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April Weather in Chelsea, United States

Last updated: June 24, 2025

In Chelsea, United States, the average temperature in April hovers around 15°C (59°F). However, temperatures can fluctuate dramatically, with a minimum dipping to -4°C (25°F) and a maximum soaring to 32°C (90°F). Expect precipitation totaling 139 mm (5.5 in) over 11 days, accompanied by an average humidity level of 73%. Stay prepared for a mix of weather conditions!

April Temperature in Chelsea

In April in Chelsea, the average temperature is 15°C (59°F), with maximums reaching 32°C (90°F) and minimums dropping as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and chilly nights.

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

The chart illustrates April temperature patterns in Chelsea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chelsea, April typically has an average temperature of 15°C (59°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec384053596979828076625044
Data source: Temperature data for Chelsea 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 Chelsea

In Chelsea in April, the precipitation amount is 139 mm (5.5 in) occurring over a span of 11 days.

April Precipitation Trends in Chelsea

The chart displays monthly precipitation patterns in Chelsea, 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 Chelsea, April typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec766812213920410397113911395350
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Chelsea

In Chelsea in April humidity is 73%. With an average temperature of 15°C (59°F), this humidity feels like a mild discomfort, making sightseeing a bit sticky and requiring travelers to stay hydrated and take breaks in the shade.

April Average Humidity in Chelsea

This chart illustrates the average monthly humidity levels in Chelsea, 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 Chelsea is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Chelsea

In Chelsea in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Chelsea.

Maximum UV Index Levels in Chelsea for April

The chart shows the monthly maximum UV Index (UVI) for Chelsea 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 Chelsea typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Chelsea 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 Chelsea Compares to Other Months

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

This table compares monthly weather conditions in Chelsea, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)76 mm (3.0 inches)77%moderate
February Weather5°C (41°F)68 mm (2.7 inches)76%high
March Weather12°C (53°F)122 mm (4.8 inches)71%high
April Weather15°C (59°F)139 mm (5.5 inches)73%very high
May Weather21°C (69°F)204 mm (8.0 inches)83%very high
June Weather26°C (79°F)103 mm (4.1 inches)83%extreme
July Weather28°C (82°F)97 mm (3.8 inches)81%extreme
August Weather27°C (80°F)113 mm (4.4 inches)73%very high
September Weather24°C (76°F)91 mm (3.6 inches)67%very high
October Weather16°C (62°F)139 mm (5.5 inches)72%high
November Weather10°C (50°F)53 mm (2.1 inches)82%moderate
December Weather7°C (44°F)50 mm (2.0 inches)85%moderate

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