throughout the year, Tromsø exhibits a cycle of high humidity, with a noticeable dip in the summer, yet consistently remaining above 80%, underscoring the region's maritime climate and its distinctive, invigorating air.
In Tromsø, Norway, January presents a low UV Index of 1, signifying minimal risk with a burn time of 45 minutes if exposed to the sun. This trend continues into February, maintaining the same UV level and exposure category. As we transition to March, there's a slight increase to a UV Index of 2, which still falls within the low exposure category. A more noticeable uptick occurs in April and May, where the UV Index rises to 3 and 4, respectively, indicating a moderate risk and reducing the burn time to just 30 minutes. The summer months, especially June and July, peak at a UV Index of 5, yet still categorized as moderate, reminding residents and visitors alike to be sun-smart. After the summer, the UV levels gradually decline, returning to a low status by October, and finally tapering off to 0 in December. This seasonal variation highlights the importance of being mindful of UV exposure year-round. For detailed insights, visit Tromso UV Index.
UV Risk Categories
In Tromsø, Norway, January offers a fleeting glimpse of sunlight, blanketing the Arctic city with just 11 hours of daylight as it shakes off the last traces of winter’s gloom. Yet, as the months progress, the embrace of the sun steadily strengthens; by February, daylight rises to 103 hours, hinting at the awakening of spring. The transformation is remarkable, with March boasting 239 hours, and by April, the sun graces the region for 333 hours, creating a vibrant tapestry of longer days. Come May and June, daylight peaks, amassing over 400 hours of golden sunshine, a source of joy for locals and visitors alike. However, as summer yields to autumn, the daylight begins to wane, descending back to 163 hours in October and dwindling sharply by November, when only 24 hours is captured, ultimately culminating in a stark December where darkness reigns with zero sunlight. This rhythmic cycle showcases the enchanting interplay between light and darkness experienced in this Arctic wonderland.
In January, Tromsø experiences a 33% chance of sunny weather, making it one of the brighter months of the winter season. This figure stands out, especially when compared to February's significantly lower likelihood of only 18%, indicating a steady decline in sunshine as winter deepens. As we move into March and April, the probability of sun begins to show slight improvements, with 19% and 25% respectively, yet still lags behind January’s hopeful percentages. This trend highlights January as a peak for sunny days in the cold season, giving residents and visitors a refreshing reprieve from the darker days that characterize much of the winter months in Tromsø.
In Tromsø, Norway, January marks the end of the polar night, where daylight barely extends to 4 hours. However, as the month progresses into February, the sun emerges a bit longer, offering a glimpse of hope with 7 hours of daylight. By March, the days grow noticeably longer, reaching 11 hours, and this upward trend continues dramatically into April with 16 hours. As spring advances, May gifts its residents an impressive 22 hours of daylight, paving the way for the dazzling mid-summer when June presents a remarkable 24-hour sunlit day. Following this peak, daylight gradually begins to wane; July still boasts 23 hours before transitioning into August with 17 hours. The decline persists into autumn, marking 13 hours in September and then tapering off to 8 hours in October. November brings further reduction to 6 hours, while December plunges back to the depths of darkness with 0 hours of daylight, once again enveloping Tromsø in the mysteries of the polar night. This rhythmic dance of light and dark paints a vibrant picture of life in Norway’s Arctic circle, reflecting the changing seasons and the enduring spirit of its inhabitants.
In January, Tromsø, Norway, experiences a gentle breeze with an average wind speed of 2.5 m/s (6 mph), setting a tranquil tone for the winter month. As the year progresses into February and March, the winds pick up slightly, rising to 2.9 m/s (6 mph), which adds a refreshing chill to the crisp air. This subtle increase persists into April, where the average wind speed reaches its seasonal peak at 3.0 m/s (7 mph) before tapering off again in May and June. Notably, the summer months yield consistent but milder winds, hovering around 2.6 m/s to 2.9 m/s (6-7 mph), while August brings a gentle drop to 2.4 m/s (5 mph). As autumn descends, the winds ease back further, stabilizing around 2.3 to 2.5 m/s (5-6 mph) towards the end of the year. This trend illustrates the rhythmic dance of Tromsø's winds, intertwining with the changing seasons and creating a unique atmosphere throughout the year.
Weather in Tromso varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Tromso, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather in Tromsø is characterized by a minimum temperature of -23°C (-9°F) and an average of -5°C (23°F), with a maximum reaching 7°C (45°F). The month sees considerable precipitation of 97 mm (3.8 in) over 13 days, accompanied by high humidity levels at 95%. In contrast, February experiences slightly milder conditions, with a minimum of -21°C (-5°F) and an average of -6°C (21°F). The maximum temperature remains similar at 7°C (44°F). February also brings a bit more precipitation at 99 mm (3.9 in) spread over 16 days, while humidity decreases slightly to 93%. For more detailed information on the weather specifics, you can check Tromso weather in February.
In January, the weather is characterized by colder temperatures, with an average of -5°C (23°F) and a maximum of 7°C (45°F). The month experiences significant precipitation, totaling 97 mm (3.8 in) over 13 days, and high humidity levels at 95%. In contrast, March shows a slight warming trend with average temperatures of -3°C (26°F) and maximums reaching 9°C (48°F). However, March is wetter, receiving 139 mm (5.5 in) of precipitation over 19 days, with humidity levels slightly lower at 91%. For more detailed insights on the weather patterns in March, you can explore Tromso weather in March.
