nomadseason

April Weather in Charlestown, Ireland

Last updated: August 23, 2025

In April, the average temperature in Charlestown, Ireland hovers around 9°C (48°F). Expect chilly nights with a minimum drop to -2°C (29°F) and mild daytime highs reaching up to 21°C (70°F). Be prepared for some wet days, as precipitation averages 65 mm (2.6 in) over the course of 12 days. With an average humidity of 86%, layers are a smart choice for this season!

April Temperature in Charlestown

In April in Charlestown, the average temperature is 9°C (48°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -2°C (29°F). This variation makes it a great time for travelers to enjoy both mild days and cozy evenings.

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

The chart illustrates April temperature patterns in Charlestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charlestown, April typically has an average temperature of 9°C (48°F), with highs reaching up to 21°C (70°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475256595855504643
Data source: Temperature data for Charlestown 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.

April Precipitation in Charlestown

In Charlestown in April, the precipitation amount is 65 mm (2.6 in) over the course of 12 days.

April Precipitation Trends in Charlestown

The chart displays monthly precipitation patterns in Charlestown, 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 Charlestown, April typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec791241076582989614790120104109
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Charlestown

In Charlestown 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 Charlestown

This chart illustrates the average monthly humidity levels in Charlestown, 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 Charlestown 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 Charlestown

In Charlestown 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 Charlestown.

Maximum UV Index Levels in Charlestown for April

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

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

This table compares monthly weather conditions in Charlestown, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)79 mm (3.1 inches)88%low
February Weather6°C (43°F)124 mm (4.9 inches)88%low
March Weather6°C (44°F)107 mm (4.2 inches)87%moderate
April Weather9°C (48°F)65 mm (2.6 inches)86%moderate
May Weather11°C (53°F)82 mm (3.2 inches)83%high
June Weather13°C (56°F)98 mm (3.8 inches)83%very high
July Weather15°C (59°F)96 mm (3.8 inches)85%very high
August Weather15°C (59°F)147 mm (5.8 inches)85%high
September Weather13°C (55°F)90 mm (3.5 inches)88%moderate
October Weather10°C (50°F)120 mm (4.7 inches)91%moderate
November Weather8°C (46°F)104 mm (4.1 inches)92%low
December Weather6°C (44°F)109 mm (4.3 inches)89%low

Compare Charlestown's Climate with Cities Worldwide