September Weather in Ogunquit, United States

Last updated: February 24, 2025

In Ogunquit, United States, September offers a pleasant transition into autumn, featuring a maximum temperature of 28°C (83°F) and an average temperature of 18°C (65°F), making it an ideal time for outdoor activities. The minimum temperature can drop to around 9°C (49°F), inviting layers for cooler evenings. While the month experiences a total precipitation amount of 80 mm (3.2 in) over approximately 8 days, a moderate humidity level of 71% adds a hint of moisture in the air. This combination of mild temperatures and occasional rain creates a serene atmosphere, perfect for enjoying the stunning coastal scenery.

September Temperature in Ogunquit

As September rolls into Ogunquit, the summer warmth begins to soften, ushering in a delightful transition towards autumn. The minimum temperature dips to a mild 9°C (49°F), while daily averages settle comfortably at 18°C (65°F), showcasing a pronounced shift from the balmy days of August. Max temperatures can still reach a pleasant 28°C (83°F), allowing for lingering sunny afternoon outings. This blend of cooler mornings and warm afternoons creates an inviting atmosphere, perfect for outdoor activities as the leaves begin to hint at their impending transformation. Overall, September in Ogunquit strikes a harmonious balance between the tail end of summer and the crisp embrace of fall, making it an ideal time to explore the stunning coastal landscape.

September Weather in Ogunquit: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ogunquit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec313236445363707064554335
Data source: Temperature data for Ogunquit 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.

September Precipitation in Ogunquit

In September, Ogunquit experiences a moderate level of precipitation, with 80 mm (3.2 in) of rainfall spread over about 8 days. This month marks a transition from the drier summer months, notably August, which saw significantly less rain at 61 mm (2.4 in) over just 7 days. Interestingly, while September's precipitation is relatively light compared to the wetter months that follow, such as October, which averages 152 mm (6.0 in), it serves as a reminder of the approaching fall season. Overall, the patterns indicate a gradual increase in rainfall as summer wanes, paving the way for the more intense precipitation typical of late autumn.

September Precipitation Trends in Ogunquit

The chart displays monthly precipitation patterns in Ogunquit, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec871029414686751106180152115142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Ogunquit

In Ogunquit, United States, September marks a transition in humidity levels as summer wanes into autumn. With humidity averaging 71%, it remains comfortably moderate, offering a pleasant climate for outdoor activities. This slight uptick from the summer lows of 66-67% in August indicates a gradual return to the more humid conditions characteristic of spring and early fall. As the year progresses, humidity rises again, peaking in the winter months, notably in January at 86%. This trend highlights Ogunquit's rich seasonal variation, where the warmth of summer gives way to the crisp freshness of fall, keeping the atmosphere vibrant and inviting for both locals and visitors alike.

September Average Humidity in Ogunquit

This chart illustrates the average monthly humidity levels in Ogunquit, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ogunquit

As September rolls into Ogunquit, the UV Index reflects a notable transition, settling at 7, which categorizes the exposure as high. This indicates a slight decrease from the peak summer months, where the UV Index reached 10 in June and remained at 9 during July and August. Now, with a burn time of 25 minutes, it's essential to remain vigilant about sun protection. The rosy days of early fall still call for precautions, especially with the lingering warmth in the air. As we prepare for the shift toward cooler months, the sun's intensity continues to remind us of the importance of sunscreen and shade. For detailed information on the UV Index throughout the year, check out Ogunquit UV Index.

Maximum UV Index Levels in Ogunquit for September

The chart shows the monthly maximum UV Index (UVI) for Ogunquit in September, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Ogunquit September 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.

September Sunshine in Ogunquit

As summer gives way to autumn, September in Ogunquit still basks in a generous dose of sunshine, offering 283 hours of golden rays—a delightful close to the sunny season. This month shines brightly as it maintains a high level of sunshine, only slightly dipping from the peak summer months of July and August, which each enjoy an impressive 335 hours. The transition into fall brings a gradual decrease in sunshine hours, yet September retains a warmth that encourages outdoor activities and picturesque coastal views. Comparatively, October begins to register a more significant decline with 222 hours, marking the onset of shorter days. Overall, September stands out as a bridge between the vibrant energy of summer and the tranquil beauty of fall, providing Ogunquit with a charming, sunlit farewell to the warmer months.

Monthly Sunshine Duration in Ogunquit: September Highlighted

The September sunshine duration represents the total number of hours Ogunquit experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec147h184h256h246h298h331h335h335h283h222h193h173h
Data source: Ogunquit September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ogunquit During September

In Ogunquit, United States, September stands out with a 45% chance of sunny weather, marking a notable increase compared to the summer months of July and August, which see lower probabilities of around 32% and 33%, respectively. As summer transitions into fall, September offers a refreshing uptick in sunshine, suggesting a pleasant atmosphere for outdoor activities. Interestingly, this month follows the higher likelihood of sunny days found in March (61%), yet remains more favorable than the often overcast April and May, both hovering around 39%. While the sunny days become less frequent as the year progresses—dropping to 37% in October and 32% in December—September’s moderate chance of sunshine provides a delightful window to enjoy Ogunquit’s natural beauty before the chill of autumn sets in.

