September Weather in New Shoreham, United States

Last updated: February 24, 2025

September in New Shoreham, United States, showcases a vibrant transition as summer relinquishes its hold, bringing delightful temperatures that peak at a maximum of 26°C (79°F) with an average around 20°C (68°F), while dipping to a refreshing 12°C (53°F) at night. While the month welcomes an average of 10 days of precipitation, totaling about 100 mm (4.0 in), the 75% humidity adds a touch of coastal richness to the air. This blend of mild warmth and occasional rain enhances the charm of New Shoreham, making September an ideal time to explore its natural beauty and coastal activities.

September Temperature in New Shoreham

In September, New Shoreham welcomes early autumn with mild temperatures and a hint of summer lingering in the air. The minimum temperature settles at 12°C (53°F), while the average rises to a pleasant 20°C (68°F), peaking at 26°C (79°F). This month marks a gradual transition from the warmth of August, where temperatures often reach the high 20s, to the cooler, crisper days of fall ahead. As daylight shortens and nature shifts, September encapsulates a beautiful balance, inviting residents and visitors alike to embrace the changing season with comfortable weather perfect for outdoor activities.

September Weather in New Shoreham: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Shoreham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec363739465463717267604941
Data source: Temperature data for New Shoreham 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 New Shoreham

In September, New Shoreham experiences a precipitation total of 100 mm (4.0 in) spread over 10 days, marking a slight increase compared to the preceding summer months. This uptick signals the onset of autumn as rain patterns shift, with September's rainfall often serving as a precursor to the wetter autumn months. Notably, while the summer months of June and August register around 85 mm to 93 mm, September brings a moderate boost, foreshadowing the more substantial precipitation of October at 158 mm (6.2 in). This gradual increase highlights the transition from the relatively dry months of summer into a more temperate and occasionally rainy fall season, shaping the vibrant landscape of New Shoreham as it prepares for the seasonal changes ahead.

September Precipitation Trends in New Shoreham

The chart displays monthly precipitation patterns in New Shoreham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89110113129120859493100158108133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Shoreham

As September rolls into New Shoreham, the humidity begins to show signs of a subtle decline, settling at 75%—a slight drop from the summer months. Throughout the year, humidity levels generally exhibit a gradual decrease from the 84% peak in January and February to the mild 75% experienced in both May and October. This trend reflects a transition from the higher moisture typical of the colder months toward a more temperate climate as autumn approaches. Interestingly, while September aligns with the dryer late summer, the humidity remains comfortably moderate, paving the way for the crisp air of fall. The fluctuation in humidity showcases New Shoreham's unique climate, blending seasonal changes with coastal charm.

September Average Humidity in New Shoreham

This chart illustrates the average monthly humidity levels in New Shoreham, 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 New Shoreham

As September arrives in New Shoreham, the UV Index remains at a very high level of 8, indicative of the lingering summer sun. This month continues the trend of elevated UV exposure seen throughout the summer, with a consistent burn time of just 15 minutes for those susceptible to sunburn. Following the peaks of June and July, September's UV Index indicates that while summer is fading, caution is still necessary when enjoying outdoor activities. The gradual transition to autumn will soon bring down the UV levels, as seen in the upcoming months with October dropping to a 6. Stay informed and protect your skin by checking the latest updates at New Shoreham UV Index.

Maximum UV Index Levels in New Shoreham for September

The chart shows the monthly maximum UV Index (UVI) for New Shoreham 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.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998642
Data source: New Shoreham 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 New Shoreham

As summer gracefully transitions into autumn, September in New Shoreham continues to bask in a generous 281 hours of sunshine. This month is a warm encore following the sun-drenched days of July and August, which boasted peak hours of 351 and 330 respectively. The gradual decrease in sunlight hours from the vibrant 296 hours in May reflects the seasonal shift, yet the daylight remains ample enough to enjoy the lingering warmth of late summer. Compared to the brighter summer months, September still offers a delightful glow, making it an ideal time to explore the beauty of New Shoreham before the crispness of October sets in with its 233 hours. The consistent decline in sunshine hours as the year progresses paints a clear picture of New Shoreham's seasonal rhythms, inviting visitors to embrace the gradual change.

