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April Weather in Harbor Isle, United States

Last updated: June 24, 2025

In Harbor Isle, United States, the average temperature in April hovers around 10°C (50°F), with a minimum dipping to 0°C (32°F) and a maximum reaching 25°C (77°F). Expect 126 mm (5.0 in) of precipitation spread over 12 days, contributing to an average humidity of 78%. Be prepared for a mix of brisk and damp conditions!

April Temperature in Harbor Isle

In April in Harbor Isle, the average temperature is 10°C (50°F). Maximums can reach 25°C (77°F), and minimums can be as low as 0°C (32°F). This pleasant climate makes Harbor Isle an ideal destination for travelers seeking both warmth and cool respite.

April Weather in Harbor Isle: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Harbor Isle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harbor Isle, April typically has an average temperature of 10°C (50°F), with highs reaching up to 25°C (77°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec363741505969777570624841
Data source: Temperature data for Harbor Isle 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 Harbor Isle

In Harbor Isle in April, the precipitation amount is 126 mm (5.0 in) over the course of 12 days.

April Precipitation Trends in Harbor Isle

The chart displays monthly precipitation patterns in Harbor Isle, 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 Harbor Isle, April typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec801271071261268612711697145101133
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Harbor Isle

In Harbor Isle in April humidity is 78%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that can seep into your clothes, making outdoor activities less enjoyable and requiring extra layers to stay warm as you explore the area.

April Average Humidity in Harbor Isle

This chart illustrates the average monthly humidity levels in Harbor Isle, 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 Harbor Isle is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Harbor Isle

In Harbor Isle in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Harbor Isle.

Maximum UV Index Levels in Harbor Isle for April

The chart shows the monthly maximum UV Index (UVI) for Harbor Isle 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 Harbor Isle typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Harbor Isle 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 Harbor Isle Compares to Other Months

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

This table compares monthly weather conditions in Harbor Isle, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)80 mm (3.2 inches)84%moderate
February Weather3°C (38°F)127 mm (5.0 inches)82%moderate
March Weather5°C (42°F)106 mm (4.2 inches)81%high
April Weather10°C (50°F)126 mm (5.0 inches)78%very high
May Weather15°C (59°F)126 mm (5.0 inches)69%very high
June Weather21°C (69°F)86 mm (3.4 inches)69%very high
July Weather25°C (77°F)127 mm (5.0 inches)62%very high
August Weather24°C (76°F)116 mm (4.6 inches)65%very high
September Weather21°C (71°F)97 mm (3.8 inches)68%very high
October Weather16°C (62°F)144 mm (5.7 inches)74%high
November Weather9°C (49°F)101 mm (4.0 inches)82%moderate
December Weather5°C (41°F)133 mm (5.2 inches)80%low

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