April Weather in Hyannis, United States

Last updated: February 24, 2025

In April, Hyannis, United States experiences a transition from the chilly grip of winter to the mild embrace of spring. The maximum temperature reaches a pleasant 16°C (60°F), while the average hovers around 7°C (46°F), with nighttime temperatures dipping to a brisk 1°C (33°F). During this month, rainfall is a significant aspect of the weather, with a total of 137 mm (5.4 in) spread over 13 days, contributing to a humidity level of 79%. This combination of temperatures and precipitation creates a vibrant, refreshing atmosphere, perfect for witnessing the awakening of nature.

April Temperature in Hyannis

As April arrives in Hyannis, temperatures begin to shift noticeably, signaling the welcome onset of spring. The minimum temperature rises to a mild 1°C (33°F), contrasting sharply with the biting cold of earlier months, while the average temperature climbs to 7°C (46°F). Residents can enjoy pleasant afternoons as highs reach up to 16°C (60°F), providing a perfect backdrop for outdoor activities. This transition from the wintry chill of March—with its maximum temperature hovering around 13°C (56°F)—highlights April's role as a bridge to warmer days ahead. As nature awakens, the evolving climate invites both locals and visitors to embrace the blossoming season, laying the groundwork for the even more temperate months that follow in May and June.

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

The chart illustrates April temperature patterns in Hyannis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353638455363707266594839
Data source: Temperature data for Hyannis generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Hyannis

In April, Hyannis experiences a notable uptick in precipitation, with 137 mm (5.4 inches) of rain spread over 13 days. This marks it as the wettest month in the early part of the year, surpassing March's 118 mm (4.7 inches) despite having only three additional days of rainfall. The increase in precipitation is a precursor to the warmer, drier months ahead, as both May and June see a decrease, with May receiving 119 mm (4.7 inches) and June dropping even further to 91 mm (3.6 inches). This trend indicates a transition to spring, as April's rain nourishes the blossoming flora, setting a vibrant stage for the coming summer.

April Precipitation Trends in Hyannis

The chart displays monthly precipitation patterns in Hyannis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec94123118137119918382118175102136
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hyannis

In April, humidity in Hyannis, United States begins to show a noticeable decline, dropping to 79% from the 82% recorded in March. This shift marks a continued easing of moisture in the air as spring unfolds, paving the way for drier days ahead. Following this trend, May further decreases to 75%, and June hovers slightly higher at 78%. Overall, the transition from winter to summer is characterized by a gradual reduction in humidity, creating a more comfortable climate for residents and visitors alike as they embrace the warmer months.

April Average Humidity in Hyannis

This chart illustrates the average monthly humidity levels in Hyannis, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
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 Hyannis

As April arrives in Hyannis, residents and visitors alike should be prepared for a noticeable increase in UV exposure. With a UV Index of 8 categorized as very high, the risk of harm from unprotected sun exposure sharply rises, leading to a burn time of just 15 minutes. This marks a significant jump from March’s UV Index of 6, emphasizing the importance of sun protection as warmer days approach. The trend will continue into May, where the index peaks at 9, highlighting the need for vigilance during the peak sun hours. For those looking to enjoy the outdoors, check out the detailed UV forecast at Hyannis UV Index to stay safe and protected.

Maximum UV Index Levels in Hyannis for April

The chart shows the monthly maximum UV Index (UVI) for Hyannis 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.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Hyannis 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.

April Sunshine in Hyannis

April in Hyannis dazzles with 243 hours of sunshine, marking a transition from the crisp beginnings of the year into the vibrant promise of spring. Following the steady increase from a chilly 142 hours in January to a blossoming 258 hours in March, April continues this upward trend, albeit at a slightly slower pace. As the days grow longer and warmer, residents and visitors alike can relish the beautiful weather that paves the way for even sunnier months ahead—**May welcomes a generous 298 hours, setting the stage for a summer filled with dazzling days and joyful outdoor activities. This month not only signals the return of warmth but also emphasizes the gradual buildup of light, offering a glimpse of the sun-soaked summer that follows.

Monthly Sunshine Duration in Hyannis: April Highlighted

The April sunshine duration represents the total number of hours Hyannis experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec142h184h258h243h298h326h346h330h280h236h203h165h
Data source: Hyannis April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hyannis During April

April in Hyannis brings a promising 43% chance of sunny weather, making it a delightful transition from the chill of winter. This month follows March’s significant spike to 57%, hinting that spring is truly in the air. However, April's sunshine is not as abundant as one might hope, falling just below the averages of the preceding and succeeding months. Interestingly, while May and June hover around the 40% mark, they do not reach the sunniest heights of March, creating an intriguing pattern of variability as the seasons shift. Overall, visitors can expect more sunny spells than in the depths of winter, but it's wise to be prepared for those classic April showers as well!

