April Weather in Bar Harbor, United States

Last updated: February 24, 2025

April in Bar Harbor, United States showcases a dynamic climate as winter transitions into spring. With maximum temperatures reaching 18°C (65°F) and minimums plunging to -4°C (24°F), the month presents a wide range of chilly to mildly warm days, averaging around 6°C (43°F). Rainfall is notable, totaling 129 mm (5.1 in) across 13 days, contributing to a humid atmosphere with an average humidity of 81%. Visitors can expect a blend of crisp air and occasional showers, making it a splendid time to explore the emerging beauty of nature in this charming coastal town.

April Temperature in Bar Harbor

April marks a significant turning point in Bar Harbor's seasonal temperatures, as the cold grip of winter begins to loosen its hold. With minimums rising to -4°C (24°F) and average temperatures reaching a pleasant 6°C (43°F), the transition into spring is palpable. The maximum temperature of 18°C (65°F) invites longer days and blooming nature, contrasting sharply with the frigid January lows that plunge to -23°C (-8°F). As Bar Harbor shakes off the winter chill, the gradual warming trend from March to April sets the stage for even warmer days ahead in May. This invigorating shift not only enhances outdoor activities but also brings a vibrant atmosphere to the region, making it an ideal time to explore all that this charming coastal town has to offer as it welcomes spring.

April Weather in Bar Harbor: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Bar Harbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec252632425261676861524030
Data source: Temperature data for Bar Harbor 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 Bar Harbor

In April, Bar Harbor experiences a notable increase in precipitation, with 129 mm (5.1 in) of rain falling over approximately 13 days. This marks a significant rise compared to the previous months, highlighting a shift as spring takes hold. The uptick in rainfall after March, which saw only 73 mm (2.9 in), sets the stage for vibrant greenery and blooming flowers, characteristic of the season. While April's precipitation is higher than that of both May (92 mm) and June (79 mm), it indicates a transition period, as the region shakes off winter's chill and welcomes the lushness of spring. This trend emphasizes the dynamic weather patterns of Bar Harbor, making April a critical month for nurturing the landscape that draws visitors to this picturesque destination.

April Precipitation Trends in Bar Harbor

The chart displays monthly precipitation patterns in Bar Harbor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec9890731309279807395107131138
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Bar Harbor

In April, Bar Harbor experiences a noticeable decline in humidity, averaging 81%, a drop from the higher levels of the earlier months. This trend marks a transition into spring, as the humidity levels begin to ease from the chill of winter, where January and February lingered at a cozy 88%. As temperatures gradually rise, May follows with even lower humidity at 76%, indicating a shift towards a drier and more pleasant climate as the region moves into the warmer summer months. This consistent pattern of decreasing humidity from March to May not only reflects the changing seasons but also enhances the enchanting coastal charm that Bar Harbor is known for, making it an inviting destination for outdoor enthusiasts.

April Average Humidity in Bar Harbor

This chart illustrates the average monthly humidity levels in Bar Harbor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%85%81%76%74%74%74%77%82%85%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Bar Harbor

As spring unfolds in Bar Harbor, April ushers in a noticeable increase in sun intensity, with a UV Index of 7 that falls into the high exposure category. This marks a significant jump from the moderate levels recorded earlier in the year, reflecting a shift in the sun's strength. With a burn time of just 25 minutes, it's essential for residents and visitors alike to be mindful of sun protection, as the risk of skin damage rises. Looking ahead, May and June promise even higher indices, peaking at 9 and 10, respectively, which signals a transition into the very high exposure category. This trend emphasizes the importance of adjusting sun safety practices as the days grow longer and brighter. For more detailed information on the UV Index, visit Bar Harbor UV Index.

Maximum UV Index Levels in Bar Harbor for April

The chart shows the monthly maximum UV Index (UVI) for Bar Harbor 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910887532
Data source: Bar Harbor 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 Bar Harbor

As April arrives in Bar Harbor, the days grow noticeably longer and sunnier, boasting 244 hours of sunshine that signal the transition from winter's grasp to the embrace of spring. This month reflects a slight dip from the exuberant sunshine of March, which enjoyed 257 hours, yet it still stands as a testament to the vibrant energy building in the region. Following the path of earlier months, April paves the way for the increasingly bright days ahead, with May set to deliver an impressive 292 hours of radiant sunshine. The pattern is clear: as Bar Harbor shakes off the chill of winter, the upcoming months promise a steady increase in sunlight, fueling both the beauty of nature and the enthusiasm of visitors ready to explore this coastal gem.

Monthly Sunshine Duration in Bar Harbor: April Highlighted

The April sunshine duration represents the total number of hours Bar Harbor 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.
JanFebMarAprMayJunJulAugSepOctNovDec141h188h257h244h292h316h318h326h281h224h184h170h
Data source: Bar Harbor April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bar Harbor During April

In Bar Harbor, the likelihood of sunny weather in April dips to 34%, marking a notable decline from the preceding month of March, which boasts a more promising 57% chance of sun. This decrease sets the tone for the spring months, where the chances of clear skies remain relatively modest, fluctuating slightly with 36% in May. Interestingly, the trend through the year shows that the peak periods for sunny days occur primarily in late winter and early fall, with January and October offering 41% and 43% sunny chances, respectively. As we transition into the warmer months, the likelihood of sunny weather generally wanes, particularly in the heart of summer, where July sees only 25%. Thus, while April may not shine the brightest, it sets the stage for the evolving weather patterns that define Bar Harbor's seasonal charm.

