May Weather in Lysekil, Sweden

Last updated: August 27, 2025

In Lysekil, Sweden, May brings a delightful mix of temperatures, ranging from a maximum of 28°C (83°F) to a refreshing minimum of 1°C (34°F), with an average temperature of 11°C (53°F). Despite the mild warmth, residents and visitors can expect 60 mm (2.4 in) of precipitation spread over approximately 11 days, contributing to the area's lush greenery. The humidity level at 73% adds a touch of freshness to the coastal environment, making May an invigorating time to experience the natural beauty and charm of this picturesque town.

May Temperature in Lysekil

In May, Lysekil, Sweden, begins to blossom into warmth, showcasing a significant shift in temperatures as spring transitions into summer. With a minimum of 1°C (34°F) and a delightful average of 11°C (53°F), the town bids farewell to the lingering chill of winter. The maximum temperature can soar to 28°C (83°F), providing perfect conditions for outdoor activities and exploration. This month not only marks the arrival of milder days, but it also highlights a notable ascent from the cooler averages of earlier months, such as April, further emphasizing the invigorating embrace of the season. As nature awakens and the days grow longer, May is undoubtedly a charming prelude to the vibrant summer ahead.

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

The chart illustrates May temperature patterns in Lysekil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lysekil, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363538445261646257504337
Data source: Temperature data for Lysekil generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Lysekil

In May, Lysekil experiences a notable increase in precipitation, with an overall measurement of 60 mm (2.4 in) spread across 11 rainy days. This level of rainfall marks a return to a wetter pattern after the relatively dry month of April, which recorded only 34 mm (1.4 in). Interestingly, May's rainfall prepares the landscape for the upcoming lushness of summer, showcasing a significant uptick compared to the earlier spring months. The weather pattern hints at a transition, as precipitation begins to build towards the heavier rains of July and August, reinforcing the cyclical nature of Lysekil's climate.

May Precipitation Trends in Lysekil

The chart displays monthly precipitation patterns in Lysekil, 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 Lysekil, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec587067346066791041051219180
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lysekil

In May, Lysekil, Sweden, experiences a noticeable shift in humidity, dropping to 73% from the higher levels of previous months. This transition marks the beginning of a drier trend leading into summer, contrasting sharply with the 94% humidity typical of January. As temperatures warm up, the air feels less saturated, creating a more comfortable atmosphere for outdoor activities. This reduction in humidity continues through June, while July and August see a slight uptick, reflecting a typical mid-summer pattern. By September, however, humidity begins to rise again, suggesting the inevitable return to the wetter conditions characteristic of the autumn months. Overall, May serves as a pivotal point in Lysekil's climatic cycle, bridging the transition from the chilly, damp winter to the warmer, breezier summer months.

May Average Humidity in Lysekil

This chart illustrates the average monthly humidity levels in Lysekil, 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 Lysekil is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lysekil

In May, Lysekil experiences a noticeable shift in its UV Index, rising to 6, categorized as high. This marks a significant increase from the more moderate levels seen in the earlier months. As summer approaches, the burn time decreases to just 25 minutes, emphasizing the need for sun protection during outdoor activities. This trend continues into June and July, where the UV Index reaches a peak of 7, reinforcing the importance of skin safety as the days grow longer and sunnier. As UV levels fluctuate throughout the year, understanding these changes is crucial for enjoying the sunshine responsibly. For detailed insights, check the Lysekil UV Index.

Maximum UV Index Levels in Lysekil for May

The chart shows the monthly maximum UV Index (UVI) for Lysekil 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 Lysekil typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Lysekil 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 Lysekil

May in Lysekil, Sweden unveils a delightful surge in sunshine, boasting an impressive 442 hours of radiant daylight. This remarkable increase follows a steady ascent from January's modest 91 hours and reflects a joyous transition from the winter months. As spring peaks, May's abundant light not only brightens the landscape but also invigorates the spirit, setting the stage for the sun-drenched days of June and July, which see even more sunshine at 470 and 477 hours respectively. The gradual lengthening of days from the earlier months showcases the region's shift towards vibrant summer, inviting locals and visitors alike to bask in the warmth and embrace the outdoor adventures that abound.

Monthly Sunshine Duration in Lysekil: May Highlighted

The May sunshine duration represents the total number of hours Lysekil 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.
JanFebMarAprMayJunJulAugSepOctNovDec91h176h281h379h442h470h477h412h307h246h140h102h
Data source: Lysekil May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lysekil During May

In Lysekil, Sweden, the likelihood of sunny weather experiences distinct fluctuations throughout the year. As spring blooms, April marks a peak with a 58% chance of sunshine, creating a warm and inviting atmosphere for outdoor activities. However, as May arrives, this figure dips to 31%, presenting a notable contrast that suggests a gradual retraction of sunny days as summer approaches. Following May, June sees a rebound in sunshine with a 46% chance, indicating a trend of improving weather as the year progresses. This highlights the unique transitional phase of spring in Lysekil, where May offers a mix of sunny spells and overcast days, making it a month of unpredictable charm.