Percentage of Sunny Days in April in Hyannis

The chart illustrates the percentage of sunny days in Hyannis throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Hyannis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%28%57%43%41%38%37%35%49%44%52%28%
Data source: Hyannis April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hyannis in April

As spring unfolds in Hyannis, United States, April shines brightly with an impressive 13 hours of daylight. This marks a significant increase from the 11 hours observed in March, highlighting the transition into longer, sunnier days. The gradual lengthening of daylight hours, which begins in January with only 9 hours, creates a captivating upward trend that continues into May and June, peaking at 15 hours. This surge of light fosters a vibrant atmosphere, encouraging outdoor activities and a renewed appreciation for nature. As the seasons progress, Hyannis basks in the warmth of longer days, drawing residents and visitors alike to revel in the beauty of spring.

Average Daylight Hours in Hyannis for April

The chart illustrates the variation in daylight duration in Hyannis throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 31m10h 36m11h 58m13h 22m14h 33m15h 8m14h 49m13h 45m12h 25m11h 1m9h 48m9h 11m
Data source: Hyannis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Hyannis

In April, the winds in Hyannis, United States, gradually begin to soften, with average speeds dropping to 6.5 m/s (15 mph), making it the calmest month so far this year. This decrease in wind strength contrasts with the earlier months of January through March, where average speeds hovered between 7.0 m/s (16 mph) and 7.2 m/s (16 mph). As spring progresses, we see a continuing trend toward gentler breezes, with May following closely at 5.9 m/s (13 mph). This seasonal shift not only invites a more serene atmosphere but also signals the transition to warmer months, where the winds become progressively milder, creating an idyllic setting for outdoor pursuits along the coast.

Average April Wind Speed in Hyannis

The chart displays monthly wind speed patterns in Hyannis, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.17.27.06.5 m/s5.96.25.24.85.96.66.76.6
Data source: Hyannis April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Hyannis Compares to Other Months

The weather in Hyannis changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Hyannis and find detailed weather information for every month.

April weather exhibits a notable contrast to that of January. While January temperatures can plummet to a minimum of -14°C (6°F), April enjoys milder conditions with a minimum of only 1°C (33°F). The average temperature in April rises to 7°C (46°F), substantially warmer than January's average of 2°C (36°F). April also experiences more precipitation, with 137 mm (5.4 in) over 13 days, compared to January's 94 mm (3.7 in) over 10 days. Additionally, April's humidity is slightly lower at 79%, while January maintains a higher humidity level of 84%. For more detailed January weather conditions, you can check Hyannis weather in January.

April and February present quite contrasting weather patterns. In February, temperatures range from a chilly -12°C (10°F) to a max of 11°C (53°F), with an average of just 2°C (36°F). The month experiences considerable humidity at 84% and sees about 123 mm (4.8 in) of precipitation over 12 days. In contrast, April warms up significantly, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 16°C (60°F), averaging 7°C (46°F). While April features slightly higher precipitation at 137 mm (5.4 in) over 13 rainy days, its overall feel is much milder than February’s wintry chill. For more details on February weather, check out Hyannis weather in February.

In comparing the weather of March and April, we see a noticeable warming trend. April boasts a minimum temperature of 1°C (33°F) and an average of 7°C (46°F), while March starts much colder with a minimum of -9°C (16°F) and an average of 3°C (38°F). Maximum temperatures in April reach up to 16°C (60°F), surpassing March's maximum of 13°C (56°F). Precipitation levels are slightly higher in April at 137 mm (5.4 in) over 13 days, compared to March's 118 mm (4.7 in) across 10 days. Interestingly, humidity is slightly lower in April at 79%, compared to 82% in March. For a more detailed look at March weather in the region, you can visit Hyannis weather in March.

April and May exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of 1°C (33°F) to a maximum of 16°C (60°F), with an average of 7°C (46°F), while in May, the temperatures rise, showing a minimum of 5°C (41°F) and reaching up to 21°C (70°F), averaging at 12°C (53°F). Additionally, April experiences higher precipitation with 137 mm (5.4 in) over 13 days, compared to May's 119 mm (4.7 in) spread over 12 days. Humidity levels are slightly elevated in April at 79%, whereas May sees a lower humidity of 75%. For more details on May's weather we can refer to Hyannis weather in May.

April and June present quite a contrast in weather patterns. In April, temperatures range from a chilly minimum of 1°C (33°F) to a more moderate maximum of 16°C (60°F), with an average temperature of 7°C (46°F). This month also sees significant rainfall, totaling 137 mm (5.4 in) over approximately 13 days, and a humidity level of 79%. In comparison, June enjoys milder temperatures, with a minimum of 10°C (51°F) and a maximum reaching 24°C (76°F), leading to a more comfortable average of 17°C (63°F). Additionally, June experiences less precipitation, at 91 mm (3.6 in) spread across about 10 days, and slightly lower humidity at 78%. For more detailed information, check out Hyannis weather in June.

