Last updated: August 27, 2025
In May, Norrtälje, Sweden experiences a refreshing transition into spring, with temperatures ranging from a maximum of 25°C (78°F) to a minimum of -2°C (29°F). The average temperature settles at a comfortable 9°C (49°F), making it an ideal time for outdoor activities. While the month brings a total precipitation amount of 48 mm (1.9 in) over 9 days, the lush greenery it fosters is well worth the occasional rain. With an average humidity of 77%, the air feels invigorating, enveloping residents and visitors in a crisp, vibrant atmosphere that celebrates the beauty of spring in this charming Swedish locale.
In Norrtaelje, Sweden, May marks a delightful transition into spring, with temperatures reflecting a significant warming trend compared to the chilly months preceding it. The minimum temperature hovers around -2°C (29°F), showing a welcome increase from the frosty depths of winter. The average temperature rises to 9°C (49°F), inviting residents and visitors alike to enjoy the blooming landscapes. As the month progresses, the maximum temperature can soar to a pleasant 25°C (78°F), perfect for outdoor activities and soaking up the sun. This leap into warmth not only signals the end of icy days but also ignites the spirit of renewal that spring embodies in this charming Swedish town.
May in Norrtälje marks a noticeable increase in precipitation, with 48 mm (1.9 in) of rain falling over 9 wet days. This uptick follows a relatively dry April, which recorded just 26 mm (1.0 in), and sets the stage for the even more drizzly months ahead in summer. The trend indicates a shift as spring gives way to warmer weather, typically bringing an average of 10 days of rainfall from June onward. Interestingly, May serves as a balancing point in the yearly precipitation cycle, sandwiched between lighter spring showers and the more intense summer downpours of July and August, which see averages of 61 mm (2.4 in) and 62 mm (2.4 in) respectively. As flowers bloom and the landscape flourishes, May's rain not only revitalizes the environment but also hints at the livelier weather patterns that lie ahead.
In May, Norrtälje experiences a noticeable shift in humidity levels, dropping to 77%, which reflects the transition into warmer months. This decrease continues a trend from the earlier spring months, where humidity was higher, peaking at 90% in January and remaining significantly elevated until April. As summer approaches, the humidity levels dip further in June and July, reaching their lowest point at 74% in July before gradually rising again in late summer. This pattern showcases Norrtälje's unique climate, balancing between breezy conditions in the warmer seasons and the more muggy atmosphere typical of winter months.
As spring transitions into summer in Norrtaelje, Sweden, the UV Index shows a notable increase, particularly in May where it reaches a moderate level of 5. This uptick in UV radiation suggests that burn time becomes more critical, dropping to 30 minutes for those with lighter skin types. Compared to the preceding months, where the index started at a low 1 in January and February and gradually rose to 4 in April, May signals a distinct shift as outdoor enthusiasts prepare for sunnier days ahead. It’s essential to stay vigilant during this time, as the sun’s intensity will only increase in June and July. For more insights on the UV Index throughout the year, visit Norrtaelje UV Index.
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In Norrtälje, Sweden, May shines brightly with an impressive 453 hours of sunshine, marking a high point in the annual cycle. This increase is part of a broader trend where the days gradually lengthen from the dark depths of winter, with sunlight hours climbing steadily from just 69 hours in January to 368 hours in April. As summer approaches, the shine reaches its peak in July at 490 hours, but May stands out as a beautiful transitional month. The month not only welcomes longer days but also acts as a vibrant prelude to the sun-drenched summer ahead. Following May, sunshine hours do begin to taper off, but the warmth and light felt in this month linger in the hearts of residents as they transition into the sunny season.
In Norrtälje, Sweden, May presents a mixed bag for those hoping for sunny weather, with a 30% chance of sunshine. This figure marks a slight decline from April's more promising 48%, showcasing the transitional nature of spring as it edges towards the summer months. The likelihood of sunny days in May, while still respectable, is outpaced by the increasing brightness of June and July, which average 52% and 57% respectively. The shift from early spring's cooler weather to the warmth of late spring is reflected in the fluctuating percentages, leaving May somewhat in the middle ground – a reminder that while sunshine is on the rise, it still requires patience.
