April Weather in Castlewellan, United Kingdom

Last updated: March 17, 2025

In Castlewellan, United Kingdom, April brings a delightful mix of spring warmth and refreshing showers. With maximum temperatures reaching 16°C (61°F) and an average temperature around 8°C (47°F), the month offers a pleasant escape from winter's chill, while minimum nights can drop to 0°C (32°F). Rain is a frequent companion, contributing 47 mm (1.8 in) of precipitation across 9 days. Coupled with high humidity levels at 85%, the air is often crisp and invigorating, setting the stage for blossoming landscapes and vibrant outdoor activities.

April Temperature in Castlewellan

In April, Castlewellan experiences a refreshing transition as temperatures begin to rise, with minimums settling around 0°C (32°F) and maximums reaching 16°C (61°F). This month marks a gradual shift from the chill of winter, as the average temperature climbs to 8°C (47°F), making the days notably milder compared to the earlier months. The trend reflects a clear move towards spring, encouraging outdoor activities amidst blossoming nature. As the cold grips loosen their hold, residents and visitors alike can enjoy the pleasant weather that April offers, heralding longer and brighter days ahead.

April Weather in Castlewellan: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Castlewellan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434344475257605956524744
Data source: Temperature data for Castlewellan 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.

April Precipitation in Castlewellan

April in Castlewellan, United Kingdom, offers a refreshing respite from the wetter winter months, as it experiences 47 mm (1.8 in) of precipitation over just 9 days. This marked reduction in both rainfall and rainy days compared to March—when the area saw 92 mm over 16 days—highlights a notable shift toward drier weather as spring progresses. As the landscape begins to bloom, the softer April showers contribute to the vibrant greenery, making it a delightful time for outdoor activities. However, it's still a time to prepare for the heavier rainfall typical of the coming summer months. Overall, April balances between the lush awakening of nature and the lingering chill of early spring, setting the stage for the warmer, wetter days ahead.

April Precipitation Trends in Castlewellan

The chart displays monthly precipitation patterns in Castlewellan, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6899924766788512083104113104
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Castlewellan

In April, Castlewellan experiences a slight dip in humidity, averaging 85%, continuing the trend of high moisture levels characteristic of this charming region. The humidity begins to decrease gradually from the winter months, where January and February recorded 87% and 86%, respectively. This decline hints at the arrival of spring, as temperatures rise and the air becomes more refreshing. As the month transitions towards May, humidity continues its downward trend, hitting 82%, setting the stage for warmer, drier days ahead. However, the overall pattern shows Castlewellan remains a humid locale throughout the year, with the summer months bringing a resurgence in moisture levels.

April Average Humidity in Castlewellan

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

April UV Index in Castlewellan

As April arrives in Castlewellan, the UV Index rises to 5, marking a shift from the mild winter months to a more moderate exposure level. With a burn time of just 30 minutes, it's important to take precautions as the sun becomes more potent. This trend of increasing UV levels is consistent with the transition from March's Index of 4, setting the stage for even higher values in the coming months, particularly May's peak at 7. As you enjoy the blossoming spring scenery, remember to stay protected and informed about the changing UV conditions. For more insights, check out Castlewellan UV Index.

Maximum UV Index Levels in Castlewellan for April

The chart shows the monthly maximum UV Index (UVI) for Castlewellan in April, 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: Castlewellan April 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.

April Sunshine in Castlewellan

April in Castlewellan, United Kingdom, welcomes a delightful surge of sunshine, boasting an impressive 322 hours of daylight. This marks a significant leap from the cooler months, where January saw a mere 81 hours and February a modest 150 hours. As spring unfolds, March also enjoyed a healthy 209 hours, but it's April that truly shines, setting the tone for the vibrant month of May, which captures a stunning 403 hours of sunlight. The increase in daylight hours not only brightens the landscape but also signals the arrival of warmer days, inviting residents and visitors alike to embrace outdoor activities amidst the blooming scenery. As the year progresses into the summer months, sunshine remains fairly steady, with June through August each offering between 349 to 399 hours, before tapering off into the autumn shades of September and beyond.

Monthly Sunshine Duration in Castlewellan: April Highlighted

The April sunshine duration represents the total number of hours Castlewellan experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec81h150h209h322h403h394h399h349h295h232h115h87h
Data source: Castlewellan April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castlewellan During April

In Castlewellan, United Kingdom, April brings a welcome shift in the weather, with a 43% chance of sunny days, making it one of the brightest months of the year. This increase in sunshine marks a notable rise from the previous months, when the chances hovered between 21% and 28%. As winter fades, April's sunnier disposition not only invites outdoor activities but also hints at the blossoming beauty of spring. This trend continues into May, albeit with a slight dip to 35%, making April a compelling time for those eager to soak in the sun before summer truly begins.