In January, the weather in Tromsø is frigid, with average temperatures hovering around -5°C (23°F) and nighttime lows plummeting to a chilly -23°C (-9°F). The month is marked by significant precipitation, totaling 97 mm (3.8 in) over 13 days, accompanied by high humidity levels at 95%. In contrast, April offers a notable transition, with temperatures rising to an average of 0°C (33°F) during the day and reaching a maximum of 14°C (57°F). Although April has a higher total precipitation of 119 mm (4.7 in) over 17 days, the humidity drops slightly to 89%. For a more detailed look at Tromsø's weather during this spring month, you can visit Tromso weather in April.
January and May in Tromsø present strikingly different weather patterns. January is characterized by frigid temperatures, with minimums plummeting to -23°C (-9°F) and an average around -5°C (23°F). This month experiences significant precipitation, about 97 mm (3.8 in) over 13 days, coupled with high humidity levels at 95%, contributing to a harsh winter climate. In contrast, May sees a considerable rise in temperatures, where the minimums are -8°C (18°F) and the average reaches 5°C (41°F), peaking at a comforting 21°C (70°F). Precipitation in May is slightly higher at 98 mm (3.9 in), occurring over 17 days, but with a lower humidity of 83%, marking a shift toward a milder spring environment. For more details on weather patterns in May, check Tromso weather in May.
January and June present strikingly different weather conditions in Tromsø. In January, temperatures plummet to a minimum of -23°C (-9°F) and hover around an average of -5°C (23°F), with highs reaching just 7°C (45°F). The month sees significant precipitation, totaling 97 mm (3.8 in) over 13 days, coupled with high humidity at 95%. In stark contrast, June offers a much milder climate, with temperatures ranging from a minimum of 1°C (34°F) to an average of 9°C (49°F), peaking at 23°C (73°F). Although June experiences slightly more precipitation at 130 mm (5.1 in) and rain over 18 days, the lower humidity of 84% makes the weather feel more pleasant. For a detailed overview of June conditions, you can refer to Tromso weather in June.
January and July present strikingly different weather patterns. In January, temperatures can plummet to a frigid minimum of -23°C (-9°F), with an average of -5°C (23°F) and a maximum of 7°C (45°F). The month is characterized by high humidity at 95%, accompanied by 97 mm (3.8 in) of precipitation over 13 days. In contrast, July brings a much milder climate, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 28°C (82°F) and an average of 12°C (54°F). Although July sees slightly more precipitation at 100 mm (4.0 in) over 14 days, the humidity is lower at 85%. For more details on the summer climate, check out Tromso weather in July.
In January, Tromsø experiences frigid temperatures with a minimum of -23°C (-9°F) and an average temperature of -5°C (23°F), while August brings a much milder climate, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (80°F). Precipitation is also noteworthy; January sees 97 mm (3.8 in) spread over 13 days, whereas August receives a slightly higher total of 128 mm (5.0 in) over 19 days. Additionally, humidity levels are higher in January at 95%, compared to 88% in August, highlighting the stark contrast between the two months. For more detailed information, check out Tromso weather in August.
January in Tromsø presents a stark contrast to September's milder conditions. While January's temperatures can plummet to a chilling -23°C (-9°F), averaging around -5°C (23°F) and occasionally reaching up to 7°C (45°F), September enjoys a much more temperate range, with minimums of -1°C (30°F) and maximums reaching 20°C (69°F). Precipitation is more frequent in September, occurring on 17 days with a total of 132 mm (5.2 in), compared to January's 13 days and 97 mm (3.8 in). The humidity also dips slightly from January's 95% to September's 91%, offering a somewhat drier feel as summer transitions to autumn. For more details, check out Tromso weather in September.
In January, the weather is marked by significantly colder temperatures, with lows plummeting to -23°C (-9°F) and an average of -5°C (23°F), contrasted with October, where temperatures range from a minimum of -11°C (13°F) to an average of 3°C (37°F). While both months experience substantial precipitation, January sees about 97 mm (3.8 in) over 13 days, whereas October has slightly less at 87 mm (3.4 in) over 16 days. Additionally, the humidity levels are notably high in January at 95%, compared to 92% in October, creating a damp chill in the air as winter sets in. For a more detailed look at October's climate, check out Tromso weather in October.
When comparing the weather in January and November, we observe some notable differences. January typically experiences lower temperatures, with an average of -5°C (23°F) and a maximum of only 7°C (45°F), while November boasts slightly milder conditions, averaging -1°C (31°F) and reaching up to 10°C (50°F). Precipitation is also more frequent in November, occurring on 19 days with a total of 113 mm (4.5 in), compared to January's 13 days and 97 mm (3.8 in). Humidity remains high in both months, though January holds a marginally higher level at 95% compared to November's 92%. For more detailed information about Tromsø's weather in November, you can refer to this link: Tromso weather in November.
In comparing the weather between January and December, January tends to be slightly colder, with average temperatures around -5°C (23°F) compared to December's average of -4°C (25°F). The minimum temperatures dip further in January, reaching lows of -23°C (-9°F) versus December's minimum of -21°C (-5°F). January also experiences more precipitation, totaling 97 mm (3.8 in) over 13 days compared to December's 80 mm (3.1 in) across 15 days. Humidity levels are quite similar, with January at 95% and December slightly lower at 94%. For more detailed insights, check out Tromso weather in December.
January in Tromsø brings a unique atmospheric charm, starkly contrasting with the milder seasons. The average temperatures hover around -5°C (23°F), showcasing the depth of winter, while occasional peaks can reach up to 7°C (45°F). This chilling month is characterized by its high humidity, often sticking around 95%, which can create a crisp, frosty feel in the air. With 13 days of precipitation totaling 97 mm (3.8 in), it’s a wet winter month, setting the stage for stunning snow-covered landscapes. For those looking to understand how Tromsø’s climate fluctuates through the year, explore more in-depth at Tromso Climate.