May Weather in Imatra, Finland

Last updated: August 21, 2025

May in Imatra, Finland, is a month of striking contrasts, with temperatures ranging from a minimum of -3°C (27°F) up to a pleasant 28°C (83°F). This period offers an average temperature of 10°C (50°F), providing a refreshing spring feel. Rainfall is moderate, with approximately 52 mm (2.1 in) spread over 10 days, contributing to a humidity level of around 77%. As nature awakens, visitors can expect a blend of crisp air and the vibrant green landscapes that characterize this enchanting Finnish locale.

May Temperature in Imatra

In May, Imatra, Finland begins to shed the icy grip of winter, with temperatures making a remarkable leap. The minimum temperature rises to a mild -3°C (27°F), while the average climbs to a comfortable 10°C (50°F), signaling the arrival of spring's warmth. On sunny days, residents can enjoy highs reaching an impressive 28°C (83°F), offering a stark contrast to the frigid conditions of the previous months. This month embodies a transitional phase, where the last remnants of snow dissolve, and nature awakens, making May a delightful time to experience the rejuvenation of the landscape after the long, harsh winter.

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

The chart illustrates May temperature patterns in Imatra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Imatra, 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).
JanFebMarAprMayJunJulAugSepOctNovDec232228374961646152433526
Data source: Temperature data for Imatra 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 Imatra

May in Imatra, Finland, brings a gentle yet steady embrace of rain, contributing 52 mm (2.1 in) of precipitation over approximately 10 days. This month sits comfortably in line with the spring trend, showcasing a slight increase from April’s 46 mm (1.8 in), while remaining comparable to the precipitation levels seen in February and March. Interestingly, May marks a transition as the region edges closer to the summer months, hinting at the wetter conditions that typically emerge in June and July. With a moderate number of precipitation days, May offers a refreshing balance of rain, allowing the lush landscapes to thrive without overwhelming downpours—making it a delightful month for appreciating the beauty of Imatra’s spring.

May Precipitation Trends in Imatra

The chart displays monthly precipitation patterns in Imatra, 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 Imatra, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec465348465253728670734873
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Imatra

In Imatra, Finland, May brings a noticeable dip in humidity, with levels averaging 77%—a significant drop from the highs of winter and early spring. This decline continues into June, where humidity levels further decrease to 75%, marking the start of warmer months. However, as summer progresses into July and August, humidity begins to rise again, reaching 82% and 84% respectively. This pattern underscores a seasonal rhythm, where May represents a transition from the damp grip of winter to the balmier, albeit more humid, days of summer. The fluctuations throughout the year hint at the varied climates experienced in this Finnish locale, where the freshness of spring is soon intertwined with the humidity of summer.

May Average Humidity in Imatra

This chart illustrates the average monthly humidity levels in Imatra, 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 Imatra is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%96%93%88%77%76%82%84%90%93%93%95%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Imatra

As spring gives way to summer in Imatra, Finland, the UV Index begins to rise, signaling a shift in sun exposure. In May, the UV Index reaches 5, categorized as moderate, requiring a burn time of just 30 minutes for unprotected skin. This trend marks a noticeable increase from the earlier months, where the index lingered around 1-4, indicating relatively low to moderate exposure. As conditions warm and days lengthen, awareness of sun safety becomes increasingly important; after May, the index climbs further, peaking in July. Embrace the sunny days while taking care of your skin by staying informed at Imatra UV Index.

Maximum UV Index Levels in Imatra for May

The chart shows the monthly maximum UV Index (UVI) for Imatra 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 Imatra typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456753211
Data source: Imatra 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 Imatra

As May arrives in Imatra, Finland, the city basks in an impressive 438 hours of sunshine, marking a vibrant transition into summer. This burst of daylight follows a steady ascent from the 31 hours in January, showcasing a remarkable increase as the days grow longer. The sunlight really starts to shine through in March with 247 hours, paving the way for a blossoming April that nearly doubles that number to 357 hours. With June peeking just around the corner at 485 hours, it’s clear that May serves as a delightful bridge, inviting residents and visitors alike to revel in the warmth and beauty of the season. The energy radiates through the lush landscapes, reflecting the joy of longer, brighter days ahead.

Monthly Sunshine Duration in Imatra: May Highlighted

The May sunshine duration represents the total number of hours Imatra 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.
JanFebMarAprMayJunJulAugSepOctNovDec31h129h247h357h438h485h480h396h276h187h86h24h
Data source: Imatra May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Imatra During May

As spring unfolds in Imatra, Finland, May brings a notable shift in weather patterns, offering a 30% chance of sunny days. While this figure indicates a decrease from the preceding month’s 43%, it remains significantly higher than the winter months’ meager percentages. This trend suggests that while May may not guarantee an abundance of sunshine, it's clearly a step away from the gloom of earlier months, ushering in a more temperate and hopeful season. The sun’s likelihood begins to rise dramatically by June, reaching 55%, highlighting the transition towards the vibrant summer months ahead. So, while May might offer a mix of sun and clouds, it's a glimpse of the sunnier days just around the corner.

