September Weather in Bridgton, United States

Last updated: February 24, 2025

In September, Bridgton experiences a dynamic blend of weather, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 31°C (89°F), averaging around a comfortable 17°C (63°F). This month brings a total of 60 mm (2.4 in) of rainfall over 8 days, contributing to a humidity level of 71%, which enhances the lush beauty of the surrounding landscape. Whether enjoying the crisp mornings or the warmer afternoons, residents and visitors alike can relish the vibrant autumnal shifts that characterize this picturesque time of year.

September Temperature in Bridgton

In September, Bridgton experiences a pleasant transition as summer begins to wane. With overnight lows averaging around 2°C (35°F) and daytime highs reaching up to 31°C (89°F), the temperatures create a delightful backdrop for autumn activities. The average temperature settles at a comfortable 17°C (63°F), embracing a vibrant blend of warm days and cool nights. As the month progresses, the drop in temperature hints at the upcoming season, contrasting sharply with the sweltering heat of July and August, where peaks reached 35°C (95°F). This month’s moderate climate invites both locals and visitors alike to indulge in outdoor adventures, making it an enchanting time to explore the natural beauty of Bridgton before the chill of fall fully sets in.

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

The chart illustrates September temperature patterns in Bridgton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec222431435566717063513727
Data source: Temperature data for Bridgton 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.

September Precipitation in Bridgton

In September, Bridgton experiences a notable decrease in precipitation, with an average of 60 mm (2.4 in) over 8 days of rainfall. This marks a shift from the wet summer months, particularly July, which recorded the year’s highest precipitation at 136 mm (5.4 in). As summer fades, the lighter rain of September suggests a transition into autumn, offering a brief reprieve before the wetter months of October and November arrive. The consistent pattern of moderate rain continues, yet September stands out as a notably drier month, allowing residents to enjoy the crisp beginnings of fall without the interruption of frequent downpours.

September Precipitation Trends in Bridgton

The chart displays monthly precipitation patterns in Bridgton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81887312578831368160122107114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bridgton

As September arrives in Bridgton, the humidity begins to shift slightly from the drier summer months, measuring 71%. This increase reflects a transition as the air starts to retain more moisture following the relatively comfortable 66% experienced in August. Overall, the trend from January's peak humidity of 86% gradually decreases, reaching its lowest in July at 67% before inching back up in September. This pattern suggests a distinctive rhythm to the weather, where crisp fall days linger on the horizon, prompting a gradual return to more humid conditions as autumn approaches.

September Average Humidity in Bridgton

This chart illustrates the average monthly humidity levels in Bridgton, 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 Bridgton

As the summer fades, September in Bridgton sees a UV Index of 7, categorizing it as high exposure, with a burn time of just 25 minutes. This marks a slight decline from the peak of the summer months, where UV levels reached a maximum of 10 in June and consistently stayed high throughout July and August. However, September still calls for caution as skin can still burn quite quickly. After the intense UV radiation of the summer season, the trend shows a gradual reduction, paving the way for milder conditions in the coming months. Stay informed and protected by checking the Bridgton UV Index regularly to enjoy the beautiful autumn days safely!

Maximum UV Index Levels in Bridgton for September

The chart shows the monthly maximum UV Index (UVI) for Bridgton 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.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Bridgton 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 Bridgton

As summer fades into early autumn, September in Bridgton, United States, continues to bask in a generous 289 hours of sunshine, showcasing a vibrant transition from the peak summer months. This impressive figure, while slightly lower than the sun-soaked heights of July and August, remains well above the yearly average and is indicative of a lingering warmth. May sets the stage with 276 hours, and as the days stretch into June and July, sunshine reaches its zenith with 325 and 328 hours, respectively, encouraging outdoor adventures and late-season blooms. Just as the fall foliage begins to emerge, September provides a graceful wind-down, offering a perfect canvas for appreciating nature's artistry, before the shorter days of October close in. Each passing month illustrates a gentle ebb and flow of sunlight, painting Bridgton with the warmth and vibrancy of early autumn.

Monthly Sunshine Duration in Bridgton: September Highlighted

The September sunshine duration represents the total number of hours Bridgton 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.
JanFebMarAprMayJunJulAugSepOctNovDec143h179h254h234h276h325h328h332h289h203h183h171h
Data source: Bridgton September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bridgton During September

In Bridgton, United States, the likelihood of enjoying sunny weather in September rises to 41%, marking a slight improvement compared to the summer months, where July and August dip to 28% and 31% respectively. This seasonal trend suggests a transition into early fall, as the days begin to cool. Notably, September’s sunshine probability outshines the April and May averages, which hover around 33% and 35%. As the summer heat wanes, residents and visitors can anticipate a refreshing chance of sunny days, making it a perfect time for outdoor activities before the inevitable shift into the more overcast months that follow.

