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April Weather in South Yarmouth, United States

Last updated: June 24, 2025

In South Yarmouth, United States, the average temperature in April is a brisk 7°C (46°F), where the mercury can dip as low as 1°C (33°F) and rise to a pleasant 16°C (60°F). Expect 137 mm (5.4 in) of precipitation over approximately 13 days, accompanied by an average humidity of 79%. Prepare accordingly for a blend of chilly days and potential rain!

April Temperature in South Yarmouth

In April in South Yarmouth, the average temperature is 7°C (46°F). The maximum can reach 16°C (60°F) and the minimum can be as low as 1°C (33°F). This climate makes South Yarmouth an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

April Weather in South Yarmouth: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in South Yarmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Yarmouth, April typically has an average temperature of 7°C (46°F), with highs reaching up to 16°C (60°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec353638455363707266594839
Data source: Temperature data for South Yarmouth 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 South Yarmouth

In South Yarmouth in April, the total precipitation amount reaches 137 mm (5.4 in) over the course of 13 days.

April Precipitation Trends in South Yarmouth

The chart displays monthly precipitation patterns in South Yarmouth, 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 South Yarmouth, April typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec94123118137119918382118175102136
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in South Yarmouth

In South Yarmouth in April, humidity is 79%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making any outdoor activity somewhat uncomfortable and urging travelers to dress in layers to stay warm and dry.

April Average Humidity in South Yarmouth

This chart illustrates the average monthly humidity levels in South Yarmouth, 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 South Yarmouth 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 South Yarmouth

In South Yarmouth 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 South Yarmouth.

Maximum UV Index Levels in South Yarmouth for April

The chart shows the monthly maximum UV Index (UVI) for South Yarmouth 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 South Yarmouth typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: South Yarmouth 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 South Yarmouth Compares to Other Months

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

This table compares monthly weather conditions in South Yarmouth, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)94 mm (3.7 inches)84%moderate
February Weather2°C (36°F)123 mm (4.8 inches)84%moderate
March Weather3°C (38°F)118 mm (4.7 inches)82%high
April Weather7°C (46°F)137 mm (5.4 inches)79%very high
May Weather12°C (53°F)119 mm (4.7 inches)75%very high
June Weather17°C (63°F)91 mm (3.6 inches)78%very high
July Weather21°C (71°F)83 mm (3.3 inches)76%very high
August Weather22°C (72°F)82 mm (3.2 inches)76%very high
September Weather19°C (67°F)118 mm (4.7 inches)75%very high
October Weather15°C (59°F)175 mm (6.9 inches)75%high
November Weather9°C (48°F)102 mm (4.0 inches)80%moderate
December Weather4°C (40°F)136 mm (5.4 inches)80%low

Compare South Yarmouth's Climate with Cities Worldwide