April Weather in Boston, United Kingdom

Last updated: March 17, 2025

In April, Boston, United Kingdom experiences a significant transition into spring, showcasing a temperature range that peaks at 26°C (79°F), with an average of 9°C (48°F) and dipping as low as -1°C (31°F). This month typically sees about 32 mm (1.3 in) of precipitation spread over 8 days, contributing to the lush, vibrant scenery that characterizes the season. With humidity levels reaching a notable 85%, residents and visitors alike can expect a pleasantly refreshing climate, ideal for outdoor activities and enjoying the blossoming natural landscape.

April Temperature in Boston

April in Boston, United Kingdom, marks a significant shift towards warmer days as spring fully blossoms. With minimum temperatures rising to -1°C (31°F) and reaching a delightful average of 9°C (48°F), the month offers promise after the chill of winter. Notably, residents can bask in a maximum of 26°C (79°F), showcasing a remarkable jump from the preceding months. This trend indicates a steady transition from the frigid January and February, where temperatures lingered below freezing, to a month that hints at the warmth of summer ahead. The gradual increase in warmth not only enhances outdoor activities but also invites the vibrant colors of blooming flowers, making April a delightful time to experience the beauty of Boston.

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

The chart illustrates April temperature patterns in Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345485460646359534642
Data source: Temperature data for Boston 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 Boston

In April, Boston, United Kingdom experiences a noticeable dip in precipitation, with rainfall totaling 32 mm (1.3 in) and occurring over just 8 days. This decline follows the wetter months of January through March, where rainfall averages lingered above 56 mm, showcasing a typical early spring pattern. As the region transitions into May, precipitation levels are expected to rise once more, reaching 65 mm (2.6 in), accompanied by an increase in rainy days. This trend highlights the variability of the spring climate, where April often serves as a brief reprieve before the onset of summer showers.

April Precipitation Trends in Boston

The chart displays monthly precipitation patterns in Boston, 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.
JanFebMarAprMayJunJulAugSepOctNovDec435856326574698060745472
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Boston

In April, humidity levels in Boston, United Kingdom, begin to show a subtle yet noteworthy trend, settling at 85%. This marks a slight decline from the 86% recorded in March, continuing the gradual decrease observed since January. The spring season heralds drier air, as humidity dips further to 83% in May, suggesting a transition toward the warmer months. While April is still relatively humid compared to the summer months, it paves the way for the anticipated comfort of early summer, where humidity levels stabilize around 83% in June and July. Notably, the fluctuations in humidity throughout the year illustrate the distinctive seasonal changes that characterize this vibrant region.

April Average Humidity in Boston

This chart illustrates the average monthly humidity levels in Boston, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%86%85%83%83%80%78%84%88%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Boston

As April arrives in Boston, UK, the UV Index rises to 5, marking a shift to a moderate exposure category. This increase mirrors the transition from the cooler months, where January and February recorded UV levels of just 1 and 2, respectively. By March, the index climbed to 4, hinting at the stronger sun expected as spring unfolds. With a burn time of only 30 minutes in April, it's a reminder to stay vigilant about sun protection, especially as May approaches with a higher UV Index of 7. This upward trend underscores the importance of awareness regarding UV exposure as the year progresses. For more details, visit Boston UV Index.

Maximum UV Index Levels in Boston for April

The chart shows the monthly maximum UV Index (UVI) for Boston 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Boston 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 Boston

April in Boston, United Kingdom, brings a remarkable surge in sunshine, showcasing an impressive 321 hours—the most plentiful light of the year so far. This vibrant month marks a significant leap from the previous months, especially when compared to January's meager 89 hours and March's 195 hours. As spring unfolds, the increasing daylight hours pave the way for even brighter months ahead, with May reaching an impressive 378 hours. The trend continues through the summer, where July and August maintain robust sunshine totals, ensuring Boston basks in ample light before autumn’s decline. This seasonal progression not only enhances the natural beauty of the area but also invigorates the community, inviting everyone to embrace the warmth and splendor of the British spring.

Monthly Sunshine Duration in Boston: April Highlighted

The April sunshine duration represents the total number of hours Boston 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.
JanFebMarAprMayJunJulAugSepOctNovDec89h144h195h321h378h352h374h359h286h228h139h103h
Data source: Boston April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Boston During April

As spring unfolds in Boston, United Kingdom, the likelihood of sunny weather sees a significant upswing in April, boasting a 44% chance of sunshine. This notable increase from the preceding months—where January, February, and March hovered between 23% and 26%—marks a refreshing trend toward brighter days. Comparatively, April outshines May's 31% and June's 29%, establishing it as one of the sunniest months in the early part of the year. This vibrant shift promises residents and visitors alike an opportunity to relish more outdoor activities and enjoy the awakening beauty of spring.