Percentage of Sunny Days in September in Bridgton

The chart illustrates the percentage of sunny days in Bridgton 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 Bridgton experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%35%58%33%35%39%28%31%41%34%54%32%
Data source: Bridgton September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bridgton in September

As summer fades into autumn, September brings a gentle transition in Bridgton, United States, with daylight lasting approximately 12 hours. This marks a gradual decline from the peak of 15 hours experienced in June and July, highlighting the shift towards shorter days. The trend continues with August seeing a reduction to 13 hours, and the decrease to 12 hours in September serves as a precursor to the more significant shortening that follows in October and November. This evolving daylight pattern not only signifies the approach of fall but also invites residents to embrace outdoor activities in the mild September sun before the shorter days of late autumn set in.

Average Daylight Hours in Bridgton for September

The chart illustrates the variation in daylight duration in Bridgton throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 18m10h 28m11h 57m13h 28m14h 45m15h 24m15h 3m13h 54m12h 27m10h 56m9h 37m8h 56m
Data source: Bridgton daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bridgton

As September arrives in Bridgton, the winds begin to shift slightly, averaging a gentle 2.5 m/s (6 mph). This transitional month mirrors the lighter breeze of August, which recorded the year's lowest wind speeds at 2.0 m/s (4 mph). Throughout the summer, wind speeds gradually decreased, reaching a low in July. However, September shows a slight uptick, indicating a subtle readiness for the upcoming autumn. Following this, October sees a slight drop again, highlighting the seasonal fluctuation in Bridgton's breezy atmosphere. Overall, September serves as a reminder of the gentle winds that precede the vibrant changes of fall, offering a serene backdrop to the picturesque landscape.

Average September Wind Speed in Bridgton

The chart displays monthly wind speed patterns in Bridgton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.63.33.02.52.82.22.02.5 m/s2.42.62.5
Data source: Bridgton September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bridgton Compares to Other Months

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

September and January present stark contrasts in weather. In September, temperatures range from a comfortable minimum of 2°C (35°F) to a warm maximum of 31°C (89°F), with an average of 17°C (63°F). The month experiences 60 mm (2.4 in) of precipitation across eight days, while humidity averages around 71%. In contrast, January brings much harsher conditions, with temperatures plummeting to a chilling minimum of -28°C (-19°F) and an average of -6°C (22°F), peaking at 13°C (55°F). This winter month sees slightly higher precipitation at 81 mm (3.2 in) but also spans the same eight days of rain. Humidity rises to 86%, contributing to the crisp, biting air. For a detailed overview of January weather, you can visit Bridgton weather in January.

September and February present stark contrasts in weather, highlighting the transition from late summer to deep winter. In September, temperatures range from a cool 2°C (35°F) at night to a warm 31°C (89°F) during the day, with an average of 17°C (63°F). This month sees about 60 mm (2.4 in) of precipitation over eight days and humidity levels around 71%. Conversely, February is characterized by much colder conditions, with nighttime lows plunging to -25°C (-12°F) and daytime highs reaching only 17°C (63°F). The average temperature for February rests at -4°C (24°F), accompanied by higher precipitation of 88 mm (3.5 in) across ten days and increased humidity at 84%. For more detailed information on February weather conditions, visit Bridgton weather in February.

September and March present contrasting weather patterns in terms of temperature and overall climate conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 31°C (89°F) during the day, with an average of 17°C (63°F), accompanied by relatively lower humidity at 71%. In contrast, March experiences much colder temperatures, with a minimum of -19°C (-3°F) and an average of 0°C (31°F), peaking at 19°C (66°F); this month also has higher humidity levels at 82%. Additionally, while September sees 60 mm (2.4 in) of precipitation over about 8 days, March has slightly more precipitation at 73 mm (2.9 in) but only over 7 days. For more detailed information, you can check Bridgton weather in March.

When comparing the weather in September and April, we see distinct differences in temperature, precipitation, and humidity. September boasts a warmer average temperature of 17°C (63°F), with maximums reaching up to 31°C (89°F), making it a comfortable month. In contrast, April is much cooler, with an average of only 6°C (44°F) and a minimum temperature that can drop to -6°C (21°F).

Precipitation levels also vary significantly; September receives about 60 mm (2.4 in) over approximately 8 days, while April experiences more rainfall, totaling 125 mm (4.9 in) across around 12 days. Additionally, April's humidity is slightly higher at 80%, compared to September's 71%. For more specifics on Bridgton's climate in April, you can check Bridgton weather in April.

