June Weather in Castletown, Isle of Man

Last updated: August 21, 2025

Experience the June weather in Castletown, Isle of Man, where temperatures typically reach a pleasant maximum of 17°C (64°F), with an average hovering around 13°C (55°F) and dipping to a cool minimum of 9°C (49°F). The month is characterized by a refreshing humidity of 81% and precipitation totaling 70 mm (2.8 in), spread over 11 days. This blend of mild temperatures and occasional rain creates a beautiful setting for exploring the charming landscapes and historic sites of Castletown. Prepare for a month filled with the allure of early summer, complete with the potential for both sunny days and gentle showers.

June Temperature in Castletown

In June, temperatures in Castletown, Isle of Man mark a pleasant transition into summer, with a noticeable rise from the spring chill. The month greets visitors with a minimum of 9°C (49°F) and an average of 13°C (55°F), peaking at a comfortable 17°C (64°F). This progression from cooler spring months, where temperatures hovered between 5°C (42°F) and 16°C (60°F) in May, showcases a steady warming trend. As spring gives way to summer, Castletown experiences not only increased temperatures but also a vibrant atmosphere, inviting both locals and tourists to enjoy the longer, milder days. The shift is particularly striking when compared to the earlier months of the year, emphasizing the arrival of a more temperate season ready for exploration and outdoor activities.

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

The chart illustrates June temperature patterns in Castletown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castletown, 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).
JanFebMarAprMayJunJulAugSepOctNovDec464545475155585958555047
Data source: Temperature data for Castletown 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 Castletown

In June, Castletown experiences a moderate level of precipitation, measuring 70 mm (2.8 in) over approximately 11 days. This marks a slight increase from May, which received 44 mm (1.7 in), indicating a trend towards wetter conditions as the summer approaches. Interestingly, June's rainfall is matched by July, suggesting a consistent pattern of precipitation during peak summer months. While the number of rainy days remains relatively low compared to the autumn months—when Castletown often sees heavier rainfall—June's weather lays the groundwork for the lush, vibrant landscapes characteristic of the Isle of Man's summer season.

June Precipitation Trends in Castletown

The chart displays monthly precipitation patterns in Castletown, 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 Castletown, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8110687364470709492142144144
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Castletown

In June, Castletown, Isle of Man experiences a noticeable shift as humidity levels stabilize at 81%. This marks a slight increase from May's 79%, suggesting a transition into the more humid summer months. As temperatures begin to rise, humidity typically fluctuates, and June’s levels sit comfortably in the mid-range of the year’s humidity spectrum. Notably, this month follows a trend of decreasing humidity from the early months, where January's moist 89% and February's 88% lay the groundwork for a gradual decline, culminating in the drier conditions experienced in July. These figures highlight the dynamic nature of Castletown’s climate, with June serving as a bridge between the cooler, wetter months and the warmth of summer.

June Average Humidity in Castletown

This chart illustrates the average monthly humidity levels in Castletown, 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 Castletown is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Castletown

In June, Castletown experiences a significant spike in UV exposure, with the UV Index reaching 8, categorizing it as very high. This marked increase from May’s already high value of 7 indicates that sun protection is crucial, as the recommended burn time reduces to just 15 minutes of unprotected exposure. As the summer sun intensifies, being proactive about skin safety is essential. The trend for this month reflects a transition into peak summer conditions, where the risk of UV damage is heightened. For more detailed insights on UV conditions throughout the year, check out Castletown UV Index.

Maximum UV Index Levels in Castletown for June

The chart shows the monthly maximum UV Index (UVI) for Castletown 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 Castletown typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578875321
Data source: Castletown 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 Castletown

In June, sunshine bathes Castletown, Isle of Man, offering a stellar 411 hours of warm light—a slight dip from the vibrant May. This month continues the trend of generous sunshine following the gradual ascent from January's modest 90 hours. With April and May showcasing a brilliant buildup, June’s daylight frames the middle of the year perfectly, right before July resumes its vibrant embrace, matching May’s peak at 418 hours. As the year progresses, June’s sun serves as a gentle reminder of the island's outdoor allure, providing both residents and visitors with ample opportunities to bask in the warmth before autumn's quieter months set in.

Monthly Sunshine Duration in Castletown: June Highlighted

The June sunshine duration represents the total number of hours Castletown 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.
JanFebMarAprMayJunJulAugSepOctNovDec90h161h233h341h418h411h418h376h314h244h131h104h
Data source: Castletown June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castletown During June

As summer approaches, June in Castletown, Isle of Man, presents a modest 29% chance of sunny weather. This percentage reflects a slight uptick from the chillier months, though it's notably lower than the sunny aspirations of April and May, which boast 52% and 40%, respectively. Despite the promise of warmer days ahead, June mirrors the uncertainty of early spring rather than the bright prospects of July, which holds a more optimistic 40% chance of sunshine. As such, while June may not be the sunniest month, it marks a transition into the sunnier season, inviting residents and visitors to embrace the mild weather and the beauty of the Isle of Man's enchanting landscapes.

