May Weather in Uddevalla, Sweden

Last updated: August 27, 2025

May in Uddevalla, Sweden offers a delightful mix of springtime warmth and refreshing showers. With daytime highs reaching 29°C (84°F), residents can bask in the sun, while evenings cool down to an average of 11°C (53°F). However, the month is not without its challenges, as precipitation totals 75 mm (3.0 in) over approximately 12 days, contributing to a humidity level of 73%. This blend of warm days and occasional rain creates a vibrant landscape, perfect for enjoying outdoor activities while appreciating the beauty of the region’s spring.

May Temperature in Uddevalla

In May, Uddevalla, Sweden experiences a remarkable transition into warmer weather, characterized by a minimum temperature of 0°C (31°F) and a pleasant average of 11°C (53°F). The mercury can even rise to a striking maximum of 29°C (84°F), bringing a taste of summer that contrasts sharply with the frigid winter months. This upward trend from the cooler temperatures of April emphasizes the city's shift towards milder conditions, with average temperatures climbing steadily as the season progresses. As the days lengthen and the sun shines brighter, May offers a refreshing escape, inviting both locals and visitors to enjoy the blossoming landscapes and outdoor activities that define this vibrant month.

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

The chart illustrates May temperature patterns in Uddevalla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uddevalla, 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).
JanFebMarAprMayJunJulAugSepOctNovDec343336445261636155484035
Data source: Temperature data for Uddevalla 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 Uddevalla

In May, Uddevalla experiences a notable increase in precipitation, with recorded rainfall of 75 mm (3.0 in) over 12 days. This marks a transition into a wetter season, as the rainfall surpasses that of April, which had only 39 mm over 7 days. This trend of increasing precipitation continues into June, suggesting that spring showers are not just a fleeting phenomenon but pave the way for the lushness of summer. The rising number of precipitative days in May indicates a more persistent pattern of rainfall, contributing to the vibrant landscape that characterizes this coastal town as it fully embraces the warmer months.

May Precipitation Trends in Uddevalla

The chart displays monthly precipitation patterns in Uddevalla, 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 Uddevalla, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec526968397576991191011037170
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Uddevalla

In May, Uddevalla experiences a noticeable shift in humidity, with levels dropping to 73%—a significant decrease from the preceding months. This decline marks a transition into the warmer season, as the city moves away from the high humidity typical of the winter months, where figures hover around 94% in January and 92% in February. As spring unfolds, humidity continues to decrease, paving the way for a drier June at 71%. This trend highlights a gradual easing of moisture in the air, allowing residents and visitors to enjoy the mild May weather with a refreshing breeze, contrasting sharply with the heavy, damp conditions of earlier months.

May Average Humidity in Uddevalla

This chart illustrates the average monthly humidity levels in Uddevalla, 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 Uddevalla 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 Uddevalla

As the spring sun strengthens, May in Uddevalla sees the UV Index rise to 6, categorizing it as high exposure, with a burn time of just 25 minutes for unprotected skin. This marks a notable shift from the previous months, where the index fluctuated between 1 and 4. As the days grow longer and warmer, residents and visitors alike should remain vigilant about sun safety, especially as June and July maintain similarly high levels. Embrace the sunshine, but don’t forget to protect your skin! For more details, check the Uddevalla UV Index.

Maximum UV Index Levels in Uddevalla for May

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

In Uddevalla, Sweden, the month of May shines with a remarkable 443 hours of sunlight, contributing to a delightful transition into summer. This surge in brightness is part of a broader upward trend, as the region emerges from the dim days of winter when January sees a mere 90 hours of sunlight. The gradual increase is striking, with March blossoming into 279 hours, and April experiencing a significant uptick to 378 hours. Following May, days continue to lengthen slightly into June and July, peaking at 479 hours in July before tapering off as autumn approaches. This seasonal rhythm highlights the allure of late spring and summer, inviting residents and visitors alike to relish the warmth and brightness during these vibrant months.

Monthly Sunshine Duration in Uddevalla: May Highlighted

The May sunshine duration represents the total number of hours Uddevalla 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.
JanFebMarAprMayJunJulAugSepOctNovDec90h175h279h378h443h470h479h411h306h245h137h98h
Data source: Uddevalla May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Uddevalla During May

In Uddevalla, Sweden, the likelihood of sunny weather sees a notable shift as the seasons change. While May boasts a 28% chance of sunshine, it represents a dip from the previous month's 51%. This fluctuation can be attributed to the lingering spring temperatures, which often bring variable conditions. Despite the lower probability in May, the sunshine chances are set to rise again in June at 44%, hinting at the arrival of summer warmth. Overall, May serves as a transitional period, offering glimpses of sunlight amid the unpredictability of spring weather.