Monthly Sunshine Duration in New Shoreham: September Highlighted

The September sunshine duration represents the total number of hours New Shoreham 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h187h262h252h296h324h351h330h281h233h206h173h
Data source: New Shoreham September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in New Shoreham During September

September in New Shoreham ushers in a notable shift in sunny weather, boasting a 49% chance of sunshine. This marks an encouraging increase compared to the summer months, where the likelihood dipped to ranges as low as 35% in August. As summer gives way to fall, September offers a balanced blend of warmth and clearer skies, positioning it as one of the more favorable months for outdoor activities. Notably, the chances of sun not only rise above the preceding months but are also comparable to the transitional weather seen in October. With an average of around 46%, autumn undeniably begins to reclaim its canvas while still granting sunny days for those looking to enjoy the changing seasons.

Percentage of Sunny Days in September in New Shoreham

The chart illustrates the percentage of sunny days in New Shoreham 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 New Shoreham experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%30%61%48%43%39%42%35%49%46%53%32%
Data source: New Shoreham September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in New Shoreham in September

As summer gracefully transitions into autumn, September in New Shoreham brings a gentle shift in daylight hours, offering about 12 hours of sunlight each day. This decrease follows the peak of 15 hours in June, reflecting the natural ebb of daylight as the year progresses. While August still holds onto 13 hours of daylight, September marks the beginning of a steady retreat towards winter, where daylight dwindles to 11 hours in October and further down to 9 hours by December. This gradual decline not only signals the changing seasons but also invites a cozy atmosphere, perfect for embracing the harvest and the outdoors before the shorter days fully settle in.

Average Daylight Hours in New Shoreham for September

The chart illustrates the variation in daylight duration in New Shoreham throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 34m10h 37m11h 58m13h 20m14h 30m15h 4m14h 45m13h 44m12h 24m11h 3m9h 51m9h 14m
Data source: New Shoreham daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in New Shoreham

In September, New Shoreham experiences a pleasant uptick in wind speed, averaging 5.5 m/s (12 mph). This marks a notable recovery from the calmer months of July and August, where winds dipped to their annual lows of 4.6 m/s and 4.5 m/s, respectively. As summer transitions into fall, the winds begin to strengthen once again, setting the stage for the brisker breezes of October and November, which return to an average of around 6.2 to 6.3 m/s. Overall, September serves as a refreshing reminder of the wind's ability to shift with the changing seasons, inviting residents and visitors alike to enjoy the invigorating coastal air.

Average September Wind Speed in New Shoreham

The chart displays monthly wind speed patterns in New Shoreham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.86.76.45.95.85.54.64.55.5 m/s6.26.36.3
Data source: New Shoreham September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in New Shoreham Compares to Other Months

The weather in New Shoreham 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 New Shoreham and find detailed weather information for every month.

September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 12°C (53°F) at night to a comfortable average of 20°C (68°F) during the day, peaking at 26°C (79°F). The month is relatively humid at 75%, with 100 mm (4.0 in) of precipitation spread over about 10 days. In contrast, January experiences much colder weather, with minimum temperatures plunging to -15°C (5°F) and an average of just 2°C (36°F), reaching a high of 14°C (57°F). The humidity in January climbs to 84%, and while precipitation is slightly lower at 89 mm (3.5 in), it occurs over 9 days. For a closer look at January weather specifics, visit New Shoreham weather in January.

When comparing the weather of September and February, it's evident that these months offer contrasting climatic experiences. September sees milder temperatures, with averages around 20°C (68°F) and highs reaching 26°C (79°F), while February is characterized by a much colder climate, with average temperatures plummeting to just 3°C (37°F) and maximums of 12°C (54°F). Precipitation levels are similarly high in both months, with September recording 100 mm (4.0 in) over 10 days and February slightly wetter at 110 mm (4.3 in) over 12 days. Additionally, February experiences a higher humidity level at 84%, compared to September's 75%. For more specific insights about February weather, you can visit New Shoreham weather in February.

In comparing the weather conditions between September and March, a striking contrast is evident. September enjoys milder temperatures, with an average of 20°C (68°F) and maximums reaching 26°C (79°F), while March is significantly cooler, with average temperatures sitting at just 4°C (39°F) and maximums of 14°C (58°F). Rainfall is relatively comparable, with September experiencing 100 mm (4.0 in) of precipitation and March slightly higher at 113 mm (4.4 in), both spread across about 10 days. Additionally, humidity levels are higher in March at 82%, compared to September's 75%, which can make March feel even chillier. For a deeper look into March weather specifics, visit New Shoreham weather in March.

