Last updated: August 27, 2025
In Tromsø, Norway, October presents a striking contrast in weather conditions as the autumn season transitions towards winter. With average temperatures hovering around 3°C (37°F), the region experiences maximum highs reaching 16°C (60°F), while chilly nights can drop to a brisk -11°C (13°F). The month is characterized by recurring precipitation, with about 87 mm (3.4 in) falling over 16 days, contributing to a humidity level persistently at 92%. This blend of cool temperatures and wet conditions creates a unique atmosphere, setting the stage for the beauty of the Northern Lights and transforming the scenic landscapes of Tromsø into a captivating autumn tapestry.
In October, Tromso, Norway, begins the transition into the heart of winter, with temperatures ranging from a brisk -11°C (13°F) at night to a mild 16°C (60°F) during the day. This month features an average temperature of 3°C (37°F), signaling the shift from the preceding autumn warmth. While the nights are noticeably colder, the days still retain a touch of late-season warmth, suggesting a delicate balance between lingering autumn and the impending chill of winter. As October progresses, one can expect the landscapes to be adorned with frost, creating a picturesque backdrop that captures the essence of the Arctic, making it an ideal time for outdoor adventures amidst breathtaking scenery.
In October, Tromsø experiences a moderate level of precipitation, with an average rainfall of 87 mm (3.4 in) over approximately 16 days. This marks a notable decrease compared to the wetter months of September and August, which both exceeded 130 mm, suggesting a trend toward drier conditions as autumn progresses. Interestingly, October's rainfall is still significant, echoing the wet weather pattern typical of the earlier months, yet it sets the stage for the drier winter months ahead. The consistent rainfall throughout the fall months maintains Tromsø’s lush landscapes, while the gradual decline in precipitation hints at an approaching winter lull.
In October, Tromso experiences a humidity level of 92%, a slight increase from September's 91%. This trend of elevated humidity continues into the late autumn months, with November also maintaining a humidity level of 92%. Throughout the year, Tromso's humidity remains consistently high, peaking in the winter months of January and February at 95% and 93%, respectively. Interestingly, as spring approaches, humidity gradually declines, reaching its lowest in May at 83%, before rising slightly in the summer. Thus, October marks a return to the dampness typical of late autumn, underscoring the region's characteristic moist climate as it transitions into winter.
In Tromsø, Norway, the UV Index experiences a noticeable dip as autumn sets in, with October reflecting a low UV Index of 1. This indicates minimal risk for sun damage, allowing residents and visitors to enjoy the crisp autumn air without significant concern for UV exposure. The consistent trend seen from February to October highlights a gradual increase in UV levels from winter through summer, peaking in June and July at a moderate UV Index of 5. As the season shifts towards winter, the UV Index drops again, easing back to levels comparable to the earlier months of the year. Protecting your skin is less of a priority in this period, but it’s still wise to be mindful during any outdoor activities. For more detailed information, check out the Tromso UV Index.
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As autumn settles in, October in Tromsø, Norway brings a notable shift in daylight, with 163 hours of sunshine illuminating the landscape. After basking in the long, bright days of July and August, which collectively offer over 800 hours of sunlight, October sees a gentle retreat into shorter days. This month's sunshine is a significant drop from the summer peak, yet it's still a pleasant respite compared to the impending dark months of November and December. Reflecting this trend, October serves as a bridge, allowing residents and visitors to savor the fleeting warmth of fall before winter's arrival plunges the region back into near darkness. As the days grow shorter, the crisp air and vibrant foliage create an enchanting atmosphere that captures the essence of Nordic autumn.
As October sets in Tromsø, Norway, the chance of sunny weather remains relatively low at 15%, consistent with the trend of diminishing sunshine as winter approaches. This month experiences one of the weakest probabilities for sunshine, only slightly better than the summer months. In contrast to April and May, when sunshine is more frequent, October reflects a gradual decline, similar to the increasing chill felt with the onset of autumn. The sun, once a vibrant companion in the summer, is now retreating, making those rare sunny days even more cherished amidst the encroaching darkness of the Arctic winter.
