January Weather in Amagansett, United States

Last updated: February 24, 2025

In January, Amagansett experiences a chilly winter climate characterized by maximum temperatures reaching 13°C (56°F) and an average of 2°C (37°F), while the minimum dips down to a brisk -13°C (8°F). This month is also marked by significant precipitation, totaling 89 mm (3.5 in) across 9 days, adding to the winter's atmospheric charm. With humidity levels hovering around 84%, residents and visitors alike can expect an evocative blend of crisp air and intermittent rainfall, creating a serene yet dynamic winter landscape.

January Temperature in Amagansett

In January, Amagansett experiences a chill that sets the tone for the winter season. With temperatures ranging from a brisk -13°C (8°F) at night to a mild 13°C (56°F) during the day, the average temperature hovers around 2°C (37°F), hinting at the potential for both icy mornings and pleasantly sunny afternoons. The pattern of fluctuating temperatures continues into February, with slightly warmer averages, indicating a slow transition towards spring. Notably, the deep winter chill of January contrasts sharply with the milder climb in temperatures that starts in March and stretches into April, highlighting the region's delightful shift from cold to increasingly temperate weather. This gradual warming trend paves the way for the vibrant spring months to follow, making January both a showcase of winter's grip and a precursor to the awakening of nature.

January Weather in Amagansett: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Amagansett, 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 Amagansett 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.

January Precipitation in Amagansett

In January, Amagansett experiences about 89 mm (3.5 inches) of precipitation over roughly 9 days, marking the start of the year with a refreshing but relatively mild wetness. This sets the stage for a trend of increasing precipitation throughout the winter and spring months, with February rising to 123 mm (4.8 inches) across 11 days. As the seasons transition, the rainfall peaks notably in April, reaching 137 mm (5.4 inches), while May follows closely with 129 mm (5.1 inches). The overall pattern reflects a gradual buildup of moisture during the early part of the year, which not only nourishes the landscape but also paves the way for the lush growth that defines the warmer months. Interestingly, June sees a dip to 72 mm (2.9 inches), hinting at the shifts that summer brings, showcasing the dynamic nature of Amagansett's climate.

January Precipitation Trends in Amagansett

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

In January, Amagansett experiences a consistent humidity level of 84%, aligning with the following month, February, which retains the same moisture profile. As winter transitions to spring, the humidity gradually decreases, dipping to 82% in March and further to 79% in April, suggesting a subtle shift as temperatures begin to rise. The trend continues into May, where humidity reaches 75%, indicating a more comfortable atmosphere. As summer approaches, levels bounce back slightly, hovering around 76% in both July and August, before resuming their decline to 75% come September. This slight dip maintains into October, with a steady 75%, followed by a rise towards the year's end, where November and December see humidity levels climb back to 80%. Overall, January’s humidity is an indicative start to a pattern of gradual fluctuations, reflecting the seasonal changes characteristic of this coastal region.

January Average Humidity in Amagansett

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

January UV Index in Amagansett

In January, Amagansett experiences a moderate UV Index of 3, indicating a relatively low risk of harm from unprotected sun exposure, with a burn time of 30 minutes. As the months progress, UV levels gradually rise, peaking at 10 in both June and July during the height of summer, when the potential for sunburn drops to just 15 minutes. A notable trend is the increase in UV Index values from February onward, reaching its highest levels in spring and early summer. By September, the UV Index begins to taper off, returning to more moderate levels by November and falling to a low 2 in December, where one can safely enjoy up to 45 minutes in the sun. This progression highlights the importance of adapting sun protection strategies throughout the year. For more detailed insights, check the Amagansett UV Index.

Maximum UV Index Levels in Amagansett for January

The chart shows the monthly maximum UV Index (UVI) for Amagansett in January, 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: Amagansett January 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.

January Sunshine in Amagansett

In Amagansett, January sets the stage for the year with a modest 153 hours of sunshine, inviting a refreshing, crisp atmosphere that marks the true essence of winter. As the seasons transition, February experiences a mild boost to 185 hours, hinting at the March metamorphosis that ignites with 261 hours of radiant daylight. The pattern of increasing sunshine continues into the spring, peaking in June at an impressive 321 hours, showcasing the area's vibrant summer energy. July breaks records with 349 hours, yet slightly recedes in August to 327 hours, as autumn begins its gentle approach. The gradual decline in sunshine from September down to 177 hours in December reinforces the cyclical nature of Amagansett’s climate, reminding residents and visitors alike of the seasonal charms that each month brings.

