June Weather in Belfast, United Kingdom

Last updated: March 17, 2025

June in Belfast, United Kingdom is a delightful blend of mild temperatures and refreshing rain. With a maximum temperature reaching 26°C (79°F), the month offers plenty of opportunities for outdoor activities, while the average temperature hovers around a comfortable 14°C (57°F). However, visitors should be prepared for some variability, as temperatures can dip to a minimum of 6°C (43°F). Rain is not uncommon, with 78 mm (3.1 in) of precipitation spread across 14 rainy days, contributing to a humidity level of 84%. Whether basking in the sun or enjoying a cozy, rainy afternoon, June captures the charm of Belfast's summer.

June Temperature in Belfast

June in Belfast marks a delightful transition into summer, with temperatures trending upward from the chill of winter. With minimums rising to 6°C (43°F) and daytime highs reaching a pleasant 26°C (79°F), the month showcases the city at its warmest. The average temperature of 14°C (57°F) reflects a significant increase from earlier months, inviting both locals and visitors to enjoy the longer days outdoors. This gradual warm-up not only enhances outdoor activities but also paints the landscape in vibrant hues, making June a captivating time to experience the charm of Belfast.

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

The chart illustrates June temperature patterns in Belfast, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424344475257605956514744
Data source: Temperature data for Belfast generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Belfast

In June, Belfast experiences notable rainfall, accumulating 78 mm (3.1 in) over roughly 14 days. This marks a slight increase from May's precipitation, reflecting the gradual transition into the wetter summer months. The frequency of rain in June, combined with the total precipitation, suggests a vibrant environment as the city shifts from the drier spring. As July approaches, the precipitation levels further rise, hinting at an ongoing trend of increased rainfall, particularly as August looms with its peak intensity. Overall, June's weather serves as a precursor to the more unsettled conditions characteristic of mid-summer in Belfast.

June Precipitation Trends in Belfast

The chart displays monthly precipitation patterns in Belfast, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6089804566788411575929491
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Belfast

In June, the humidity in Belfast, United Kingdom settles at a comfortable 84%, continuing the gradual decline observed from the higher levels earlier in the year. Following the peak humidity of 87% in January, there’s a steady downward trend that reaches its low in May at 82% before slightly rising again in June. While humidity levels are relatively high from July onwards, June offers a refreshing shift, marking the transition into summer with more moderate moisture in the air. This month’s humidity is a pleasant interlude, positioned between the drier spring and the more humid months that follow, allowing residents and visitors to enjoy the lush greenery of the season without the weight of oppressive moisture.

June Average Humidity in Belfast

This chart illustrates the average monthly humidity levels in Belfast, with June's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how June's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Belfast

In June, Belfast experiences a notable spike in UV intensity, with the UV Index reaching 8, categorizing it as very high. This increase signifies a shift from the moderate levels observed in earlier months, prompting a more cautious approach to sun exposure. With a burn time of just 15 minutes, sun safety becomes paramount, particularly as the summer sun shines bright. Following this trend, both July rates mirror June’s, necessitating continued vigilance against sun damage. As the months progress, the UV Index starts to taper down, emphasizing the importance of seasonal awareness. To learn more about sun safety in Belfast, check the detailed Belfast UV Index.

Maximum UV Index Levels in Belfast for June

The chart shows the monthly maximum UV Index (UVI) for Belfast 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578865321
Data source: Belfast 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 Belfast

June in Belfast shines brightly with 394 hours of sunshine, marking a peak that reflects the city's lively transition into summer. Following a steady increase from 81 hours in January to a delightful 403 hours in May, the sunny days of June continue to captivate residents and visitors alike. The warm glow of summer lingers as July follows closely behind with 399 hours, creating a vibrant atmosphere perfect for outdoor adventures. This upward trend in sunlight fosters a sense of joy and renewal, yet the gradual decline begins in August and continues into the autumn months, reminding us of the ever-changing nature of Belfast's seasonal charm.

Monthly Sunshine Duration in Belfast: June Highlighted

The June sunshine duration represents the total number of hours Belfast 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.
JanFebMarAprMayJunJulAugSepOctNovDec81h150h209h322h403h394h399h349h295h232h115h87h
Data source: Belfast June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Belfast During June

In Belfast, June typically sees a 23% chance of sunny weather, marking a slight dip compared to the preceding months of April and May, which enjoy more favorable odds at 42% and 33% respectively. Interestingly, while the arrival of summer often stirs hopes for brighter days, the likelihood of sunshine remains relatively modest. As we move into July, the chances do increase to 30%, but June presents a mixed bag of weather that often leaves residents reaching for their umbrellas rather than their sunglasses. Overall, it appears that while June holds a promise of warmth, sunshine remains a tantalizingly elusive goal in Northern Ireland's capital.

