September Weather in East Hampton North, United States

Last updated: February 24, 2025

September in East Hampton North welcomes the transition from warm summer days to cooler autumn temperatures. With a maximum of 26°C (79°F) and an average of 20°C (69°F), the weather remains pleasantly mild. Nighttime brings a refreshing drop to a minimum of 12°C (55°F). However, expect a damp month, as 99 mm (3.9 in) of rain falls over approximately 10 days, contributing to a relatively high humidity of 75%. This blend of warmth and moisture creates an inviting atmosphere perfect for enjoying the natural beauty of the region while preparing for the seasonal shift.

September Temperature in East Hampton North

As September rolls into East Hampton North, a noticeable warmth begins to envelop the region, marking a transition from the sweltering summer months to the cooler embrace of autumn. With minimum temperatures ranging around 12°C (55°F) and peak daytime highs reaching up to 26°C (79°F), the weather offers a delightful, temperate average of 20°C (69°F). This is a significant shift following the summer's heat, but still comfortably warm enough for outdoor activities. As the days gradually shorten, the pleasant September climate encourages residents and visitors alike to savor the lingering summer vibes before the crisp fall air sets in, making it an ideal time for scenic strolls and local events.

September Weather in East Hampton North: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in East Hampton North, 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 East Hampton North 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 East Hampton North

September in East Hampton North typically experiences moderate precipitation, with an average of 99 mm (3.9 in) falling over approximately 10 days. This month feels like a continuation of the summer's wetter tendencies, as rainfall levels are similar to those of August, but slightly below the more intense autumnal deluge anticipated in October. While September marks the transition to autumn, the rainfall remains relatively consistent, aligning closely with the patterns observed in the preceding months. The gradual increase leading into October suggests a shift in weather dynamics, setting the stage for the more substantial rainfall that characterizes the fall season. Overall, September’s precipitation serves as a gentle reminder of summer's lingering influence while foreshadowing the wetter days ahead.

September Precipitation Trends in East Hampton North

The chart displays monthly precipitation patterns in East Hampton North, 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 East Hampton North

In September, East Hampton North experiences a subtle shift in its humidity levels, registering at 75%. This marks a continuation of the gradual decline that begins in late spring, as the average humidity reduces from 84% in January to its seasonal low in September. The humidity remains relatively stable in this early autumn month, mirroring the levels seen in both October and August. Overall, the trend reflects a mild transition from the humid warmth of summer towards the cooler and drier conditions that define the fall months, inviting a refreshing change in the coastal atmosphere.

September Average Humidity in East Hampton North

This chart illustrates the average monthly humidity levels in East Hampton North, 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 East Hampton North

As summer fades into autumn in East Hampton North, the UV Index begins its gradual decline, yet still holds a very high rating of 8 in September. This reflects a notable trend from the peak months of June and July, which both reached an intense 10, demanding vigilance for sun protection. Despite the drop, September's exposure category reinforces the importance of safeguarding your skin, with a burn time of just 15 minutes under direct sunlight. Following this month, the UV Index will continue to decrease, landing at a high 6 in October, hinting at the seasonal shift towards cooler, less sun-intensive days. For more details on UV exposure trends throughout the year, visit East Hampton North UV Index.

Maximum UV Index Levels in East Hampton North for September

The chart shows the monthly maximum UV Index (UVI) for East Hampton North 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: East Hampton North 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 East Hampton North

As September unfolds in East Hampton North, the sun continues to shine brightly, offering an impressive 281 hours of sunshine—a delightful embrace of late summer warmth as the season transitions. This month maintains a substantial share of daylight, following the peak summer sun of July with 349 hours and August with 327 hours. While the sunlight begins to wane as autumn approaches, September still holds onto the joyous energy of summer, making it an ideal time to savor the outdoors before the crispness of October sets in, which sees a decrease to 229 hours. The gradual decline in daylight hours, from the vibrant summer months to the softer light of early fall, beautifully illustrates nature's rhythm, inviting residents and visitors alike to bask in the last rays of summer's glow.

Monthly Sunshine Duration in East Hampton North: September Highlighted

The September sunshine duration represents the total number of hours East Hampton North 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: East Hampton North September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in East Hampton North During September

In East Hampton North, September enjoys a 49% chance of sunny weather, mirroring the sunlit prospects of both January and April. This month stands out with a consistency that reflects the transitional warmth of late summer, yet it doesn't quite reach the higher percentages found in the spring months, particularly March, which boasts a 59% likelihood of sunshine. Notably, while August dips down to just 35%, September offers a reassuring return to more equal weather patterns, aligning closely with the monthly averages. As the region prepares for fall, this moderate chance of sun encourages both locals and visitors to relish outdoor activities amid the beautiful backdrop of early autumn in the New England coast.

