May Weather in Kiruna, Sweden

Last updated: August 27, 2025

In May, Kiruna, Sweden experiences a dynamic blend of weather conditions that mark the transition from winter to spring. With maximum temperatures reaching 22°C (72°F) and an average of 4°C (39°F), there's a notable warmth in the air, though nights can dip as low as -9°C (17°F). The month sees approximately 54 mm (2.1 in) of precipitation spread over 11 days, contributing to an overall humidity level of 84%. This combination of temperatures and moisture creates a unique environment, ideal for enjoying the increasing daylight while still being prepared for occasional rain.

May Temperature in Kiruna

In May, Kiruna, Sweden, begins to shake off the remnants of winter, with temperatures steadily rising as spring progresses. The minimum temperature hovers at a brisk -9°C (17°F), while the city enjoys a pleasant average of 4°C (39°F), reaching up to a delightful 22°C (72°F) on warmer days. This notable shift from the previous months showcases a significant warming trend, as April's temperatures already hinted at a forthcoming thaw. As the days lengthen and the landscape begins to bloom, May offers both locals and visitors a taste of the sublimely transformative Scandinavian spring, contrasting sharply with the harsh chill of earlier winter months. Overall, May serves as a gateway to Kiruna's vibrant summer, inviting exploration and outdoor activities amidst the stunning natural beauty of the region.

May Weather in Kiruna: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Kiruna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kiruna, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec121220293952575243322216
Data source: Temperature data for Kiruna generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Kiruna

In May, Kiruna experiences a noticeable uptick in precipitation, with the total reaching 54 mm (2.1 in), marking a shift from the drier months of winter. This increase is accompanied by 11 days of rainfall, suggesting a transition into the wetter spring season. As the snow melts and temperatures rise, May sets the stage for the even wetter months ahead, with June expected to bring 74 mm (2.9 in) of precipitation. This trend reflects a gradual accumulation of moisture that peaks during the summer months of July and August, where rainfall can exceed 100 mm, emphasizing Kiruna's transformation into a lush, vibrant landscape after the starkness of winter.

May Precipitation Trends in Kiruna

The chart displays monthly precipitation patterns in Kiruna, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Kiruna, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec39343632547510810576844451
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Kiruna

In May, Kiruna experiences a noticeable dip in humidity, dropping to 84%—a refreshing change after the winter months when humidity levels peak at 100% in January. This gradual decline from January’s saturation reflects the arrival of longer days and warmer temperatures. As the months progress toward summer, the humidity continues to fluctuate slightly, reaching 81% in June before rising again in August. Overall, May stands out as a transitional period where the lingering chill of spring begins to yield to the warmth of summer, making it a particularly pleasant time in Kiruna.

May Average Humidity in Kiruna

This chart illustrates the average monthly humidity levels in Kiruna, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Kiruna is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%94%89%84%81%84%88%92%96%97%100%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Kiruna

As May arrives in Kiruna, Sweden, the UV Index nudges up to 4, indicating a moderate exposure risk. This marks a notable increase from the previous months, where January through April recorded indexes of 1 to 3. With this rise, residents and visitors should be mindful of sun exposure, as the burn time decreases to 30 minutes. It’s the perfect time to enjoy the emerging warmth of spring, but remember to protect your skin with sunscreen and appropriate clothing. For more insights on UV levels throughout the year, check out the detailed Kiruna UV Index.

Maximum UV Index Levels in Kiruna for May

The chart shows the monthly maximum UV Index (UVI) for Kiruna in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Kiruna typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543111
Data source: Kiruna May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Kiruna

As spring transitions into summer, May shines brilliantly in Kiruna, Sweden, boasting an impressive 443 hours of sunshine. This delightful increase is part of a broader trend, as the town gradually awakens from the long winter months, where January sees a mere 24 hours of sunlight. The trajectory is clear: sunshine steadily accumulates from February's 137 hours through April's 377 hours, culminating in the vibrant warmth of May. The month not only heralds longer days but also serves as a precursor to June, which brings even more light with 498 hours. As the sun embraces Kiruna, residents and visitors alike can relish the outdoor beauty that unfolds each day, embracing the essence of a Scandinavian summer.

Monthly Sunshine Duration in Kiruna: May Highlighted

The May sunshine duration represents the total number of hours Kiruna experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec24h137h286h377h443h498h459h379h260h137h71h2h
Data source: Kiruna May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kiruna During May

In May, Kiruna, Sweden experiences a modest 20% chance of sunny weather, a slight dip from the previous months of April and March, which offer more promising percentages of 36% and 39%, respectively. This decline in sunny prospects is part of a broader trend, as the likelihood of sunshine begins to wane after the brighter spring months, hitting a low before the summer months of June and July bring a return of sun-filled days, peaking at 43% and 42%. With these seasonal fluctuations, May serves as a bridge, hinting at the approaching warmth while still holding onto the lingering chill of winter.

