August Weather in Boothbay Harbor, United States

Last updated: February 24, 2025

In Boothbay Harbor, August brings a pleasant maritime climate characterized by maximum temperatures reaching 25°C (78°F) and an average temperature of 20°C (67°F). While the minimum temperature dips to a comfortable 15°C (59°F), visitors can expect a moderate level of humidity at 83%. The month sees about 71 mm (2.8 in) of precipitation spread over 8 days, adding a refreshing touch to the summer days. This combination of warm temperatures and occasional rain creates an inviting atmosphere for both relaxation and outdoor activities in this charming coastal town.

August Temperature in Boothbay Harbor

In August, Boothbay Harbor basks in the warmth of summer, with temperatures reflecting a delightful peak in the seasonal cycle. The minimum temperature hovers around 15°C (59°F), while the average climbs to a comfortable 20°C (67°F), reaching a pleasant maximum of 25°C (78°F). This month stands out as one of the warmest, showcasing a noteworthy increase from the cooler months preceding it. As the days trend warmer, visitors can enjoy outdoor activities amidst the refreshing coastal scenery, making it an ideal time to experience all that this charming harbor town has to offer. The gradual decline in temperature toward the end of summer signals a transition, but for now, August truly embodies the essence of summer in Boothbay Harbor.

August Weather in Boothbay Harbor: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Boothbay Harbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec303134425059666762544335
Data source: Temperature data for Boothbay 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.

August Precipitation in Boothbay Harbor

In August, Boothbay Harbor experiences a moderate precipitation level of 71 mm (2.8 in), which is consistent with the lighter rainfall observed during the summer months. With only 8 days of rain, August marks one of the driest months of the season, following the pattern set in June and July. This trend of reduced precipitation serves as a welcome respite from the heavier rains of earlier months, such as April, which boasts a significant 139 mm (5.5 in) over 13 days. As summer transitions to fall, the lighter rainfall in August signals a gradual shift in weather patterns, ultimately paving the way for the more substantial precipitation expected in the coming autumn months.

August Precipitation Trends in Boothbay Harbor

The chart displays monthly precipitation patterns in Boothbay Harbor, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec96988513982711007181150122137
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Boothbay Harbor

In Boothbay Harbor, August ushers in an average humidity level of 83%, slightly lower than the previous months of June and July, which boast higher averages of 86% and 85%, respectively. This subtle decline in humidity signals a transitional phase as summer begins to wane, yet it maintains a comfortable balance, mirroring the more moderate levels seen in April and May. Overall, the humidity trend during the summer months remains relatively high, with February's peak of 86% setting the stage for a humid coastal environment that characterizes this beautiful region throughout the year. As autumn approaches, humidity levels gradually decrease, paving the way for the crisp air of September and October.

August Average Humidity in Boothbay Harbor

This chart illustrates the average monthly humidity levels in Boothbay Harbor, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Boothbay Harbor

In August, Boothbay Harbor experiences a very high UV Index of 8, with a burn time of just 15 minutes, reflecting a trend that peaks during the summer months. As the season progresses from May's UV Index of 9 to the slightly lower August rating, residents and visitors alike should remain vigilant about sun safety. In the warmer months, the exposure category remains consistently high, with effective sun protection becoming increasingly crucial. As summer winds down, the UV Index will gradually decline in September, but for now, enjoy the sun while taking necessary precautions! For more detailed information, check out the Boothbay Harbor UV Index.

Maximum UV Index Levels in Boothbay Harbor for August

The chart shows the monthly maximum UV Index (UVI) for Boothbay Harbor in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Boothbay Harbor August 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.

August Sunshine in Boothbay Harbor

In Boothbay Harbor, United States, the month of August shines brightly with 341 hours of sunlight, marking it as the peak of the summer season. This vibrant energy follows a steady ascent from January's modest 145 hours, illustrating a consistent trend of increasing daylight as the year progresses. Following the sunny July, which offers 337 hours, August not only sustains but enhances that warmth, paving the way for a glorious end to summer. As the calendar shifts into autumn, the sunlight begins to taper off, but the rich hours of late summer create a lasting impression, contrasting sharply with the winter months where daylight dwindles, such as December's 174 hours. This seasonal ebb and flow not only enriches the picturesque coastal scenery but also invites residents and visitors alike to bask in the beauty of long, sun-soaked days.

Monthly Sunshine Duration in Boothbay Harbor: August Highlighted

The August sunshine duration represents the total number of hours Boothbay Harbor experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec145h187h261h250h302h334h337h341h287h229h193h174h
Data source: Boothbay Harbor August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Boothbay Harbor During August

August in Boothbay Harbor brings a moderate likelihood of sunny weather, with only a 33% chance of sunshine. Interestingly, this marks a dip from the summer months, as July boasts the lowest probability of sunny days at 29%. In contrast, the trend begins to shift in the fall, with September enjoying a more favorable 44% chance of sun. This pattern reflects how the region transitions from the peak summer months, which often promise more humidity and clouds, into a clearer, crisper autumn, hinting that while sunseekers might find August a bit lacking, the subsequent months offer a brighter outlook.

