Last updated: August 27, 2025
May in Luleå, Sweden brings a refreshing transition into spring, with temperatures ranging from a maximum of 18°C (65°F) to a cool average of 5°C (42°F). As the landscape awakens, residents can expect a minimum temperature of -2°C (28°F) during the chillier nights. While the weather is mostly pleasant, precipitation totals around 43 mm (1.7 in) over approximately seven days, creating a backdrop of lush greenery and vibrant blooms. Humidity levels rise to 81%, adding a touch of freshness to the crisp air, making May a delightful time to explore Luleå's scenic beauty.
In May, Luleå, Sweden, begins to shake off the chill of winter, welcoming warmer days as temperatures steadily rise. The month starts with a minimum drop to around -2°C (28°F), but as the days progress, the average temperature climbs to a comfortable 5°C (42°F). By mid-month, residents can enjoy daytime highs reaching up to 18°C (65°F), marking a delightful shift from the previous months' frigid spells. This transition not only signifies the melting of snow but also invites the beauty of spring, encouraging outdoor activities and the blossoming of nature. As Luleå embraces this refreshing change, it sets the stage for the vibrant, warm summer months ahead.
In May, Luleå experiences a moderate precipitation level of 43 mm (1.7 in), with rainfall occurring over approximately 7 days. This slight uptick from April's 28 mm indicates a gradual transition into wetter conditions as the city embraces the flowering month. Following the trend, June typically sees an increase in moisture with 54 mm of rain, suggesting that late spring is a pivotal time for precipitation in Luleå. As the year progresses into the summer months, precipitation consistently rises, peaking in August with 76 mm (3.0 in). This pattern underscores a clear seasonal shift, highlighting the contrast between the relatively dry spring and the wetter summer months in northern Sweden.
In May, Luleå experiences a notable drop in humidity, registering at 81%—a refreshing transition from the winter months, which peak at an impressive 97% in January. As the spring unfolds, humidity levels gradually decline, reaching their lowest point in June at 78%. This decreasing trend hints at the arrival of milder and more comfortable conditions, making May an ideal month for outdoor activities. After the peak humidity of winter, the gentler atmosphere of late spring sets the stage for the vibrant greens of summer, while still retaining a hint of the moisture that characterizes Luleå's climate. Overall, May serves as a perfect bridge between the cooler, damp months and the warmer summer period.
As May rolls into Luleå, Sweden, residents can expect an UV Index of 4, signaling a moderate level of sun exposure risk. This trend mirrors April's conditions, maintaining a burn time of just 30 minutes before the sun's rays can cause skin damage. It’s a notable step up from the earlier months, where the index remained low at 1-2, making this spring month the perfect time to enjoy outdoor activities, while also being mindful of sun protection. With the increasing warmth and daylight, it's essential to stay aware of rising UV levels, as June swiftly approaches with a higher index of 6. Embrace the beauty of May while being sun-smart! For more information, visit Lulea UV Index.
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As the snow melts away and spring blooms fully in Luleå, Sweden, May heralds an impressive surge in sunshine, with 468 hours lighting up the month. This marks a significant leap from 372 hours in April, reflecting the gradual yet triumphant return of longer, brighter days. The days become noticeably longer as Luleå transitions into summer, eventually peaking in June with 522 hours of sunlight. This uplifting progression emphasizes the shift from the cold and dim winter months, where January sees only 36 hours of sunshine, and November struggles with just 94 hours. May not only represents a peak in daylight but also embodies the promise of the vibrant summer days that lie ahead, making it a cherished time for residents and visitors alike.
In Luleå, Sweden, the likelihood of sunny weather in May sees a moderate chance of approximately 32%, marking a dip from the preceding month of April, which enjoys a higher 46% probability of sunshine. This reduction in sunny days is notable, especially as the sun begins to make its presence felt more consistently in the early summer months like June and July, where the chances rise significantly to 46% and 58%, respectively. May stands at an intriguing intersection, caught between the lingering coolness of spring and the brighter, warmer days of summer, highlighting its transitional nature. While it's not the sunniest month, it certainly holds the promise of emerging warmth, making it a delightful time for outdoor enthusiasts to embrace the changing season.