When comparing the weather in September and April, September tends to be much milder, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F). In contrast, April's temperatures are significantly cooler, averaging between 0°C (33°F) and 16°C (62°F). Both months experience notable precipitation, with April receiving approximately 129 mm (5.1 in) over 11 days, slightly more than September's 100 mm (4.0 in) over 10 days. Additionally, humidity levels are relatively high in both months, with April at 79% and September at 75%. For a deeper look into April's specific conditions, you can check out New Shoreham weather in April.

September and May present distinct weather patterns, with September enjoying warmer temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), while May's temperatures are cooler, starting at 4°C (39°F) and peaking at 21°C (70°F). Both months experience significant precipitation, with September receiving about 100 mm (4.0 in) over 10 days and May facing slightly heavier rainfall at 120 mm (4.7 in) over 13 days. Interestingly, both months maintain a consistent humidity level of 75%, making the air feel equally moist. For a closer look at May's climate, you can check out New Shoreham weather in May.

When comparing the weather in September and June, September tends to be slightly warmer, with average temperatures reaching 20°C (68°F) compared to June's 17°C (64°F). The maximum temperature in September can reach up to 26°C (79°F), while June peaks at 24°C (75°F). Both months experience similar precipitation patterns, with September averaging 100 mm (4.0 in) and June a bit lower at 85 mm (3.3 in), both spread across roughly ten rainy days. Humidity levels are quite comparable as well, with September at 75% and June slightly higher at 78%. For a closer look at June's weather, check out New Shoreham weather in June.

Comparing the weather in September and July reveals some interesting differences. September tends to have slightly cooler temperatures, with an average of 20°C (68°F), compared to July's warmer average of 22°C (72°F). While both months experience similar amounts of precipitation—100 mm (4.0 in) in September and 94 mm (3.7 in) in July—the humidity levels are quite comparable at around 75% for September and 76% for July. Overall, September provides a more temperate climate, making it a gentle transition into fall. For a closer look at July conditions, check out New Shoreham weather in July.

When comparing the weather in September and August, September tends to be slightly cooler with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), while August is warmer, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 27°C (81°F). Precipitation is slightly higher in September, with 100 mm (4.0 in) over 10 days compared to August's 93 mm (3.7 in) over 9 days. Humidity levels remain quite similar, with September at 75% and August at 76%, creating a slightly more humid feel in August. For a detailed look at August weather specifics, you can visit New Shoreham weather in August.

September and October present contrasting weather patterns as autumn settles in. In September, temperatures range from a comfortable 12°C (53°F) at night to a warm 26°C (79°F) during the day, with an average of 20°C (68°F). While September sees some rain—totaling 100 mm (4.0 in) over 10 days—humidity remains high at 75%. In October, however, the temperatures dip significantly, with nighttime lows of 4°C (39°F) and an average of 16°C (60°F), peaking at 23°C (74°F). October is also wetter, with 158 mm (6.2 in) of precipitation over 12 days, maintaining the same level of humidity at 75%. For more insights into October weather specifics, visit New Shoreham weather in October.

September typically features milder weather in comparison to November, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), contributing to an average of 20°C (68°F). The month sees approximately 100 mm (4.0 in) of rain over about 10 days, along with a humidity level of 75%. In contrast, November experiences significantly cooler temperatures, with a minimum of -6°C (22°F), an average of 10°C (49°F), and a maximum of 20°C (68°F). While precipitation increases slightly to 108 mm (4.3 in) over the same number of rainy days, humidity rises to 80%. For those interested in the specifics of November weather, more details can be found at New Shoreham weather in November.

In comparing the weather between September and December, a stark contrast is evident. September is characterized by milder temperatures, with averages around 20°C (68°F) and maximums reaching up to 26°C (79°F), alongside a relatively pleasant humidity of 75%. However, this month does see a fair amount of rainfall, with around 100 mm (4.0 in) of precipitation spread over 10 days. In contrast, December brings a significant drop in temperature, with averages plummeting to 5°C (41°F) and lows dipping as low as -11°C (13°F). Precipitation slightly increases to 133 mm (5.2 in) over 11 days, coupled with higher humidity levels at 80%. For more details on what to expect during this chilly month, check out New Shoreham weather in December.

Compare New Shoreham's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in New Shoreham

As summer transitions to fall, September in New Shoreham brings a delightful shift in weather. With an average temperature hovering around a comfortable 20°C (68°F), the days are warm but not sweltering, and the nights offer a refreshing chill. This month sees increased humidity, which can add a touch of stickiness to the air, but it also signals the onset of fall foliage. Rainfall is moderate, with about ten rainy days contributing to the lush landscapes of the season. For those looking to explore the unique climate characteristics throughout the year, visit New Shoreham Climate.