Percentage of Sunny Days in June in Castletown

The chart illustrates the percentage of sunny days in Castletown 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 Castletown experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%26%25%52%40%29%40%29%24%22%22%21%
Data source: Castletown June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castletown in June

In Castletown, Isle of Man, the month of June brings the pinnacle of daylight, basking the landscape in an impressive 17 hours of light. This vibrant transition begins in April with 14 hours and accelerates through May, where light stretches to 16 hours, setting the stage for the summer solstice. Following June, the daylight gently begins to taper off, dropping to 16 hours in July, then further to 14 hours in August. This seasonal rhythm—from the early dawns of January with just 8 hours to the lengthy summer days—reflects a delightful progression toward the sun-soaked days that define the Isle of Man’s enchanting summer atmosphere. The gradual decline as autumn approaches hints at the cyclical nature of daylight, leading into the shorter days of the colder months.

Average Daylight Hours in Castletown for June

The chart illustrates the variation in daylight duration in Castletown throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h9h 46m11h 54m14h 5m16h 1m17h 2m16h 29m14h 45m12h 38m10h 28m8h 30m7h 26m
Data source: Castletown daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Castletown

In June, the winds in Castletown, Isle of Man, begin to calm, with an average speed of 6.6 m/s (15 mph). This represents a gentle transition from the brisk gusts of earlier months, particularly April's peak of 5.8 m/s (13 mph) and May's 6.4 m/s (14 mph). As summer approaches, the wind speed remains moderate, which is characteristic of the warm month preceding the more blustery autumn and winter seasons. Notably, while January and February showcase robust winds averaging 8.5 m/s (19 mph) and 10.5 m/s (24 mph), June’s conditions offer a more serene environment, ideal for enjoying the scenic beauty of the Isle of Man. As July rolls in, the winds will further diminish, reaching a low of 4.3 m/s (10 mph), firmly establishing June as a tranquil point in the seasonal wind patterns of this picturesque locale.

Average June Wind Speed in Castletown

The chart displays monthly wind speed patterns in Castletown, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.510.58.55.86.46.6 m/s4.35.76.09.39.39.1
Data source: Castletown June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Castletown Compares to Other Months

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

When comparing the weather between June and January, it is evident that June offers milder temperatures with a minimum of 9°C (49°F) and an average of 13°C (55°F), whereas January experiences cooler conditions, with a minimum of 3°C (38°F) and an average of 8°C (46°F). Additionally, June has lower precipitation levels at 70 mm (2.8 in) over 11 days, compared to January's 81 mm (3.2 in) over 14 days. Humidity is also slightly lower in June at 81%, compared to January's 89%. For more detailed information about January weather, visit Castletown weather in January.

June and February present contrasting weather patterns. In June, temperatures range from a minimum of 9°C (49°F) to a pleasant maximum of 17°C (64°F), with an average temperature of 13°C (55°F). Although June is relatively drier, with 70 mm (2.8 in) of precipitation over approximately 11 days, the humidity remains high at 81%. In contrast, February is colder, with temperatures fluctuating between 1°C (34°F) and 12°C (54°F), averaging just 7°C (45°F). This month sees more precipitation, totaling 106 mm (4.2 in) over 18 days, coupled with an even higher humidity level of 88%. If you want to learn more about Castletown's February weather, you can visit Castletown weather in February.

June typically experiences milder temperatures compared to March, with averages ranging from a minimum of 9°C (49°F) to a maximum of 17°C (64°F), while March sees colder temperatures, with averages from -1°C (30°F) to 11°C (52°F). Despite June having slightly less precipitation at 70 mm (2.8 in) over 11 days, it is generally drier than March, which records 87 mm (3.4 in) across 18 days, contributing to its higher humidity of 86%. For a detailed look at March weather, you can visit Castletown weather in March.

In comparing the weather between June and April, June typically showcases a warmer climate, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 17°C (64°F). In contrast, April has cooler temperatures, with averages between 3°C (38°F) and 13°C (56°F). Additionally, June experiences higher precipitation levels at 70 mm (2.8 in) over 11 days, compared to April's relatively lower 36 mm (1.4 in) over 8 days. While humidity remains quite high in both months, June slightly trails April with humidity levels of 81% versus April's 84%. For a more detailed look at April's weather, you can visit Castletown weather in April.

