June Weather in Helsinki, Finland

Last updated: August 21, 2025

Experience the dynamic June weather of Helsinki, Finland, where temperatures can soar to a maximum of 30°C (86°F) while averaging around a comfortable 16°C (62°F). In this vibrant month, you may encounter a refreshing minimum of 3°C (38°F) during cooler nights. With 61 mm (2.4 in) of precipitation spread across approximately 10 days, expect occasional rain to keep the lush landscapes vibrant. The humidity levels hover around 75%, adding a touch of moisture to the warm, sunny days that define Helsinki’s enchanting summer charm. Enjoy the beautiful contrasts that June offers in this Nordic gem!

June Temperature in Helsinki

In June, Helsinki transforms into a vibrant backdrop of warmth and long days, marking a striking departure from its icy winter past. With temperatures ranging from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), the city basks in a pleasant average of 16°C (62°F), making it one of the most inviting months of the year. This progressive shift from the coolness of earlier spring months, where temperatures struggle to reach the double digits, heralds the advent of summer festivities and outdoor activities. June's rising warmth not only enhances the picturesque landscapes of lakes and parks but also invites both locals and travelers to relish in the sun-soaked charm of this Nordic capital, where long daylight hours invite endless exploration and joyful celebration.

June Weather in Helsinki: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Helsinki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Helsinki, June 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).
JanFebMarAprMayJunJulAugSepOctNovDec272630395061646254453830
Data source: Temperature data for Helsinki 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.

June Precipitation in Helsinki

In June, Helsinki experiences a noticeable uptick in rainfall, with a total precipitation of 61 mm (2.4 in), marking it as the wettest month so far this year. This increase in moisture comes after a relatively dry spring, where May recorded 56 mm (2.2 in) over ten days. June maintains a similar pattern with 10 precipitation days, suggesting a steady, if not intense, distribution of rainfall. The trend of increasing precipitation continues into July, when rainfall peaks at 91 mm (3.6 in), highlighting a shift into the wetter summer months. This gradual rise in precipitation is indicative of the changing seasons in Helsinki, where summer showers become more frequent as the city warms.

June Precipitation Trends in Helsinki

The chart displays monthly precipitation patterns in Helsinki, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Helsinki, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec554852485661918376896273
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Helsinki

In Helsinki, June signals a notable transition in humidity levels, with the average reaching 75%, consistent with May's figures. This marks a significant drop from the winter months, where humidity hovered around an impressive 97% in January and 95% in February. As spring unfolds, the city experiences a gradual decrease in humidity, paving the way for the early summer months. Despite the rise to 80% in July, June offers a welcome respite from the heavy dampness typical of Helsinki's colder months, setting the stage for a comfortable, albeit slightly humid, summer atmosphere. As the year progresses, one can expect a gradual increase in humidity once again, culminating in a more humid late summer and fall.

June Average Humidity in Helsinki

This chart illustrates the average monthly humidity levels in Helsinki, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Helsinki is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%93%87%75%75%80%83%90%93%94%95%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Helsinki

In June, Helsinki experiences a noticeable shift in the UV Index, climbing to a high level of 7, which means a burn time of just 25 minutes for unprotected skin. This is a significant increase from the low indices of 1 observed in the mid-winter months of January and February, as well as the gradual rise through the spring, where the index ranged from 3 to 5 in March, April, and May. The trend highlights a burgeoning intensity of sun exposure as the summer solstice approaches, making it crucial to stay vigilant about sun safety during this time. To learn more about UV levels throughout the year, check out the comprehensive details at Helsinki UV Index.

Maximum UV Index Levels in Helsinki for June

The chart shows the monthly maximum UV Index (UVI) for Helsinki in June, 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 June, the maximum UV index in Helsinki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Helsinki June 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.

June Sunshine in Helsinki

June in Helsinki shines as a radiant highlight, offering 493 hours of sunshine, a dazzling increase from the preceding months. As spring gives way to summer, the city's sky transforms into a canvas of light, reflecting a gradual ascent from 55 hours in January to an impressive 451 hours in May. This sunny peak in June not only marks the height of daylight but also embodies the warmth and vibrancy of the city's outdoor life. Following June, the sunshine begins to taper off slightly in July, still maintaining a generous 485 hours, before transitioning into the more subdued months of late summer and autumn. Ultimately, June stands as a testament to the joy of summer in Helsinki, inviting both locals and visitors to bask in its glow.

Monthly Sunshine Duration in Helsinki: June Highlighted

The June sunshine duration represents the total number of hours Helsinki experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec55h154h261h362h451h493h485h406h290h190h113h58h
Data source: Helsinki June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Helsinki During June

June marks a delightful shift in Helsinki's weather, with the chance of sunny days rising to 53%. This increase is part of a broader upward trend, as the city emerges from the long, gray winter months. Following a steady climb from 5% in January to 44% in April, June shines as a beacon of warmth and light, leading into the peak of summer. July follows closely with a 56% likelihood of sunshine, suggesting that residents and visitors alike can look forward to enjoying the outdoors in the vibrant, sunlit days of early summer. As the sunny probabilities fluctuate throughout the year, June stands out as an idyllic time to relish the beauty of Helsinki under clear skies.

