Last updated: February 24, 2025
September in Newport, United States offers a delightful transitional climate as summer gently fades into autumn. With maximum temperatures reaching a comfortable 27°C (80°F) and an average of 20°C (67°F), residents and visitors can enjoy pleasant outdoor activities. However, the month also brings some rain, accumulating to 110 mm (4.3 in) over 10 days, contributing to a relatively high humidity level of 75%. This blend of warmth and moisture creates a distinct charm, making September a captivating time to experience the coastal beauty and vibrant local culture of Newport.
In September, Newport experiences a delightful transition into early autumn, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (80°F). The average temperature settles at a pleasant 20°C (67°F), making it an ideal time for outdoor activities. This month stands out as a warm and inviting time of year, following a hot summer, characterized by a gradual cooling trend. As the days shorten and the vibrant foliage begins to emerge, visitors and locals alike can enjoy the temperate climate that marks the shift towards the cozy charm of fall in Newport.
In September, Newport experiences a transition towards the wetter months, with an average precipitation of 110 mm (4.3 in) spread over 10 days. This level of rainfall marks a notable increase compared to the drier summer months of July and August, which each recorded only 104 mm (4.1 in) and 89 mm (3.5 in) respectively. The approaching fall typically brings about a higher frequency of rain, as seen in the significant spike in October, which welcomes 169 mm (6.7 in). Overall, September serves as a bridge, heralding the increased rainfall that characterizes the later autumn months, making it a pivotal point in Newport's climatic rhythm.
As September unfolds in Newport, United States, the humidity gracefully settles at 75%, mirroring the levels of the preceding month. This slight dip continues the trend established during the summer, where July and August maintained a consistent humidity of 76%. Throughout the year, humidity sees its highest peaks in the winter months, hovering around 84% in both January and February, before gradually decreasing as the seasons change. By autumn, September marks a transition to drier conditions, paving the way for October, which shares the same 75% level. Overall, Newport experiences a gentle ebb and flow in humidity, ensuring that the summer’s warmth gives way to a more refreshing atmosphere as fall approaches.
As September rolls into Newport, the sun remains a formidable presence with a UV Index of 8, classifying it in the very high exposure category—making it essential for residents and visitors to take precautions against harmful UV rays. While UV levels dip slightly from the peak of summer, they still demand attention, with a burn time of just 15 minutes for unprotected skin. This trend reflects a consistent pattern throughout the summer months, where UV exposure was particularly intense, peaking in June at a UV Index of 10. As the season transitions, it's crucial to remain vigilant about sun safety even in early autumn. For more details on UV exposure trends throughout the year, visit Newport UV Index.
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In September, Newport enjoys a delightful 282 hours of sunshine, marking a transition from the sun-soaked peak of summer. This month witnesses a gradual decline in daylight, echoing the shifting seasons, as it trails closely behind the sunniest summer months of July and August, which boasted 347 and 329 hours respectively. Following the vibrant sunshine of summer, September retains a generous amount of brightness, though it anticipates the cooler days ahead, with October showing a notable drop to 230 hours. The consistent hours of sunshine throughout these months highlight Newport's charm, where the warm glow of late summer lingers just a little longer, inviting visitors to savor its beauty before autumn sets in.
In Newport, September offers a pleasant respite from the summer heat, featuring a 47% chance of sunny weather. While this probability is slightly higher than the often overcast August, it's closely aligned with other transitional months like April and October. This trend of moderate sunshine suggests that as summer transitions to fall, residents and visitors can still enjoy comfortable days bathed in sunlight. Interestingly, the likelihood of sunny weather increases further in November, reinforcing Newport's charm as a destination with varying yet appealing weather patterns throughout the year. Overall, September strikes a perfect balance, making it an ideal time to soak up the sun before the onset of cooler days.