Percentage of Sunny Days in April in Bar Harbor

The chart illustrates the percentage of sunny days in Bar Harbor 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 Bar Harbor experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%38%57%34%36%39%25%31%39%43%55%39%
Data source: Bar Harbor April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bar Harbor in April

As spring unfolds in Bar Harbor during April, residents and visitors are greeted by a significant increase in daylight, with the sun gracing the skies for 13 hours—a noticeable leap from March's 11 hours. This upward trend continues into May, providing an energizing backdrop for outdoor activities and blooming landscapes. The gradual elongation of daylight hours from January's 9 hours to April's 13 hours not only signals the arrival of warmer weather but also hints at the vibrant summer months ahead, where daylight peaks at 15 hours in June and July. As summer fades into autumn, daylight begins to wane again, highlighting the cyclical nature of the seasons in this picturesque coastal haven.

Average Daylight Hours in Bar Harbor for April

The chart illustrates the variation in daylight duration in Bar Harbor throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 15m10h 27m11h 57m13h 29m14h 48m15h 28m15h 6m13h 56m12h 27m10h 55m9h 34m8h 52m
Data source: Bar Harbor daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Bar Harbor

In April, the winds in Bar Harbor continue their gentle embrace, with an average speed of 4.5 m/s (10 mph). This marks a slight increase from March’s brisk 5.1 m/s, creating a refreshing atmosphere as spring fully unfolds. As we transition into warmer months, the wind speed tends to drift downward; May sees a dip to 3.9 m/s (9 mph), indicating that lighter breezes are on the horizon. The spring air in Bar Harbor is marked by these soft currents that carry hints of blooming flowers and the promise of summer adventures, making April a delightful time to enjoy the coastal beauty with just enough wind to keep the air lively.

Average April Wind Speed in Bar Harbor

The chart displays monthly wind speed patterns in Bar Harbor, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.25.14.5 m/s3.94.13.42.93.73.84.34.6
Data source: Bar Harbor April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Bar Harbor Compares to Other Months

The weather in Bar Harbor 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 Bar Harbor and find detailed weather information for every month.

When comparing the weather in April and January, it's clear that April brings a significant increase in temperatures and a shift in overall conditions. In April, the temperature ranges from a chilly minimum of -4°C (24°F) to a much more pleasant maximum of 18°C (65°F), with an average of 6°C (43°F). In contrast, January experiences much colder temperatures, with a minimum of -23°C (-8°F) and a maximum of 11°C (51°F), averaging -4°C (25°F). Additionally, April sees more rainfall, with 129 mm (5.1 in) over 13 days, compared to the 98 mm (3.9 in) of precipitation experienced over just 9 days in January. The humidity in April is also slightly lower at 81%, compared to January's 88%, making April feel a bit more comfortable. For more detailed information, you can check Bar Harbor weather in January.

April and February present a stark contrast in weather conditions. In April, temperatures range from a minimum of -4°C (24°F) to a maximum of 18°C (65°F), with an average of 6°C (43°F), offering a much milder climate compared to February, which experiences much colder temperatures ranging from -20°C (-4°F) to a maximum of 13°C (56°F), and an average of -3°C (26°F). Additionally, April sees significantly more precipitation, measuring 129 mm (5.1 in) over 13 days, compared to February's 90 mm (3.6 in) over just 10 days. The humidity also remains relatively high in both months, with April at 81% and February at 88%. For more details on February weather, check out Bar Harbor weather in February.

April generally brings milder conditions compared to March, with average temperatures rising from March's 0°C (32°F) to a more comfortable 6°C (43°F). The minimum temperatures also improve, going from a chilly -18°C (0°F) in March to a more moderate -4°C (24°F) in April. However, April experiences higher precipitation levels, totaling 129 mm (5.1 in) across 13 days, compared to March’s 73 mm (2.9 in) over 9 days. Humidity remains relatively high in both months, with March recorded at 85% and April slightly lower at 81%. For more detailed insights on March weather in Bar Harbor, you can refer to Bar Harbor weather in March.

April and May show a noticeable transition in weather with May being generally milder and drier. In April, temperatures range from a chilly minimum of -4°C (24°F) to a maximum of 18°C (65°F), with an average of 6°C (43°F) and significant precipitation of 129 mm (5.1 in) over 13 days. Humidity is quite high as well, sitting at 81%. In contrast, May brings warmer temperatures, with a minimum of 2°C (36°F) and a maximum of 25°C (78°F), resulting in an average of 11°C (52°F). Precipitation decreases to 92 mm (3.6 in) over just 11 days, and humidity drops to 76%, providing a more pleasant atmosphere. For more detailed information, check out Bar Harbor weather in May.