Monthly Sunshine Duration in Amagansett: January Highlighted

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

Chance of Sun in Amagansett During January

In Amagansett, the likelihood of enjoying sunny weather in January stands at a robust 49%, making it one of the more promising winter months for sunshine. While February sees a dip to 31%, the trend shifts positively as the season transitions, with March boasting a commendable 59% chance of sunny days. This pattern suggests a gradual increase in sunshine as winter gives way to spring, with April and May returning to the 49% and 45% brackets, respectively. Interestingly, as summer approaches, the chances fluctuate a bit, hovering around the 40% to 45% mark through the hotter months, before seeing another shift in the fall, where September brings back a 49% chance. Overall, January’s sunny potential is a bright spot in the winter landscape, hinting at the sun-kissed days that lie ahead.

Percentage of Sunny Days in January in Amagansett

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

Daylight Hours in Amagansett in January

In January, Amagansett enjoys 9 hours of daylight, marking the beginning of a gradual increase that ushers in the lengthening days of early spring. By February, daylight extends to 10 hours, and as winter wanes, daylight reaches 11 hours in March. The trend continues, with a noticeable jump to 13 hours in April and peaking at 15 hours in June, allowing residents to savor the bright summer days. As July rolls in, daylight slightly recedes to 14 hours, followed by a gentle decline through August and September. By October, daylight decreases to 11 hours, and as the year draws to a close, both November and December revert to 9 hours. This cyclical rhythm of daylight not only shapes daily life but also enhances the seasonal charm of Amagansett.

Average Daylight Hours in Amagansett for January

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

January Winds in Amagansett

January in Amagansett is characterized by a steady average wind speed of 7.3 m/s (16 mph), mirroring that of February, signaling the winter's enduring grip on the region. As the seasons shift, there's a noticeable decline in wind intensity through the spring months, with March seeing a slight drop to 6.9 m/s and continuing to decrease as we approach summer. By July and August, the winds calm significantly, settling to a gentle 4.8 m/s (11 mph) in July, providing a tranquil contrast to the brisk start of the year. However, as autumn rolls in, the winds gain momentum once again, with a gradual rise back to 6.7 m/s (15 mph) by October. This rhythmic pattern highlights the dynamic nature of Amagansett's winds, painting a vivid picture of the transition from winter's chill to summer's respite and back again.

Average January Wind Speed in Amagansett

The chart displays monthly wind speed patterns in Amagansett, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.3 m/s7.36.96.26.05.64.84.96.16.76.86.6
Data source: Amagansett January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Amagansett Compares to Other Months

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

In January, the weather shows a notable chill, with average temperatures hovering around 2°C (37°F), and extremes ranging from a chilly -13°C (8°F) to a milder 13°C (56°F). This month experiences a total precipitation of 89 mm over 9 days, maintaining a high humidity level of 84%. In contrast, February brings slightly warmer temperatures, with an average of 3°C (37°F) and a minimum of -12°C (11°F), though the maximum dips a bit to 12°C (53°F). Precipitation increases to 123 mm, occurring over 11 days, while humidity remains constant at 84%. For more details on how February weather specifically unfolds, you can check out Amagansett weather in February.

In comparing January and March weather, January is typically colder, with average temperatures hovering around 2°C (37°F) compared to March's slightly milder average of 4°C (39°F). January experiences lower maximum temperatures, peaking at 13°C (56°F), whereas March can reach up to 15°C (59°F). Precipitation is more significant in March, with 113 mm (4.5 in) reported over 10 days, compared to January's 89 mm (3.5 in) over 9 days. Additionally, humidity levels are slightly lower in March at 82%, compared to January's 84%. For a closer look at March weather in Amagansett, you can visit Amagansett weather in March.

In January, temperatures in Amagansett can drop as low as -13°C (8°F), with an average temperature of 2°C (37°F) and a maximum of 13°C (56°F). The month sees significant precipitation, totaling 89 mm (3.5 in) over about 9 days, coupled with high humidity at 84%. In contrast, April brings milder weather with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 16°C (61°F) and an average of 8°C (47°F). Precipitation increases to 137 mm (5.4 in) across 12 days, but humidity slightly decreases to 79%. For a more detailed look at April's weather, check out Amagansett weather in April.

January and May exhibit strikingly different weather patterns. In January, temperatures can plunge to a frigid minimum of -13°C (8°F), with an average temperature of 2°C (37°F) and a maximum reaching only 13°C (56°F). The month sees significant precipitation, totaling 89 mm (3.5 in) over about 9 days, with high humidity levels averaging 84%. In contrast, May brings much milder conditions, with a minimum temperature of 4°C (39°F), an average of 12°C (54°F), and pleasant highs of up to 20°C (69°F). However, May experiences slightly more precipitation, amounting to 129 mm (5.1 in) spread over 13 days, but with lower humidity at 75%. For a closer look at the weather in May, check out Amagansett weather in May.