In comparing the weather of September and May, we see some notable differences and similarities. September generally offers a wider temperature range, with minimums around 2°C (35°F) and maximums reaching up to 31°C (89°F), while May has a slightly cooler average, with minimums around 1°C (34°F) and maximums peaking at 32°C (90°F). Precipitation levels are relatively close, with September receiving about 60 mm (2.4 in) over 8 days, while May sees slightly more with 78 mm (3.1 in) over 9 days. Humidity levels are comparable as well, with September at 71% and May at 72%. For a more detailed look at May weather, you can check Bridgton weather in May.

When comparing the weather in September and June, both months exhibit mild temperatures, with September averaging 17°C (63°F) and June slightly warmer at 19°C (66°F). However, June sees higher maximum temperatures, reaching up to 35°C (95°F), while September's peak is 31°C (89°F). Precipitation is more pronounced in June, with 83 mm (3.3 in) over approximately 10 days, compared to September's 60 mm (2.4 in) over 8 days. Humidity levels remain similar, with September at 71% and June slightly higher at 72%. For more detailed weather insights during June, you can check Bridgton weather in June.

When comparing the weather in September to July, significant differences emerge. September experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 17°C (63°F), while July boasts warmer conditions, with a minimum of 10°C (50°F) and an average of 22°C (71°F). Additionally, July tends to be wetter, receiving 136 mm (5.4 in) of precipitation over 12 days compared to September's 60 mm (2.4 in) over 8 days. Humidity levels are slightly higher in September at 71%, compared to July's 67%. For a more detailed look at July's weather patterns, visit Bridgton weather in July.

September weather in Bridgton brings a notable drop in minimum temperatures, with lows around 2°C (35°F), compared to August's warmer minimum of 9°C (48°F). Average temperatures also decline from 21°C (70°F) in August to 17°C (63°F) in September, though the maximum temperature remains similar, peaking at 31°C (89°F) in September compared to 33°C (91°F) in August. Precipitation levels are slightly lower in September, with 60 mm (2.4 in) over 8 days, while August records 81 mm (3.2 in) over 10 days. Additionally, September experiences a higher humidity level at 71%, compared to 66% in August. For more detailed information about the weather in August, you can visit Bridgton weather in August.

September and October present a notable shift in weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a pleasant average of 17°C (63°F), peaking at a warm 31°C (89°F). The month receives approximately 60 mm (2.4 in) of precipitation over 8 days, accompanied by a humidity level of 71%. In contrast, October experiences cooler temperatures with a minimum of -2°C (28°F) and an average of 11°C (51°F), reaching a maximum of 27°C (80°F). This month sees increased rainfall, totaling around 122 mm (4.8 in) over 11 days, and a higher humidity level of 78%. For more detailed insights, you can check out Bridgton weather in October.

September and November exhibit striking differences in weather patterns. September typically boasts a milder climate with temperatures ranging from a minimum of 2°C (35°F) to an average of 17°C (63°F) and highs reaching 31°C (89°F). In contrast, November sees temperatures drop significantly, featuring a minimum of -16°C (4°F) and averaging around 3°C (37°F), with a maximum of 22°C (72°F) on warmer days. Additionally, November receives more precipitation, totaling 107 mm (4.2 in) over 11 days compared to September's 60 mm (2.4 in) across 8 days, and experiences a higher humidity level of 84%. For more detailed insights into the November climate, you can check Bridgton weather in November.

In September, the weather is considerably milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 31°C (89°F) and an average of 17°C (63°F). The month experiences about 60 mm (2.4 in) of precipitation over 8 days, with humidity levels at 71%. In contrast, December brings a stark change, with much colder temperatures ranging from a frigid minimum of -26°C (-14°F) to a maximum of 15°C (59°F), averaging around -3°C (27°F). This winter month has higher precipitation of 114 mm (4.5 in) over 10 days, accompanied by increased humidity at 81%. For more detailed information, check out Bridgton weather in December.

Compare Bridgton's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bridgton

As September ushers in the transition from summer to autumn in Bridgton, the weather reflects a delightful mix of warmth and crispness. With average temperatures hovering around a comfortable 17°C, it's a time when days can occasionally soar to a toasty 31°C, while nights might dip to a refreshing 2°C. Unlike the hotter summer months, September brings moderate humidity and a notable increase in rainfall with about 60 mm over eight days, transforming the landscape with vibrant fall colors. This unique blend of warmth and coolness makes September a charming period for both outdoor adventures and cozy evenings. For a deeper dive into the climate patterns of this beautiful region, check out Bridgton Climate.