Percentage of Sunny Days in April in Boston

The chart illustrates the percentage of sunny days in Boston 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 Boston experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%23%26%44%31%29%36%26%29%22%29%19%
Data source: Boston April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Boston in April

As April unfolds in Boston, United Kingdom, residents can delight in a significant increase in daylight, basking in approximately 14 hours of sunlight each day. This is a remarkable jump from the 11 hours experienced in March, signaling the onset of longer days and the vibrant energy of spring. The trend continues to progress, with daylight peaking in June at 16 hours, before gradually tapering off in the autumn months. This transition from the shorter days of winter, with only 8 hours of daylight in January, reflects a rhythm of nature that invites exploration and outdoor activities as the days grow brighter and warmer. Nature awakens, and so do the opportunities for adventure under the expansive April skies.

Average Daylight Hours in Boston for April

The chart illustrates the variation in daylight duration in Boston throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 11m9h 51m11h 54m14h15h 50m16h 49m16h 17m14h 38m12h 36m10h 32m8h 39m7h 38m
Data source: Boston daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Boston

In April, Boston, United Kingdom, experiences a gentle breeze, with an average wind speed of 3.9 m/s (9 mph)—a noticeable dip from the brisk conditions of the previous months. This reduction in wind speed marks a transition into spring, offering a refreshing yet milder atmosphere as the harsh winter fades away. Interestingly, April's wind speed is part of a broader trend; after peaking in the early months of the year—January and February averaging over 5 m/s—the winds in Boston generally become softer as summer approaches. May shows a slight uptick, but the overall pattern reveals a seasonal rhythm, where the springtime air invites a comforting calm before the wind picks up again in the autumn months.

Average April Wind Speed in Boston

The chart displays monthly wind speed patterns in Boston, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.85.35.03.9 m/s4.43.83.54.33.95.44.94.8
Data source: Boston April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Boston Compares to Other Months

The weather in Boston 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 Boston and find detailed weather information for every month.

April weather shows a significant warming trend compared to January. The average temperature in April is 9°C (48°F), peaking at 26°C (79°F), while January's average is notably cooler at 5°C (41°F), with a maximum of only 15°C (59°F). Despite both months experiencing rain on roughly eight days, April receives less precipitation at 32 mm (1.3 in) compared to January’s 43 mm (1.7 in). The humidity levels are quite similar, with April at 85% and January slightly higher at 89%. For a more detailed look, you can refer to Boston weather in January.

April typically brings milder temperatures compared to February, with average temperatures rising from February's 6°C (43°F) to a more pleasant 9°C (48°F) in April. The minimum temperatures in April are also slightly higher, starting at -1°C (31°F) versus February's lower minimum of -6°C (22°F). However, February experiences more precipitation on average, with 58 mm (2.3 in) over 11 days compared to April's 32 mm (1.3 in) over 8 days. Humidity remains fairly consistent between the two months, with February at 87% and April at 85%. For a more detailed look at February's weather, you can check Boston weather in February.

In comparing the weather between March and April, it's evident that April tends to be milder and more variable. While March experiences a lower average temperature of 7°C (45°F) with minimums dipping to -5°C (24°F) and maximums reaching 21°C (70°F), April shows a notable increase in average temperature to 9°C (48°F), with maximums soaring up to 26°C (79°F). Additionally, April is marked by a reduction in precipitation, totaling 32 mm (1.3 in) over 8 days compared to March's 56 mm (2.2 in) across 12 days. Humidity levels remain relatively high in both months, with April slightly lower at 85% compared to March's 86%. For more detailed insights, please visit Boston weather in March.

April and May exhibit noticeable differences in weather patterns. In April, temperatures range from a minimum of -1°C (31°F) to a maximum of 26°C (79°F), with an average of 9°C (48°F). Precipitation is relatively low at 32 mm (1.3 in) over 8 days, contributing to a high humidity level of 85%. In contrast, May sees a slight increase in temperatures, with a minimum of 1°C (35°F), an average of 12°C (54°F), and a maximum of 27°C (80°F). However, rainfall increases significantly to 65 mm (2.6 in) over 12 days, while humidity remains slightly lower at 83%. For more detailed information, you can check Boston weather in May.

