October Weather in Shelter Island, United States

Last updated: February 24, 2025

Experience the shifting climate of Shelter Island, United States, in October, where temperatures fluctuate between a maximum of 24°C (75°F) and a minimum of 5°C (42°F), averaging around 16°C (61°F). This month brings 160 mm (6.3 in) of rainfall over 14 days, contributing to the island's lush landscapes. With humidity levels at 75%, October presents a vibrant yet crisp ambiance, ideal for enjoying the rich natural beauty and diverse outdoor activities this charming destination has to offer.

October Temperature in Shelter Island

In October, Shelter Island experiences a delightful transition as temperatures begin to cool from the warm summer months. With a minimum of 5°C (42°F), the island shows a noticeable drop, yet it enjoys an average of 16°C (61°F), providing a crisp but pleasant atmosphere ideal for autumn activities. The maximum temperature at 24°C (75°F) still offers opportunities for outdoor exploration, making it a perfect time to appreciate the vibrant fall foliage. As the month progresses, days slowly yield to cooler nights, hinting at the winter chill to come, but for now, October remains a charming blend of warmth and the burgeoning beauty of the season.

October Weather in Shelter Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Shelter Island, 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 Shelter Island 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.

October Precipitation in Shelter Island

October in Shelter Island brings a notable shift in weather patterns, marked by a significant increase in precipitation. With 160 mm (6.3 in) of rain falling over 14 days, October stands out as the wettest month of the year, surpassing all others. This uptick in rainfall is particularly striking compared to the more moderate totals recorded in the summer months, where June and July averaged around 72 mm (2.9 in) and 99 mm (3.9 in), respectively. As temperatures begin to cool, the combined effect of increased precipitation and the transition to fall creates a rich tapestry of colors in the landscape, while serving as a reminder of the region's dynamic climate.

October Precipitation Trends in Shelter Island

The chart displays monthly precipitation patterns in Shelter Island, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec89123113137129729910399161113147
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Shelter Island

As October rolls around in Shelter Island, the humidity settles at a comfortable 75%, marking one of the drier months of the year. This slight decrease is part of a downward trend that begins in the spring, with humidity levels transitioning from a humid 84% in January and February to a more moderate 75% by September. The drop continues into October, aligning with the onset of fall, which brings crisp air and a refreshing change. Interestingly, October's humidity figures are on par with the preceding summer months, showcasing a consistent and pleasant experience for residents and visitors alike. As autumn deepens, the return to higher humidity levels in November, rising to 80%, highlights the season's variability and prepares everyone for the winter months ahead.

October Average Humidity in Shelter Island

This chart illustrates the average monthly humidity levels in Shelter Island, with October's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how October's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Shelter Island

In October, Shelter Island experiences a UV Index of 6, categorizing it as high and indicating a burn time of approximately 25 minutes. This marks a noticeable decrease from the peak summer months, where indices soared to 10, reflecting extremely high exposure levels. As autumn sets in, residents and visitors can enjoy the milder sun, yet it's essential to remain vigilant with sun safety, as October’s UV levels still pose risks, particularly during midday hours. Transitioning from the summer's intense rays, this month serves as a reminder to be mindful of sun protection. For more insights on UV levels throughout the year, visit Shelter Island UV Index.

Maximum UV Index Levels in Shelter Island for October

The chart shows the monthly maximum UV Index (UVI) for Shelter Island in October, 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: Shelter Island October 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.

October Sunshine in Shelter Island

October in Shelter Island brings a beautiful transition as the summer sun gradually retreats. With 229 hours of sunshine, the month showcases a noticeable decrease from the sun-drenched July peak of 349 hours. However, October still offers a warm embrace compared to the earlier months of the year, highlighting a vibrant shift in the season. As nature prepares for the colder months, the golden hues of autumn bathe the island in a picturesque light, creating a perfect backdrop for leisurely strolls and outdoor activities before winter sets in. While daylight hours diminish, the soft warmth of the October sun ensures that the charm of Shelter Island remains radiant and inviting.

Monthly Sunshine Duration in Shelter Island: October Highlighted

The October sunshine duration represents the total number of hours Shelter Island experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec153h185h261h250h291h321h349h327h281h229h208h177h
Data source: Shelter Island October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shelter Island During October

October in Shelter Island presents a slightly above-average chance of sunny weather at 46%, falling in line with the region's characteristic variability. After a summer marked by lower probabilities of sunshine, October's outlook is a refreshing return to sunnier prospects, closely paralleling the conditions seen in both April and May. Interestingly, as the year transitions into its cooler months, the likelihood of sun tends to stabilize, with November even nudging up to 53%. This trend suggests that while the days might be getting shorter, October still holds the promise of pleasant golden rays breaking through the autumn clouds, making it a delightful time to be outdoors.