Percentage of Sunny Days in June in Belfast

The chart illustrates the percentage of sunny days in Belfast 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 Belfast experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%23%20%42%33%23%30%21%20%18%20%14%
Data source: Belfast June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Belfast in June

As June arrives in Belfast, the city basks in 17 hours of daylight, marking the peak of the year. This notable increase follows a steady ascent from just 7 hours in January to a delightful 16 hours in May, showcasing the gradual lightening of the days as spring unfolds. In June, the long days encourage vibrant outdoor activities and community gatherings, as residents take full advantage of the sunshine. However, the daylight begins to wane slightly in July, leading to 16 hours, before tapering off through the autumn months. The trend is clear: as summer peaks, Belfast enjoys its brightest and longest days, creating a season of warmth and life that locals cherish.

Average Daylight Hours in Belfast for June

The chart illustrates the variation in daylight duration in Belfast throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 56m9h 44m11h 54m14h 7m16h 5m17h 7m16h 34m14h 47m12h 38m10h 26m8h 27m7h 21m
Data source: Belfast daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Belfast

In June, the average wind speed in Belfast reaches a gentle 3.8 m/s (9 mph), reflecting a slight increase from the previous months, yet remaining among the calmer periods of the year. This moderate breeze is characteristic of late spring's transition into summer, offering a refreshing feel without overwhelming gusts. Notably, June's wind speed is a drop from the more robust winds of February (6.2 m/s) and a stark contrast to the notably lighter 2.6 m/s (6 mph) experienced in July. As the year progresses, it's fascinating to see how wind speeds fluctuate, with June serving as a balanced interlude before the seasonal shift begins.

Average June Wind Speed in Belfast

The chart displays monthly wind speed patterns in Belfast, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.36.24.83.53.93.8 m/s2.63.23.44.75.04.9
Data source: Belfast June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Belfast Compares to Other Months

The weather in Belfast changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Belfast and find detailed weather information for every month.

When comparing the weather in June and January, one can see stark seasonal contrasts. June boasts warmer temperatures, with a minimum of 6°C (43°F) and an average of 14°C (57°F), peaking at a pleasant 26°C (79°F). The month experiences about 78 mm (3.1 in) of precipitation over 14 days, with humidity at 84%. In contrast, January brings chillier conditions, with temperatures dipping as low as -4°C (26°F) and averaging around 6°C (43°F), reaching a maximum of 14°C (57°F). This month sees slightly less precipitation at 60 mm (2.3 in) over 10 days, and a higher humidity level at 87%. For more detailed information, you can refer to Belfast weather in January.

June and February present contrasting weather conditions in Belfast. In June, temperatures range from a minimum of 6°C (43°F) to a pleasant maximum of 26°C (79°F), averaging around 14°C (57°F). The month experiences moderate rainfall, totaling 78 mm (3.1 in) over approximately 14 days, with a relatively high humidity of 84%. In stark contrast, February is much cooler, with temperatures ranging from a chilly -2°C (28°F) to a maximum of 13°C (56°F), averaging 6°C (43°F). Despite slightly higher precipitation of 89 mm (3.5 in) over the same number of days, it feels significantly different due to the winter chill and a humidity level of 86%. For more detailed information on February weather, you can visit Belfast weather in February.

The weather in June is notably warmer compared to March, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), while March sees temperatures dip to a minimum of -3°C (27°F) and reach a maximum of 16°C (60°F). June experiences an average temperature of 14°C (57°F) versus March's average of 7°C (44°F). In terms of precipitation, June has slightly less, with 78 mm (3.1 in) across 14 days, compared to March's 80 mm (3.2 in) over 16 days. Humidity is relatively high in both months, but it is marginally lower in June at 84% compared to March’s 86%. For a more detailed look at March weather, you can visit Belfast weather in March.

In comparing the weather of June and April, it is clear that June experiences significantly warmer temperatures, with an average of 14°C (57°F) and maximums reaching up to 26°C (79°F), whereas April has a cooler average of 8°C (47°F) and a maximum of only 18°C (65°F). Additionally, June tends to be wetter, with 78 mm (3.1 inches) of precipitation over 14 days, compared to April's 45 mm (1.8 inches) over 10 days. Despite June being slightly less humid at 84%, both months exhibit high humidity levels, with April at 85%. For more detailed information on April weather, you can visit Belfast weather in April.

