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April Weather in Portlaoise, Ireland

Last updated: August 23, 2025

In April, the average temperature in Portlaoise, Ireland hovers around 9°C (48°F). Be prepared for a chilly range, with minimums dropping to -3°C (27°F) and maximums reaching up to 21°C (69°F). Expect about 50 mm (2.0 in) of precipitation over approximately 10 days, and with an average humidity of 85%, it’s wise to pack accordingly!

April Temperature in Portlaoise

In April in Portlaoise, the average temperature is 9°C (48°F). The maximum can reach 21°C (69°F) while the minimum can drop as low as -3°C (27°F). Be prepared for a mix of mild and chilly weather during your travels.

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

The chart illustrates April temperature patterns in Portlaoise, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portlaoise, April typically has an average temperature of 9°C (48°F), with highs reaching up to 21°C (69°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475358615956514643
Data source: Temperature data for Portlaoise 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 Portlaoise

In Portlaoise in April, the precipitation amount is 50 mm (2.0 in) over a span of 10 days.

April Precipitation Trends in Portlaoise

The chart displays monthly precipitation patterns in Portlaoise, 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 Portlaoise, April typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec568881506668699466888498
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Portlaoise

In Portlaoise in April humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

April Average Humidity in Portlaoise

This chart illustrates the average monthly humidity levels in Portlaoise, 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 Portlaoise is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Portlaoise

In Portlaoise 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 Portlaoise.

Maximum UV Index Levels in Portlaoise for April

The chart shows the monthly maximum UV Index (UVI) for Portlaoise 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 Portlaoise typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Portlaoise 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 Portlaoise Compares to Other Months

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

This table compares monthly weather conditions in Portlaoise, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)56 mm (2.2 inches)85%low
February Weather6°C (43°F)88 mm (3.4 inches)86%low
March Weather7°C (44°F)81 mm (3.2 inches)86%moderate
April Weather9°C (48°F)50 mm (2.0 inches)85%moderate
May Weather11°C (53°F)66 mm (2.6 inches)83%high
June Weather14°C (58°F)68 mm (2.7 inches)85%very high
July Weather16°C (61°F)69 mm (2.7 inches)86%very high
August Weather15°C (60°F)94 mm (3.7 inches)85%high
September Weather13°C (56°F)66 mm (2.6 inches)86%moderate
October Weather10°C (51°F)87 mm (3.4 inches)87%moderate
November Weather8°C (46°F)84 mm (3.3 inches)86%low
December Weather6°C (44°F)98 mm (3.8 inches)84%low

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