Percentage of Sunny Days in August in Boothbay Harbor

The chart illustrates the percentage of sunny days in Boothbay Harbor throughout the year, with August 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 Boothbay Harbor experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%34%60%37%38%39%29%33%44%38%54%32%
Data source: Boothbay Harbor August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Boothbay Harbor in August

In Boothbay Harbor, the month of August marks a transitional phase in daylight duration, with the sun illuminating the skies for approximately 13 hours. This is a slight decrease from the peak of 15 hours enjoyed in the vibrant summer months of June and July. As the seasons shift, August's daylight provides a golden backdrop for late summer activities, gently easing into the shorter days ahead. Following this month, September sees a further decline to 12 hours, signaling the approach of autumn. The trend throughout the year reflects a gradual dance of light, where longer days of summer give way to the coziness of fall, enriching the natural beauty of this coastal gem.

Average Daylight Hours in Boothbay Harbor for August

The chart illustrates the variation in daylight duration in Boothbay Harbor throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 19m10h 29m11h 57m13h 28m14h 45m15h 23m15h 2m13h 54m12h 27m10h 56m9h 37m8h 57m
Data source: Boothbay Harbor daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Boothbay Harbor

In August, Boothbay Harbor experiences a gentle breeze, with an average wind speed of 4.3 m/s (10 mph), marking a continuation of the calm seen in July. This subtler air can be attributed to the seasonal shift, as wind speeds typically peak during the winter months and begin to moderate as summer reaches its close. Comparatively, August's winds are among the lowest of the year, down from peaks in March and November, which boast average speeds of 7.1 m/s (16 mph) and 6.1 m/s (14 mph), respectively. The tranquil atmosphere during this time, influenced by the dwindling summer heat, creates an inviting environment for residents and visitors alike to enjoy the serene beauty of the harbor. As autumn approaches, one can look forward to a gradual uptick in wind speeds, revitalizing the coastal air and ushering in a new season.

Average August Wind Speed in Boothbay Harbor

The chart displays monthly wind speed patterns in Boothbay Harbor, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.66.47.15.85.25.94.54.3 m/s5.25.56.16.7
Data source: Boothbay Harbor August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Boothbay Harbor Compares to Other Months

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

August and January present starkly contrasting weather conditions. August typically sees mild temperatures, with a minimum of 15°C (59°F) and a maximum of 25°C (78°F), making it a comfortable month for outdoor activities. However, it does come with higher humidity levels at 83% and a fair amount of precipitation, averaging 71 mm (2.8 in) over about 8 days. In contrast, January is defined by its cold and chilly temperatures, with a minimum of -17°C (2°F) and a maximum of only 11°C (52°F). This winter month experiences more precipitation, totaling 96 mm (3.8 in) over 9 days, but with similarly high humidity at 85%. For a detailed overview of January weather, you can visit Boothbay Harbor weather in January.

When comparing the weather in August and February, the contrasts are striking. August typically boasts milder temperatures, ranging from a minimum of 15°C (59°F) to a comfortable average of 20°C (67°F), with maximums reaching 25°C (78°F). The month experiences some rainfall, with about 71 mm (2.8 in) falling over approximately 8 days, while humidity sits at a relatively high 83%. In stark contrast, February presents a much colder climate, with temperatures plummeting to a minimum of -14°C (7°F) and averaging around 0°C (31°F), reaching a maximum of only 11°C (53°F). This winter month sees increased precipitation, totaling 98 mm (3.8 in) over about 10 days, and slightly higher humidity at 86%. For a more detailed look at February weather patterns in this region, you can visit Boothbay Harbor weather in February.

The contrast between August and March weather is striking. In August, temperatures range from a minimum of 15°C (59°F) to a maximum of 25°C (78°F), making it a warm and humid month with an average temperature of 20°C (67°F) and 71 mm (2.8 in) of precipitation over 8 days. In stark contrast, March is much colder, with temperatures ranging from a frigid -13°C (9°F) to a maximum of 12°C (53°F), averaging just 1°C (35°F). Precipitation is slightly higher at 85 mm (3.3 in) but occurs over 9 days, and humidity remains similar at 84%. For a closer look at the weather specifics, check out Boothbay Harbor weather in March.

Comparing the weather in August and April reveals a stark contrast in temperatures and conditions. In August, the temperatures range from a minimum of 15°C (59°F) to a pleasant average of 20°C (67°F) and can peak at 25°C (78°F), while April's temperatures are considerably cooler, with lows dropping to -2°C (29°F) and an average of just 6°C (43°F). Precipitation also differs, as August experiences about 71 mm (2.8 in) of rain over 8 days, compared to April's wetter climate with 139 mm (5.5 in) over 13 days. Humidity levels are relatively high in both months, sitting at 83% in August and slightly lower at 79% in April. For more detailed insights on April weather, check out Boothbay Harbor weather in April.