April and June present a striking contrast in weather conditions. In April, temperatures can drop as low as -4°C (24°F), with an average temperature of 6°C (43°F) and highs reaching 18°C (65°F). The month is also quite wet, experiencing around 129 mm (5.1 in) of precipitation over 13 days, accompanied by high humidity levels of 81%. In comparison, June offers a more pleasant climate, with minimum temperatures of 6°C (42°F), an average of 16°C (61°F), and maximums soaring to 30°C (86°F). Precipitation significantly decreases to 79 mm (3.1 in) over just 9 days, and humidity drops to 74%. For more insights on the weather during this time, check out Bar Harbor weather in June.

April and July present strikingly different weather patterns. In April, temperatures range from a chilly minimum of -4°C (24°F) to a comfortable maximum of 18°C (65°F), with an average of 6°C (43°F). The month sees considerable precipitation, totaling 129 mm (5.1 in) over 13 days, accompanied by high humidity at 81%. In contrast, July experiences a warmer climate, with minimum temperatures of 11°C (53°F) and maximums reaching up to 30°C (86°F), averaging 19°C (67°F). Rainfall is less frequent in July, totaling 80 mm (3.2 in) over 10 days, and humidity drops to 74%. For more details on weather conditions during this warm month, you can explore Bar Harbor weather in July.

April weather is characterized by much cooler temperatures, with a minimum of -4°C (24°F) and an average of 6°C (43°F), compared to August, where temperatures range from a minimum of 12°C (53°F) to an average of 20°C (68°F). While April experiences higher precipitation levels at 129 mm (5.1 in) over 13 days, August has significantly less rainfall, with only 73 mm (2.9 in) occurring over just 8 days. Additionally, April's humidity levels are relatively high at 81%, while August enjoys a slightly drier atmosphere with humidity at 74%. For more details on August weather, check out Bar Harbor weather in August.

In April, temperatures range from a chilly -4°C (24°F) at night to a mild 18°C (65°F) during the day, averaging around 6°C (43°F), while September enjoys a more comfortable temperature spectrum with lows of 5°C (42°F) and highs reaching 27°C (81°F), averaging 16°C (61°F). Precipitation is more common in April, with 129 mm (5.1 in) spread over 13 days, compared to September's lighter rains of 95 mm (3.7 in) occurring on just 7 days. Additionally, while April's humidity is higher at 81%, September sees a slightly lower average humidity of 77%, making it feel a bit more pleasant. For more specific insights into the changing conditions, check out Bar Harbor weather in September.

April and October present contrasting yet pleasant transitional weather patterns. In April, temperatures range from a chilly minimum of -4°C (24°F) to a milder maximum of 18°C (65°F), with an average temperature of 6°C (43°F). This month also experiences notable precipitation at 129 mm (5.1 in) over 13 days, combined with a high humidity level of 81%. In contrast, October enjoys slightly warmer temperatures, with a minimum of 0°C (32°F), an average of 11°C (52°F), and a maximum of 21°C (70°F). While it sees less precipitation at 107 mm (4.2 in) over 11 days, the humidity remains comparable at 82%. For a deeper look at October weather, check out Bar Harbor weather in October.

April and November display some noteworthy contrasts in weather despite having similar average temperatures. In April, the temperatures range from a minimum of -4°C (24°F) to a maximum of 18°C (65°F), showcasing the transition from winter to spring. With an average temperature of 6°C (43°F) and relatively high humidity at 81%, April is marked by a fair amount of precipitation, totaling 129 mm (5.1 in) over approximately 13 days.

In comparison, November presents a colder atmosphere, with temperature fluctuations between -15°C (6°F) and 17°C (63°F). The average temperature dips slightly to 4°C (40°F), and the humidity rises marginally to 85%. Precipitation remains similar to April, totaling 130 mm (5.1 in) over 12 days, suggesting a continued likelihood of wet conditions. To explore more about what to expect in November, visit Bar Harbor weather in November.

April and December present strikingly different weather conditions. In April, temperatures range from a chilly -4°C (24°F) to a mild 18°C (65°F), with an average of 6°C (43°F), while December is significantly colder, with temperatures dropping as low as -22°C (-7°F) and averaging -1°C (30°F). Both months experience notable precipitation, with April seeing 129 mm (5.1 in) over 13 days and December slightly higher at 138 mm (5.4 in) across 11 days. Humidity levels are also high in both months, with April at 81% and December at 84%. For a detailed look at December conditions, you can check Bar Harbor weather in December.

Compare Bar Harbor's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Bar Harbor

April in Bar Harbor marks a noticeable transition as temperatures begin to rise from the winter chill, providing a fresh and invigorating atmosphere. While the average temperature hovers around a cool 6°C, the advent of warmer days, peaking at 18°C, invites the anticipation of spring. However, April is also characterized by increased precipitation, with about 13 rainy days and a humidity level of 81%, creating a lively, if somewhat damp, environment. As the region shakes off the remnants of winter, the shifting weather patterns signal the onset of budding nature and outdoor activities. For a deeper dive into the annual weather trends, explore Bar Harbor Climate.