Percentage of Sunny Days in September in East Hampton North

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

Daylight Hours in East Hampton North in September

As summer gracefully transitions into autumn, September in East Hampton North showcases a delightful average of 12 hours of daylight. This marks a gentle decline from the 15 hours experienced in June, reflecting the gradual shortening of days that accompanies the changing season. Following the peak daylight of summer, the hours decrease steadily; 11 hours greet us in October and continue to dwindle through the winter months. This shift not only highlights the rhythm of the yearly cycle but also invites residents and visitors to savor the softening light and the vibrant hues of early fall, a perfect reminder of nature's beauty as it prepares for the approaching chill.

Average Daylight Hours in East Hampton North for September

The chart illustrates the variation in daylight duration in East Hampton North 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: East Hampton North daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in East Hampton North

As September rolls in, East Hampton North experiences a refreshing breeze with an average wind speed of 6.1 m/s (14 mph), offering a subtle shift after the summer's gentle whispers. This uptick from the calmer summer months—where July and August dip to around 4.8-4.9 m/s—signals a return to more invigorating conditions as autumn approaches. Notably, September's winds are a prelude to the seasonal shift, where October and November see a noticeable rise back to 6.7 m/s and 6.8 m/s, respectively. This pattern highlights a dynamic transition in the region’s atmospheric ambiance, inviting residents and visitors alike to embrace the crisp vitality of fall.

Average September Wind Speed in East Hampton North

The chart displays monthly wind speed patterns in East Hampton North, 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: East Hampton North September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in East Hampton North Compares to Other Months

The weather in East Hampton North 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 East Hampton North and find detailed weather information for every month.

September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 12°C (55°F) to a comfortable 26°C (79°F), with an average temperature of 20°C (69°F). The month experiences precipitation on about 10 days, totaling 99 mm (3.9 in), and humidity levels hover around 75%. In contrast, January is considerably colder, with temperatures dipping to a minimum of -13°C (8°F) and reaching a maximum of only 13°C (56°F), averaging just 2°C (37°F). While January sees slightly less precipitation at 89 mm (3.5 in) over 9 days, humidity is higher at 84%. For a detailed look at January's weather conditions, you can explore East Hampton North weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a comfortable maximum of 26°C (79°F) during the day, with an average of 20°C (69°F). The month sees about 99 mm (3.9 in) of rainfall over 10 days, accompanied by a humidity level of 75%. In contrast, February is significantly colder, with temperatures plummeting to a minimum of -12°C (11°F) and peaking at just 12°C (53°F), averaging around 3°C (37°F). Precipitation in February increases slightly to 123 mm (4.8 in) over 11 days, and humidity rises to 84%. For more detailed insights, you can check the East Hampton North weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a mild 12°C (55°F) to a warm 26°C (79°F), with an average of 20°C (69°F), making it a much more temperate month. Although there is some rainfall, with 99 mm (3.9 in) over about 10 days, humidity levels sit around 75%, offering a comfortable feel. In contrast, March sees much colder conditions, with temperatures ranging from a frigid -7°C (20°F) to a maximum of 15°C (59°F), averaging just 4°C (39°F). Additionally, March experiences slightly more precipitation at 113 mm (4.5 in), also spread over 10 days, and a higher humidity level of 82%. For more details on March weather, you can visit East Hampton North weather in March.

In September, the weather is generally warmer with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 26°C (79°F), creating a pleasant climate for outdoor activities. The month sees about 99 mm (3.9 in) of precipitation spread over 10 days, along with moderate humidity levels at 75%. In contrast, April is noticeably cooler, featuring average temperatures from a chilly minimum of 0°C (33°F) to an average maximum of 16°C (61°F). Precipitation is slightly higher at 137 mm (5.4 in) over 12 days, along with a humidity level of 79%, which often contributes to a damp atmosphere. For a detailed look at what to expect, you can check East Hampton North weather in April.