Percentage of Sunny Days in May in Imatra

The chart illustrates the percentage of sunny days in Imatra 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 Imatra experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec2%11%35%43%30%55%56%23%21%18%10%6%
Data source: Imatra May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Imatra in May

In Imatra, Finland, the progression of daylight throughout the year paints a compelling picture of nature's rhythm. As winter fades, January begins with a mere 6 hours of daylight, giving way to 8 hours in February, signaling the slow return of light. March offers a glimpse of spring with 11 hours, while April brings an invigorating leap to 14 hours. By the time May arrives, residents bask in a generous 17 hours of daylight, a stark contrast to the deepening shadows of winter. The days stretch further in June, peaking at 19 hours, before gently tapering off through the summer months. As autumn sets in, daylight decreases to 15 hours in August, and further dwindles to 12 hours by September, reminding us of the cyclical nature of the seasons. This gradual ebb and flow of daylight not only enhances the charm of Imatra but also enriches the daily lives of its inhabitants, encouraging a deep appreciation for both the light and the dark.

Average Daylight Hours in Imatra for May

The chart illustrates the variation in daylight duration in Imatra throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 27m8h 58m11h 50m14h 46m17h 32m19h 12m18h 17m15h 42m12h 50m9h 57m7h 12m5h 34m
Data source: Imatra daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Imatra

In May, Imatra experiences a gentle echo of spring with an average wind speed of 3.4 m/s (8 mph), reflecting a consistent transition from the briskness of earlier months. Following April's slightly higher winds, May holds steady, maintaining a pleasant breeze that complements the blooming landscapes. The winds start to slow down as the summer approaches, with June and July both recording a drop to 2.9 m/s (7 mph). This trend hints at the generally calmer conditions typical of Finnish summers, providing a serene backdrop for outdoor activities in the vibrant countryside. As the season shifts towards autumn, wind speeds are expected to pick up again, beginning in October with an increase to 4.5 m/s (10 mph), promising a dynamic end to the year.

Average May Wind Speed in Imatra

The chart displays monthly wind speed patterns in Imatra, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.44.03.63.4 m/s2.92.93.83.64.54.13.7
Data source: Imatra May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Imatra Compares to Other Months

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

May and January showcase stark contrasts in weather. In May, temperatures range from a chilly minimum of -3°C (27°F) to a pleasant average of 10°C (50°F), peaking at a warm 28°C (83°F). With 52 mm (2.1 in) of precipitation over about 10 days, the humidity sits at a moderate 77%. Conversely, January experiences much harsher conditions, with minimum temperatures dipping as low as -26°C (-15°F) and an average of -5°C (24°F), only rising to a maximum of 7°C (45°F). With 46 mm (1.8 in) of precipitation across 12 days, January's humidity remains notably high at 98%. For further details, you can refer to Imatra weather in January.

When comparing the weather in May and February, the differences are striking. May experiences a much milder temperature range, with minimums around -3°C (27°F) and maximums reaching up to 28°C (83°F), while February is characterized by much colder temperatures, with lows plummeting to -28°C (-18°F) and highs peaking at just 6°C (44°F). Both months see similar precipitation levels—with May receiving 52 mm (2.1 in) over 10 days and February slightly higher at 53 mm (2.1 in) over 11 days. However, humidity levels in February are notably higher at 96%, compared to May's 77%. For more details on February's weather, you can visit Imatra weather in February.

May and March exhibit distinct weather patterns, reflecting the transition from winter to spring. In March, temperatures are significantly colder, with a minimum of -27°C (-16°F) and an average of -2°C (28°F), while May sees milder conditions with a minimum of -3°C (27°F) and an average of 10°C (50°F). Although precipitation levels are relatively similar—with March recording 48 mm (1.9 in) over 12 days and May at 52 mm (2.1 in) over 10 days—March has a higher humidity level at 93%, compared to May's 77%. To explore more about March weather, visit Imatra weather in March.

In comparing the weather between April and May, May generally presents milder conditions. April experiences colder temperatures, with a minimum of -13°C (9°F) and an average of only 3°C (38°F), while May sees temperatures rising, with a minimum of -3°C (27°F) and an average of 10°C (50°F). This trend continues with May’s maximum temperature reaching 28°C (83°F), significantly warmer than April's peak of 19°C (67°F). Precipitation is slightly higher in May at 52 mm (2.1 in) over 10 days compared to April's 46 mm (1.8 in) spanning 11 days. Additionally, humidity in April is more pronounced at 88%, compared to May's 77%. For more details on the specific conditions in April, you can check Imatra weather in April.

