September Weather in Bridgehampton, United States

Last updated: February 24, 2025

In Bridgehampton, September ushers in the transition from summer to fall, featuring mild temperatures that average around 20°C (69°F), with highs reaching up to 26°C (79°F) and lows dipping to 12°C (55°F). This month experiences a moderate level of humidity at 75%, which can make the warm days feel more balmy. However, locals and visitors should be prepared for occasional rainfall, as 99 mm (3.9 in) of precipitation is recorded over approximately 10 days. As the landscape shifts, September in Bridgehampton offers a charming mix of warmth and early autumn ambiance, perfect for outdoor activities and enjoying the vibrant scenery.

September Temperature in Bridgehampton

As summer fades and autumn begins, September in Bridgehampton brings a delightful transition in temperatures, marked by a pleasant embrace of warmth. With minimums settling around 12°C (55°F) and averages peaking at 20°C (69°F), the early part of the month often feels like a continuation of summer’s mild days. The maximum temperatures reach up to 26°C (79°F), offering plenty of opportunities to enjoy the outdoors before the chill of October sets in. This gradual cooling trend, following the heat of July and August, signals the start of a beautiful fall season, making September a particularly enchanting time to explore the region’s scenic charm.

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

The chart illustrates September temperature patterns in Bridgehampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec363739465464727368615042
Data source: Temperature data for Bridgehampton 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 Bridgehampton

In September, Bridgehampton experiences a notable consistency in its precipitation patterns, with 99 mm (3.9 in) of rainfall over 10 days. This month mirrors the drier conditions of summer, as it received slightly less precipitation than the preceding August, which saw 103 mm (4.0 in). September serves as a transitional period, bridging the warm, sunny days of summer with the impending rains of fall, evidenced by the uptick in rainfall anticipated in October, where precipitation climbs to 160 mm (6.3 in) across 14 days. This rhythm in September’s climate hints at the natural ebb and flow of the seasons, subtly preparing the landscape for the richer and wetter autumn to come.

September Precipitation Trends in Bridgehampton

The chart displays monthly precipitation patterns in Bridgehampton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89123113137129729910399161113147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bridgehampton

In September, Bridgehampton experiences a humidity level of 75%, reflecting a gradual decline as summer transitions into autumn. This month marks the continuation of a trend observed over the warmer months, where humidity starts to dip from its peak of 84% in January and February. As temperatures cool, September's humidity remains consistent with August and October, both also at 75%. Overall, the shift towards lower humidity levels is evident, with the summer months averaging around the 76-78% range, giving way to a fresher atmosphere as the year progresses. This pattern not only enhances the region's charm but also provides a comfortable respite from the higher humidity levels of earlier months.

September Average Humidity in Bridgehampton

This chart illustrates the average monthly humidity levels in Bridgehampton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bridgehampton

As summer fades into autumn, September in Bridgehampton sees a slight dip in the UV Index, measuring 8, which still falls under the very high exposure category, with a burn time of just 15 minutes. This marks a gradual transition from the peak of summer, where July and August both recorded indices of 10 for the highest sun exposure levels. The trend highlights the importance of continued sun safety practices even as the season changes, especially since the UV rays remain potent. As you enjoy the last rays of summer, be sure to stay protected; for more detailed information, visit Bridgehampton UV Index.

Maximum UV Index Levels in Bridgehampton for September

The chart shows the monthly maximum UV Index (UVI) for Bridgehampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Bridgehampton 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 Bridgehampton

As summer gracefully transitions into autumn, September in Bridgehampton shines with an impressive 281 hours of sunlight, marking a delightful conclusion to the sun-drenched months. This figure reflects a gradual decline from the peak of 349 hours in July, but still remains vibrant compared to the shorter days of October. Notably, sunshine hours gradually increase from the winter months, starting with a mere 153 hours in January, and showcasing a remarkable upward trend through the year, peaking in the heart of summer. While September signals a shift towards cooler weather, its significant hours of sunshine ensure that the beauty of late summer lingers, inviting residents and visitors alike to enjoy the breathtaking landscapes of Bridgehampton bathed in golden light.

Monthly Sunshine Duration in Bridgehampton: September Highlighted

The September sunshine duration represents the total number of hours Bridgehampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec153h185h261h250h291h321h349h327h281h229h208h177h
Data source: Bridgehampton September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bridgehampton During September

In Bridgehampton, the likelihood of sunny weather in September holds steady at 49%, a trend consistent with earlier months like January and April. This marks a transition from the sunnier peak of summer, as the sunniest months of March and June recede with their 59% and 41% chances, respectively. As summer wanes, the probability of sunshine drops compared to the height of July and August, which hover around the 45% mark. While September may not boast the sunniest days of the year, it still enjoys a fair share of brightness, making it an appealing time for those seeking a balance of pleasant weather before autumn's embrace.