As October unfolds in Tromsø, Norway, daylight begins its gradual descent, offering about 8 hours of illumination—a noticeable reduction from the bright evenings of summer. This month's daylight duration is a stark contrast to the continuous 24 hours experienced in June, heralding the slow shift toward the long, dark winter months. After basking in as many as 22 hours of light in May, the daylight swiftly decreases in October, following the trend established in September with 13 hours. It's a poignant reminder of nature's rhythm, where the vibrant hues of autumn are briefly illuminated before November brings even shorter days, casting an enchanting yet somber time in this Arctic landscape. The cycle of light and darkness defines life in Tromsø, making each changing season a unique experience.
As October arrives in Tromsø, Norway, the whispers of the wind gently signal the descent into winter. With an average wind speed of 2.6 m/s (6 mph), the breezes are slightly stronger than September's calm, reflecting a subtle shift in the season. This month continues a trend of relatively low wind speeds that have persisted since summer, with values hovering between 2.4 m/s (5 mph) and 3.0 m/s (7 mph) throughout the year. Notably, the winds maintain consistency, rarely exceeding 3.0 m/s, ensuring that the captivating autumn views can be enjoyed without the distraction of overly blustery conditions. As the golden foliage begins to fall, the October wind cradles Tromsø in a gentle embrace, setting the stage for the enchanting winter months ahead.
Weather in Tromso varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Tromso, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present stark contrasts in weather patterns. In October, temperatures range from a minimum of -11°C (13°F) to a maximum of 16°C (60°F), with an average of 3°C (37°F). The month sees about 87 mm (3.4 in) of precipitation over 16 days and maintains a high humidity of 92%. In contrast, January is significantly colder, with temperatures dropping to a minimum of -23°C (-9°F) and peaking at 7°C (45°F), averaging -5°C (23°F). January experiences a slightly higher precipitation level of 97 mm (3.8 in) over 13 days, accompanied by a humidity of 95%. For more details on the winter conditions in Tromsø, you can check Tromso weather in January.
In comparing the weather conditions of October and February, we see notable differences in temperature and overall climate. October experiences milder temperatures, with a minimum of -11°C (13°F) and an average of 3°C (37°F), reaching a maximum of 16°C (60°F). In contrast, February is significantly colder, with a minimum of -21°C (-5°F) and an average temperature of -6°C (21°F), peaking at just 7°C (44°F). Precipitation is relatively consistent in both months, with October receiving 87 mm (3.4 in) and February slightly higher at 99 mm (3.9 in), and both months experiencing precipitation on approximately 16 days. Humidity levels are also quite similar, at 92% in October and 93% in February. For more specific details about February weather, you can visit Tromso weather in February.
When comparing the weather in October and March, notable differences emerge. October typically sees milder temperatures, with a minimum of -11°C (13°F) and an average of 3°C (37°F), while March experiences a chillier minimum of -18°C (1°F) and an average of -3°C (26°F). Precipitation is more frequent in March, totaling 139 mm (5.5 in) over 19 days, compared to October's 87 mm (3.4 in) over 16 days. Additionally, humidity levels are quite similar, with October at 92% and March at 91%. This makes March feel significantly colder despite a slightly lower humidity level. For more detailed insights on Tromso's weather during this time, check out Tromso weather in March.
When comparing October and April weather in Tromsø, it’s evident that both months present chilly temperatures but with distinct characteristics. In October, temperatures range from a minimum of -11°C (13°F) to a maximum of 16°C (60°F), with an average of 3°C (37°F), while April experiences slightly colder conditions with a minimum of -14°C (7°F) and an average of 0°C (33°F), peaking at 14°C (57°F). Precipitation is also notable in both months; October sees about 87 mm (3.4 in) over 16 days, whereas April has increased precipitation at 119 mm (4.7 in) over 17 days. Humidity levels are high in both months, with October at 92% and April at 89%, making the air feel quite damp. For those interested in detailed weather patterns in April, visit Tromso weather in April.