May tends to be a transitional month, with temperatures ranging from a chilly minimum of -3°C (27°F) to a pleasant maximum of 28°C (83°F), averaging around 10°C (50°F). The precipitation level is similar to June, at 52 mm (2.1 in), but the humidity is slightly higher at 77%. In contrast, June experiences a notable rise in average temperatures, with a minimum of 2°C (36°F) and a maximum of 32°C (89°F), resulting in a more comfortable average of 16°C (61°F). Precipitation remains consistent at 53 mm (2.1 in) over 10 days, but the humidity decreases to 75%. For more details on June weather, you can visit Imatra weather in June.

The weather in May and July shows a clear contrast in temperature and conditions. May experiences a wide temperature range, with minimums dropping as low as -3°C (27°F) and pleasant averages around 10°C (50°F), peaking at 28°C (83°F). However, it tends to be humid with an average of 77% humidity and about 52 mm (2.1 in) of precipitation spread over 10 days. In contrast, July features warmer temperatures, with minima at 6°C (44°F), average highs around 18°C (64°F), and maximum temperatures reaching up to 32°C (89°F). Additionally, July sees slightly increased precipitation, totaling 72 mm (2.8 in) over 12 days, accompanied by a higher humidity level of 82%. For more detailed information, you can check Imatra weather in July.

In May, temperatures can vary significantly, with a minimum of -3°C (27°F) and a pleasant average of 10°C (50°F), reaching a maximum of 28°C (83°F). The month experiences around 52 mm (2.1 in) of precipitation over approximately 10 days, with humidity levels averaging 77%. In contrast, August generally presents milder temperatures, ranging from a minimum of 7°C (44°F) to an average of 16°C (61°F), peaking at 29°C (85°F). However, it is also wetter, receiving about 86 mm (3.4 in) of rain across 16 days, accompanied by increased humidity of 84%. For more details, you can check Imatra weather in August.

When comparing the weather in May and September, notable differences emerge. May features a wider temperature range, with minimums dipping to -3°C (27°F) and maximums reaching up to 28°C (83°F), while September sees a narrower range with minimums at 0°C (33°F) and maximums at 23°C (74°F). Precipitation is slightly higher in September, totaling 70 mm (2.8 in) over 12 days compared to May's 52 mm (2.1 in) over 10 days. Additionally, humidity levels peak in September at 90%, which is significantly higher than May's 77%. For more detailed insights into September weather, you can visit Imatra weather in September.

In comparing the weather between May and October, we see significant differences in temperature and precipitation. May enjoys a broader temperature range, with lows around -3°C (27°F) and highs reaching up to 28°C (83°F), averaging 10°C (50°F). In contrast, October features cooler temperatures, with a minimum of -4°C (24°F), an average of 6°C (43°F), and a maximum of 18°C (65°F). Precipitation is also higher in October, totaling 73 mm (2.9 in) over about 13 days compared to May's 52 mm (2.1 in) over 10 days. Furthermore, October's humidity is notably higher at 93%, compared to May's 77%. For more detailed weather insights, you can explore Imatra weather in October.

May and November present contrasting weather patterns. In May, temperatures can range from a brisk -3°C (27°F) at night to a warm 28°C (83°F) during the day, with an average of 10°C (50°F). This month sees about 52 mm (2.1 in) of precipitation over approximately 10 days, accompanied by a relative humidity of 77%. In contrast, November is significantly colder, with temperatures dipping as low as -10°C (15°F) and averaging around 2°C (35°F). The maximum temperature reaches just 11°C (53°F), and precipitation is slightly lower at 48 mm (1.9 in) spread across 11 days, resulting in a higher humidity of 93%. For more insights on November weather, check Imatra weather in November.

May and December present starkly contrasting weather conditions. In May, temperatures range from a chilly -3°C (27°F) at night to a warm 28°C (83°F) during the day, making it a month of variability with an average of 10°C (50°F). Precipitation is moderate, with about 52 mm (2.1 in) over approximately 10 days, and humidity sits at a comfortable 77%.

In contrast, December is significantly colder, with temperatures plunging to a minimum of -21°C (-6°F) and only peaking at 5°C (42°F), averaging around -3°C (27°F). This month also sees more precipitation, totaling 73 mm (2.9 in) over 16 days, and the humidity is higher at 95%, creating a damp chill. For more insights into December's weather, you can check this link: Imatra weather in December.

Compare Imatra's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Imatra

May in Imatra is a delightful transition month, where spring blooms into its full glory. The rising temperatures, with highs peaking around 28°C, offer a refreshing change from the chillier months of early spring, creating an inviting atmosphere for outdoor activities. While the average temperature climbs noticeably, it also introduces occasional cooler days that remind us winter is just behind us, with lows dipping to -3°C. Rainfall is moderate, with 10 days of precipitation accumulating to about 52 mm, contributing to the lush greenery that characterizes this time of year. The humidity hovers around 77%, giving the air a fresh, invigorating quality. For a deeper dive into what to expect from Imatra's climate, visit Imatra Climate.