September Weather in Ocean Isle Beach, United States

Last updated: February 24, 2025

September weather at Ocean Isle Beach is characterized by a delightful mix of warmth and occasional rain, making it a perfect time for beachgoers and nature lovers alike. The maximum temperature reaches a balmy 32°C (90°F), while the average sits comfortably at 25°C (77°F), offering ideal conditions for outdoor activities. Although the minimum temperatures can dip to 13°C (56°F), the overall experience remains pleasant. Expect about 180 mm (7.1 in) of precipitation over 13 days, resulting in a humid atmosphere with an average humidity level of 81%. This blend of warmth and occasional rainfall not only enriches the landscape but also sets the stage for a vibrant coastal experience in Ocean Isle Beach.

September Temperature in Ocean Isle Beach

In September, Ocean Isle Beach transitions into a delightful early autumn, where temperatures range from a comfortable 13°C (56°F) at night to a warm 32°C (90°F) during the day. The average temperature reaches a pleasant 25°C (77°F), offering a perfect balance for those looking to enjoy the lingering warmth of summer while avoiding the peak heat. This month showcases a gradual decline from the summer highs experienced in July and August, yet it remains inviting for beach activities and outdoor adventures. As the air begins to cool, visitors can relish the stunning sunsets and quieter shores, making September an ideal time for a coastal getaway.

September Weather in Ocean Isle Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ocean Isle Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495356647277808077705752
Data source: Temperature data for Ocean Isle Beach 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 Ocean Isle Beach

In September, Ocean Isle Beach experiences a significant amount of rainfall, with 180 mm (7.1 in) recorded over approximately 13 days. This makes September one of the wetter months of the year, following the peak rainfall of August. The transition from summer to fall brings a noticeable dip in precipitation days, down from 21 in August. Despite this reduction, September still sustains a high accumulation, indicative of lingering summer storms. Overall, the month's rainfall reflects a shift in weather patterns while still providing ample moisture, setting the stage for the dryer months ahead in October.

September Precipitation Trends in Ocean Isle Beach

The chart displays monthly precipitation patterns in Ocean Isle Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec801027310012814616820718067100141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ocean Isle Beach

In September, Ocean Isle Beach experiences a humidity level of 81%, maintaining a trend of elevated moisture that peaks in the summer months. Following the mid-summer spikes of 82% in July and 81% in August, September remains comfortably humid, setting the stage for warm, lingering evenings. The month subtly transitions toward the dryer climate of autumn, as humidity begins to dip in October. Overall, September's humidity showcases the region's subtropical character, providing a vibrant backdrop for outdoor activities amidst lingering warmth and occasional sea breezes.

September Average Humidity in Ocean Isle Beach

This chart illustrates the average monthly humidity levels in Ocean Isle Beach, 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%80%79%78%78%78%82%81%81%78%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ocean Isle Beach

In September, the UV Index in Ocean Isle Beach remains quite high at 9, indicating a very high exposure category with a burn time of 15 minutes. This marks a slight decrease from the peak 11 observed in the summer months of June and July, yet still signifies the necessity for sun protection during outdoor activities. As the days transition from the sweltering summer heat to the more temperate autumn, it's important to stay vigilant about UV exposure. The trend of high UV indexes from May through September highlights the ongoing need for sunscreen and protective clothing during these months. For more details on the UV Index throughout the year, visit Ocean Isle Beach UV Index.

Maximum UV Index Levels in Ocean Isle Beach for September

The chart shows the monthly maximum UV Index (UVI) for Ocean Isle Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Ocean Isle Beach 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 Ocean Isle Beach

As summer gracefully wanes, September in Ocean Isle Beach continues to bask in abundant sunshine, with 296 hours of radiant daylight creating an inviting atmosphere for visitors. The month showcases a subtle decline from the sun-drenched peak of July, which recorded 336 hours, yet remains significantly bright compared to the chillier months ahead. This trend highlights a shift toward autumn, where the warm embrace of the sun lingers, reminiscent of the vibrant days of summer. With consistently high sunshine hours from May through September, this coastal gem offers a perfect backdrop for outdoor activities, making the transition into fall both enjoyable and picturesque.

Monthly Sunshine Duration in Ocean Isle Beach: September Highlighted

The September sunshine duration represents the total number of hours Ocean Isle Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec181h206h272h309h338h317h336h316h296h292h241h210h
Data source: Ocean Isle Beach September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ocean Isle Beach During September

In September, Ocean Isle Beach experiences a 54% chance of sunny weather, making it a delightful time to visit as summer gradually transitions into fall. This month stands out with a noticeable increase in sun compared to the summer months, where June and August dip to 30% and 37% respectively. The improvement from these warmer months reflects a trend towards clearer skies as the heat subsides. Following April's 59% chance, September holds a promising position in the yearly forecast, providing visitors with a perfect opportunity to enjoy the beach before autumn settles in. With only November at 61% edging just ahead, September offers a fantastic blend of pleasant temperatures and a decent likelihood of sunshine, inviting both relaxation and adventure by the coast.