Percentage of Sunny Days in October in Shelter Island

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

Daylight Hours in Shelter Island in October

As October arrives in Shelter Island, the anticipation of shorter days sets in, with daylight lasting around 11 hours. This marks a gradual decline from the sun-kissed 15 hours of daylight enjoyed in June. The trend from the peak of summer shows a consistent decrease throughout the months, peaking in May before tapering off. The shift from lengthy summer evenings to the more condensed daylight of autumn is emblematic of the changing seasons, inviting residents to embrace cozy indoor activities as the days continue to shorten leading into November. This rhythmic ebb and flow of sunlight not only showcases the charm of Shelter Island's seasons but also creates a canvas for picturesque sunsets that mark the day's end.

Average Daylight Hours in Shelter Island for October

The chart illustrates the variation in daylight duration in Shelter Island throughout the year, with October 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: Shelter Island daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Shelter Island

As October unfolds in Shelter Island, the wind dances at an average speed of 6.7 m/s (15 mph), showcasing a noticeable uptick from the summer's calm breezes. This shift reflects a return to the crisper gusts reminiscent of earlier months, with October's winds outpacing those of July and August, which languished at around 4.8 to 4.9 m/s (11 mph). As the season transitions, these autumnal winds carry the promise of change, enhancing the island's charm and inviting locals and visitors alike to embrace the brisk outdoor air. Though the speeds slightly diminish into November, fluctuating just above October's rate, the overall trend hints at a gradual renewal of energy as the landscape prepares for winter's approach.

Average October Wind Speed in Shelter Island

The chart displays monthly wind speed patterns in Shelter Island, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.37.36.96.26.05.64.84.96.16.7 m/s6.86.6
Data source: Shelter Island October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Shelter Island Compares to Other Months

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

October and January present contrasting weather patterns, showcasing the transition from autumn to deep winter. In October, temperatures typically range from a minimum of 5°C (42°F) to a maximum of 24°C (75°F), with an average of 16°C (61°F). The month also experiences significant precipitation, averaging 160 mm (6.3 inches) spread over 14 days, and a humidity level of 75%. Conversely, January brings much colder conditions, with temperatures plummeting to a minimum of -13°C (8°F) and only reaching a maximum of 13°C (56°F), resulting in an average of just 2°C (37°F). Though January experiences less precipitation at 89 mm (3.5 inches) over 9 days, the humidity remains higher at 84%. For a more detailed look at the weather during this cold month, you can visit Shelter Island weather in January.

October and February present dramatically different weather patterns. In October, temperatures range from a mild 5°C (42°F) at night to a warm 24°C (75°F) during the day, averaging around 16°C (61°F). The month is characterized by considerable rainfall, with about 160 mm (6.3 in) falling over 14 days, and humidity levels sitting at a comfortable 75%. In contrast, February is much colder, with temperatures plummeting to a minimum of -12°C (11°F) and only reaching a maximum of 12°C (53°F), averaging around 3°C (37°F). Precipitation in February is lower at 123 mm (4.8 in) over 11 days, but humidity levels rise to 84%, contributing to a chillier atmosphere. For more detailed weather information about February, you can visit Shelter Island weather in February.

When comparing the weather in October and March, notable differences emerge in temperature and precipitation. October generally enjoys milder temperatures, ranging from a minimum of 5°C (42°F) to a maximum of 24°C (75°F), with an average of 16°C (61°F). In contrast, March experiences colder conditions, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 15°C (59°F) and an average of only 4°C (39°F). While October sees higher precipitation levels of 160 mm (6.3 in) over approximately 14 days, March has less rainfall overall, totaling 113 mm (4.5 in) across around 10 days, although humidity is slightly higher at 82%. For a closer look at the specific weather patterns in March, you can check out Shelter Island weather in March.

When comparing the weather in October and April, we observe distinct differences in temperature and humidity. October boasts a milder climate with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 24°C (75°F), whereas April’s temperatures are cooler, with a minimum of 0°C (33°F) and a maximum of 16°C (61°F). Both months experience a significant amount of precipitation, with October receiving 160 mm (6.3 in) over 14 days compared to April's 137 mm (5.4 in) over 12 days. Interestingly, April has a slightly higher humidity level at 79%, compared to October's 75%. For a closer look at conditions specific to April, you can check Shelter Island weather in April.