Percentage of Sunny Days in June in Helsinki

The chart illustrates the percentage of sunny days in Helsinki throughout the year, with June 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 Helsinki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec5%15%38%44%31%53%56%29%28%19%19%14%
Data source: Helsinki June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Helsinki in June

In Helsinki, Finland, June marks a vibrant peak in daylight, basking the city in an impressive 18 hours of sunlight. This significant increase reflects a striking transition from the 6 hours of daylight experienced in January, with a gradual ascent throughout the spring months. As the days lengthen from 11 hours in March to 17 hours in May, June not only embodies the height of summer but also serves as a reminder of the lush possibilities that come with extensive daylight. Following June, July sees a slight decline to 17 hours, before daylight begins to diminish again, ushering in the cooler months ahead. This pattern highlights the unique rhythm of life in Helsinki, where long summer days invigorate the spirit and create a dynamic backdrop for exploration and celebration.

Average Daylight Hours in Helsinki for June

The chart illustrates the variation in daylight duration in Helsinki throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 45m9h 7m11h 51m14h 38m17h 14m18h 45m17h 56m15h 31m12h 48m10h 2m7h 27m5h 56m
Data source: Helsinki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Helsinki

In June, the winds in Helsinki soften noticeably, with an average speed of 3.0 m/s (7 mph), marking it as the calmest month of the year. This gentle breeze contrasts sharply with the gusts of October, which peak at 5.2 m/s (12 mph), offering a glimpse of the impending autumn. As spring transitions to summer, the winds generally decrease, showing a trend of variability throughout the year that influences both the climate and the outdoor activities in this vibrant city. Notably, August breezes pick up again to 4.4 m/s (10 mph), hinting at the lingering warmth before the shift into the cooler months. Thus, June serves as a tranquil interlude, inviting residents and visitors alike to enjoy the serene summer days.

Average June Wind Speed in Helsinki

The chart displays monthly wind speed patterns in Helsinki, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.54.54.13.73.0 m/s3.54.44.15.24.44.2
Data source: Helsinki June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Helsinki Compares to Other Months

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

June and January present strikingly contrasting weather conditions. In June, temperatures can range from a chilly 3°C (38°F) at night to a warm 30°C (86°F) during the day, with an average of 16°C (62°F). The humidity is relatively high at 75%, and the month sees about 61 mm (2.4 in) of precipitation over approximately 10 days. In stark contrast, January offers a frigid experience, with minimum temperatures plummeting to -23°C (-9°F) and an average of -3°C (28°F), peaking at only 8°C (46°F). Humidity levels are notably higher at 97%, with around 55 mm (2.2 in) of precipitation over 11 days. For more details on January weather in Helsinki, visit Helsinki weather in January.

In comparing the weather between June and February, one can observe striking differences. June boasts pleasantly warm temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), with an average of about 16°C (62°F). This month experiences around 61 mm (2.4 in) of precipitation distributed over approximately 10 days, accompanied by a relative humidity of 75%. In contrast, February presents a starkly colder climate, with temperatures plummeting as low as -23°C (-8°F) and peaking at a meager 6°C (43°F), averaging at -3°C (26°F). Although February has less precipitation at 48 mm (1.9 in), the humidity is notably higher at 95%, creating a distinctly chillier and more biting atmosphere. For more specifics on February weather, check out Helsinki weather in February.

When comparing the weather in June and March, the differences are striking. June boasts a much warmer climate, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), averaging around 16°C (62°F). In contrast, March is still in the grip of winter, featuring much colder temperatures that range from a chilling -22°C (-7°F) to a maximum of 10°C (51°F), with an average temperature of -1°C (31°F). Both months experience precipitation, but June has slightly higher totals at 61 mm (2.4 in) over 10 days compared to March's 52 mm (2.0 in) across 12 days. Notably, March has higher humidity at 93%, while June's humidity is a relatively comfortable 75%. For more detailed information, check out Helsinki weather in March.

When comparing the weather in June and April, it's clear that June offers significantly warmer temperatures, with daily averages soaring to 16°C (62°F) compared to April's chilly average of just 4°C (39°F). While April can still experience colder nights, with a minimum temperature plummeting to -12°C (10°F), June presents a milder climate with minimums of 3°C (38°F). Additionally, June sees increased warmth reaching up to a maximum of 30°C (86°F), starkly contrasting with April’s 19°C (67°F) peak. Precipitation levels are somewhat higher in June at 61 mm (2.4 in) across 10 days, versus April's 48 mm (1.9 in) over 9 days. Interestingly, humidity is slightly lower in June at 75%, compared to the more humid April at 86%. For more detailed information about April weather, you can check Helsinki weather in April.