In comparing the weather between June and May, June generally sees milder temperatures, with an average minimum of 6°C compared to May's 1°C, and an average maximum of 26°C versus May's 22°C. This leads to a more pleasant overall average temperature of 14°C in June, up from May's 11°C. Moreover, June experiences slightly higher precipitation, totaling 78 mm over 14 days, compared to May’s 66 mm over 13 days. Humidity levels are also a bit higher in June at 84%, compared to 82% in May. For more details, check out Belfast weather in May.

In June, temperatures range from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), with an average of 14°C (57°F). The month sees about 78 mm (3.1 in) of precipitation over 14 days, and humidity levels are around 84%. In contrast, July experiences slightly warmer conditions, with temperatures starting at 8°C (47°F) and peaking at 26°C (78°F), while the average temperature is 15°C (60°F). Additionally, July receives about 84 mm (3.3 in) of precipitation over the same number of days, but humidity increases slightly to 86%. For more detailed information, you can check the Belfast weather in July.

In June, temperatures range from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), with an average of 14°C (57°F). The month sees about 78 mm (3.1 in) of precipitation over 14 days and maintains a humidity level of 84%. In contrast, August experiences a slightly warmer temperature with a minimum of 8°C (46°F) and a maximum of 22°C (71°F), averaging 15°C (59°F). However, it is also wetter, receiving 115 mm (4.5 in) of rain over 19 days and a similar humidity level of 86%. For more details, check out Belfast weather in August.

In comparing the weather of June and September, we notice some distinct differences and similarities. June generally offers warmer temperatures, with a minimum of 6°C (43°F) and a maximum of 26°C (79°F) compared to September's range of 4°C (39°F) to 21°C (71°F). Both months experience relatively high humidity, with June at 84% and September slightly higher at 88%. Precipitation levels are quite similar, with June receiving 78 mm (3.1 in) over 14 days and September slightly lower at 75 mm (3.0 in) across 15 days. For a detailed look at September weather in Belfast, you can visit Belfast weather in September.

June and October present contrasting weather patterns, each with unique characteristics. In June, temperatures range from a mild 6°C (43°F) at night to a warm 26°C (79°F) during the day, with an average temperature of 14°C (57°F). The month experiences around 78 mm (3.1 in) of precipitation over 14 days and maintains a relatively high humidity of 84%. In contrast, October brings cooler temperatures, with a minimum of 1°C (35°F), an average of 11°C (52°F), and a maximum of 18°C (65°F). Rainfall increases slightly to 92 mm (3.6 in) spread over 15 days, accompanied by even higher humidity at 89%. For a deeper look into October's weather, you can check out Belfast weather in October.

June and November present contrasting weather conditions. In June, temperatures range from a mild 6°C (43°F) at night to a pleasant 26°C (79°F) during the day, with an average of 14°C (57°F) and a lower humidity of 84%. Despite experiencing some rainfall, with about 78 mm (3.1 in) over approximately 14 days, June still offers more favorable conditions for outdoor activities. In contrast, November sees cooler temperatures, dipping as low as 0°C (32°F) at night and peaking at 15°C (59°F) during the day, resulting in an average of 8°C (47°F). Rainfall increases slightly to 94 mm (3.7 in) across about 15 days, coupled with a higher humidity level of 90%, making the atmosphere feel much wetter. For more information on Belfast's November weather, visit Belfast weather in November.

June and December exhibit stark contrasts in weather patterns. In June, temperatures range from a mild 6°C (43°F) at night to a comfortable 26°C (79°F) during the day, with an average of 14°C (57°F). The month experiences around 78 mm (3.1 in) of precipitation over 14 days, accompanied by relatively high humidity at 84%.

In contrast, December brings cooler temperatures with a minimum of -1°C (30°F) and a maximum of 13°C (56°F), resulting in a lower average of 6°C (44°F). Precipitation increases slightly to 91 mm (3.6 in), lasting for about 15 days, and the humidity rises to 86%. For more information on December weather, check out Belfast weather in December.

Compare Belfast's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Belfast

In June, Belfast transforms into a lively springboard for summer, showcasing warmer temperatures that contrast sharply with the chill of earlier months. The city experiences a delightful blend of maximum warmth and a refreshing average that makes outdoor activities more enjoyable. However, residents should be prepared for occasional rain, as the month sees a fair share of precipitation, contributing to the lush greenery that the region is known for. With humidity levels on the rise, the air feels pleasantly warm, inviting both locals and visitors to relish the longer days. For a deeper dive into how this vibrant weather fits into Belfast's yearly climate patterns, explore Belfast Climate.