Percentage of Sunny Days in September in Ocean Isle Beach

The chart illustrates the percentage of sunny days in Ocean Isle Beach 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 Ocean Isle Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%36%36%60%49%31%41%37%54%47%61%48%
Data source: Ocean Isle Beach September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ocean Isle Beach in September

As September unfolds in Ocean Isle Beach, the days start to cool, and the daylight duration gently decreases to 12 hours. This gradual decline marks the transition from the sun-drenched heights of summer, where daylight peaked at 14 hours in June and July, to the shorter days typical of the fall and winter months. While September still enjoys more lighting hours than in the earlier months of the year, such as January with just 10 hours, it signals a shift towards the cozier, darker days of October and November. This seasonal rhythm invites residents and visitors alike to savor the lingering warmth and vibrant sunsets that characterize this time of year.

Average Daylight Hours in Ocean Isle Beach for September

The chart illustrates the variation in daylight duration in Ocean Isle Beach throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 10m10h 58m11h 59m13h 2m13h 55m14h 21m14h 7m13h 20m12h 20m11h 17m10h 22m9h 55m
Data source: Ocean Isle Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ocean Isle Beach

In September, Ocean Isle Beach experiences a gentle breeze, with an average wind speed of 3.4 m/s (8 mph). This marks a slight increase from the calm of August, where the winds mellowed to 3.1 m/s (7 mph). As summer fades, September's winds offer a refreshing change, yet still remain softer than the earlier months of the year, which typically see speeds around 4.1 to 4.5 m/s. This moderate wind patterns not only enhance the beach's serene atmosphere but also create ideal conditions for leisurely walks along the shore, making it a perfect time for visitors to enjoy the tranquil beauty of the coastline.

Average September Wind Speed in Ocean Isle Beach

The chart displays monthly wind speed patterns in Ocean Isle Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.54.54.24.14.13.83.13.4 m/s3.94.24.0
Data source: Ocean Isle Beach September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ocean Isle Beach Compares to Other Months

The weather in Ocean Isle Beach 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 Ocean Isle Beach and find detailed weather information for every month.

September and January present strikingly different weather patterns. In September, temperatures range from a mild 13°C (56°F) at night to a warm 32°C (90°F) during the day, with an average of 25°C (77°F). The month sees significant rainfall, with 180 mm (7.1 in) falling over 13 days and humidity levels at 81%. Conversely, January brings much cooler temperatures, with a minimum of -7°C (19°F) and a maximum of 22°C (73°F), averaging just 9°C (49°F). While January is drier with only 79 mm (3.1 in) of precipitation over 9 days, it has slightly higher humidity at 83%. For more detailed information, visit Ocean Isle Beach weather in January.

September and February present contrasting weather conditions in Ocean Isle Beach. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). The month also sees considerable precipitation, totaling 180 mm (7.1 in) over approximately 13 days, and experiences high humidity levels at 81%. In stark contrast, February features much cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 22°C (72°F), averaging around 12°C (53°F). The month is drier, receiving only 102 mm (4.0 in) of rain over about 10 days, and maintains a slightly lower humidity of 79%. For more information, you can check the detailed Ocean Isle Beach weather in February.

September and March present notably contrasting weather conditions. In September, temperatures typically range from a minimum of 13°C (56°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). This month experiences significant rainfall, totaling around 180 mm (7.1 in) over approximately 13 days, alongside high humidity levels of 81%. In contrast, March brings cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 25°C (77°F), averaging 13°C (57°F). Precipitation is noticeably lower, at 73 mm (2.9 in) over about 9 days, with humidity slightly lower at 79%. For detailed insights specifically about March weather, you can check Ocean Isle Beach weather in March.

When comparing September and April weather, one can observe significant differences in temperature, precipitation, and humidity. September experiences much warmer temperatures, with a minimum of 13°C (56°F) and an average of 25°C (77°F), peaking at a maximum of 32°C (90°F). In contrast, April has cooler averages, starting at a minimum of 3°C (37°F) and peaking at 27°C (81°F), with an average temperature of 18°C (64°F). Precipitation is higher in September, totaling 180 mm (7.1 in) over approximately 13 days, compared to April's 100 mm (3.9 in) spread over just 8 days. Humidity remains fairly similar, with September at 81% and April slightly lower at 78%. For more details on weather conditions, you can refer to Ocean Isle Beach weather in April.