Percentage of Sunny Days in May in Kiruna

The chart illustrates the percentage of sunny days in Kiruna throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Kiruna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%24%39%37%20%43%42%26%22%12%21%21%
Data source: Kiruna May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kiruna in May

As spring unfolds in Kiruna, Sweden, May brings a remarkable transformation in daylight as it offers a generous 20 hours of sunlight. This increase from April’s 15 hours marks a significant leap, as the days stretch longer, bidding farewell to the gloom of winter. Following the steady climb from March's 11 hours, May’s brightness not only heralds the approach of summer but also rejuvenates the landscape, bringing vibrancy to every corner of this Arctic town. The trend continues into June, where daylight reaches its peak with an astonishing 24 hours, creating an enchanting phenomenon known as the Midnight Sun. As the year progresses, however, the daylight begins to wane again, gradually tapering down to just 4 hours by November, reminding us of the cyclical nature of light in this unique region.

Average Daylight Hours in Kiruna for May

The chart illustrates the variation in daylight duration in Kiruna throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 8m7h 47m11h 47m15h 49m20h 48m24h22h 31m17h 13m13h 7m9h 10m4h 54m4h 52m
Data source: Kiruna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Kiruna

In May, the wind in Kiruna, Sweden settles back to a gentle pace, averaging 2.5 m/s (6 mph), mirroring January's calm demeanor. This month marks a transition, as the gusts have gradually waned from the brisk 3.7 m/s (8 mph) seen in March and the 3.2 m/s (7 mph) of April. Although conditions are mild, May's wind complements the budding spring landscape, offering a refreshing breath of cool air as warmer months approach. In the broader context, Kiruna experiences fluctuating winds throughout the year, with peaks generally occurring in early spring and late summer, but May's soothing breeze signifies a temporary reprieve before summer's more invigorating gusts return.

Average May Wind Speed in Kiruna

The chart displays monthly wind speed patterns in Kiruna, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.53.03.73.22.5 m/s2.73.02.63.53.22.62.9
Data source: Kiruna May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Kiruna Compares to Other Months

Weather in Kiruna varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Kiruna, focusing on differences in temperature, rainfall, humidity, and UV levels.

In May, temperatures in Kiruna range from a chilly -9°C (17°F) at night to a pleasant max of 22°C (72°F) during the day, with an average temperature of 4°C (39°F). The month experiences around 54 mm (2.1 in) of precipitation over approximately 11 days, and humidity levels are relatively high at 84%. In contrast, January brings far harsher weather, with temperatures plunging to a minimum of -32°C (-25°F) and averaging -11°C (13°F), peaking at just 5°C (41°F). Despite having slightly less precipitation at 39 mm (1.5 in) over the same number of days, January is characterized by extreme humidity at 100%, contributing to the cold, biting conditions. For a more detailed look at January weather, visit Kiruna weather in January.

May and February present starkly contrasting weather conditions. In May, temperatures range from a chill of -9°C (17°F) to a warm maximum of 22°C (72°F), with an average of 4°C (39°F). The month sees around 54 mm (2.1 in) of precipitation over approximately 11 days and a humidity level of 84%. Conversely, February is notably colder, with temperatures dropping as low as -30°C (-22°F) and averaging -11°C (12°F), peaking at just 7°C (46°F). The precipitation in February is lower at 34 mm (1.3 in) over 9 days, but humidity is higher at 98%. For further details, you can check Kiruna weather in February. Overall, May offers a milder, more temperate environment, while February is characterized by frigid conditions.

In comparing the weather between March and May, it's evident that May experiences significantly milder temperatures, with an average of 4°C (39°F) compared to March's frigid average of -6°C (21°F). May enjoys a maximum temperature of 22°C (72°F), whereas March barely reaches 8°C (48°F). Precipitation levels are higher in May, with 54 mm (2.1 in) over 11 days, compared to March’s 36 mm (1.4 in) spread across 12 days. Although humidity is slightly lower in May at 84% compared to March’s 93%, both months can feel quite damp. For more detailed insights into March weather, you can check Kiruna weather in March.

Comparing the weather between April and May reveals a notable shift as spring unfolds. In April, temperatures ranged from a chilly minimum of -18°C (1°F) to a milder maximum of 14°C (57°F), with an average of -2°C (29°F). Precipitation was relatively light at 31 mm (1.2 in) over 7 days, accompanied by high humidity levels averaging 89%. In contrast, May brings a significant warming trend, with temperatures fluctuating from a low of -9°C (17°F) to a comfortable high of 22°C (72°F) and an average of 4°C (39°F). The month sees an increase in precipitation to 54 mm (2.1 in) spread over 11 days, while humidity remains high at 84%. For more detailed information about April's weather conditions, you can visit Kiruna weather in April.

