September Weather in Narragansett Pier, United States

Last updated: February 24, 2025

September in Narragansett Pier, United States offers a delightful transition into autumn, characterized by mild temperatures averaging around 20°C (67°F). The month peaks with maximum highs reaching 29°C (85°F), while cooler nights can dip to a refreshing 9°C (48°F). Visitors can expect a moderate level of humidity at 75%, enhancing the coastal charm. However, with 97 mm (3.8 in) of precipitation spread over 10 days, it’s advisable to prepare for occasional showers that grace the region. Overall, September provides a perfect blend of warmth and refreshing coastal breezes, making it an inviting time to experience the beauty of Narragansett Pier.

September Temperature in Narragansett Pier

As September rolls into Narragansett Pier, a noticeable shift in temperatures marks the transition from summer to autumn. With minimums dipping to 9°C (48°F) and averages settling around a comfortable 20°C (67°F), the month strikes a balance between the warmth of summer and the approaching chill of fall. The maximum temperatures still reach 29°C (85°F), allowing for plenty of outdoor activities under the fading summer sun. This month effectively showcases a gradual cooling trend, where the warm days hint at the lingering summer, yet invite the crisp air of autumn, making it a delightful time to experience the coastal charm of Narragansett Pier.

September Weather in Narragansett Pier: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Narragansett Pier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343539485766737367594638
Data source: Temperature data for Narragansett Pier 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 Narragansett Pier

In September, Narragansett Pier experiences a moderate level of precipitation, with 97 mm (3.8 in) of rain falling over the course of 10 days. This amount is consistent with the overall trend observed throughout the summer months, as September maintains a similar precipitation pattern to August, which recorded slightly less rain at 94 mm (3.7 in). Looking ahead, October typically brings a notable increase in both rainfall and precipitation days, with 144 mm (5.7 in) expected over 12 days. This sets the stage for a transition into the wetter autumn months, highlighting September as a pivotal time to prepare for the changing weather dynamics in the region.

September Precipitation Trends in Narragansett Pier

The chart displays monthly precipitation patterns in Narragansett Pier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec80103107130116971149497144105129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Narragansett Pier

In September, humidity in Narragansett Pier settles at a comfortable 75%, mirroring the levels of October. As summer transitions to fall, this slight dip continues the trend of decreasing humidity observed since the peak of 84% in January and February. The spring months showcased even higher humidity, but by September, the environment feels less muggy compared to the earlier heat of July and August, both at 76%. This decline reveals a gradual easing of humidity that hints at the crispness of autumn approaching, making September a pleasant bridge between the warmth of summer and the cooler, more invigorating air of fall.

September Average Humidity in Narragansett Pier

This chart illustrates the average monthly humidity levels in Narragansett Pier, 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 Narragansett Pier

In September, Narragansett Pier experiences a UV Index of 8, categorized as very high, which means sun exposure can lead to skin burns in just 15 minutes. This slight decline from the peak summer months shows a transition towards autumn, where the UV Index typically starts to dip. However, the risk remains significant, reflecting a trend of high exposure prevalent throughout the summer, especially in July and August, where the UV Index consistently hovered at 9 or 10. As the year progresses into October and November, the UV Index decreases further, indicating a shift toward safer sun exposure levels. For those planning outdoor activities in September, it's essential to stay informed and protected. For more details, visit the Narragansett Pier UV Index.

Maximum UV Index Levels in Narragansett Pier for September

The chart shows the monthly maximum UV Index (UVI) for Narragansett Pier 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: Narragansett Pier 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 Narragansett Pier

As summer gently transitions into autumn, September in Narragansett Pier enjoys a delightful 282 hours of sunshine, marking a golden farewell to the warm months. This period follows the peak of July, which boasts the highest sunlight at 346 hours, and transitions down to October's cooler 227 hours. Interestingly, September still holds a robust luminosity, significantly brighter than the year's start, with January only offering 149 hours. The gradual decline in sunny days begins here, but September's warmth and brightness still invite residents and visitors to relish the outdoors before the chill sets in, making it an enchanting time to soak up the lingering summer vibes.

Monthly Sunshine Duration in Narragansett Pier: September Highlighted

The September sunshine duration represents the total number of hours Narragansett Pier 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.
JanFebMarAprMayJunJulAugSepOctNovDec149h189h260h248h292h323h346h327h282h227h205h177h
Data source: Narragansett Pier September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Narragansett Pier During September

September in Narragansett Pier offers a promising likelihood of sunny weather, with a 46% chance of sunshine illuminating the early days of autumn. This positions the month favorably compared to the summer's peak, which sees a gradual decline in sunny days, with July and August reflecting lower chances at 38% and 31%, respectively. Interestingly, September's sunny disposition outshines the preceding months of June and May, which sit at 39% and 41%. As the warmth of summer lingers, September stands out as a hopeful bridge into fall, making it an enchanting time for outdoor activities amid the stunning coastal scenery.