In Norrtälje, Sweden, daylight duration experiences a remarkable transformation as the year progresses. Starting from a modest 6 hours in January, the days gradually lengthen, culminating in a vibrant 17 hours of daylight by May. This upward trend reflects the arrival of spring, where daylight increases significantly, allowing residents to bask in 14 hours of sunshine by April. As summer approaches in June, daylight peaks at an impressive 18 hours, providing ample opportunity for outdoor activities. However, following the height of summer, the trend shifts again, with daylight gradually tapering off, leading to shorter days in the fall and winter months. This seasonal rhythm not only influences the natural landscape but also the lifestyle of those who call this picturesque town home.
In Norrtälje, Sweden, the month of May brings a noticeable dip in wind speed, averaging just 3.4 m/s (8 mph)—a gentle shift from the stronger breezes felt in the earlier months like March, which sees an uptick at 4.8 m/s (11 mph). This decrease reflects a trend where the wind tends to calm as spring approaches its end, ushering in the milder summer months. Contrasting with March and April's moderate winds, May's softer breezes create a serene atmosphere, perfect for outdoor activities and embracing the blossoming surroundings. As the region transitions into summer in June, wind speeds further diminish to 3.1 m/s (7 mph), indicating a pattern of decreased wind that characterizes this part of the year, providing locals and visitors alike with a tranquil experience amidst Sweden's enchanting natural beauty.
Weather in Norrtaelje varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Norrtaelje, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present stark contrasts in weather conditions. In May, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 25°C (78°F), with an average of 9°C (49°F). The month enjoys moderate precipitation of 48 mm (1.9 in) spread over 9 days and a humidity level of 77%. In comparison, January is much colder, with temperatures dipping as low as -14°C (7°F) and peaking at only 9°C (49°F), averaging around 0°C (32°F). Despite slightly lower precipitation of 39 mm (1.5 in) over 10 days, January has a higher humidity level of 90%. For a detailed breakdown of January's weather, you can refer to this link: Norrtaelje weather in January.
The weather in May is notably milder compared to February, with temperatures ranging from a minimum of -2°C (29°F) to a pleasant average of 9°C (49°F), peaking at 25°C (78°F). In contrast, February is much colder, with temperatures dropping to a minimum of -14°C (7°F) and averaging around -1°C (31°F), with a maximum of only 9°C (49°F). While both months experience precipitation over nine days, May sees slightly higher rainfall at 48 mm (1.9 in) compared to February's 35 mm (1.4 in), though February brings with it higher humidity at 88%, compared to May's 77%. For a closer look at February weather patterns, you can check Norrtaelje weather in February.
Comparing the weather in May and March reveals a notable shift in conditions. In March, temperatures range from a chilly minimum of -13°C (9°F) to a maximum of 17°C (62°F), with an average of just 1°C (35°F) and relatively high humidity at 89%. Precipitation is moderate, totaling 40 mm (1.6 in) over about 7 days. In contrast, May offers a much milder climate, with temperatures ranging from a low of -2°C (29°F) to a pleasant high of 25°C (78°F), resulting in a more comfortable average of 9°C (49°F). While May does see slightly more precipitation at 48 mm (1.9 in) over 9 days, the overall experience is more favorable as humidity decreases to 77%. For more details on the March weather conditions, you can check Norrtaelje weather in March.
In April, temperatures are generally cooler, with a minimum of -10°C (15°F) and an average around 4°C (40°F), peaking at 20°C (69°F). The month experiences about 26 mm (1.0 in) of precipitation over 7 days and boasts a humidity level of 85%. In contrast, May shows a marked warming trend, with a minimum temperature of -2°C (29°F) and an average of 9°C (49°F), reaching a maximum of 25°C (78°F). Precipitation increases to 48 mm (1.9 in) over 9 days, while humidity slightly decreases to 77%. For a deeper look at April's conditions, check out Norrtaelje weather in April.
In May, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 25°C (78°F), giving an average temperature of 9°C (49°F). This month experiences 48 mm (1.9 in) of precipitation over about 9 days, contributing to a relatively humid environment with a humidity level of 77%. In contrast, June brings milder weather, with temperatures starting at a minimum of 5°C (41°F) and reaching a maximum of 28°C (82°F), resulting in a much warmer average of 16°C (60°F). June sees slightly less rainfall at 42 mm (1.7 in) over 7 days, with humidity remaining comparable at 76%. For more detailed insights, you can check out Norrtaelje weather in June.