April and July present contrasting weather patterns. In April, temperatures range from a chilly minimum of 1°C (33°F) to a mild maximum of 16°C (60°F), with an average temperature of 7°C (46°F). This month also sees significant precipitation, totaling 137 mm (5.4 in) over 13 days, accompanied by a high humidity level of 79%. In contrast, July experiences much warmer conditions, with temperatures varying from a minimum of 16°C (61°F) to a maximum of 29°C (84°F), averaging around 21°C (71°F). Additionally, July brings less rainfall, with 83 mm (3.3 in) spread over just 9 days, and a slightly lower humidity of 76%. For a detailed look at July weather, you can visit Hyannis weather in July.

April and August present quite different weather experiences. In April, temperatures are typically cooler, ranging from a minimum of 1°C (33°F) to a maximum of 16°C (60°F), with an average temperature of 7°C (46°F). This month also sees higher precipitation, averaging 137 mm (5.4 in) over about 13 days, along with a humidity level of 79%. In contrast, August enjoys much warmer temperatures, with a minimum of 16°C (61°F) and a maximum of 27°C (81°F), averaging around 22°C (72°F). Precipitation in August drops significantly to 82 mm (3.2 in) over just 8 days, accompanied by a slightly lower humidity of 76%. For more details on August weather, check out Hyannis weather in August.

In April, the weather is quite chilly, with average temperatures ranging from a minimum of 1°C (33°F) to a maximum of 16°C (60°F). The month is also characterized by significant rainfall, totaling 137 mm (5.4 in) over about 13 days, combined with a high humidity level of 79%. In contrast, September offers a much milder climate, with temperatures ranging from a minimum of 13°C (56°F) to a comfortable maximum of 25°C (78°F). The precipitation decreases slightly to 118 mm (4.7 in) over 10 days, and humidity levels drop to around 75%. For more specifics, you can check out Hyannis weather in September.

April and October exhibit distinct weather patterns, showcasing the transition between winter and the gradual shift into winter, respectively. In April, temperatures range from a chilly 1°C (33°F) at night to a mild 16°C (60°F) during the day, with an average temperature of 7°C (46°F). The month experiences significant rainfall, totaling 137 mm (5.4 in) over about 13 days, along with relatively high humidity at 79%.

Conversely, October sees slightly warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 22°C (72°F), averaging around 15°C (59°F). Although it receives more precipitation at 175 mm (6.9 in) over just 12 days, the humidity is a bit lower at 75%. For a closer look at how Hyannis weather compares during this month, check Hyannis weather in October.

April and November offer distinct weather experiences, reflecting the transition of seasons. In April, temperatures range from a chilly minimum of 1°C (33°F) to a more moderate maximum of 16°C (60°F), with an average of 7°C (46°F). The month is characterized by relatively high precipitation, totaling 137 mm (5.4 in) over about 13 days, along with a humidity level of 79%. In contrast, November features colder minimum temperatures, dipping to -6°C (21°F), while reaching a comfortable maximum of 19°C (66°F) and an average of 9°C (48°F). Precipitation decreases to 102 mm (4.0 in) over 10 days, and humidity remains similar at 80%. For more specific insights on November weather, you can explore Hyannis weather in November.

April and December present contrasting climates, despite their similar average precipitation levels of around 137 mm. In April, temperatures begin to rise with a minimum of 1°C (33°F) and a maximum of 16°C (60°F), offering a refreshing start to spring. In contrast, December brings the chill of winter, with a minimum temperature plummeting to -12°C (11°F) and a much colder average of 4°C (40°F), though it peaks at the same 15°C (60°F) as April. Both months see about 13 days of precipitation, with April maintaining slightly higher humidity at 79% compared to December's 80%. For more insights into December weather, you can visit Hyannis weather in December.

Compare Hyannis's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Hyannis

As April arrives in Hyannis, the weather shifts noticeably from the chill of winter to the gentler embrace of spring. While temperatures begin to rise, with average highs creeping to around 16°C, the lingering cool nights remind us that warmth is still on the way. Precipitation is frequent, with rain making appearances across 13 days, resulting in a damp yet refreshing atmosphere that nourishes blossoming landscapes. The average humidity hovers around 79%, adding to the lively, invigorating feel of the environment. Compared to the stark winter months, April offers a delightful transition, infused with the promise of summer. For a more comprehensive understanding of seasonal shifts, take a look at Hyannis Climate.