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April Weather in Castlerea, Ireland

Last updated: August 23, 2025

In Castlerea, Ireland, the average temperature in April is a cool 9°C (48°F). Expect minimums dipping to -2°C (29°F) and maximums reaching up to 21°C (71°F). During this time, precipitation averages 62 mm (2.4 in) over 11 days, complemented by an average humidity level of 86%.

April Temperature in Castlerea

In April in Castlerea, the average temperature is 9°C (48°F), with maximums reaching 21°C (71°F) and minimums dropping as low as -2°C (29°F). This range makes it a perfect time for travelers to enjoy outdoor activities while being prepared for cooler evenings.

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

The chart illustrates April temperature patterns in Castlerea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castlerea, April typically has an average temperature of 9°C (48°F), with highs reaching up to 21°C (71°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344485357605955504543
Data source: Temperature data for Castlerea 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 Castlerea

In Castlerea in April, the precipitation amount is 62 mm (2.4 in) spread over 11 days.

April Precipitation Trends in Castlerea

The chart displays monthly precipitation patterns in Castlerea, 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. In Castlerea, April typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec74122101628292841358411699106
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Castlerea

In Castlerea in April, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

April Average Humidity in Castlerea

This chart illustrates the average monthly humidity levels in Castlerea, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Castlerea is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Castlerea

In Castlerea in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Castlerea.

Maximum UV Index Levels in Castlerea for April

The chart shows the monthly maximum UV Index (UVI) for Castlerea 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. In April, the maximum UV index in Castlerea typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Castlerea 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.

How April Weather in Castlerea Compares to Other Months

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

This table compares monthly weather conditions in Castlerea, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)74 mm (2.9 inches)88%low
February Weather6°C (43°F)122 mm (4.8 inches)88%low
March Weather7°C (44°F)101 mm (4.0 inches)87%moderate
April Weather9°C (48°F)62 mm (2.4 inches)86%moderate
May Weather11°C (53°F)82 mm (3.2 inches)83%high
June Weather14°C (57°F)92 mm (3.6 inches)83%very high
July Weather15°C (60°F)84 mm (3.3 inches)85%very high
August Weather15°C (59°F)135 mm (5.3 inches)85%high
September Weather13°C (56°F)83 mm (3.3 inches)88%moderate
October Weather10°C (51°F)116 mm (4.6 inches)91%moderate
November Weather7°C (46°F)99 mm (3.9 inches)92%low
December Weather6°C (44°F)106 mm (4.2 inches)89%low

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