As summer transitions into autumn, September in Newport showcases a delightful balance in daylight, with approximately 12 hours of sun each day. This marks a gradual decline from the sun-soaked heights of 15 hours in June and 14 hours in July, while still offering more light than the shorter days of the upcoming October, which drops to 11 hours. The month bridges the peak of summer and the onset of winter, inviting a gentle tapering of daylight that ushers in the vibrant colors of fall. This rhythmic shift underscores the natural cadence of the seasons, as daylight gradually recedes, hinting at the cozy evenings ahead.
As the summer days draw to a close in Newport during September, the average wind speed begins to pick up slightly, reaching 5.1 m/s (11 mph). This brief increase in wind intensity signals a transition from the milder breezes of August, which hovered around 4.2 m/s (9 mph). While the winds are still relatively gentle compared to the gusts of autumn, September's winds provide a refreshing warmth that perfectly complements the lingering summer sunshine. Notably, this month sees a gradual rebound from the softer summer breezes, hinting at the more robust winds that lie ahead in the fall months, making it an ideal time for coastal activities before winter sets in.
The weather in Newport 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 Newport and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a mild 11°C (52°F) at night to a warm 27°C (80°F) during the day, with an average of 20°C (67°F). Humidity is moderate at 75%, and the month sees around 110 mm (4.3 in) of precipitation over about 10 days. In stark contrast, January experiences frigid temperatures, with a minimum of -17°C (2°F) and a maximum of just 14°C (57°F), averaging around 1°C (35°F). The humidity is higher at 84%, and precipitation is slightly lower at 95 mm (3.8 in) over about 9 days. For more details, check out Newport weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 11°C (52°F) to a warm 27°C (80°F), with an average of 20°C (67°F). The month experiences a fair amount of precipitation at 110 mm (4.3 in) over approximately 10 days, accompanied by a humidity level of 75%. In contrast, February brings much colder conditions, with temperatures plunging from a chilling -14°C (7°F) to a maximum of 12°C (54°F), averaging only 2°C (36°F). This month also sees slightly higher precipitation at 121 mm (4.8 in) over about 12 days and a higher humidity level of 84%. For a closer look at February weather, visit Newport weather in February.
When comparing the weather in September and March, notable differences emerge. September typically boasts milder temperatures, with a minimum of 11°C (52°F) and an average of 20°C (67°F), while March experiences a chillier climate with a minimum of -9°C (16°F) and an average of 3°C (39°F). Precipitation levels are relatively similar, with September receiving 110 mm (4.3 in) and March slightly more at 119 mm (4.7 in), both spread over about 10 days. Additionally, March has a higher humidity level of 82% compared to September's 75%, contributing to its brisk feel. For a closer look at the weather patterns for March, visit Newport weather in March.
September and April present contrasting weather patterns. In September, the temperatures are generally mild and warm, with average highs reaching 27°C (80°F) and a pleasant average of 20°C (67°F), while precipitation levels are moderate at 110 mm (4.3 in) over about 10 days. In contrast, April experiences cooler conditions, with average highs only reaching 17°C (64°F) and a more pronounced chill at night, with minimum temperatures dropping to 0°C (32°F). Additionally, April tends to be a wetter month, with total precipitation of 147 mm (5.8 in) occurring over 12 days, coupled with slightly higher humidity at 79%. For more details, you can visit Newport weather in April.
When comparing the weather in September and May, it's evident that September tends to be warmer and more stable. With average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (80°F), September showcases a more pleasant climate than May, which has a cool minimum of 4°C (39°F) and an average maximum of 22°C (72°F). While both months experience substantial precipitation—110 mm (4.3 in) in September and 132 mm (5.2 in) in May—September has fewer rainy days, with about 10 compared to May's 14. Despite similar humidity levels of 75% in both months, September offers a more inviting atmosphere for outdoor activities. For a closer look at May's specific conditions, check out Newport weather in May.