In comparing the weather between May and June, June typically presents milder temperatures. While May sees a minimum temperature of -3°C (27°F) and an average of 10°C (50°F), June boasts a minimum of 3°C (38°F) and a significantly warmer average of 16°C (62°F). The maximum temperatures also rise, with June reaching up to 30°C (86°F) compared to May’s peak of 27°C (80°F). Both months experience similar precipitation levels, with June recording 61 mm (2.4 in) and May slightly lower at 56 mm (2.2 in), but both also have rain on about 10 days. Importantly, humidity remains consistent at 75% for both months. For more detailed insights on May weather, you can visit Helsinki weather in May.

In June, the weather presents a range of temperatures with a minimum of 3°C (38°F) and an average of 16°C (62°F), reaching a maximum of 30°C (86°F). The month experiences 61 mm (2.4 in) of precipitation over about 10 days and maintains a humidity level of 75%. By contrast, July sees a warmer climate with minimum temperatures rising to 8°C (46°F) and an average temperature of 18°C (65°F), peaking at 32°C (90°F). Additionally, July has slightly more precipitation, totaling 91 mm (3.6 in) across 13 days, along with increased humidity at around 80%. For more details on July's weather, visit Helsinki weather in July.

June and August in this region present distinct weather characteristics. June typically sees a wider range of temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (86°F), while August experiences milder temperatures, ranging from a minimum of 7°C (45°F) to a maximum of 29°C (84°F). Additionally, June tends to be less humid at 75%, compared to August's higher humidity level of 83%. Precipitation also increases in August, with 83 mm (3.3 in) falling over 13 days, compared to June's 61 mm (2.4 in) over 10 days. For more detailed insights, you can refer to Helsinki weather in August.

June and September present quite contrasting weather patterns. In June, temperatures can range from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), with an average of 16°C (62°F), making it a warmer month ideal for outdoor activities. However, it also experiences around 61 mm (2.4 in) of precipitation over approximately 10 days, accompanied by a humidity level of 75%.

In contrast, September cools down significantly, with temperatures ranging from a chilly -1°C (31°F) to a comfortable 23°C (73°F) and an average of 12°C (54°F). This month sees increased rainfall, totaling 76 mm (3.0 in) over about 13 days, and even higher humidity at 90%. For more detailed insights into September's weather, visit Helsinki weather in September.

June and October present contrasting weather characteristics in terms of temperature and humidity. June enjoys warmer temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 30°C (86°F), with an average of 16°C (62°F) and relatively lower humidity at 75%. In contrast, October sees much cooler conditions, with temperatures dropping to a minimum of -4°C (25°F) and maxing out at 16°C (62°F), resulting in an average temperature of just 7°C (45°F). Additionally, October's humidity is noticeably higher at 93%, coupled with increased precipitation of 89 mm (3.5 in) over 17 days, compared to June's 61 mm (2.4 in) over 10 days. For a more detailed look at October's conditions, you can check Helsinki weather in October.

June and November present strikingly different weather experiences. In June, temperatures range from a mild 3°C (38°F) at night to a warm 30°C (86°F) during the day, with average humidity at 75%. Rainfall is fairly moderate, with about 61 mm (2.4 in) spread over 10 days. In contrast, November sees a significant drop in temperatures, with averages hovering around 3°C (38°F) and highs only reaching 12°C (54°F). The month is notably colder, with nighttime lows plummeting to -7°C (19°F) and a higher humidity of 94%, alongside slightly increased precipitation totaling 62 mm (2.5 in) over 13 days. For a detailed look at the conditions, check out Helsinki weather in November.

June and December present stark contrasts in weather. June enjoys mild temperatures with a minimum of 3°C (38°F), an average of 16°C (62°F), and a maximum reaching up to 30°C (86°F), accompanied by relatively low humidity at 75% and about 61 mm (2.4 in) of precipitation over 10 days. In contrast, December plunges into colder territory, with temperatures dropping significantly to a minimum of -18°C (0°F), averaging -1°C (31°F), and peaking at only 7°C (44°F). December also brings higher humidity at 95% and increased precipitation, totaling 73 mm (2.9 in) over 15 days. For more insights into the winter climate, you can explore Helsinki weather in December.

Compare Helsinki's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Helsinki

As June arrives in Helsinki, the weather transforms into a delightful blend of warmth and emerging summer vibes. With temperatures peaking at a comfortable 30°C (86°F) and an inviting average of 16°C (62°F), this month marks a notable shift from the cooler spring months. However, the 75% humidity combined with occasional rain—averaging 10 days of precipitation—adds a refreshing contrast, ensuring that the lush greenery flourishes. Embrace the vibrant atmosphere of June in Helsinki, where the days are longer and the spirit of summer beckons to be enjoyed. For a deeper look at how June fits into the overall patterns, explore the full details at Helsinki Climate.