September Weather in Belmar, United States

Last updated: February 24, 2025

September in Belmar, United States brings a delightful mix of warm temperatures and refreshing coastal breezes. With a maximum temperature reaching 31°C (87°F) and an average of 21°C (71°F), the weather remains pleasantly mild. However, the month is also marked by a minimum temperature dipping to 11°C (51°F), emphasizing the transition towards autumn. Rainfall is a notable aspect of September, with a total of 102 mm (4.0 in) spread over 10 days, leading to a humidity level of 68%, which contributes to the lush beauty of the landscape. Whether you're visiting the beaches or exploring the charming town, this month showcases Belmar's vibrant seasonal changes.

September Temperature in Belmar

In September, Belmar experiences a delightful transition to autumn, with temperatures reflecting this shift. The minimum temperature rises to a mild 11°C (51°F), while the average settles comfortably at 21°C (71°F), indicating a cozy atmosphere that's perfect for outdoor activities. The maximum temperature reaches a warm 31°C (87°F), showcasing the lingering summer warmth before the coolness of fall fully sets in. This month balances between the heat of summer and the crispness of autumn, making it an ideal time for both beach-goers and nature enthusiasts to enjoy the changing scenery. As daylight gradually shortens, the vibrant colors of nature emerge, offering a picturesque backdrop to the mild and inviting temperatures that define September in Belmar.

September Weather in Belmar: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Belmar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec363842516070777670624941
Data source: Temperature data for Belmar generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Belmar

In September, Belmar experiences a moderate precipitation total of 102 mm (4.0 in), contributing to the month's reputation for stability following the summer rains. With approximately 10 rainy days, this month stands out as one of the drier periods compared to the preceding months like August, which recorded 126 mm (4.9 in) over 14 days. The trend throughout the year shows a gradual increase in precipitation until mid-summer, after which amounts start to stabilize. Looking ahead, October typically sees a noticeable uptick in rainfall, making September a transition month characterized by a less intense, yet refreshing, rainfall pattern that helps set the stage for the wetter fall season.

September Precipitation Trends in Belmar

The chart displays monthly precipitation patterns in Belmar, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7812910912412989129126102153100127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Belmar

September in Belmar, United States, marks a transition as humidity levels settle at 68%, creating a comfortable close to summer. This slight increase from the drier months of July and August mirrors a broader trend observed throughout the year, where humidity begins high in the winter months and steadily declines to its lowest point in mid-summer. As the seasons shift, October's humidity rises again to 74%, hinting at the impending fall. Overall, September's humidity reflects a delicate balance between summer's residual warmth and the approaching coolness of autumn, inviting residents and visitors alike to enjoy the pleasant outdoors before the air turns crisper.

September Average Humidity in Belmar

This chart illustrates the average monthly humidity levels in Belmar, 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%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Belmar

As summer draws to a close in Belmar, the September UV Index remains notably high at 8, categorizing it in the very high exposure level, with a burn time of just 15 minutes. This slight dip from the peak of 10 seen during the summer months highlights the transition into fall, yet it serves as a reminder that UV rays can still pose a risk. With the UV Index trending downward as the year progresses, October will see a further drop to 6, marking a return to high exposure levels. Nevertheless, staying sun-smart remains vital throughout September, particularly for outdoor enthusiasts. For more detailed information, please visit Belmar UV Index.

Maximum UV Index Levels in Belmar for September

The chart shows the monthly maximum UV Index (UVI) for Belmar 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.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Belmar 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 Belmar

As September graces Belmar with its warm embrace, the town basks in 282 hours of sunshine, a delightful continuation of the summer's generous glow. This month may not match the sun-drenched heights of July, which boasts a dazzling 353 hours, but it stands as a testament to the lingering warmth of late summer. Following a splendid August with 323 hours of sunshine, September retains that sunny spirit, inviting both locals and visitors to savor the beautiful weather before autumn's cooler days set in. With a steady decline in daylight hours as the year progresses, this month provides a perfect blend of warmth and moderate temperatures, making it a cherished time for beachgoers and outdoor enthusiasts alike.