In comparing the weather between May and June, we can observe a notable transition as summer approaches. May experiences a wider temperature range, with a minimum of -9°C (17°F) and a maximum of 22°C (72°F), leading to an average of 4°C (39°F). It also sees a higher humidity level at 84%, and while it has a total precipitation of 54 mm (2.1 in) spread over 11 days, the cooler temperatures persist. In contrast, June brings warmer conditions with temperatures ranging from a minimum of -1°C (30°F) to a pleasant maximum of 26°C (79°F) and an average of 11°C (52°F). Although it has slightly increased precipitation of 74 mm (2.9 in) over 10 days, humidity dips to 81%. Thus, June marks the arrival of more temperate and enjoyable weather, indicative of summer’s onset. For more detailed insights, check Kiruna weather in June.

May in Kiruna presents cooler temperatures, with a minimum of -9°C (17°F) and an average of 4°C (39°F), while July sees a significant warming trend, starting at a minimum of 2°C (36°F) and reaching a maximum of 30°C (85°F). Precipitation is comparatively higher in July, totaling 108 mm (4.2 in) over 13 days, as opposed to May's 54 mm (2.1 in) across 11 days. Despite both months having the same humidity level of 84%, the overall weather in July is more conducive to outdoor activities, showcasing the vibrant summer months in Kiruna. For further details, check Kiruna weather in July.

May and August weather in Kiruna contrasts significantly. In May, temperatures range from a chilly -9°C (17°F) to a comfortable 22°C (72°F), with an average of 4°C (39°F) and a relatively low precipitation level of 54 mm (2.1 in) over 11 days. The humidity sits at 84%, adding a slight chill to the air. In contrast, August sees warmer temperatures, with a minimum of 1°C (34°F), an average of 11°C (53°F), and a maximum of 27°C (82°F). Rainfall increases to 104 mm (4.1 in) across 16 days, and humidity rises to 88%, contributing to a more humid atmosphere. For more detailed information, you can check Kiruna weather in August.

May and September showcase distinct weather patterns, reflecting a transition from spring to early autumn. In May, temperatures range from a minimum of -9°C (17°F) to a maximum of 22°C (72°F), with an average of 4°C (39°F). The month sees moderate precipitation of 54 mm (2.1 in) over 11 days, accompanied by a relatively high humidity of 84%. In contrast, September features temperatures that range from -5°C (24°F) to 20°C (69°F), with an average slightly higher at 6°C (44°F). This month experiences increased precipitation at 76 mm (3.0 in) over 12 days and even higher humidity levels of 92%. For more details about September weather, you can visit Kiruna weather in September.

May and October present distinctly different weather patterns in Kiruna. In May, temperatures range from a minimum of -9°C (17°F) to a warm average of 4°C (39°F), peaking at 22°C (72°F). This month typically experiences 54 mm (2.1 in) of precipitation over about 11 days, with humidity averaging 84%. In contrast, October sees much colder conditions, with temperatures dropping to a minimum of -17°C (2°F) and an average of 0°C (32°F), with highs only reaching 12°C (54°F). Precipitation increases in October to 84 mm (3.3 in) over approximately 15 days, accompanied by higher humidity levels of 96%. For more detailed information about October weather, you can visit Kiruna weather in October.

May and November present strikingly different weather conditions. In May, temperatures range from a chilly -9°C (17°F) at night to a comfortable max of 22°C (72°F) during the day, with an average of 4°C (39°F). The month sees an average precipitation of 54 mm (2.1 in) spread over 11 days, coupled with a relatively high humidity of 84%. In contrast, November brings much colder weather, with temperatures dipping as low as -28°C (-17°F) and peaking at only 7°C (44°F), averaging around -5°C (23°F). Precipitation decreases slightly to 44 mm (1.7 in) over the same number of days, but the humidity rises to a notable 97%. For more details about November weather, you can check Kiruna weather in November.

May and December present stark contrasts in weather. In May, temperatures range from a chilly -9°C (17°F) at night to a pleasant 22°C (72°F) during the day, with an average temperature of 4°C (39°F). The month sees around 54 mm (2.1 in) of precipitation over 11 days, and humidity hovers at 84%, giving a fresh spring feel. In contrast, December is much harsher, with daytime temperatures averaging a frigid -9°C (17°F) and dipping as low as -28°C (-19°F) at night. Precipitation is slightly less at 51 mm (2.0 in) over 12 days, but the humidity reaches a high 100%, often resulting in a stark, icy landscape. For more detailed information about the weather in this winter month, visit Kiruna weather in December.

Compare Kiruna's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Kiruna

May in Kiruna marks a transition into the warmer months, with average temperatures rising significantly compared to the chilling depths of winter. While it can still dip into the negatives, the arrival of milder days brings a refreshing change, allowing the landscape to awaken from its frosty slumber. With an average humidity of 84% and rainfall occurring on about 11 days, May showcases a unique blend of sun and showers, creating an environment ripe for the blossoming flora typical of spring. This variability characterizes May as a month of contrasts, where the last remnants of winter meet the first signs of summer warmth. To explore more about how Kiruna's weather unfolds throughout the year, visit Kiruna Climate.