Percentage of Sunny Days in May in Uddevalla

The chart illustrates the percentage of sunny days in Uddevalla 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 Uddevalla experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%32%38%51%28%44%39%37%27%26%22%26%
Data source: Uddevalla May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Uddevalla in May

In Uddevalla, Sweden, the arrival of May heralds a vibrant increase in daylight, extending to an impressive 16 hours by the end of the month. This marks a delightful transition from the 14 hours of daylight enjoyed in April, as the days continue to grow longer leading into the summer months. Following May, June reaches its zenith with 18 hours of sunshine, creating a radiant atmosphere perfect for outdoor activities. The trend shows a gradual descent in daylight hours from July onward, settling into a more gentle rhythm in the autumn with 12 hours in September, before tapering off again to 7 hours in November. Thus, May stands out as a month of bountiful light and a precursor to the sun-drenched days of summer.

Average Daylight Hours in Uddevalla for May

The chart illustrates the variation in daylight duration in Uddevalla throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 13m9h 21m11h 52m14h 26m16h 47m18h 6m17h 23m15h 14m12h 44m10h 11m7h 50m6h 30m
Data source: Uddevalla daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Uddevalla

In Uddevalla, Sweden, the month of May experiences a gentle breeze, with an average wind speed of 3.0 m/s (7 mph), slightly lower than the preceding months of March (3.6 m/s) and April (3.7 m/s). This decline marks a transition into the summer months, as winds typically begin to ease after a more blustery spring. However, May's winds remain consistent with the overall spring pattern, presenting the calm before the seasonal shift. As the year progresses into the warmer months, the wind speeds fluctuate, but May's tranquil air invites a sense of serenity, perfect for enjoying the burgeoning greenery and outdoor activities in this picturesque coastal town.

Average May Wind Speed in Uddevalla

The chart displays monthly wind speed patterns in Uddevalla, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.53.63.73.0 m/s3.22.93.03.24.13.63.2
Data source: Uddevalla May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Uddevalla Compares to Other Months

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

May and January present vastly different weather patterns. In May, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 29°C (84°F), with an average around 11°C (53°F). The month sees about 75 mm (3.0 in) of precipitation over approximately 12 days, and humidity levels are moderate at 73%. In contrast, January is considerably colder, with temperatures dipping as low as -13°C (8°F) and peaking at only 9°C (49°F), averaging just 1°C (34°F). This winter month experiences less precipitation, around 52 mm (2.0 in) over 9 days, but comes with higher humidity of 94%. For more specific details, check out Uddevalla weather in January.

When comparing the weather in May and February, significant differences in temperature and conditions are evident. May enjoys a much milder climate, with average temperatures ranging from a minimum of 0°C (31°F) to a maximum of 29°C (84°F) and an average of 11°C (53°F). In contrast, February experiences much colder weather, with average temperatures plummeting to a minimum of -19°C (-2°F) and a maximum of only 14°C (57°F), averaging around 0°C (33°F). Precipitation in May is slightly higher at 75 mm (3.0 in) over 12 days, compared to February's 69 mm (2.7 in) over 10 days. Furthermore, humidity levels are higher in February at 92%, while May has a more comfortable 73%. For a detailed look at February's climate, you can visit Uddevalla weather in February.

May and March exhibit quite a contrast in weather patterns. In May, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 29°C (84°F), with an average of 11°C (53°F). The month sees about 75 mm (3.0 in) of precipitation over 12 days, while the humidity hovers around 73%. Conversely, March is significantly colder, featuring temperatures that swing from a frigid -14°C (7°F) to a maximum of just 14°C (58°F), with an average temperature of 2°C (37°F). Although March has slightly lower precipitation at 68 mm (2.7 in) over 11 days, it tends to be more humid, with levels reaching 89%. For a closer look at the specifics in Uddevalla, check out Uddevalla weather in March.

In comparing the weather between April and May, we see a notable shift in temperatures and overall conditions. May offers a broader temperature range, with minimums of 0°C (31°F) and maximums reaching 29°C (84°F), presenting a significant improvement over April's cooler average of 6°C (44°F) and maximums of 21°C (71°F). Additionally, May experiences increased precipitation, totaling 75 mm (3.0 in) over 12 days, compared to April's 39 mm (1.5 in) over just 7 days. Humidity levels also differ slightly, with April being a touch more humid at 82%, while May has an average humidity of 73%. For more detailed information about April weather, visit Uddevalla weather in April.