Percentage of Sunny Days in April in Castlewellan

The chart illustrates the percentage of sunny days in Castlewellan throughout the year, with April 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 Castlewellan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%22%21%43%35%24%32%23%21%19%23%16%
Data source: Castlewellan April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castlewellan in April

As April unfolds in Castlewellan, the transformation in daylight is nothing short of striking. With an impressive average of 14 hours of daylight, this month marks a significant leap from the 11 hours seen in March, heralding the arrival of longer, sunnier days. This upward trend continues into May, which enjoys even 16 hours of daylight, creating a gradual crescendo toward the luminous peak of summer in June with 17 hours. As the year progresses, the decreasing daylight in the following months brings a reminder of the cycles of time, but in April, nature's awakening shines brightly, offering residents ample opportunity to revel in the longer days and the blossoming beauty of spring.

Average Daylight Hours in Castlewellan for April

The chart illustrates the variation in daylight duration in Castlewellan throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 58m9h 45m11h 54m14h 6m16h 3m17h 5m16h 31m14h 46m12h 38m10h 27m8h 28m7h 24m
Data source: Castlewellan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Castlewellan

In April, the winds in Castlewellan take a gentle turn, with an average speed of 3.9 m/s (9 mph), making it one of the calmer months compared to the hustle of earlier spring. After the brisk gusts of February at 6.9 m/s (16 mph), April's winds begin to soften, providing a serene backdrop for the unfolding spring scenery. This trend of diminishing wind speeds continues into the summer months, peaking in July with a light 2.9 m/s (7 mph). As we transition back to autumn, wind speeds gradually increase again, showcasing the characteristic ebb and flow of Castlewellan's wind throughout the year. The calm of April encourages outdoor exploration, inviting locals and visitors alike to enjoy the fresh air and blooming landscapes.

Average April Wind Speed in Castlewellan

The chart displays monthly wind speed patterns in Castlewellan, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.06.95.33.9 m/s4.44.22.93.73.95.45.55.6
Data source: Castlewellan April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Castlewellan Compares to Other Months

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

In comparing the weather between April and January, we observe a notable difference in temperatures and precipitation patterns. April generally experiences milder temperatures, with a minimum of 0°C (32°F) and a maximum of 16°C (61°F), leading to an average of 8°C (47°F). In contrast, January's temperatures are cooler, ranging from a minimum of -2°C (29°F) to a maximum of 13°C (56°F) and averaging 6°C (43°F).

Precipitation is also more prevalent in January, with 68 mm (2.7 in) over 12 days compared to April's 47 mm (1.8 in) spread across 9 days. Humidity levels are similar, hovering around 85% in April and slightly higher at 87% in January. For a detailed look at January's weather in Castlewellan, you can visit Castlewellan weather in January.

When comparing the weather in April and February, April offers a marked improvement in temperature, with averages rising to 8°C (47°F) compared to February's average of 6°C (43°F). The maximum temperatures in April also reach up to 16°C (61°F), significantly warmer than February's maximum of 12°C (55°F). However, February experiences a greater amount of precipitation, with 99 mm (3.9 in) over 17 days versus April's 47 mm (1.8 in) over just 9 days. Humidity levels are similar, with February slightly higher at 86% compared to April's 85%. For those interested in more detailed information, you can check Castlewellan weather in February.

In comparing the weather of April and March, we see that April tends to be slightly warmer, with minimum temperatures around 0°C (32°F) and a maximum of 16°C (61°F), while March experiences cooler minimum temperatures of -3°C (27°F) and a maximum of 14°C (58°F). Average temperatures in April reach 8°C (47°F) compared to March's 7°C (44°F). However, April also sees less precipitation, with 47 mm (1.8 in) over 9 days, in contrast to March's significantly higher 92 mm (3.6 in) spread over 16 days. Humidity levels are quite similar, with April at 85% and March at 86%. For more detailed insights, you can check Castlewellan weather in March.

April weather is characterized by cooler temperatures, with a minimum of 0°C (32°F) and an average of 8°C (47°F), while May shows a noticeable warming trend, featuring a minimum of 2°C (35°F) and an average of 11°C (52°F). In terms of precipitation, April experiences 47 mm (1.8 in) over 9 days, whereas May sees an increase to 66 mm (2.6 in) across 12 days, indicating that May might be slightly wetter despite the warmer conditions. Additionally, humidity levels in April are a bit higher at 85%, compared to 82% in May. For more detailed information about May weather, you can check Castlewellan weather in May.