May and July present quite different weather patterns. In May, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 25°C (78°F), with an average temperature of 9°C (49°F). This month also sees about 48 mm (1.9 in) of precipitation, occurring over 9 days and accompanied by a relatively high humidity of 77%.
In contrast, July experiences milder weather with minimum temperatures around 8°C (47°F) and a higher average of 17°C (64°F), peaking at 30°C (86°F). Although July has slightly more precipitation at 61 mm (2.4 in) across 10 days, the humidity is slightly lower at 74%. For a more detailed look at July's weather, you can visit Norrtaelje weather in July.
May and August present distinct weather patterns. In May, temperatures range from a chilly minimum of -2°C (29°F) to a more comfortable maximum of 25°C (78°F), with an average of 9°C (49°F). The month sees about 48 mm (1.9 in) of precipitation spread over 9 days, with humidity hovering at 77%. In contrast, August offers warmer temperatures, with a minimum of 6°C (44°F) and a maximum reaching 28°C (82°F), leading to an average of 17°C (63°F). Rainfall is slightly more in August at 62 mm (2.4 in) over 12 days, while humidity remains consistent at 77%. For more specific details on weather in August, refer to Norrtaelje weather in August.
In May, temperatures begin to rise, with minimums as low as -2°C (29°F) and averaging around 9°C (49°F), peaking at a comfortable 25°C (78°F). The month sees about 48 mm (1.9 in) of precipitation over 9 days, accompanied by a humidity level of 77%. In contrast, September marks the transition to cooler weather, with minimum temperatures starting at 2°C (35°F) and averaging 13°C (55°F), reaching a maximum of 22°C (73°F). Precipitation remains similar at 47 mm (1.8 in) over the same number of days, but humidity increases to 85%. For more detailed weather information, you can visit Norrtaelje weather in September.
In comparing the weather between May and October, we observe some distinct differences. May features a broader range of temperatures, with lows dipping to -2°C (29°F) and highs reaching up to 25°C (78°F), resulting in an average of 9°C (49°F). Precipitation is relatively moderate at 48 mm (1.9 in) across 9 days, with a humidity level of 77%. In contrast, October sees cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 17°C (63°F), leading to an average of 8°C (47°F). The month is also wetter, with 72 mm (2.8 in) of rain spread over 13 days, and humidity increases to 89%. For a detailed look at the weather patterns during this time, check out Norrtaelje weather in October.
May and November showcase distinct differences in weather patterns. In May, temperatures swing from a chilly -2°C (29°F) at night to a pleasant average of 9°C (49°F), reaching a maximum of 25°C (78°F) during the day. The month sees moderate precipitation of 48 mm (1.9 in) over about 9 days, with humidity levels at 77%. In contrast, November experiences colder conditions, with nighttime temperatures dropping to a minimum of -8°C (19°F) and an average of 5°C (41°F), peaking at only 14°C (57°F). Precipitation is slightly lower at 44 mm (1.7 in) over 10 days, and humidity is higher at 90%. These differences highlight the transition from the milder spring weather of May to the chill of late autumn. For more insights on November's weather, check Norrtaelje weather in November.
In May, the weather showcases a pleasant range with temperatures fluctuating from a minimum of -2°C (29°F) to a maximum of 25°C (78°F), averaging around 9°C (49°F). The month experiences moderate precipitation of 48 mm (1.9 in) over approximately 9 days, accompanied by an average humidity of 77%. In contrast, December brings much colder conditions, with temperatures dipping as low as -12°C (11°F) and peaking at just 9°C (49°F), averaging only 1°C (34°F). This month sees increased precipitation at 65 mm (2.6 in), spread across about 14 days, along with higher humidity levels at 87%. For a more detailed look at December weather in the area, check out Norrtaelje weather in December.
As May arrives in Norrtälje, the weather ushers in a delightful transformation from the colder months, showcasing a significant rise in temperatures that makes outdoor activities more enjoyable. With maximum highs reaching up to 25°C (78°F), it’s a sharp contrast to the lingering chill of early spring. However, the month also sees an increase in humidity at 77%, and nearly a third of May experiences rainfall, with 48 mm of precipitation spread over nine days. This blend of warmth and moisture not only refreshes the landscape but also sets the stage for vibrant spring blooms, making May a refreshing prelude to summer. For a deeper dive into weather patterns, visit Norrtaelje Climate.