Percentage of Sunny Days in September in Narragansett Pier

The chart illustrates the percentage of sunny days in Narragansett Pier 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 Narragansett Pier experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%31%61%45%41%39%38%31%46%44%56%32%
Data source: Narragansett Pier September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Narragansett Pier in September

As summer fades into autumn, September in Narragansett Pier experiences a notable transition in daylight duration, offering approximately 12 hours of sunlight. This marks a gentle decline from the sun-drenched 15 hours of June and 14 hours in July, gradually shifting towards the shorter days of October. The steady decrease reflects a broader trend as the year progresses, showcasing nature's rhythm—from the lengthy, vibrant days of late spring and summer to the cozy, introspective moments of fall and winter. With the sun setting earlier, this month invites residents and visitors alike to savor the warm hues and the crispness of approaching autumn.

Average Daylight Hours in Narragansett Pier for September

The chart illustrates the variation in daylight duration in Narragansett Pier throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 33m10h 37m11h 58m13h 21m14h 31m15h 6m14h 47m13h 44m12h 25m11h 2m9h 50m9h 13m
Data source: Narragansett Pier daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Narragansett Pier

In September, Narragansett Pier experiences a slight uptick in wind speed with an average of 3.9 m/s (9 mph), a refreshing change after the calmer summer months. This increase signals the transition from the laid-back, breezy vibes of July and August, where winds lingered at a gentle 3.3 m/s (7 mph). As autumn approaches, the winds pick up again, reflecting a notable trend where early fall brings a lively atmospheric shift compared to the stillness of peak summer. Following September, the winds rise to 4.3 m/s (10 mph) in October, suggesting a consistent seasonal pattern where late summer’s tranquility gives way to a brisker, invigorating autumn experience.

Average September Wind Speed in Narragansett Pier

The chart displays monthly wind speed patterns in Narragansett Pier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.54.64.34.13.93.33.33.9 m/s4.34.24.2
Data source: Narragansett Pier September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Narragansett Pier Compares to Other Months

The weather in Narragansett Pier 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 Narragansett Pier and find detailed weather information for every month.

September and January showcase a stark contrast in weather patterns. In September, temperatures range from a comfortable minimum of 9°C (48°F) to a warm maximum of 29°C (85°F), with average temperatures around 20°C (67°F). The month experiences approximately 97 mm (3.8 in) of precipitation over about 10 days, alongside a humidity level of 75%. In contrast, January is significantly colder, with temperatures plummeting to a minimum of -19°C (-1°F) and averaging just 1°C (34°F), while the maximum reaches only 17°C (64°F). January's precipitation is slightly less at 80 mm (3.1 in) over 9 days, but humidity is higher, sitting at 84%. For those interested in specific conditions, you can check out Narragansett Pier weather in January.

In September, the weather is notably milder, with temperatures ranging from a minimum of 9°C (48°F) to a comfortable average of 20°C (67°F), peaking at a maximum of 29°C (85°F). This month experiences about 97 mm of precipitation over approximately 10 days and maintains a humidity level around 75%. In contrast, February presents a stark difference, with much colder conditions, where temperatures drop to a minimum of -15°C (5°F) and struggle to reach an average of only 2°C (35°F), with a maximum of 16°C (61°F). Precipitation slightly increases to 103 mm, occurring over about 11 days, while humidity rises to 84%. For more insights, you can check Narragansett Pier weather in February.

When comparing the weather in September and March, we see significant differences in temperature and conditions. September boasts a mild climate with average temperatures around 20°C (67°F), reaching highs of 29°C (85°F), while March experiences much colder temperatures, averaging just 4°C (39°F) with a maximum of 17°C (63°F) and a chilling minimum of -10°C (14°F). Although both months receive approximately 10 days of precipitation, September has 97 mm (3.8 in), slightly less than March's 107 mm (4.2 in). Additionally, humidity levels are higher in March at 82%, compared to September's 75%. For a more detailed breakdown of March conditions, you can refer to Narragansett Pier weather in March.