When comparing the weather in September and May, notable differences emerge in temperature and precipitation. September typically enjoys milder temperatures, with a minimum of 12°C (55°F) and an average reaching up to 20°C (69°F), while May starts cooler with a minimum of 4°C (39°F) and averages at just 12°C (54°F). In terms of rainfall, May tends to be wetter, receiving about 129 mm (5.1 in) of precipitation over 13 days, compared to September's 99 mm (3.9 in) spread over 10 days. Both months feature a humidity level of 75%, but the warmer September weather creates a more pleasant outdoor experience. For more details on May weather, visit East Hampton North weather in May.

When comparing the weather in September and June, September tends to be slightly warmer, with average temperatures reaching 20°C (69°F) and a maximum of 26°C (79°F), compared to June's average of 18°C (64°F) and maximum of 24°C (75°F). Additionally, September experiences more precipitation, with 99 mm (3.9 in) falling over about 10 days, while June has 72 mm (2.9 in) spread over just 8 days. Humidity levels are fairly similar, with September at 75% and June at 78%. For a detailed look at June conditions, you can visit East Hampton North weather in June.

When comparing the weather in September and July, we see some notable differences in temperature and conditions. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 26°C (79°F), with an average of 20°C (69°F). In contrast, July boasts warmer temperatures, starting at a minimum of 16°C (61°F) and peaking at 28°C (82°F), resulting in an average of 22°C (72°F). Both months experience the same amount of precipitation at 99 mm (3.9 in) over approximately 10 days, but September has slightly higher humidity levels at 75% compared to July's 76%. This showcases the gradual transition toward cooler weather as summer ends. For those looking for more detailed insights, check out East Hampton North weather in July.

In comparing the weather between September and August, September tends to be cooler, with minimum temperatures dropping to 12°C (55°F) compared to August's 17°C (63°F). The average temperature in September is also lower, at 20°C (69°F), while August boasts a higher average of 23°C (73°F). Although both months receive similar amounts of precipitation—99 mm (3.9 in) in September and 103 mm (4.0 in) in August—September experiences slightly more rainy days, with precipitation occurring on 10 days versus 9 days in August. Humidity levels remain comparable, with September at 75% and August at 76%. For more details on August weather, you can visit East Hampton North weather in August.

September and October present noticeable shifts in weather patterns. September boasts warmer temperatures with an average of 20°C (69°F) and a maximum of 26°C (79°F), while October sees a drop in the average temperature to 16°C (61°F) and a maximum of 24°C (75°F). Precipitation increases significantly in October, with 160 mm (6.3 in) falling over 14 days compared to September's 99 mm (3.9 in) over 10 days. Despite the change in temperature and increased rainfall, both months maintain a consistent humidity of 75%. For detailed weather information, you can check East Hampton North weather in October.

In comparing September and November weather, September typically offers milder temperatures, with an average of 20°C (69°F) and maximums reaching up to 26°C (79°F), making it a pleasant month for outdoor activities. In contrast, November sees significantly cooler conditions, with average temperatures dropping to around 10°C (50°F) and minimums plunging to -5°C (24°F). Additionally, November experiences a slightly higher level of precipitation at 113 mm (4.4 in), compared to September's 99 mm (3.9 in), despite both months having a similar number of rainy days (10). The humidity level also rises in November to 80% from September's 75%, contributing to a chillier atmosphere. For more detailed weather insights, check out East Hampton North weather in November.

September and December present stark contrasts in weather. In September, temperatures range from a mild 12°C (55°F) at night to a pleasant 26°C (79°F) during the day, with an average around 20°C (69°F). The month sees some precipitation, averaging 99 mm (3.9 in) over approximately 10 days, and humidity at a moderate 75%. In contrast, December ushers in much colder conditions, with temperatures dipping as low as -9°C (16°F) and averaging just 5°C (42°F). Precipitation increases to 147 mm (5.8 in) over about 12 days, accompanied by higher humidity levels at 80%. For a detailed look at December weather, visit East Hampton North weather in December.

Compare East Hampton North's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in East Hampton North

As September unfolds in East Hampton North, the weather begins to transition into a more moderate realm, distinguishing itself from the sweltering summer months. With pleasant average temperatures hovering around 20°C, residents and visitors can bask in the refreshing air while enjoying the lingering warmth of late summer. However, this month also brings a noticeable uptick in humidity and precipitation, as September experiences about ten rainy days, making it a time of vibrant foliage and lush surroundings. The blend of comfortable days and the onset of autumnal elements creates a unique charm, inviting everyone to embrace outdoor activities. For more insights on seasonal trends, visit East Hampton North Climate.