When comparing October and May weather in Tromsø, we observe notable differences in temperature and precipitation. October experiences colder temperatures, with a minimum of -11°C (13°F) and an average of about 3°C (37°F), while May offers a milder range, with a minimum of -8°C (18°F) and an average of 5°C (41°F). Although both months see significant precipitation—87 mm (3.4 in) in October and 98 mm (3.9 in) in May—October's weather feels more damp, with higher humidity at 92% compared to May's 83%. For a more detailed look at May's weather, visit Tromso weather in May.
October in Tromsø is characterized by significantly colder temperatures, with an average of just 3°C (37°F) and nighttime lows dipping to -11°C (13°F). The month features 87 mm (3.4 in) of precipitation over 16 days, contributing to a relatively high humidity level of 92%. In contrast, June enjoys milder conditions with average temperatures around 9°C (49°F) and daytime highs reaching up to 23°C (73°F). Although June sees a higher total precipitation of 130 mm (5.1 in) over 18 days, the humidity remains more comfortable at 84%. For a closer look at the weather during June, you can visit Tromso weather in June.
In comparing the weather between October and July, October typically experiences much colder temperatures, with minimums dipping to -11°C (13°F) and an average of only 3°C (37°F), while July enjoys milder conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 28°C (82°F). Precipitation levels are somewhat similar, with October seeing 87 mm (3.4 in) over 16 days and July experiencing slightly higher rainfall at 100 mm (4.0 in) across 14 days. Additionally, October's humidity sits at a high 92%, compared to July's relatively lower 85%. For more detailed information, you can visit Tromso weather in July.
When comparing the weather between October and August, notable differences emerge. October sees significantly cooler temperatures, with a low of -11°C (13°F) and an average of 3°C (37°F), whereas August enjoys milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 27°C (80°F). Precipitation is also a factor; October experiences 87 mm (3.4 in) across 16 days, while August has a higher total of 128 mm (5.0 in) over 19 days. Humidity levels are relatively high in both months, with October at 92% and August slightly lower at 88%. For more detailed information on weather conditions, check out Tromso weather in August.
In Tromsø, the weather in October shows a marked drop in average temperatures compared to September, with the average temperature decreasing from 8°C (47°F) down to 3°C (37°F). October experiences colder minimum temperatures, dipping to -11°C (13°F), while September's minimum is relatively milder at -1°C (30°F). Precipitation in October is less than in September, totaling 87 mm (3.4 in) over 16 days, compared to September's 132 mm (5.2 in) over 17 days. However, humidity remains high in both months, with October at 92% and September at 91%. For a detailed look at September's weather, you can check Tromso weather in September.
In comparing the weather of October and November, October tends to be milder, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 16°C (60°F), while November sees a significant drop, with temperatures ranging from a low of -22°C (-7°F) to a high of 10°C (50°F). Despite October's warmer temperatures, November experiences a higher average precipitation level of 113 mm (4.5 in) over 19 days compared to October's 87 mm (3.4 in) over 16 days. Humidity remains constant at 92% for both months, but the shorter daylight and colder conditions in November create a stark contrast to the more temperate October weather. For more details on November's weather, visit Tromso weather in November.
October weather in Tromsø tends to be milder, with average temperatures around 3°C (37°F) and a maximum of 16°C (60°F). This month receives about 87 mm (3.4 in) of precipitation over 16 days, with humidity levels at a high 92%. In contrast, December is significantly colder, with average temperatures dropping to -4°C (25°F), and maximums reaching only 8°C (46°F). Although December sees slightly less precipitation at 80 mm (3.1 in) over 15 days, the humidity remains high at 94%. For a more detailed look at December’s weather, check out Tromso weather in December.
As October sweeps into Tromsø, the transition from the crispness of autumn to the chill of winter is unmistakable. Temperatures start to dip, showing a notable contrast compared to the milder months preceding it, with evenings often reaching a brisk -11°C. Rainfall becomes more frequent, with around half the month experiencing precipitation, adding to the already high humidity of 92% that can make the air feel even cooler. This month marks a significant shift, as vibrant fall colors begin to fade and the likelihood of seeing the beautiful Northern Lights increases with the longer nights. For more detailed insights into Tromsø's weather patterns throughout the year, visit Tromso Climate.