Percentage of Sunny Days in September in Ogunquit

The chart illustrates the percentage of sunny days in Ogunquit throughout the year, with September 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 Ogunquit experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%35%61%39%39%39%32%33%45%37%54%32%
Data source: Ogunquit September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ogunquit in September

As September unfolds in Ogunquit, daylight gracefully starts to wane, offering approximately 12 hours of sunlight. This month marks a transition, following the vibrant summer months of July and August, which basked in 14 and 13 hours of daylight respectively. The progression from the bright, lengthy days of summer to the more subdued light of early autumn reflects a natural rhythm. While still holding onto some of summer's warmth, September hints at the impending shorter days, reminiscent of the 10 hours of daylight that will soon characterize October. Overall, this month serves as a beautiful bridge between the sunny heights of summer and the crisp, shorter days of fall.

Average Daylight Hours in Ogunquit for September

The chart illustrates the variation in daylight duration in Ogunquit throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 23m10h 31m11h 57m13h 26m14h 41m15h 18m14h 58m13h 51m12h 26m10h 58m9h 41m9h 1m
Data source: Ogunquit daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ogunquit

As summer fades into autumn, September winds in Ogunquit offer a subtle transition, with an average speed of 4.2 m/s (9 mph). This gentle breeze serves as a refreshing shift from the quieter summer months of July and August, which saw the calmest winds at just 3.7 m/s (8 mph) and 3.6 m/s (8 mph), respectively. As the year progresses towards October, the wind picks up slightly, hinting at the brisk conditions to come, with speeds rising again to 4.7 m/s (10 mph). While winter winds bring more intensity, September's moderate breezes create a perfect atmosphere for enjoying Ogunquit's coastal charm, making it an ideal time for leisurely strolls along the beach as nature begins its subtle transformation.

Average September Wind Speed in Ogunquit

The chart displays monthly wind speed patterns in Ogunquit, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.05.05.64.64.44.53.73.64.2 m/s4.74.85.1
Data source: Ogunquit September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ogunquit Compares to Other Months

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

September and January present a stark contrast in weather conditions. In September, temperatures range from a pleasant minimum of 9°C (49°F) to a warm maximum of 28°C (83°F), with an average temperature of 18°C (65°F). The month experiences about 80 mm (3.2 in) of precipitation over approximately 8 days, coupled with a moderate humidity level of 71%. In comparison, January sees much colder temperatures, with a minimum plummeting to -19°C (-1°F) and an average of -1°C (31°F), peaking at only 14°C (57°F). This winter month also receives slightly more precipitation at 87 mm (3.4 in) over 9 days, accompanied by higher humidity at 86%. For more detailed information, visit Ogunquit weather in January.

September and February present remarkably contrasting weather patterns. In September, temperatures range from a mild 9°C (49°F) at night to a warm 28°C (83°F) during the day, with an average of 18°C (65°F). The month experiences about 80 mm (3.2 in) of precipitation over 8 days, coupled with a humidity level of 71%. In stark contrast, February sees much colder temperatures, with a minimum of -15°C (5°F) and a maximum of 15°C (59°F), averaging around 0°C (32°F). This winter month records a higher precipitation level of 102 mm (4.0 in) spread over 10 days, accompanied by a humidity level of 84%. The differences highlight September as a time of warmth and comfort, while February is characterized by cold and damp conditions. For more detailed information on February weather in Ogunquit, you can visit Ogunquit weather in February.

September and March present contrasting weather experiences, highlighting the transition between seasons. In September, temperatures range from a minimum of 9°C (49°F) to a pleasant average of 18°C (65°F), peaking at 28°C (83°F). The month sees about 80 mm (3.2 in) of precipitation over approximately 8 days, with humidity levels around 71%. In stark contrast, March features much colder temperatures, with a minimum of -13°C (8°F) and an average of only 2°C (36°F), reaching a maximum of 14°C (58°F). Despite the chill, March is slightly wetter, accumulating around 94 mm (3.7 in) of precipitation over 10 days, coupled with higher humidity at 82%. For more details on March weather, check out Ogunquit weather in March.

When comparing the weather of September and April, it's clear that September typically offers warmer temperatures, with an average of 18°C (65°F) and a maximum reaching 28°C (83°F), while April's average temperature is significantly cooler at 7°C (45°F) and peaks at 20°C (69°F). Additionally, precipitation levels and humidity differ; April experiences more rainfall at 145 mm (5.7 in) over 12 days, compared to September's 80 mm (3.2 in) over 8 days. Humidity is also slightly higher in April at 80%, versus September's 71%. For a more detailed look at April weather, you can check out Ogunquit weather in April.

