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April Weather in Chatham, United States

Last updated: June 24, 2025

In Chatham, United States, the average temperature in April hovers around 18°C (65°F), providing a pleasant climate for visitors. However, be prepared for temperature fluctuations, with a minimum of 0°C (33°F) and a maximum reaching 31°C (88°F). Expect some rain, as 160 mm (6.3 in) of precipitation typically falls over 11 days, accompanied by an average humidity level of 79%. Make sure to pack accordingly!

April Temperature in Chatham

In April in Chatham, the average temperature is 18°C (65°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 0°C (33°F). This diverse range of temperatures makes it essential for travelers to pack accordingly, ensuring they are prepared for both warm days and cooler nights.

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

The chart illustrates April temperature patterns in Chatham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chatham, April typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec495261657480838279685652
Data source: Temperature data for Chatham 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 Chatham

In Chatham in April, the precipitation amount is 160 mm (6.3 in) over a span of 11 days.

April Precipitation Trends in Chatham

The chart displays monthly precipitation patterns in Chatham, 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 Chatham, April typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec110180125160138122971269011581128
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Chatham

In Chatham in April, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

April Average Humidity in Chatham

This chart illustrates the average monthly humidity levels in Chatham, 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 Chatham is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Chatham

In Chatham in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Chatham.

Maximum UV Index Levels in Chatham for April

The chart shows the monthly maximum UV Index (UVI) for Chatham 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 Chatham typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111112121110864
Data source: Chatham 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 Chatham Compares to Other Months

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

This table compares monthly weather conditions in Chatham, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)110 mm (4.3 inches)82%moderate
February Weather11°C (53°F)180 mm (7.1 inches)80%high
March Weather16°C (62°F)125 mm (4.9 inches)78%very high
April Weather18°C (65°F)160 mm (6.3 inches)79%extreme
May Weather24°C (75°F)138 mm (5.4 inches)81%extreme
June Weather27°C (80°F)122 mm (4.8 inches)77%extreme
July Weather28°C (83°F)97 mm (3.8 inches)72%extreme
August Weather28°C (83°F)125 mm (4.9 inches)65%extreme
September Weather26°C (79°F)90 mm (3.5 inches)63%very high
October Weather20°C (69°F)115 mm (4.5 inches)70%very high
November Weather13°C (56°F)81 mm (3.2 inches)82%high
December Weather11°C (53°F)128 mm (5.0 inches)88%moderate

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