The weather in January is significantly colder compared to June, with temperatures ranging from a minimum of -13°C (8°F) to a maximum of 13°C (56°F), and an average temperature of just 2°C (37°F). In contrast, June enjoys much milder temperatures, with a minimum of 11°C (52°F), an average of 18°C (64°F), and a maximum reaching 24°C (75°F). January experiences higher humidity at 84% and nearly 90 mm (3.5 in) of precipitation across 9 days, while June sees lower humidity levels at 78% and slightly less precipitation at 72 mm (2.9 in) over 8 days. For a closer look at the weather specifics in June, you can check Amagansett weather in June.

When comparing the weather in January and July, the differences are striking. January experiences much colder temperatures, with minimums dipping to -13°C (8°F) and an average of only 2°C (37°F). In contrast, July boasts a much warmer climate, with minimum temperatures of 16°C (61°F) and an average of 22°C (72°F), peaking at 28°C (82°F). Precipitation levels are relatively similar, with January receiving 89 mm (3.5 in) over 9 days and July slightly wetter at 99 mm (3.9 in) over 10 days. Humidity also varies, being higher in January at 84% compared to July's 76%. For a closer look at July weather, check out Amagansett weather in July.

January and August showcase strikingly different weather patterns. In January, temperatures range from a chilling minimum of -13°C (8°F) to a maximum of 13°C (56°F), with an average temperature of 2°C (37°F). The month experiences significant precipitation of 89 mm (3.5 in) over approximately 9 days, accompanied by high humidity levels of 84%. In contrast, August brings much warmer conditions, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 27°C (80°F), and an average temperature of 23°C (73°F). August also sees slightly higher precipitation totaling 103 mm (4.0 in) over the same number of days, but the humidity is lower at 76%. For those interested in a detailed look at summer weather, check out Amagansett weather in August.

In January, the weather is characterized by much colder temperatures, with a minimum of -13°C (8°F) and an average of just 2°C (37°F), compared to a much milder September, where temperatures range from a minimum of 12°C (55°F) to an average of 20°C (69°F). While January experiences around 89 mm (3.5 in) of precipitation over 9 days, September is slightly wetter, receiving 99 mm (3.9 in) of rain across 10 days. Additionally, January is marked by high humidity at 84%, whereas September sees lower humidity levels at 75%. For more information about the specific weather conditions in September, you can visit Amagansett weather in September.

January and October exhibit stark contrasts in weather. In January, temperatures range from a biting minimum of -13°C (8°F) to a mild maximum of 13°C (56°F), with an average temperature of only 2°C (37°F). This cold month also experiences significant precipitation, totaling 89 mm (3.5 in) over about 9 days, combined with high humidity at 84%. In contrast, October offers a much warmer climate, with temperatures spanning from a minimum of 5°C (42°F) to a pleasant maximum of 24°C (75°F) and an average of 16°C (61°F). Precipitation increases to 160 mm (6.3 in) across 14 days, while humidity drops to 75%. For more detailed information, you can visit Amagansett weather in October.

When comparing the weather in January and November, November typically presents milder conditions. In January, temperatures can drop as low as -13°C (8°F) and average around 2°C (37°F), while November's temperatures are more moderate, with a minimum of -5°C (24°F) and an average of 10°C (50°F). November also enjoys higher maximum temperatures, reaching up to 19°C (67°F) compared to January's peak of 13°C (56°F). Additionally, while both months experience significant precipitation, November has slightly higher levels, with 113 mm (4.4 in) over 10 days, versus January's 89 mm (3.5 in) over 9 days. The humidity levels are somewhat similar, with January being slightly more humid at 84% compared to November's 80%. For a detailed look at this month, you can check Amagansett weather in November.

In Amagansett, January and December present quite different weather experiences. January is generally colder, with minimum temperatures dropping to -13°C (8°F) and an average of only 2°C (37°F), while December sees slightly milder conditions, with a minimum of -9°C (16°F) and an average of 5°C (42°F). Precipitation is also more common in December, totaling 147 mm (5.8 in) over 12 days compared to January's 89 mm (3.5 in) over just 9 days. Additionally, January's humidity is a bit higher at 84%, compared to December's 80%. For more insights on December weather, check out Amagansett weather in December.

Compare Amagansett's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Amagansett

As January envelops Amagansett, it brings a stark contrast to the milder months preceding it. With temperatures dipping significantly, this month often feels chillier than the rest of the year, creating a serene yet brisk atmosphere. The high humidity of 84% and the frequent precipitation—accumulating to 89 mm over about nine days—add to the wintery feel, making this month distinctively raw and invigorating. While many seek warmer climes during this time, January offers a unique charm for those who embrace the cool coastal air. For more insights on Amagansett's weather patterns throughout the year, explore Amagansett Climate.