In comparing the weather of September and May, we see notable differences in temperature and overall conditions. September experiences a broader temperature range, with minimums around 9°C (49°F) and maximums reaching up to 28°C (83°F), creating a generally warmer atmosphere with an average temperature of 18°C (65°F). In contrast, May is cooler, with minimum temperatures dropping to 3°C (37°F) and maximums peaking at 24°C (76°F), resulting in a lower average of 12°C (53°F). Both months have similar levels of precipitation—September sees about 80 mm (3.2 in) over 8 days, while May records slightly more with 86 mm (3.4 in) over 10 days. Humidity levels remain quite comparable, with September at 71% and May at 72%. For a closer look at conditions specifically in Ogunquit, check out the Ogunquit weather in May.

When comparing the weather in September and June, both months exhibit similar temperature ranges, with September showcasing a minimum of 9°C (49°F), an average of 18°C (65°F), and a maximum of 28°C (83°F). In contrast, June starts slightly cooler with a minimum of 8°C (47°F), an average of 17°C (63°F), and also peaks at 28°C (83°F). Precipitation levels are quite close, with September receiving 80 mm (3.2 in) over about 8 days, while June has slightly less at 75 mm (2.9 in) over the same number of days. Humidity levels remain similar, with September at 71% and June at 72%. For a detailed look at the weather specifics, you can check Ogunquit weather in June.

In September, temperatures begin to cool down, with a minimum of 9°C (49°F) and an average of 18°C (65°F), compared to the warmer July temperatures, which range from a minimum of 15°C (58°F) to an average of 21°C (70°F). While both months see relatively high humidity, September has a slightly higher level at 71%, versus July's 67%. Rainfall is also more common in July, with 110 mm (4.3 in) over 11 days, compared to September's 80 mm (3.2 in) over 8 days. For more details on the weather in July, you can visit Ogunquit weather in July.

In comparing the weather patterns of September and August, September offers cooler temperatures, with a minimum of 9°C (49°F) and an average of 18°C (65°F), compared to August's warmer minimum of 14°C (57°F) and average of 21°C (70°F). While both months experience similar maximum temperatures, with September reaching 28°C (83°F) and August hitting 29°C (84°F), September brings slightly higher levels of precipitation at 80 mm (3.2 in) over 8 days, versus August's 61 mm (2.4 in) over 7 days. Additionally, humidity is slightly elevated in September at 71%, compared to 66% in August. For more detailed insights into the weather during August, you can check Ogunquit weather in August.

In comparing the weather of September and October, it's clear that October brings a notable drop in temperatures, with minimums dipping from 9°C (49°F) in September to just 2°C (35°F). The average temperature also decreases significantly from 18°C (65°F) to 13°C (56°F), while the maximum temperature falls from 28°C (83°F) to 23°C (74°F). Additionally, October experiences higher precipitation levels, accumulating 152 mm (6.0 in) over 13 days compared to September's 80 mm (3.2 in) across 8 days. The humidity also sees a slight increase, rising from 71% in September to 78% in October. For more details, you can check out Ogunquit weather in October.

September weather is typically milder, with average temperatures around 18°C (65°F) and highs reaching up to 28°C (83°F). This month sees about 80 mm (3.2 in) of precipitation over roughly 8 days, accompanied by a humidity level of 71%. In contrast, November experiences a sharper drop in temperatures, with averages around 6°C (44°F) and a minimum that can plunge to -10°C (14°F). Precipitation increases to 115 mm (4.5 in) over 10 days, and humidity rises to 84%. For more detailed insights, you can visit Ogunquit weather in November.

In September, the weather in Ogunquit is notably warmer, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 28°C (83°F) and an average of 18°C (65°F). The month experiences relatively moderate precipitation of 80 mm (3.2 in) occurring over about 8 days, along with a humidity level of 71%. In stark contrast, December brings frigid temperatures, with a minimum dipping to -17°C (2°F), an average of just 2°C (35°F), and a maximum of 14°C (58°F). This month sees increased precipitation at 142 mm (5.6 in) over approximately 10 days, coupled with a higher humidity of 81%. For more insights, check out Ogunquit weather in December.

Compare Ogunquit's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ogunquit

As summer transitions into fall, September in Ogunquit showcases a delightful blend of warm days and cooler nights, making it a unique month compared to the sweltering peak of summer. With average temperatures drifting around a mild 18°C, visitors can enjoy outdoor activities while the humidity hovers around a comfortable 71%. Although September does see a bit more rain, with 80 mm of precipitation over an average of 8 days, this only adds to the charm of the coastal village, as the post-summer landscape flourishes. For a deeper understanding of how the weather shapes your visit, explore the details at Ogunquit Climate.