Percentage of Sunny Days in September in Bridgehampton

The chart illustrates the percentage of sunny days in Bridgehampton 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 Bridgehampton experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%31%59%49%46%41%45%35%49%46%53%32%
Data source: Bridgehampton September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bridgehampton in September

As summer transitions into fall, September offers a gentle decline in daylight duration for the residents of Bridgehampton, with approximately 12 hours of sunlight. This marks a shift from the peak of 15 hours in June and maintains a balance between the warmer months of 14 hours in July and 13 hours in August. The gradual easing of light sets the stage for the vibrant autumn landscape, as daylight begins to wane, leading the way to October's 11 hours. This cyclical change not only highlights the natural rhythm of the seasons but also invites a sense of reflection as the days slowly tighten their embrace around the coming winter months.

Average Daylight Hours in Bridgehampton for September

The chart illustrates the variation in daylight duration in Bridgehampton throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 35m10h 38m11h 58m13h 20m14h 29m15h 3m14h 44m13h 43m12h 24m11h 3m9h 52m9h 15m
Data source: Bridgehampton daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bridgehampton

As September unfolds in Bridgehampton, the winds begin to pick up again, averaging 6.1 m/s (14 mph), marking a subtle transition from the summer's calmer breezes. This uptick reflects a broader trend as wind speeds show a gradual increase after the lows of July and August, where they dipped to 4.8 m/s (11 mph) and 4.9 m/s (11 mph) respectively. It's a coveted time for sailors and outdoor enthusiasts who welcome the fresh, invigorating gusts that herald the arrival of autumn. With October bringing winds back up to 6.7 m/s (15 mph), the change in pace not only enlivens the landscape but also sets the stage for the vibrant, autumnal activities that follow.

Average September Wind Speed in Bridgehampton

The chart displays monthly wind speed patterns in Bridgehampton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.37.36.96.26.05.64.84.96.1 m/s6.76.86.6
Data source: Bridgehampton September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bridgehampton Compares to Other Months

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

September and January offer starkly contrasting weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a warm average of 20°C (69°F) and can peak at 26°C (79°F). The month sees a fair amount of rain, with 99 mm (3.9 in) spread over 10 days and a comfortable humidity level of 75%. In contrast, January is much colder, with temperatures plummeting to a minimum of -13°C (8°F) and averaging just 2°C (37°F), reaching a maximum of 13°C (56°F). Precipitation is slightly less at 89 mm (3.5 in) over 9 days, but the humidity is higher at 84%. For more detailed weather information, check Bridgehampton weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 12°C (55°F) to a warm average of 20°C (69°F), with maximum highs reaching 26°C (79°F). The season is generally wetter, with about 99 mm (3.9 in) of precipitation over approximately 10 days and a humidity level of 75%. Conversely, February experiences much colder temperatures, ranging from a frigid -12°C (11°F) to an average of only 3°C (37°F), peaking at 12°C (53°F). This month sees even higher precipitation at 123 mm (4.8 in) across 11 days, with humidity levels rising to 84%. For a more detailed look at the specifics of February weather, you can visit Bridgehampton weather in February.

September and March exhibit strikingly different weather patterns. In September, temperatures range from a mild 12°C (55°F) at night to a warm 26°C (79°F) during the day, with an average temperature of 20°C (69°F). This month experiences around 99 mm (3.9 in) of precipitation over roughly 10 days, accompanied by a humidity level of 75%.

Conversely, March is much cooler, with temperatures dipping as low as -7°C (20°F) at night and reaching a maximum of 15°C (59°F) during the day, averaging only 4°C (39°F). Despite having slightly higher precipitation at 113 mm (4.5 in) over the same number of days, March's humidity is notably higher at 82%. For more details about the specific weather conditions in March, you can check Bridgehampton weather in March.

September and April present quite different weather experiences. In September, temperatures are notably milder, with an average of 20°C (69°F) and a maximum reaching 26°C (79°F), making it a comfortable time of year. Conversely, April sees much cooler temperatures, averaging only 8°C (47°F) with a maximum of 16°C (61°F). While both months experience rain, April has slightly higher precipitation at 137 mm (5.4 in) over 12 days, compared to September's 99 mm (3.9 in) over 10 days. Humidity levels remain relatively high in both months, with September at 75% and April at 79%. For more detailed information, you can check Bridgehampton weather in April.