Percentage of Sunny Days in May in Lysekil

The chart illustrates the percentage of sunny days in Lysekil 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 Lysekil experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%36%42%58%32%46%44%44%30%27%24%29%
Data source: Lysekil May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lysekil in May

In Lysekil, Sweden, the transition into summer is marked by a significant increase in daylight hours, reaching an impressive 16 hours in May. This month serves as a bridge between the awakening of spring and the lushness of summer, with daylight growing from 14 hours in April. Following a gradual ascent from the 7 hours of winter in January, February and March bring incremental increases, with daylight extending to 11 hours by March's end. As June rolls in, the sun graces the coastline with an astonishing 18 hours of daylight, creating an idyllic atmosphere for outdoor activities. However, this abundance begins to wane, with daylight slowly decreasing through the summer months and into autumn, reflecting the cyclical nature of the seasons and the charming rhythm of life in Lysekil.

Average Daylight Hours in Lysekil for May

The chart illustrates the variation in daylight duration in Lysekil throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 12m9h 21m11h 52m14h 27m16h 48m18h 7m17h 24m15h 15m12h 44m10h 11m7h 49m6h 29m
Data source: Lysekil daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Lysekil

In Lysekil, Sweden, the month of May reveals a shift in wind dynamics, with an average wind speed of 3.7 m/s (8 mph), marking a noticeable dip compared to the preceding months. Following a gradual increase through winter and early spring, where wind speeds hovered around 4.2 to 4.8 m/s, May's gentler breezes bring a tranquil charm to the coastal atmosphere. This trend continues into the summer months, as both July and August also record similar average wind speeds of 3.7 m/s and 3.9 m/s, suggesting a calmness that contrasts with the brisker winds of late autumn and early winter. Overall, May represents a transition into a more serene warm season, inviting residents and visitors alike to enjoy the refreshing coastal air at a leisurely pace.

Average May Wind Speed in Lysekil

The chart displays monthly wind speed patterns in Lysekil, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.74.74.83.7 m/s4.03.73.94.25.75.14.6
Data source: Lysekil May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Lysekil Compares to Other Months

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

May and January present starkly contrasting weather conditions. In May, temperatures range from a mild 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average temperature of 11°C (53°F). This month sees about 60 mm (2.4 in) of precipitation over approximately 11 days and a humidity level of 73%, marking it as a transition into warmer spring weather. Conversely, January is characterized by much colder temperatures, with nighttime lows plunging to -11°C (12°F) and daytime highs only reaching 9°C (49°F), averaging at 2°C (36°F). Although precipitation is slightly lower at 58 mm (2.3 in) over 10 days, humidity is notably higher at 94%, contributing to a damp chill in the air. For more detailed insights, check out Lysekil weather in January.

In comparing the weather between May and February, one can observe significant differences in temperature and conditions. May features a mild temperature range with a minimum of 1°C (34°F) and a maximum of 28°C (83°F), while February is much colder, starting with a minimum of -14°C (8°F) and only reaching a high of 11°C (51°F). Additionally, May experiences an average temperature of 11°C (53°F) and is generally less humid at 73%, compared to February, which has a high humidity level of 92%. Precipitation is somewhat comparable, with May receiving 60 mm (2.4 in) and February slightly more at 70 mm (2.7 in), both spread over 11 days. For a more detailed look at February weather, you can check out Lysekil weather in February.

When comparing the weather in May and March, it's clear that May offers a more temperate and enjoyable climate. In March, temperatures can drop as low as -12°C (11°F), with an average of only 3°C (38°F), while May sees a more comfortable range, with minimum temperatures around 1°C (34°F) and averages rising to 11°C (53°F). However, March experiences slightly higher humidity at 89%, compared to May's 73%, which contributes to a brisk chill. Additionally, while both months have rainfall on approximately 11 days, May's total precipitation of 60 mm (2.4 in) is a bit less than March's 67 mm (2.6 in). For more details about March weather, you can visit Lysekil weather in March. Overall, May emerges as the more inviting month for outdoor activities.

In comparing the weather between April and May, we see a notable transition as spring progresses. While April experiences cooler temperatures with a minimum of -3°C (26°F) and an average of 7°C (44°F), May brings a significant increase, featuring a minimum of 1°C (34°F) and an average of 11°C (53°F). The maximum temperatures also rise dramatically, from April's peak of 20°C (68°F) to May's maximum of 28°C (83°F). Precipitation in May totals 60 mm (2.4 in) over 11 days, which is considerably higher than April's 34 mm (1.4 in) over just 7 days. The humidity levels remain relatively high, with April at 82% and May at 73%. For a detailed look at April's weather in Lysekil, you can visit Lysekil weather in April.