When comparing the weather in September and May, September tends to be warmer overall, with average temperatures reaching up to 25°C (77°F) compared to May’s 22°C (72°F). However, September experiences higher humidity at 81%, compared to May’s 78%, which can make the warmer temperatures feel more intense. Precipitation is also more frequent in September, with about 180 mm (7.1 in) over 13 days, whereas May sees less rainfall, recording 128 mm (5.1 in) over only 9 days. For those interested in more details, you can explore Ocean Isle Beach weather in May.

September and June exhibit similar average temperatures, both hovering around 25°C (77°F), with maximums peaking at 32°C (90°F) in September and 32°C (89°F) in June. However, September tends to be a wetter month, receiving 180 mm (7.1 in) of precipitation over 13 days compared to June's 146 mm (5.7 in) over 16 days. Additionally, humidity levels are slightly higher in September at 81%, versus 78% in June. For a closer look at June weather specifics, you can refer to Ocean Isle Beach weather in June.

When comparing the weather in September and July, we notice some distinct differences. September experiences a wider temperature range, with minimums dipping to 13°C (56°F) and averages around 25°C (77°F), while July maintains higher minimums of 20°C (68°F) and averages at 27°C (81°F). Both months see a maximum temperature of 32°C (90°F). Precipitation levels are slightly higher in September, with 180 mm (7.1 in) over 13 days compared to July's 168 mm (6.6 in) spread over 17 days. Humidity levels are quite similar, with September at 81% and July slightly higher at 82%. For a detailed look at July's conditions, you can check Ocean Isle Beach weather in July.

In comparing the weather between September and August, September tends to be slightly cooler, with minimum temperatures dropping to 13°C (56°F) compared to August's warmer 19°C (67°F). The average temperature in September is 25°C (77°F), while August sees a higher average of 27°C (80°F). Both months share the same maximum temperature of 32°C (90°F). However, September experiences less precipitation overall, with 180 mm (7.1 in) falling over 13 days, compared to August's 207 mm (8.1 in) over 21 days. Humidity levels remain consistent at 81% in both months, contributing to a similar feel despite the temperature variations. For more detailed insights, check out Ocean Isle Beach weather in August.

September typically experiences warmer temperatures, with minimums around 13°C (56°F) and averages reaching up to 25°C (77°F). In contrast, October sees a notable drop in minimum temperatures, averaging at 6°C (43°F), although the maximum temperature remains similar at 31°C (88°F). While September tends to be more humid at 81%, October maintains a slightly lower humidity level of 78%. Moreover, rainfall in September is significantly higher, with 180 mm (7.1 in) over 13 days, compared to October's 67 mm (2.6 in) over 10 days. For more detailed information about the weather in October, you can visit Ocean Isle Beach weather in October.

September and November present contrasting weather conditions. In September, temperatures range from a mild 13°C (56°F) at night to a warm 32°C (90°F) during the day, with an average of 25°C (77°F). The month also sees significant rainfall, totaling 180 mm (7.1 in) over 13 days, accompanied by high humidity levels at 81%. In contrast, November brings much cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 26°C (79°F), averaging 14°C (58°F). This month experiences less precipitation, totaling 100 mm (3.9 in) over just 10 days. Humidity slightly increases to 82%. For those seeking more details on November weather, you can refer to Ocean Isle Beach weather in November.

In September, the weather is characterized by warm temperatures, with an average of 25°C (77°F) and maximums reaching up to 32°C (90°F), making it a quite hot month. The humidity remains high at 81%, accompanied by significant rainfall of 180 mm (7.1 in) over 13 days. In contrast, December brings a stark change, with temperatures dropping to an average of 11°C (53°F), peaking at a milder 22°C (72°F) and dipping as low as -3°C (28°F). While precipitation decreases to 141 mm (5.6 in) over just 10 days, humidity slightly rises to 84%. This shift highlights the transition from the warm, humid conditions of September to the cooler, more variable climate of December. For detailed information, check out Ocean Isle Beach weather in December.

Compare Ocean Isle Beach's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ocean Isle Beach

As summer begins to wane, September at Ocean Isle Beach unveils a transition marked by milder temperatures and increased chances of rain. With average highs settling around 25°C (77°F), the month is notably more comfortable compared to the sweltering peak summer months. However, visitors should be prepared for occasional downpours, as September sees about 13 days of precipitation, contributing to a humidity level that hovers at 81%. This unique blend of warmth and moisture brings a lush vibrancy to the coastal landscape, making it a delightful time to experience the beach's natural beauty. For a deeper look into the island's weather patterns, check out Ocean Isle Beach Climate.