In comparing the weather between May and June, it's evident that June experiences a mild increase in overall warmth. While May sees average temperatures ranging from a chilly 0°C (31°F) at night to a comfortable 29°C (84°F) during the day, June presents a more balanced range with minimum temperatures rising to 5°C (42°F) and a peak of 31°C (88°F). Both months receive similar amounts of precipitation, with just 1 mm (0.04 in) difference—May receiving 75 mm (3.0 in) over 12 days, and June totalling 76 mm (3.0 in) over 10 days. Humidity levels slightly decrease from 73% in May to 71% in June, suggesting a marginally drier feel as summer approaches. For more information, you can check Uddevalla weather in June.

May and July present distinct weather patterns, showcasing the transition from spring to summer. In May, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 29°C (84°F), with an average of 11°C (53°F). The month experiences moderate precipitation, totaling 75 mm (3.0 in) over about 12 days, and humidity levels are relatively high at 73%. In contrast, July sees warmer conditions, with temperatures varying from a minimum of 7°C (45°F) to a peak of 33°C (92°F) and an average of 17°C (64°F). While July also experiences more rainfall, accumulating 99 mm (3.9 in) over 13 days, it maintains a slightly lower humidity level at 72%. For more detailed information, you can check Uddevalla weather in July.

May and August present distinct weather characteristics. In May, temperatures can range from a low of 0°C (31°F) to a high of 29°C (84°F), with an average of 11°C (53°F). This month typically sees 75 mm (3.0 in) of precipitation over about 12 days, accompanied by a humidity level of 73%. In contrast, August is warmer, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 33°C (91°F) and an average of 16°C (61°F). Precipitation rises to 119 mm (4.7 in) over 16 days, and humidity slightly increases to 77%. For more detailed information about August weather, you can visit Uddevalla weather in August.

May and September present distinct weather characteristics that reflect the transition from spring to autumn. In May, temperatures range from a chilly 0°C (31°F) to a warm 29°C (84°F), with an average of 11°C (53°F). The month experiences about 75 mm (3.0 in) of precipitation over approximately 12 days, and humidity levels sit at a comfortable 73%. In contrast, September tends to be milder, with a minimum temperature of 0°C (32°F), an average of 13°C (55°F), and a maximum of 24°C (75°F). This month sees increased precipitation, totaling around 101 mm (4.0 in) across about 14 days, along with higher humidity at 86%. For more detailed information, check out Uddevalla weather in September.

In May, temperatures range from a minimum of 0°C (31°F) to a maximum of 29°C (84°F), with an average of 11°C (53°F). The month experiences about 75 mm (3.0 in) of precipitation over 12 days, accompanied by a moderate humidity level of 73%. In contrast, October brings cooler temperatures, with a minimum of -5°C (24°F), an average of 9°C (48°F), and a maximum of 19°C (67°F). This month sees increased precipitation of 103 mm (4.1 in) over 16 days and higher humidity at 92%. For more specific insights, you can check the detailed Uddevalla weather in October.

May and November present contrasting weather patterns, showcasing the transition from spring to late autumn. In May, temperatures range from a chilly 0°C (31°F) at night, peaking at a pleasant 29°C (84°F) during the day, with an average of 11°C (53°F). The month typically experiences about 75 mm (3.0 in) of precipitation over 12 days, accompanied by a moderate humidity level of 73%.

In sharp contrast, November sees much colder temperatures, with minimums dipping to -12°C (11°F) and a daily maximum of only 15°C (59°F), averaging around 5°C (41°F). Although the total precipitation is slightly lower at 71 mm (2.8 in), it occurs over 14 days and is compounded by higher humidity at 93%. For further details on the weather during this month, visit Uddevalla weather in November.

May and December present stark contrasts in weather patterns. In May, temperatures range from a chilly 0°C (31°F) at night to a warm 29°C (84°F) during the day, with an average temperature of 11°C (53°F). The month sees around 75 mm (3.0 in) of precipitation spread over 12 days and a moderate humidity level of 73%. In contrast, December is much colder, with temperatures dropping to a minimum of -13°C (8°F) and an average of only 2°C (35°F). The maximum temperature reaches just 10°C (50°F), while precipitation remains comparable at 70 mm (2.7 in) over 14 days, accompanied by higher humidity at 93%. For more detailed insights on December weather, check out Uddevalla weather in December.

Compare Uddevalla's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Uddevalla

As May unfolds in Uddevalla, it marks a significant transition from the chilly grip of winter to the warmer embrace of early summer. With temperatures reaching up to 29°C (84°F), the month offers a delightful contrast to the colder weeks that precede it, making it a perfect time for outdoor activities. Although you can expect about 12 days of rain, the average humidity level of 73% adds a refreshing quality to the air, enhancing the experience of longer daylight hours. May truly stands out with its vibrant blend of warmth and moderate rainfall compared to the more variable conditions of previous months. For a deeper understanding of what to expect throughout the year in this fascinating region, be sure to check out Uddevalla Climate.