May and June weather exhibit a clear transition as summer approaches. In May, temperatures range from a cool 1°C (34°F) at night to a pleasant 28°C (83°F) during the day, averaging around 11°C (53°F). The month sees about 60 mm (2.4 in) of precipitation spread over 11 days, along with humidity levels around 73%. By June, temperatures rise more significantly, with minimums starting at 8°C (47°F) and averaging 16°C (61°F) while still peaking at 28°C (83°F). Precipitation increases slightly to 66 mm (2.6 in) over the same number of rainy days, with humidity dropping to 71%. This comparison highlights a warming trend and a slight increase in precipitation as the seasons change. For more specific details about weather patterns, you can check Lysekil weather in June.

In May, temperatures range from a chilly 1°C (34°F) at their lowest to a warm 28°C (83°F) at their peak, averaging around 11°C (53°F). The month sees approximately 60 mm (2.4 in) of precipitation over 11 days, with humidity levels around 73%. In contrast, July experiences milder minimum temperatures of 9°C (48°F) and a higher average of 18°C (64°F), with maximum temperatures reaching 30°C (86°F). Although July has more total precipitation at 79 mm (3.1 in) over 10 days, the humidity remains slightly lower at 72%. For more detailed information, check out Lysekil weather in July.

In May, the weather in Lysekil features a wide temperature range, with minimums around 1°C (34°F) and maximums reaching up to 28°C (83°F), averaging at 11°C (53°F). The month sees about 60 mm (2.4 in) of precipitation over approximately 11 days, coupled with a humidity level of 73%. In contrast, August experiences a milder climate with minimum temperatures of 8°C (47°F) and maximums hitting 30°C (87°F), averaging at 17°C (62°F). This month is wetter, yielding 104 mm (4.1 in) of rainfall spread over 15 days, and slightly higher humidity at 77%. For more detailed information, you can check Lysekil weather in August.

May typically experiences a broader temperature range, with minimums dropping to 1°C (34°F) and maximums reaching up to 28°C (83°F), resulting in an average temperature of 11°C (53°F). In contrast, September has milder temperatures, with a minimum of 3°C (38°F) and a maximum of 23°C (73°F), leading to an average of 14°C (57°F). Precipitation is also more prominent in September, with 105 mm (4.1 in) falling over approximately 15 days, compared to May’s 60 mm (2.4 in) over 11 days. Additionally, humidity levels are higher in September at 86%, compared to 73% in May, which contributes to the overall perception of the transitioning seasons. For more details about September weather, you can visit Lysekil weather in September.

May and October present contrasting weather patterns. In May, temperatures range from a minimum of 1°C (34°F) to a pleasant maximum of 28°C (83°F), with an average temperature of 11°C (53°F). The month experiences moderate precipitation, totaling 60 mm (2.4 in) over about 11 days, accompanied by a humidity level of 73%. In comparison, October sees a cooler climate, with temperatures dipping as low as -2°C (30°F), averaging around 10°C (50°F) and peaking at 19°C (66°F). This month is also significantly wetter, accumulating 120 mm (4.7 in) of rainfall across 17 days, and a higher humidity of 92%. To learn more about the unique weather characteristics of October, you can visit Lysekil weather in October.

May and November present contrasting weather experiences. In May, temperatures range from a chilly 1°C (34°F) at night to a pleasant 28°C (83°F) during the day, with an average of 11°C (53°F). The month sees about 60 mm (2.4 in) of precipitation over approximately 11 days, accompanied by a moderate humidity of 73%. In stark contrast, November brings colder temperatures, with nighttime lows dipping to -9°C (16°F) and daytime highs reaching only 15°C (59°F). The average temperature for November is around 6°C (43°F), and precipitation increases to 91 mm (3.6 in) across 15 days, along with higher humidity at 93%. For more details, you can check Lysekil weather in November.

May and December present stark contrasts in weather. In May, temperatures range from a cool 1°C (34°F) at night to a pleasant average of 11°C (53°F) during the day, peaking at 28°C (83°F). The month sees about 60 mm (2.4 in) of precipitation spread across 11 days, with a relatively moderate humidity level of 73%. In contrast, December experiences colder weather, with temperatures dipping to a minimum of -9°C (15°F) and averaging only 3°C (37°F), reaching a maximum of 10°C (51°F). The month is wetter, with 80 mm (3.2 in) of precipitation occurring over 16 days and a high humidity level of 93%. For more detailed insights into weather conditions, you can check Lysekil weather in December.

Compare Lysekil's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Lysekil

As May graces Lysekil, it ushers in a delightful transition from the chill of winter to the warmth of summer, showcasing a remarkable shift in weather patterns. With temperatures rising and more pleasant days emerging, the month stands out from its predecessors by offering a refreshing average that invites outdoor enthusiasts to explore the beautiful coastal landscape. Although occasional rain graces the scene—with about 11 days recording precipitation—the overall ambiance becomes increasingly vibrant, making May a noteworthy time for locals and visitors alike. To understand Lysekil's weather in more detail throughout the year, be sure to check out Lysekil Climate.