Monthly Sunshine Duration in Belmar: September Highlighted

The September sunshine duration represents the total number of hours Belmar 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.
JanFebMarAprMayJunJulAugSepOctNovDec153h182h257h249h287h325h353h323h282h232h217h180h
Data source: Belmar September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Belmar During September

In Belmar, United States, September brings a 48% chance of sunny weather, making it a lovely time to enjoy the transition from summer to fall. This month stands out with a consistent likelihood of sunshine, sitting favorably between the summer lows of 30% in August and the autumn's 41% in October. Interestingly, September's sun probability closely mirrors that of January, suggesting a slight warmth in early fall compared to the winter months. Overall, while the chance of sun fluctuates throughout the year, September's weather offers a pleasant opportunity to bask in the residual warmth before the cooler months set in.

Percentage of Sunny Days in September in Belmar

The chart illustrates the percentage of sunny days in Belmar 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 Belmar experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%30%56%46%44%38%46%30%48%41%55%32%
Data source: Belmar September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Belmar in September

As summer gives way to autumn, September in Belmar marks a gentle decline in daylight, providing about 12 hours of sun. This month serves as a subtle transition, bridging the long, bright days of summer—where daylight peaked at 14 hours—and the shorter days that follow in October, with only 11 hours of sunlight. The gradual reduction in daylight from June through September highlights a seasonal rhythm, as nature prepares for the cooler months ahead. With its crisp air and fading warmth, September invites both reflection and appreciation for the beauty of changing seasons.

Average Daylight Hours in Belmar for September

The chart illustrates the variation in daylight duration in Belmar throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 39m10h 40m11h 58m13h 18m14h 25m14h 58m14h 40m13h 40m12h 24m11h 5m9h 55m9h 20m
Data source: Belmar daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Belmar

As summer transitions to autumn in Belmar, United States, September showcases a noticeable uptick in wind speed, averaging 4.2 m/s (9 mph). This slight increase marks a departure from the languid breezes of July and August, which both recorded a calm 3.4 m/s (8 mph). The invigorating September winds gently herald the upcoming months, where speeds begin to climb again, reaching 4.6 m/s (10 mph) in October. Overall, September serves as a bridge between the languorous heat of summer and the brisk coolness of fall, inviting both residents and visitors to revel in the refreshing change of pace.

Average September Wind Speed in Belmar

The chart displays monthly wind speed patterns in Belmar, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.15.25.14.54.33.93.43.44.2 m/s4.64.84.4
Data source: Belmar September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Belmar Compares to Other Months

The weather in Belmar 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 Belmar and find detailed weather information for every month.

September and January present stark contrasts in weather patterns. September enjoys milder temperatures, with averages around 21°C (71°F) and highs reaching up to 31°C (87°F), while January grapples with colder conditions, averaging only 2°C (37°F) and dipping as low as -15°C (5°F). Precipitation is fairly common in both months, with September receiving about 102 mm (4.0 in) over 10 days, compared to January’s 78 mm (3.1 in) over 9 days. Furthermore, January exhibits higher humidity levels at 84%, compared to September's 68%, making the winter months feel much colder and more damp. For a closer look at January's specifics, visit Belmar weather in January.

When comparing the weather in September and February, notable contrasts emerge. September typically enjoys milder temperatures, with a minimum of 11°C (51°F) and an average high of 31°C (87°F), fostering pleasant conditions despite an average precipitation of 102 mm (4.0 in) over 10 days. In stark contrast, February brings a much colder climate, characterized by a minimum temperature plummeting to -14°C (6°F) and an average high of only 20°C (67°F). While February sees slightly more precipitation at 129 mm (5.1 in) over 12 days, the humidity is higher at 82%, making the air feel more frigid. For a closer look at February weather specifics, visit Belmar weather in February.

September and March present contrasting weather conditions that reflect the changing seasons. In September, temperatures range from a mild 11°C (51°F) at night to a warm 31°C (87°F) during the day, with an average of 21°C (71°F). The month experiences 102 mm (4.0 in) of precipitation over approximately 10 days, accompanied by a humidity level of 68%. In contrast, March sees much cooler temperatures, with minimums dropping to -8°C (18°F) and a maximum of 23°C (74°F), leading to an average of just 6°C (43°F). Precipitation increases slightly to 109 mm (4.3 in) over 11 days, with higher humidity at 81%. The distinct differences highlight the transition from late summer warmth to early spring chill. For more details on March weather, check out Belmar weather in March.