When comparing the weather in October and May, both months exhibit relatively mild temperatures, but October tends to be warmer overall. In October, the average temperature reaches 16°C (61°F), with a maximum of 24°C (75°F), while May has an average of 12°C (54°F) and tops out at 20°C (69°F). Precipitation is slightly higher in October, totaling 160 mm (6.3 in) over approximately 14 days compared to May's 129 mm (5.1 in) over 13 days. Interestingly, humidity remains constant at 75% in both months, creating a similar feel in terms of moisture levels; however, October typically brings more rain. For a detailed look at weather specifics, check out Shelter Island weather in May.

When comparing the weather in October and June, we see notable differences in temperature and precipitation. October features a broader temperature range, with minimums dipping to 5°C (42°F) and maximums peaking at 24°C (75°F), while June enjoys milder minimums of 11°C (52°F), maintaining the same maximum of 24°C (75°F). October experiences significantly higher precipitation, totaling 160 mm (6.3 in) over 14 days, compared to June's 72 mm (2.9 in) spread over only 8 days. Additionally, October's humidity sits at 75%, slightly lower than June's 78%. For a closer look, you can refer to Shelter Island weather in June.

When comparing the weather in October and July, October presents a cooler climate with minimum temperatures dropping to around 5°C (42°F) and average highs reaching 24°C (75°F). In contrast, July boasts warmer temperatures, with a minimum of 16°C (61°F) and maximums peaking at 28°C (82°F). Precipitation is also higher in October, with 160 mm (6.3 in) expected over about 14 days, compared to July's 99 mm (3.9 in) over 10 days, making October significantly wetter. Notably, humidity levels remain similar between the two months, with October at 75% and July slightly higher at 76%. For a more detailed exploration of July weather, visit Shelter Island weather in July.

When comparing the weather in October to that of August, notable differences emerge. October is significantly cooler, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 24°C (75°F), while August temperatures are much warmer, with averages between 17°C (63°F) and 27°C (80°F). Additionally, October experiences more precipitation, with 160 mm (6.3 in) over 14 days, compared to 103 mm (4.0 in) spread over just 9 days in August. Both months have similar humidity levels, with October at 75% and August slightly higher at 76%. For more details on August weather, visit Shelter Island weather in August.

In comparing the weather patterns of September and October, it's evident that October experiences cooler temperatures, with a minimum of 5°C (42°F) compared to September's minimum of 12°C (55°F). The average temperature in October is 16°C (61°F), slightly lower than September's average of 20°C (69°F), while maximum temperatures reach 24°C (75°F) in October, just 2°C shy of September’s 26°C (79°F). Additionally, October is wetter, with 160 mm (6.3 in) of precipitation over 14 days, contrasting with September's 99 mm (3.9 in) over 10 days. Both months share a consistent humidity level of 75%. For more detailed information on September weather, you can visit Shelter Island weather in September.

October typically experiences milder temperatures, with averages around 16°C (61°F) and highs reaching up to 24°C (75°F). The month is characterized by relatively high humidity at 75% and considerable precipitation, totaling 160 mm (6.3 in) over about 14 days. In contrast, November brings a more pronounced chill, with average temperatures dropping to 10°C (50°F) and maximums capped at 19°C (67°F). The humidity increases slightly to 80%, yet total precipitation decreases to 113 mm (4.4 in) over just 10 days. For more detailed insights, check out Shelter Island weather in November.

October and December exhibit contrasting weather patterns. In October, temperatures range from a mild 5°C (42°F) at night to a warm 24°C (75°F) during the day, with an average of 16°C (61°F). The month experiences significant rainfall, totaling 160 mm (6.3 inches) over 14 days, accompanied by moderate humidity at 75%. In stark contrast, December sees much cooler temperatures, with nighttime lows plummeting to -9°C (16°F) and daytime highs reaching only 16°C (61°F). The total precipitation is slightly lower at 147 mm (5.8 inches), spread over 12 days, and humidity rises to 80%. For more details, you can refer to Shelter Island weather in December.

Compare Shelter Island's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Shelter Island

As fall settles in, October on Shelter Island brings a notable shift in weather compared to the warmer summer months. With an average temperature of 16°C (61°F), it feels refreshingly crisp, especially as the days begin to cool down, dipping to as low as 5°C (42°F) at night. This month also ushers in increased precipitation, adding a sense of cozy charm as the island transforms into a tapestry of autumn colors. Unlike the dry summer, October sees about 14 days of rain, creating a moister atmosphere with humidity levels around 75%. For those wanting to learn more about the intricate nuances of Shelter Island's climate, visit Shelter Island Climate.