September and April present contrasting weather patterns. In September, the temperatures range from a minimum of 9°C (48°F) to a warm maximum of 29°C (85°F), with an average of 20°C (67°F). Although this month sees less precipitation than April, with around 97 mm (3.8 in) over 10 days, the humidity remains relatively high at 75%. In contrast, April experiences cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 22°C (72°F). This month is also wetter, averaging 130 mm (5.1 in) over 12 days, resulting in slightly higher humidity at 79%. For more detailed insights, you can check Narragansett Pier weather in April.

September and May present contrasting weather experiences, despite both months exhibiting similar humidity levels of 75%. September boasts warmer average temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), while May offers a cooler average of 14°C (57°F), with temperatures dipping as low as 3°C (37°F). Precipitation is slightly higher in May, with 116 mm (4.6 in) recorded over 13 days compared to September's 97 mm (3.8 in) over 10 days. For a detailed look at the weather in May specifically, you can check Narragansett Pier weather in May.

When comparing the weather in September and June, both months exhibit similar temperature ranges, with minimums around 9-10°C (48-50°F) and maximums reaching 29°C (85°F). The average temperatures are nearly identical, fluctuating between 19-20°C (67°F). However, September tends to be slightly more humid, with levels at 75% compared to June's 78%. Precipitation remains the same for both months, with 97 mm (3.8 in) of rain expected over approximately 10 days. For a deeper look into June conditions, you can check Narragansett Pier weather in June.

In comparing the weather between July and September, July typically offers warmer conditions, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 33°C (93°F). In contrast, September cools down slightly, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F). Rainfall is also more prominent in July, totaling 114 mm (4.5 in) over 11 days compared to September's 97 mm (3.8 in) over 10 days, indicating a slightly drier September. Humidity levels remain similar, hovering around 75% in September and 76% in July. For a more detailed look at July weather, you can visit Narragansett Pier weather in July.

In comparing the weather of September and August, September tends to be cooler, with minimum temperatures dropping to 9°C (48°F) compared to August's milder 15°C (58°F). The average temperature in September is 20°C (67°F), slightly less than August's average of 23°C (73°F), while both months experience similar maximum temperatures, with September reaching up to 29°C (85°F) and August peaking at 31°C (88°F). Precipitation levels are comparable, with September receiving 97 mm (3.8 in) over 10 days and August experiencing only a slight decrease at 94 mm (3.7 in) over the same number of days. Humidity also remains high in both months, though slightly lower in September at 75% compared to August's 76%. For more detailed information on August weather, you can visit Narragansett Pier weather in August.

September typically offers warmer temperatures, with an average of 20°C (67°F) and highs reaching up to 29°C (85°F), while October sees a noticeable drop in average temperatures to 15°C (59°F), with highs of 26°C (80°F). Humidity levels remain consistent at 75% for both months, but October experiences increased rainfall, with 144 mm (5.7 in) compared to September's 97 mm (3.8 in), resulting in slightly wetter conditions over 12 days versus September's 10 days of precipitation. For more specific details on the October climate, you can check out Narragansett Pier weather in October.

In September, the weather is generally warmer, with average temperatures reaching around 20°C (67°F) and highs peaking at 29°C (85°F). The month experiences moderately high humidity at 75% and receives 97 mm (3.8 in) of precipitation over 10 days. In contrast, November brings a significant drop in temperatures, with an average of 8°C (47°F) and lows plummeting to -8°C (17°F). Despite being slightly wetter with 105 mm (4.1 in) of rainfall over 9 days, November's humidity rises to 80%. For more insights on the weather conditions in November, you can check Narragansett Pier weather in November.

September and December present striking differences in weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a warm 29°C (85°F) during the day, with an average of 20°C (67°F). The month experiences about 97 mm (3.8 in) of precipitation spread over 10 days, accompanied by a humidity level of 75%. In contrast, December sees much colder conditions, with temperatures dipping to a minimum of -14°C (8°F) and averaging only 3°C (38°F), peaking at a maximum of 17°C (62°F). Precipitation increases to 129 mm (5.1 in) over the same number of days, while humidity rises slightly to 80%. For a detailed look at December weather specifics, visit Narragansett Pier weather in December.

Compare Narragansett Pier's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Narragansett Pier

September at Narragansett Pier offers a refreshing transition from the warm summer days, with temperatures averaging a comfortable 20°C. While you may still enjoy the remnants of summer warmth, the month brings a significant increase in humidity and occasional rainfall, with about 10 days experiencing precipitation. This blend of warmth and moisture creates a unique atmosphere, making it a delightful time for both outdoor activities and coastal escapades. As you explore this charming seaside town, you'll find that September's weather stands out from the drier and hotter summer months, inviting a more relaxed and refreshing experience. For more insights into the climate of this beautiful region, visit Narragansett Pier Climate.