In comparing the weather of September and May, it is clear that September tends to be warmer and drier. September sees average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 26°C (79°F), while May has cooler averages, with temperatures dipping to a minimum of 4°C (39°F) and peaking at just 20°C (69°F). Additionally, May experiences slightly higher precipitation levels at 129 mm (5.1 in) over 13 days, compared to September's 99 mm (3.9 in) over 10 days. Both months share similar humidity levels at 75%, but September's warmer and less rainy conditions make it feel more pleasant overall. For more details, you can check Bridgehampton weather in May.

In comparing the weather between September and June, we observe that September tends to be slightly warmer, with average temperatures around 20°C (69°F), compared to June's 18°C (64°F). The maximum temperatures in September reach up to 26°C (79°F), while June peaks at 24°C (75°F). Additionally, September experiences more rainfall, averaging 99 mm (3.9 in) over 10 days, compared to June's 72 mm (2.9 in) over 8 days. Humidity levels are relatively similar, with September at 75% and June slightly higher at 78%. For more details on the climate specifics for June, you can visit Bridgehampton weather in June.

When comparing the weather in September to that of July, notable differences emerge. September tends to be cooler, with a minimum temperature of 12°C (55°F) and an average of 20°C (69°F), while July starts warmer, boasting a minimum temperature of 16°C (61°F) and an average of 22°C (72°F). Both months experience similar levels of precipitation at 99 mm (3.9 in) over approximately 10 days, but September offers slightly higher humidity at 75%, compared to July's 76%. For a more detailed look at July conditions, you can refer to Bridgehampton weather in July.

In comparing the weather between September and August, September tends to be cooler, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 26°C (79°F), while August features warmer averages, with a minimum of 17°C (63°F) and a maximum of 27°C (80°F). Both months experience relatively high humidity levels, with September at 75% and August slightly higher at 76%. Precipitation is similar in both months, with September receiving 99 mm (3.9 in) over 10 days and August experiencing 103 mm (4.0 in) over 9 days. For more detailed information about August weather, check out Bridgehampton weather in August.

In September, temperatures generally hover between a minimum of 12°C (55°F) and a maximum of 26°C (79°F), offering a pleasant average of 20°C (69°F). The month sees around 99 mm (3.9 in) of precipitation spread over 10 days, with humidity levels remaining steady at 75%.

In contrast, October brings cooler temperatures, with a minimum dropping to 5°C (42°F) and an average of 16°C (61°F). Although the maximum temperature reaches 24°C (75°F), the month is significantly wetter, with 160 mm (6.3 in) of rainfall over 14 days. The humidity remains constant at 75%, creating a similar moisture level compared to September. For a more detailed look, you can read about Bridgehampton weather in October.

September and November exhibit distinct weather patterns, reflecting the transition from late summer to late autumn. In September, temperatures range from a comfortable minimum of 12°C (55°F) to a warm maximum of 26°C (79°F), with an average of 20°C (69°F). Contrastingly, November sees much cooler temperatures, with minima dipping to -5°C (24°F) and an average of 10°C (50°F), peaking at 19°C (67°F). Additionally, while September experiences 99 mm of precipitation over approximately 10 days, November receives slightly more rain at 113 mm, maintaining a similar frequency of wet days. Humidity levels also rise in November to 80%, compared to 75% in September, contributing to the overall chill in the air. For a detailed look at weather trends during this time, you can view Bridgehampton weather in November.

In September, the weather is mild with average temperatures around 20°C (69°F), featuring warm days and cooler nights, while December brings a much colder climate, where average temperatures drop to around 5°C (42°F). Precipitation also increases from 99 mm (3.9 in) in September to 147 mm (5.8 in) in December, with slightly more rainy days in the latter month. Additionally, humidity remains relatively high in both months, with September at 75% and December slightly higher at 80%. For more specific details about December's weather, you can refer to this link: Bridgehampton weather in December.

Compare Bridgehampton's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bridgehampton

September in Bridgehampton marks a vibrant transition as summer gives way to the crispness of fall. With an average temperature that sits comfortably around 20°C (69°F), this month balances warm days with cooler evenings, making it ideal for outdoor activities. While rainfall is noticeable with around 10 days of precipitation, the humidity remains relatively high at 75%, creating a unique atmosphere that feels both refreshing and invigorating. The 99 mm (3.9 in) of rain this month is a reminder of the approaching change, setting September apart from the drier summer months. Embrace the beauty of early autumn in Bridgehampton and explore more about the region's climate by checking out Bridgehampton Climate.