Last updated: August 27, 2025
May in Tromsø, Norway, offers a unique blend of chilly winds and glimpses of spring warmth. With maximum temperatures reaching a pleasant 21°C (70°F) and an average of 5°C (41°F), the month showcases a gradual transition to more temperate conditions. However, residents and visitors should be prepared for cooler nights, as temperatures can drop to a brisk -8°C (18°F). The landscape comes alive with approximately 98 mm (3.9 in) of precipitation over 17 days, contributing to the region's lush greenery. With a humidity level hovering around 83%, May in Tromsø is a captivating time to experience the invigorating aura of nature awakening.
In Tromso, Norway, the month of May heralds a significant shift in temperatures as the region shakes off the lingering chill of winter. With minimums hovering around -8°C (18°F) and an average rising to 5°C (41°F), locals and visitors alike can embrace the warmth of spring. Daytime highs can reach a pleasant 21°C (70°F), inviting outdoor adventures and the joy of longer daylight hours. This upward trend from the frigid temperatures of earlier months, where January and February see lows of -23°C (-9°F) and -21°C (-5°F) respectively, underscores the transition from the harsh Arctic conditions to more temperate spring weather. As May unfolds, the landscape transforms, making it an ideal time to experience Tromso's breathtaking beauty.
In Tromsø, Norway, May experiences a moderate amount of precipitation, with 98 mm (3.9 in) of rain typically falling over 17 days. This figure is in line with April's totals, maintaining a consistent level of moisture as the city transitions into summer. The precipitation in May marks a slight reduction compared to the wetter months preceding it, particularly March, which sees significantly higher rainfall. As the days grow longer and temperatures rise, the consistent precipitation helps nourish the rich landscapes surrounding Tromsø, setting the stage for vibrant growth in the preceding summer months. The weather patterns suggest a gradual shift towards drier conditions as the city moves into June, where 130 mm (5.1 in) of rain is expected, along with a slightly increased number of rainy days. Overall, May’s moderate rainfall plays a crucial role in sustaining the natural beauty of this Arctic paradise.
As we transition into May in Tromsø, Norway, the humidity begins to decline, reaching 83%, marking a notable decrease from the higher levels experienced in the winter months. This dip signifies the gradual shift towards summer, as the air becomes slightly drier compared to the previous months, with April registering at 89%. Interestingly, humidity levels remain relatively stable in the following months, hovering around 84% to 88% from June through August. This trend showcases a remarkable resilience in humidity, as the coastal climate keeps the air moist even in the warmer season. By September, however, we see a rebound as levels rise back to 91%, hinting at the onset of the cooler months. Thus, May serves as a bridge between the dampness of winter and the forthcoming summer comfort, allowing residents and visitors alike to enjoy a refreshing reprieve.
As spring blooms in Tromsø, Norway, the UV Index begins to rise, peaking at 4 in May, marking a transition from the cooler months of low exposure. In contrast to the January and February months, where the UV Index remains at a mere 1, May's increase to a moderate exposure category signals a time to be more mindful of sun safety, with a burn time of just 30 minutes. This trend continues into June and July, where the UV Index holds steady at 5, suggesting that outdoor activities should be balanced with sun protection. The glimmers of sunlight as spring progresses are wonderful but come with a reminder: be wise about UV exposure throughout the month. For more insights on UV levels and safety, check out Tromso UV Index.
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May in Tromsø, Norway, is a brilliant transition from the long, dark winter to the vibrant, sunlit summer. With 433 hours of sunshine, May marks a significant increase from the mere 11 hours in January, reflecting the gradual return of light after months of gloom. This uptick continues the upward trend that began in March, where the days started to lengthen appreciably. As we embrace the warmth of this spring month, May stands out not only for its remarkable sunshine but also as a prelude to the peak summer months of June and July, where daylight reaches its zenith. The joyous embrace of longer days sets the stage for outdoor adventures and the awakening of nature, showcasing Tromsø's stunning landscapes bathed in golden light.
As May approaches in Tromso, Norway, the chance of sunny weather hovers around 24%, making it one of the more promising months for a glimpse of sunshine compared to the winter months. While only a slight improvement from the preceding April’s 25%, the late spring brings a sense of hope as the days lengthen and the landscape bursts into life. However, this average masks a notable trend: the transition from winter's cold grip begins, but the likelihood of sunny days does dip slightly into the summer months of June and July, which boast 22% and 16% sunny chances, respectively. Hence, while May may not guarantee an abundance of bright skies, it certainly offers a refreshing chance for sunshine as the Arctic sun re-emerges after the long winter.