As spring transitions into summer in Lulea, Sweden, daylight hours increase dramatically, culminating in a remarkable 19 hours of sunlight in May. This month marks a pivotal point in the year, where the embrace of longer days begins to overshadow the preceding winter's darkness. After a gradual rise from a mere 4 hours in January to 15 hours in April, May reflects the robust arrival of light, paving the way for even longer days in June, where sunshine reigns for 22 hours. Following this peak, daylight begins to gently wane, offering 20 hours in July and gradually decreasing to 16 hours in August. This pattern showcases a compelling rhythm of light that influences not only the natural environment but also the lifestyle of Lulea's residents, fostering a vibrant sense of community and outdoor activity during the brighter months.
In May, Luleå, Sweden experiences a mild decline in wind speed, averaging 4.6 m/s (10 mph), slightly lower than the preceding months of March and April, which reflected more robust breezes at 5.6 m/s and 4.9 m/s, respectively. Notably, May’s gentle winds offer a refreshing contrast as spring takes full bloom, contributing to an atmosphere that's both peaceful and invigorating. As summer approaches, June continues this trend with an even softer average of 4.5 m/s (10 mph), suggesting a gradual easing in wind strength. This seasonal pattern reveals a subtle, yet consistent, reduction in wind speed leading into summer, creating ideal conditions for outdoor activities and exploration in this picturesque Northern town.
Weather in Lulea varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Lulea, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather begins to warm up with temperatures ranging from a brisk minimum of -2°C (28°F) to a comfortable maximum of 18°C (65°F), averaging around 5°C (42°F). The month sees about 43 mm (1.7 in) of precipitation over 7 days, with a humidity level at 81%. In contrast, January brings much harsher conditions, with temperatures dropping as low as -22°C (-7°F) and averaging -6°C (22°F), peaking at just 6°C (43°F). Precipitation in January measures 53 mm (2.1 in) across 11 days, paired with a high humidity of 97%, contributing to a colder and damp atmosphere. For more details on January's weather, check out Lulea weather in January.
Comparing the weather between May and February reveals stark contrasts in both temperature and humidity. In May, temperatures range from a chilly minimum of -2°C (28°F) to a more comfortable maximum of 18°C (65°F), with an average of 5°C (42°F). The humidity sits at a relatively high 81%, and there is about 43 mm (1.7 in) of precipitation over 7 days. In contrast, February is significantly colder, with temperatures dropping to a minimum of -20°C (-4°F) and peaking at a mild 6°C (43°F), leading to an average of -7°C (19°F). Even though February experiences slightly less precipitation at 40 mm (1.6 in) over 7 days, the humidity is higher at 95%. For more detailed insights, you can refer to Lulea weather in February.
In comparing the weather of March and May, it's clear that May offers a much milder climate. While March sees average temperatures hovering around -4°C (25°F) with nighttime lows dipping to -17°C (2°F), May warms up significantly, boasting an average of 5°C (42°F) and reaching highs of 18°C (65°F).
Precipitation levels are similar in both months, with March receiving 42 mm (1.7 in) over 9 days, while May has 43 mm (1.7 in) spread across 7 days. However, May's humidity of 81% is slightly lower than March's 90%, contributing to a more comfortable atmosphere as spring arrives. For a deeper look into March weather specifics, you can visit Lulea weather in March.
In comparing the weather between April and May, it's evident that May brings a noticeable improvement in temperatures. While April experiences a minimum of -11°C (13°F) and an average of 0°C (32°F), May sees a higher minimum temperature of -2°C (28°F) and an average of 5°C (42°F). Additionally, May reaches a maximum of 18°C (65°F), considerably warmer than April's maximum of 11°C (53°F). Precipitation levels are also higher in May, with 43 mm (1.7 in) falling over 7 days compared to April's 28 mm (1.1 in) over 5 days. Although May is slightly more humid at 81% relative to April's 84%, the overall temperate rise in May signals the arrival of spring. For more details on April weather specifically, you can visit Lulea weather in April.
May and June present a notable contrast in weather conditions. In May, temperatures range from a chilly minimum of -2°C (28°F) to a maximum of 18°C (65°F), averaging around 5°C (42°F). The month sees approximately 43 mm (1.7 in) of precipitation over seven days, contributing to a high humidity level of 81%. In comparison, June experiences a more moderate climate, with temperatures ranging from a minimum of 3°C (38°F) to a pleasant maximum of 24°C (75°F), averaging 13°C (55°F). Although June has slightly higher total precipitation at 54 mm (2.1 in) over six days, humidity levels are a bit lower at 78%. For more detailed insights on weather patterns, you can check Lulea weather in June.