When comparing the weather of September and June, both months exhibit similar temperature ranges, with minimums around 11°C (51-11°C) and average temperatures slightly higher in September at 20°C (67°F) compared to June's 18°C (64°F). The maximum temperatures also reflect this trend, reaching 27°C (80°F) in September while peaking at 25°C (78°F) in June. Precipitation levels are fairly comparable as well, with September receiving 110 mm (4.3 in) and June just slightly less at 104 mm (4.1 in), both accumulating rainfall over approximately 10 days. Humidity is slightly elevated in June at 78% versus 75% in September. For a more detailed look at the weather in June, you can visit Newport weather in June.
In comparing the weather between September and July, we observe a notable shift in temperature and precipitation patterns. September features a cooler temperature range, with a minimum of 11°C (52°F) and a maximum of 27°C (80°F), while July enjoys warmer temperatures, starting from a minimum of 15°C (60°F) and peaking at 29°C (84°F). Although both months experience similar levels of precipitation—110 mm (4.3 in) in September compared to 104 mm (4.1 in) in July—the number of rainy days is slightly lower in September with 10 days of precipitation compared to 11 days in July. Humidity remains fairly consistent, with September at 75% and July at 76%. For more details on July weather, you can visit Newport weather in July.
In comparing the weather of September and August, September tends to be slightly cooler with an average temperature of 20°C (67°F) compared to August's 22°C (73°F). The maximum temperatures are also a tad lower in September, reaching 27°C (80°F), as opposed to August's peak of 28°C (83°F). September experiences more rainfall, recording 110 mm (4.3 in) compared to August's 89 mm (3.5 in), even though both months have a similar number of rainy days at 10. Humidity levels are relatively close, with September at 75% and August at 76%. For more details on August weather, visit Newport weather in August.
September tends to be warmer than October, with average temperatures peaking at 20°C (67°F) compared to just 15°C (60°F) in October. The maximum temperature in September can reach up to 27°C (80°F), while October sees a milder maximum of 23°C (74°F). Precipitation also increases in October, rising to 169 mm (6.7 in) over 13 days, compared to September’s 110 mm (4.3 in) over 10 days. Despite the cooler temperatures and higher rainfall, both months share a humidity level of 75%. For more details on October weather in Newport, check out Newport weather in October.
September and November display contrasting weather patterns. In September, temperatures range from a pleasant 11°C (52°F) at night to a warm 27°C (80°F) during the day, making it a comfortable month with an average of 20°C (67°F). However, it also brings significant rainfall, totaling 110 mm (4.3 in) over roughly 10 days, along with a humidity level of 75%. In contrast, November sees a notable drop in temperatures, with daily highs reaching only up to 20°C (68°F) and lows plummeting to -7°C (20°F), resulting in an average temperature of 9°C (48°F). Rainfall increases slightly to 117 mm (4.6 in) over the same number of days, and humidity rises to 80%. For more details, check out Newport weather in November.
September and December present stark contrasts in weather patterns. In September, temperatures range from a mild 11°C (52°F) at night to a warm 27°C (80°F) during the day, with an average of 20°C (67°F). The month typically sees around 110 mm (4.3 in) of precipitation over 10 days, accompanied by a relatively humid atmosphere with 75% humidity. In contrast, December experiences a much cooler climate, with temperatures dropping as low as -13°C (9°F) and averaging just 4°C (39°F). Although it remains wetter with 147 mm (5.8 in) of precipitation over 11 days, the humidity rises slightly to 80%. For those interested in detailed December weather, you can check out Newport weather in December.
As September graces Newport, it brings a delightful shift from the sweltering summer heat to more temperate conditions. Visitors can expect milder days with comfortable average temperatures, a refreshing contrast to the hotter months that precede it. While the humidity remains relatively high, the occasional rainfall—spreading across approximately 10 days—adds a sense of rejuvenation to the atmosphere. This transitional period is ideal for those looking to enjoy outdoor activities without the summer crowds. For a deeper dive into how these factors shape Newport's overall climate, check out Newport Climate.