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April Weather in Westerly, United States

Last updated: June 24, 2025

In April, the average temperature in Westerly, United States hovers around 9°C (48°F), with a minimum dipping to -2°C (29°F) and a maximum reaching 25°C (77°F). Expect approximately 125 mm (4.9 in) of precipitation spread over 12 days, accompanied by a high average humidity of 79%.

April Temperature in Westerly

In April in Westerly, the average temperature is 9°C (48°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -2°C (29°F). This climate makes Westerly a great destination for travelers seeking a mix of mild days and chilly nights, perfect for exploring the local sights.

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

The chart illustrates April temperature patterns in Westerly, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westerly, April typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (77°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec333539485867747367584537
Data source: Temperature data for Westerly 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 Westerly

In Westerly in April, the total precipitation amount is 125 mm (4.9 in) spread over 12 days.

April Precipitation Trends in Westerly

The chart displays monthly precipitation patterns in Westerly, 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 Westerly, April typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec73951011251119512810293134100125
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Westerly

In Westerly in April humidity is 79%. With an average temperature of 9°C (48°F), this humidity feels like a chilly mist wrapping around you, making outdoor activities brisk yet invigorating, but it can also leave you feeling damp and slightly chilled if you're not dressed appropriately for the conditions.

April Average Humidity in Westerly

This chart illustrates the average monthly humidity levels in Westerly, 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 Westerly is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Westerly

In Westerly 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 Westerly.

Maximum UV Index Levels in Westerly for April

The chart shows the monthly maximum UV Index (UVI) for Westerly 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 Westerly typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: Westerly 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 Westerly Compares to Other Months

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

This table compares monthly weather conditions in Westerly, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)73 mm (2.9 inches)84%moderate
February Weather2°C (35°F)95 mm (3.7 inches)84%moderate
March Weather4°C (39°F)101 mm (4.0 inches)82%high
April Weather9°C (48°F)125 mm (4.9 inches)79%very high
May Weather14°C (58°F)111 mm (4.4 inches)75%very high
June Weather20°C (68°F)95 mm (3.7 inches)78%very high
July Weather23°C (74°F)128 mm (5.0 inches)76%very high
August Weather23°C (74°F)102 mm (4.0 inches)76%very high
September Weather19°C (67°F)93 mm (3.7 inches)75%very high
October Weather14°C (58°F)134 mm (5.3 inches)75%high
November Weather7°C (46°F)100 mm (3.9 inches)80%moderate
December Weather3°C (37°F)125 mm (4.9 inches)80%low

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