April and June exhibit notable differences in weather conditions. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 9°C (48°F). The month experiences around 32 mm (1.3 in) of precipitation over 8 days, coupled with high humidity at 85%. In contrast, June offers a warmer climate with minimum temperatures starting at 6°C (43°F) and peaking at 30°C (86°F), averaging 16°C (61°F). Precipitation increases significantly to 74 mm (2.9 in) over 11 days, maintaining a slightly lower humidity of 83%. For more details on June weather, visit Boston weather in June.

April and July present quite contrasting weather conditions. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 9°C (48°F). The month sees relatively low precipitation, totaling 32 mm (1.3 in) over about 8 days, and a high humidity level at 85%. In comparison, July enjoys much warmer weather, with temperatures starting at 8°C (47°F) and peaking at 33°C (91°F), averaging 18°C (64°F). However, it also receives more rain, with 69 mm (2.7 in) of precipitation spread over 11 days, coupled with slightly lower humidity at 79%. For those interested in detailed information, check out Boston weather in July.

April and August present a stark contrast in weather conditions. In April, temperatures can range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average around 9°C (48°F). The month typically experiences about 32 mm (1.3 inches) of precipitation over 8 days and a high humidity level of 85%. In comparison, August warms up significantly, featuring minimum temperatures of 9°C (49°F) and maximums reaching 32°C (89°F), with an average of 17°C (64°F). However, this month also brings increased rainfall, totaling around 80 mm (3.1 inches) over 12 days, while humidity decreases slightly to 78%. For more details, check out Boston weather in August.

April and September present distinct weather patterns, with April typically experiencing cooler temperatures that range from a minimum of -1°C (31°F) to a maximum of 26°C (79°F), averaging around 9°C (48°F). In contrast, September offers a milder climate, with minimum temperatures of 4°C (39°F) and maximums reaching 28°C (83°F), averaging 15°C (59°F). Both months see considerable humidity, averaging 85% in April and slightly lower at 84% in September. Precipitation is more frequent in September, accumulating 60 mm (2.4 in) over about 10 days, compared to April's 32 mm (1.3 in) across 8 days. For additional details on September weather, you can check this link: Boston weather in September.

April and October present distinct weather patterns, showcasing the transition of seasons. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average of 9°C (48°F). The month sees approximately 32 mm (1.3 in) of precipitation spread over 8 days, coupled with a humidity level of 85%. In contrast, October features slightly milder temperatures, with a minimum of 2°C (36°F) and a maximum of 24°C (76°F), averaging 12°C (53°F). However, October is wetter, with around 74 mm (2.9 in) of rain falling over 13 days, resulting in a humidity level of 88%. For a detailed look at October weather, visit Boston weather in October.

April and November present contrasting yet both transitional weather patterns. In April, temperatures can vary widely, ranging from a minimum of -1°C (31°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 9°C (48°F). The month sees about 32 mm (1.3 in) of precipitation over approximately 8 days, accompanied by relatively high humidity at 85%. In contrast, November has a more restrained temperature range, with a minimum of -2°C (29°F) and a maximum of 18°C (64°F), resulting in an average temperature of 8°C (46°F). It is a wetter month, receiving around 54 mm (2.1 in) of precipitation over 10 days, and features slightly higher humidity at 89%. For more details, you can check this link: Boston weather in November.

April and December present contrasting weather patterns in terms of temperature, precipitation, and humidity. In April, temperatures range from a low of -1°C (31°F) to a high of 26°C (79°F), with an average of 9°C (48°F) and relatively low precipitation of 32 mm (1.3 in) over about 8 days, resulting in a humidity level of 85%. In contrast, December experiences cooler temperatures, with a minimum of -2°C (29°F), an average of 6°C (43°F), and a maximum of 15°C (59°F). The month sees significantly more rainfall, totaling 72 mm (2.8 in) spread across 15 days, along with slightly higher humidity at 88%. For more details about December weather, you can check Boston weather in December.

Compare Boston's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Boston

As April unfolds in Boston, the weather showcases a delightful transition from the chill of winter to the warmer embrace of spring. While temperatures can reach a pleasant 26°C (79°F), the average settles at a brisk 9°C (48°F), reminding us that the crispness of early spring still lingers. Unlike the heavier precipitation of winter months, April offers a more moderate 32 mm (1.3 in) of rain across about 8 days, keeping the landscape lush while ensuring that sun-kissed afternoons aren't overshadowed by constant wetness. With humidity levels elevated at 85%, April's air feels refreshingly alive, making it a delightful month to experience the vibrant transformation of nature. For more insights on how the climate shapes this period, explore Boston Climate.