When comparing the weather in May and June, June generally experiences slightly higher temperatures, with a minimum of 9°C (49°F), an average of 13°C (55°F), and a maximum of 17°C (64°F), compared to May's minimum of 5°C (42°F), average of 10°C (51°F), and maximum of 16°C (60°F). June also sees more precipitation, totaling 70 mm (2.8 in) over 11 days, while May receives 44 mm (1.7 in) over 9 days. Additionally, humidity levels in June are slightly higher at 81% compared to May's 79%. For more detailed insights on the weather in May, you can check Castletown weather in May.

In June, the weather features cooler temperatures with a minimum of 9°C (49°F) and an average of 13°C (55°F), peaking at 17°C (64°F). This month experiences significant rainfall, totaling 70 mm (2.8 in) over 11 days, accompanied by high humidity levels of 81%. In contrast, July sees a slight increase in temperatures, with a minimum of 12°C (53°F), an average of 14°C (58°F), and a maximum of 19°C (67°F). While July also records 70 mm (2.8 in) of precipitation, it occurs over 12 days, and humidity drops to 78%. For more detailed information about July weather, visit Castletown weather in July.

In comparing the weather between June and August, June generally experiences cooler temperatures, with a minimum of 9°C (49°F) and an average of 13°C (55°F), while August sees slightly warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to an average of 15°C (59°F). Precipitation is also more prevalent in August, with 94 mm (3.7 in) falling over 15 days compared to June's 70 mm (2.8 in) over 11 days. Humidity levels remain fairly similar, with June at 81% and August slightly lower at 79%. For more detailed insights about August weather, visit Castletown weather in August.

June and September feature mild temperatures, but September tends to be slightly warmer overall. In June, temperatures range from a minimum of 9°C (49°F) to a maximum of 17°C (64°F), with an average of 13°C (55°F) and humidity levels around 81%. In contrast, September offers minimum temperatures of 10°C (51°F) and maximums reaching 19°C (67°F), resulting in a higher average of 14°C (58°F) and increased humidity at 85%. Precipitation is also more frequent in September, with 91 mm (3.6 in) of rainfall over 14 days, compared to June's 70 mm (2.8 in) over just 11 days. For a more detailed look at the weather in September, check out Castletown weather in September.

June and October offer similar average temperatures, hovering around 13°C (55°F), but they differ significantly in terms of precipitation and humidity. In June, the weather is relatively mild with a maximum temperature reaching 17°C (64°F) and only 70 mm (2.8 in) of rain over 11 days; however, humidity is at a comfortable 81%. In contrast, October experiences a slight decrease in the minimum temperature to 7°C (45°F) and an increase in precipitation to 142 mm (5.6 in) spread across 18 days, along with a higher humidity level of 90%. For a detailed look at October conditions, you can visit Castletown weather in October.

June and November present distinct contrasts in weather patterns. In June, temperatures range from a minimum of 9°C (49°F) to a maximum of 17°C (64°F), with an average of 13°C (55°F). The month experiences about 70 mm (2.8 in) of precipitation across 11 days and boasts a relatively lower humidity of 81%. In contrast, November brings cooler temperatures, with a minimum of 6°C (43°F), an average of 10°C (51°F), and a maximum of 14°C (58°F). It is also significantly wetter, receiving 143 mm (5.6 in) of rainfall over 20 days, and higher humidity levels at 91%. For those interested in a closer look at the weather in November, please visit Castletown weather in November.

In June, the weather is generally milder with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 17°C (64°F) and an average temperature of 13°C (55°F). The month sees about 70 mm (2.8 in) of precipitation over approximately 11 days, accompanied by a humidity level of 81%. In contrast, December temperatures dip further, with a minimum of 4°C (39°F) and a maximum of 13°C (56°F), resulting in a lower average of 9°C (48°F). This month experiences significantly higher rainfall, totaling 144 mm (5.7 in) across around 22 days, and a higher humidity level of 89%. For a more detailed look at December's weather, visit Castletown weather in December.

Compare Castletown's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Castletown

As June unfolds in Castletown, it brings a refreshing shift in weather compared to other months. With maximum temperatures reaching 17°C (64°F), the days start to feel comfortably warm, inviting outdoor activities and exploration. While the average temperature hovers around a pleasant 13°C (55°F), the warmth is offset by the high humidity at 81%, creating a vibrant, lush atmosphere. However, be prepared for occasional rainfall, as 11 days of precipitation contribute to a total of 70 mm (2.8 in) throughout the month. This mix of warmth and moisture sets June apart, capturing the transition from spring’s coolness to the warmth of summer. For a deeper dive into the weather patterns, explore Castletown Climate.