In Tromsø, Norway, the transition from winter to summer is marked by a dramatic increase in daylight duration. January starts with just 4 hours of daylight, but by February, that number rises to 7 hours, signaling the slow return of the sun. March brings 11 hours, setting the stage for a vibrant April with 16 hours of light. May is particularly striking, as daylight stretches to an impressive 22 hours, heralding the approach of the Midnight Sun in June, when daylight lasts a full 24 hours. The endless days begin to wane in July, with 23 hours, and August sees a substantial drop to 17 hours. As autumn approaches, daylight continues to decrease, with September offering 13 hours and October 8 hours before the darkness of winter sets in, culminating in December's complete absence of daylight. This rhythm of seasonal light not only shapes daily life in Tromsø but also creates a unique atmospheric experience for both residents and visitors alike.
In May, Tromsø experiences a gentle breeze with an average wind speed of 2.6 m/s (6 mph), a slight decrease from the preceding months. As spring takes hold, the winds calm after their gradual increase from winter, peaking at 3.0 m/s in April. The following months show a similar pattern, with winds remaining relatively mild through June and into the summer. This trend signifies a transition towards warmer weather, enhancing the charm of Tromsø's stunning natural landscapes. The overall consistency in wind speeds throughout this period underlines the unique climatic stability of this Arctic gem, inviting both locals and visitors to enjoy its breathtaking beauty.
Weather in Tromso varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Tromso, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present quite contrasting weather conditions. In May, temperatures range from a chilly -8°C (18°F) at the minimum to a pleasant 21°C (70°F) at the maximum, with an average of 5°C (41°F). This month experiences about 98 mm (3.9 in) of precipitation over roughly 17 days, coupled with a humidity level of 83%. In stark contrast, January is much colder, with minimum temperatures plunging to -23°C (-9°F) and a maximum of just 7°C (45°F), averaging -5°C (23°F). The total precipitation is slightly lower at 97 mm (3.8 in) but occurs over fewer days—13 days—along with a higher humidity of 95%. For a more detailed look at January weather, check out Tromso weather in January.
In comparing the weather of May and February, it's evident that May offers a significant contrast with milder temperatures and more pleasant conditions. While February experiences a frigid climate with average temperatures hovering around -6°C (21°F) and occasional lows plunging to -21°C (-5°F), May sees a much warmer range, with averages reaching 5°C (41°F) and highs of 21°C (70°F). Both months receive similar levels of precipitation—99 mm (3.9 in) for February and 98 mm (3.9 in) for May—but February has slightly higher humidity at 93%, compared to May's 83%. For a more detailed overview of February weather in Tromsø, you can explore Tromso weather in February.
In comparing the weather between March and May, it's clear that May experiences significantly milder temperatures, with a minimum of -8°C (18°F) and an average of 5°C (41°F), while March is much colder, starting at a minimum of -18°C (1°F) and averaging -3°C (26°F). Additionally, May has a maximum temperature that can reach up to 21°C (70°F), making it a more pleasant month overall. In terms of precipitation, March sees slightly higher levels with 139 mm (5.5 in) over 19 days compared to May's 98 mm (3.9 in) over 17 days. Humidity levels are also higher in March at 91%, compared to 83% in May. For more detailed information on March weather specifically, you can visit Tromso weather in March.
When comparing the weather in April and May, it becomes clear that May experiences a notable increase in temperature, with average highs reaching 21°C (70°F), while April's maximum temperatures only peak at 14°C (57°F). The minimum temperatures in May also show improvement, rising from April's chilly -14°C (7°F) to -8°C (18°F). Despite May having slightly less precipitation at 98 mm (3.9 in) compared to April's 119 mm (4.7 in), both months see precipitation on 17 days, with humidity levels slightly lower in May at 83%, as opposed to April's 89%. For more details on April's weather patterns, you can check out Tromso weather in April.
May and June in Tromsø showcase a gradual warming trend as spring transitions into summer. In May, temperatures range from a chilly minimum of -8°C (18°F) to a comfortable maximum of 21°C (70°F), with an average temperature of 5°C (41°F). The month experiences approximately 98 mm (3.9 in) of precipitation over 17 days, accompanied by a high humidity level of 83%.
In contrast, June sees a slight increase in warmth, with minimum temperatures rising to 1°C (34°F) and maximums reaching 23°C (73°F), resulting in an average temperature of 9°C (49°F). Precipitation increases to 130 mm (5.1 in) over 18 days, and humidity remains relatively constant at 84%. For a detailed look at the weather in June, check out Tromso weather in June.