August and May showcase contrasting weather patterns in Boothbay Harbor. In August, temperatures range from a mild 15°C (59°F) at night to a warmer average of 20°C (67°F), with peaks reaching 25°C (78°F). The month also experiences higher humidity at 83%, and while it sees some precipitation, totaling 71 mm (2.8 in) over 8 days, the warmth makes it a popular time for outdoor activities. In comparison, May begins with cooler conditions, marked by a minimum temperature of 2°C (37°F) and an average of only 10°C (50°F), with a maximum of 19°C (66°F). Although May has a slightly higher precipitation level at 82 mm (3.2 in) over 10 days, the humidity is lower at 79%. For more detailed information, you can check Boothbay Harbor weather in May.

When comparing the weather between June and August, noticeable differences emerge. August typically enjoys a warmer climate with minimum temperatures of 15°C (59°F), an average of 20°C (67°F), and maximums reaching 25°C (78°F). In contrast, June experiences cooler temperatures, with a minimum of 9°C (49°F), an average of 15°C (59°F), and a maximum of 21°C (71°F). Both months receive similar amounts of precipitation, around 71 mm (2.8 in), and both see rainfall on approximately 8 days. Additionally, August tends to be slightly less humid at 83% compared to June's 86%. For a closer look at the weather specifics in June, you can explore this link: Boothbay Harbor weather in June.

In comparing the weather between July and August, we see that both months experience similar maximum temperatures, peaking at 25°C (78°F). However, August tends to be slightly warmer overall, with an average temperature of 20°C (67°F) compared to July's average of 19°C (66°F). Precipitation is notably lower in August, with 71 mm (2.8 in) over 8 days, versus July's 100 mm (3.9 in) over 10 days. Additionally, humidity remains high but is marginally lower in August at 83%, compared to 85% in July. For more detailed insights into the weather patterns, you can check Boothbay Harbor weather in July.

August typically features warmer temperatures, with an average of 20°C (67°F) and maximums reaching up to 25°C (78°F), while September sees a decline with an average of 17°C (62°F) and maximums of 23°C (74°F). Precipitation is slightly higher in September at 81 mm (3.2 in), compared to 71 mm (2.8 in) in August, with both months experiencing rainfall on 8 days. Humidity remains relatively high in both months, with August slightly higher at 83% versus September's 80%. For more details on the changing weather patterns, you can explore Boothbay Harbor weather in September.

August typically offers a warmer climate with average temperatures ranging from 15°C (59°F) to a maximum of 25°C (78°F), alongside 71 mm (2.8 in) of precipitation spread over 8 days and high humidity at 83%. In contrast, October experiences a significant drop in temperatures, with averages ranging from a chilly 2°C (36°F) to a maximum of 19°C (67°F). This month sees increased rainfall, totaling 150 mm (5.9 in) across 12 days, though humidity is slightly lower at 77%. For more detailed insights about the October weather, you can visit Boothbay Harbor weather in October.

August and November present distinct contrasts in weather. August boasts a mild climate with average temperatures around 20°C (67°F), while nighttime temperatures rarely fall below 15°C (59°F). This month experiences a higher frequency of sunny days and relatively low precipitation of 71 mm (2.8 in) over 8 days, coupled with high humidity at 83%. In stark contrast, November sees a significant drop in temperatures, with average highs of only 6°C (44°F) and nighttime lows plunging to -10°C (14°F). This month is wetter, accumulating 122 mm (4.8 in) of rainfall over 11 days, although humidity remains slightly lower at 80%. For a deeper look into November's weather specifics, you can check out Boothbay Harbor weather in November.

August and December present starkly contrasting weather conditions. In August, temperatures range from a mild 15°C (59°F) to a comfortable 25°C (78°F), averaging around 20°C (67°F), while precipitation is relatively low at 71 mm (2.8 in) over 8 days, complemented by high humidity at 83%. In contrast, December experiences much colder temperatures, with a chilling minimum of -16°C (3°F) and an average of just 1°C (35°F), peaking at 14°C (57°F). Precipitation increases to 137 mm (5.4 in) across 11 days, and humidity stays similar at 81%. For more details, see Boothbay Harbor weather in December.

Compare Boothbay Harbor's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Boothbay Harbor

In Boothbay Harbor, August welcomes visitors with mild temperatures and a touch of summer warmth, setting it apart from the chillier months throughout the year. With an average temperature hovering around 20°C (67°F), the pleasant days invite outdoor activities, while the occasional rain — averaging 71 mm over about eight days — nourishes the lush coastal landscape. Coupled with high humidity levels reaching 83%, this month creates a unique atmosphere that feels both refreshing and cozy. For more insights into the region’s weather patterns, explore Boothbay Harbor Climate.