In April, temperatures range from a chilly minimum of 0°C (32°F) to a mild maximum of 16°C (61°F), with an average of 8°C (47°F). The month sees about 47 mm (1.8 in) of precipitation over nine days, and humidity levels are relatively high at 85%. In contrast, June offers a warmer climate, with temperatures starting at a minimum of 7°C (44°F) and peaking at 24°C (75°F), averaging 14°C (57°F). However, June experiences more rainfall, totaling 78 mm (3.1 in) over 14 days, while humidity remains slightly lower at 84%. For a more detailed overview, you can check out Castlewellan weather in June.

April and July present distinct contrasts in weather. In April, temperatures range from a chilly minimum of 0°C (32°F) to a mild maximum of 16°C (61°F), with an average of 8°C (47°F). The month sees about 47 mm (1.8 in) of precipitation over approximately 9 days, accompanied by high humidity levels around 85%. In contrast, July features significantly warmer temperatures, with a minimum of 9°C (48°F) and a maximum reaching 24°C (76°F), averaging 15°C (60°F). Precipitation increases to 85 mm (3.3 in) over approximately 14 days, while humidity remains notably high at 86%. For more detailed information on July weather, you can visit Castlewellan weather in July.

April and August exhibit contrasting weather patterns, often reflecting the transition from spring to late summer. In April, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 16°C (61°F), with an average of 8°C (47°F). The month sees about 47 mm (1.8 in) of precipitation over 9 days, coupled with a high humidity level of 85%. In comparison, August boasts warmer conditions, with a minimum of 9°C (48°F), an average of 15°C (59°F), and a peak of 21°C (69°F). However, it also experiences significantly more rain, totaling 120 mm (4.7 in) across 18 days, with humidity slightly higher at 86%. For more detailed information on weather conditions, you can check Castlewellan weather in August.

April and September exhibit contrasting weather patterns, characterized by their respective temperatures and precipitation levels. In April, temperatures range from a chilly 0°C (32°F) at night to a mild high of 16°C (61°F) during the day, with an average of 8°C (47°F). The month also sees an average precipitation of 47 mm (1.8 in) over approximately 9 days, accompanied by high humidity at 85%. In contrast, September enjoys slightly warmer temperatures, with minimums around 5°C (41°F) and maximums reaching 20°C (69°F), averaging 13°C (56°F). However, this month experiences more rain, totaling 83 mm (3.3 in) over about 16 days, and slightly higher humidity at 88%. For a detailed look into September's climate, you can check Castlewellan weather in September.

April and October present distinct weather profiles, with both months experiencing relatively cool temperatures but notable differences in precipitation and humidity. In April, temperatures range from a chilly 0°C (32°F) at night to a mild 16°C (61°F) during the day, accompanied by 47 mm (1.8 in) of rain over about 9 days. Conversely, October sees slightly warmer minimum temperatures, starting at 2°C (37°F) and peaking at 18°C (64°F), but it is significantly wetter, with 104 mm (4.1 in) of rainfall spread over 17 days. Additionally, October tends to be slightly more humid, averaging 89% compared to April's 85%. For more detailed insights into October’s climatic conditions, check out the following link: Castlewellan weather in October.

April and November showcase a noticeable difference in weather patterns despite having similar average temperatures. In April, the minimum temperature hovers around 0°C (32°F) with a maximum reaching 16°C (61°F), accompanied by 47 mm (1.8 in) of precipitation over 9 days, and humidity levels at 85%. In contrast, November features slightly warmer temperatures, with a minimum of 1°C (34°F) and a maximum of 14°C (58°F), but it is much wetter, accumulating 113 mm (4.5 in) of precipitation across 16 days and exhibiting higher humidity at 90%. For more details, visit Castlewellan weather in November.

When comparing the weather in April and December, both months exhibit cool temperatures, but December tends to be wetter and slightly more humid. In April, temperatures range from a minimum of 0°C to a maximum of 16°C, with an average of 8°C and 47 mm of precipitation over about 9 days. In contrast, December features lower maximum temperatures, reaching only up to 13°C, with an average of 7°C, and experiences significantly higher precipitation at 104 mm across 14 days, leading to a humidity level of 86%. For a more detailed look at December's weather, you can visit Castlewellan weather in December.

Compare Castlewellan's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Castlewellan

As April unfolds in Castlewellan, the weather begins to transition towards the gentler warmth of spring, standing in contrast to the chill of winter months. With temperatures gradually rising, April boasts a refreshing average that is notably higher than the frosty lows experienced earlier in the year. However, persistent humidity at around 85% paired with occasional rainfall can create a brisk atmosphere, reminding us that the month is still evolving from winter’s grasp. This blend of mild temperatures and moisture serves as a perfect backdrop for the budding foliage and vibrant landscapes that characterize this time of year. For a deeper understanding of the seasonal trends, explore more at Castlewellan Climate.