May and July present quite different weather patterns. In May, temperatures range from a chilly -2°C (28°F) at night to a mild 18°C (65°F) during the day, with an average temperature of 5°C (42°F). The month sees a total precipitation of 43 mm (1.7 in) spread over approximately 7 days, accompanied by a relatively high humidity level of 81%.
In contrast, July offers a much warmer climate, with minimum temperatures rising to 8°C (46°F) and maximum temperatures reaching 26°C (78°F), resulting in an average of 16°C (62°F). Additionally, July experiences more rainfall, totaling 65 mm (2.6 in) over about 9 days, and humidity remains slightly elevated at 82%. For more detailed information, you can refer to Lulea weather in July.
May and August present distinct differences in weather, reflective of the transition from spring to summer. In May, temperatures range from a chilly minimum of -2°C (28°F) to a mild maximum of 18°C (65°F), with an average of 5°C (42°F). The month sees about 43 mm (1.7 in) of precipitation over 7 days, accompanied by relatively high humidity at 81%. In contrast, August features much warmer conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 25°C (78°F) and an average of 15°C (59°F). However, it is slightly wetter, receiving 76 mm (3.0 in) of rain over 12 days, and humidity edges higher at 84%. For more climatic details, you can check Lulea weather in August.
May and September in Luleå present distinct weather characteristics, marked by subtle shifts in temperature and precipitation. In May, the average temperature hovers around 5°C (42°F), with a minimum of -2°C (28°F) and a maximum of 18°C (65°F). The month sees approximately 43 mm (1.7 in) of precipitation over about 7 days, with a relatively moderate humidity level of 81%.
In contrast, September offers a slightly milder atmosphere, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 18°C (64°F) and an average of 11°C (51°F). However, this month experiences greater rainfall, totaling around 71 mm (2.8 in) across 11 days, accompanied by a higher humidity level of 88%. For a detailed overview of the weather patterns in September, you can refer to Lulea weather in September.
In comparing the weather between May and October, we can observe distinct differences in temperature and precipitation. May typically features milder conditions, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 18°C (65°F), while October experiences cooler temperatures, with lows dropping to -6°C (22°F) and a high of only 14°C (58°F).
Additionally, May sees relatively moderate precipitation of 43 mm (1.7 in) over about 7 days, whereas October is notably wetter, receiving 100 mm (3.9 in) of rainfall across approximately 15 days. The humidity also rises in October, averaging around 92%, compared to May’s 81%. These shifts indicate a transition into the colder and wetter months as the year progresses. For more detailed information, you can check the Lulea weather in October.
May and November present quite a contrast in weather conditions. In May, the temperatures range from a chilly -2°C (28°F) at night to a mild 18°C (65°F) during the day, with an average of 5°C (42°F). The month sees about 43 mm (1.7 in) of precipitation over approximately 7 days, accompanied by a relatively high humidity of 81%. In stark contrast, November experiences much colder temperatures, with nighttime lows plunging to -14°C (8°F) and daytime highs only reaching 10°C (49°F), averaging around 0°C (33°F). This month tends to be wetter, with 62 mm (2.4 in) of precipitation spread over about 12 days, and humidity peaks at a notable 93%. For additional details on November weather, you can check out Lulea weather in November.
In May, the weather begins to warm up, with temperatures ranging from a chilly -2°C (28°F) at night to a pleasant 18°C (65°F) during the day, and an average of 5°C (42°F). Precipitation is relatively low at 43 mm (1.7 in), falling over about 7 days, and humidity sits at 81%. In stark contrast, December brings much colder conditions, with temperatures dropping to a minimum of -17°C (2°F) and averaging -3°C (27°F). The maximum temperature only reaches 5°C (41°F), while precipitation significantly increases to 72 mm (2.8 in) spread across 17 days, coupled with a high humidity of 96%. For more detailed insights into what to expect in the winter, check out Lulea weather in December.
As spring fully blossoms in May, Luleå experiences a significant transition, with temperatures rising noticeably compared to the biting cold of winter. With maximums reaching up to 18°C (65°F), the month welcomes warmer days that invite outdoor activities, although the average still hovers around a crisp 5°C (42°F). The precipitation, averaging just 43 mm over about seven days, is a gentle reminder of the lingering chill, while the high humidity level of 81% often adds to a refreshing atmosphere. Overall, May stands out as a balance of warmth and the final traces of springtime's coolness, making it an inviting time to explore the beauty of Luleå. For a deeper understanding of the weather patterns, visit Lulea Climate.