May and July in Tromsø exhibit distinct weather patterns that highlight the transition from spring to summer. In May, temperatures range from a chilling minimum of -8°C (18°F) to a pleasant maximum of 21°C (70°F), with an average of 5°C (41°F). The month experiences significant precipitation of 98 mm (3.9 in) over 17 days, coupled with high humidity at 83%. In contrast, July brings warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 28°C (82°F), averaging 12°C (54°F). The precipitation slightly increases to 100 mm (4.0 in) but occurs over fewer days—just 14—while humidity remains relatively high at 85%. For a more detailed look at weather during this month, you can visit Tromso weather in July.
May and August exhibit distinct weather patterns in Tromsø, showcasing the transition from spring to summer. In May, temperatures range from a chilly minimum of -8°C (18°F) to a pleasant maximum of 21°C (70°F), with an average of 5°C (41°F). The month experiences moderate precipitation, totaling 98 mm (3.9 in) over 17 days, accompanied by a high humidity level of 83%. In contrast, August sees milder minimum temperatures of 4°C (39°F) and maximum temperatures climbing to 27°C (80°F), with an average temperature of 11°C (53°F). Although it is slightly wetter, with precipitation at 128 mm (5.0 in) over 19 days, humidity is slightly higher at 88%. For more details, visit Tromso weather in August.
May and September in Tromsø present a compelling contrast in weather. May typically experiences cooler temperatures, with an average of 5°C (41°F) and a maximum of 21°C (70°F), while September sees a slight drop in averages to 8°C (47°F), peaking at 20°C (69°F). Both months feature similar precipitation patterns, with May receiving 98 mm (3.9 in) and September 132 mm (5.2 in), yet the humidity rises marginally from May’s 83% to September’s 91%. You can find more detailed information on September's climate Tromso weather in September.
May and October in Tromsø present contrasting weather patterns. In May, temperatures typically range from a minimum of -8°C (18°F) to a maximum of 21°C (70°F), with an average of 5°C (41°F). This month experiences about 98 mm (3.9 in) of precipitation over 17 days and has a relative humidity of 83%. Conversely, October offers cooler temperatures, with lows reaching -11°C (13°F) and highs of 16°C (60°F), averaging around 3°C (37°F). The precipitation in October is slightly lower at 87 mm (3.4 in) but occurs over a similar number of days (16), while humidity increases to 92%. For more specific details about Tromsø's October weather, you can visit Tromso weather in October.
May and November exhibit markedly different weather patterns. In May, temperatures range from a chilly -8°C (18°F) at night to a pleasant 21°C (70°F) during the day, with an average of 5°C (41°F). The month sees about 98 mm (3.9 in) of precipitation over 17 days and has a humidity level of 83%. In contrast, November is significantly colder, with temperatures dropping to a minimum of -22°C (-7°F) and a maximum of only 10°C (50°F), resulting in an average temperature of -1°C (31°F). This month experiences slightly higher precipitation at 113 mm (4.5 in) over 19 days, along with a humidity of 92%. For more specific details on November weather, you can check out Tromso weather in November.
In May, temperatures in Tromsø experience a notable range, with minimums around -8°C (18°F) and maximums reaching up to 21°C (70°F), resulting in an average temperature of 5°C (41°F). The weather can be quite wet, with 98 mm (3.9 in) of precipitation over 17 days and a humidity level of 83%. In contrast, December sees more frigid temperatures, with minimums plummeting to -21°C (-5°F) and maximums only reaching 8°C (46°F), leading to a colder average of -4°C (25°F). Despite a slightly lower total precipitation of 80 mm (3.1 in) over 15 days, December's humidity is higher at 94%. For more information on the weather in December, visit Tromso weather in December.
As May unfolds in Tromsø, it marks a striking transition from the cold grip of winter to the gentle warmth of spring. With average temperatures rising to a mild 5°C, the city experiences a remarkable shift in atmosphere, inviting both locals and visitors to enjoy the outdoors. While the month still sees its share of precipitation, with about 17 rainy days contributing to a total of 98 mm, the frequent showers are often accompanied by bursts of sunshine, creating a dynamic and refreshing environment. The increased humidity at 83% adds a touch of coastal charm but can still feel quite pleasant compared to the biting cold of earlier months. This blend of temperatures and weather patterns in May makes Tromsø an enchanting destination for those eager to witness nature's awakening. For more detailed insights into Tromsø's climate, be sure to check out Tromso Climate.