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April Weather in Sligo, United States

Last updated: June 24, 2025

In April, the average temperature in Sligo, United States hovers around 9°C (49°F). Expect a chilly minimum of -5°C (23°F) and occasional warm spells reaching up to 28°C (83°F). With 136 mm (5.3 in) of precipitation spread over 15 days, you might want to bring an umbrella! The air is quite humid too, averaging a damp 88%—perfect for those who enjoy a cozy atmosphere.

April Temperature in Sligo

In April in Sligo, the average temperature is 9°C (49°F). Maximums can reach 28°C (83°F), while minimums can be as low as -5°C (23°F). Be prepared for both warm and chilly weather during your travels.

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

The chart illustrates April temperature patterns in Sligo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sligo, April typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (83°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec283239496068737165554034
Data source: Temperature data for Sligo 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 Sligo

In Sligo in April, the precipitation amount is 136 mm (5.3 in) over a span of 15 days.

April Precipitation Trends in Sligo

The chart displays monthly precipitation patterns in Sligo, 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 Sligo, April typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec101119106136158139151110126130101103
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sligo

In Sligo in April, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

April Average Humidity in Sligo

This chart illustrates the average monthly humidity levels in Sligo, 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 Sligo is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sligo

In Sligo in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sligo.

Maximum UV Index Levels in Sligo for April

The chart shows the monthly maximum UV Index (UVI) for Sligo 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 Sligo typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Sligo 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 Sligo Compares to Other Months

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

This table compares monthly weather conditions in Sligo, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)101 mm (4.0 inches)89%moderate
February Weather0°C (33°F)119 mm (4.7 inches)90%moderate
March Weather4°C (39°F)106 mm (4.2 inches)89%high
April Weather9°C (49°F)136 mm (5.3 inches)88%very high
May Weather16°C (60°F)158 mm (6.2 inches)80%very high
June Weather20°C (68°F)139 mm (5.5 inches)79%very high
July Weather23°C (73°F)151 mm (6.0 inches)74%very high
August Weather22°C (71°F)110 mm (4.3 inches)64%very high
September Weather18°C (65°F)126 mm (5.0 inches)67%very high
October Weather13°C (55°F)130 mm (5.1 inches)81%high
November Weather4°C (40°F)101 mm (4.0 inches)89%moderate
December Weather1°C (34°F)103 mm (4.1 inches)88%low

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