When comparing the weather of September and April, notable differences emerge. September enjoys warmer temperatures, ranging from a minimum of 11°C (51°F) to an average of 21°C (71°F) and a maximum of 31°C (87°F), while April is much cooler, with a minimum of 0°C (32°F), an average of 11°C (51°F), and a maximum of 26°C (80°F). Precipitation is somewhat comparable, with September receiving 102 mm (4.0 in) over about 10 days and April experiencing slightly more, with 124 mm (4.9 in) over 12 days. Additionally, humidity levels are higher in April at 78%, compared to September's 68%. For more detailed information, you can check Belmar weather in April.

When comparing the weather in September and May, we can see some notable differences. September tends to be warmer, with average temperatures ranging from a minimum of 11°C (51°F) to a maximum of 31°C (87°F), whereas May has cooler temperatures, starting from a minimum of 3°C (37°F) and peaking at 29°C (85°F). Both months experience significant precipitation, with September receiving 102 mm (4.0 in) over approximately 10 days and May slightly higher at 129 mm (5.1 in) over about 13 days. Humidity levels are quite similar in both months, with September at 68% and May at 69%. Overall, September offers a warmer and drier experience compared to the cooler and wetter conditions of May. For a closer look at May weather specifics, you can visit Belmar weather in May.

In comparing the weather of September and June, both months exhibit similar temperature ranges, with averages around 21°C (70°F) to 21°C (71°F) and maximums reaching up to 31°C (87°F to 88°F). However, September tends to have slightly higher humidity at 68% compared to June's 69%. Precipitation is also a factor; September receives more rainfall, totaling 102 mm (4.0 inches) over about 10 days, while June experiences slightly less at 89 mm (3.5 inches) across 11 days. For those interested in a detailed look at June weather, you can explore Belmar weather in June.

When comparing the weather in September to that of July, we can observe notable differences in temperature and precipitation patterns. September features a wider temperature range with a minimum of 11°C (51°F) and a maximum of 31°C (87°F), leading to an average of 21°C (71°F). In contrast, July typically enjoys warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 34°C (93°F), resulting in a higher average of 25°C (77°F). Additionally, September experiences slightly more rainfall, with 102 mm (4.0 in) over about 10 days, compared to July’s 129 mm (5.1 in) spread over 13 days. Humidity levels are also higher in September at 68%, compared to 62% in July. For a detailed look at the weather conditions in July, you can visit Belmar weather in July.

In comparing the weather of September to August, September experiences a more moderate temperature range with minimums dipping to 11°C (51°F) compared to August's higher minimum of 17°C (63°F). The average temperature in September is 21°C (71°F), which is slightly cooler than August's average of 24°C (76°F), though the maximum temperatures in both months are quite similar, with September peaking at 31°C (87°F) and August reaching 32°C (89°F). Precipitation levels decrease in September, with 102 mm (4.0 in) recorded over 10 rainy days, while August sees more rainfall at 126 mm (4.9 in) over 14 days. Interestingly, September's humidity is slightly higher at 68%, compared to August's 65%. For a more detailed look at how August weather specifically impacts the area, visit Belmar weather in August.

In September, the weather generally features warmer temperatures, with an average of 21°C (71°F) and highs reaching up to 31°C (87°F). However, it also experiences significant rainfall, averaging 102 mm (4.0 in) over about 10 days, coupled with a humidity level of 68%. In contrast, October brings a notable drop in temperatures, with an average of 17°C (62°F) and lows dipping to 4°C (40°F). While the maximum temperature can still reach 32°C (89°F), October typically sees increased precipitation at 153 mm (6.0 in) over 12 days, along with higher humidity levels of 74%. For a detailed look at what to expect, check out Belmar weather in October.

September and November present a striking contrast in weather characteristics. In September, temperatures range from a pleasant minimum of 11°C (51°F) to a warm maximum of 31°C (87°F), with an average of 21°C (71°F). Precipitation is relatively high, totaling 102 mm (4.0 in) over about 10 days, accompanied by a comfortable humidity level of 68%. In contrast, November sees significantly cooler temperatures, with a minimum of -7°C (20°F) and an average of just 9°C (49°F), peaking at 22°C (72°F). Precipitation remains similar at 100 mm (3.9 in) over the same number of days, but the humidity rises to 82%, creating a noticeably chillier atmosphere. For more details on November weather patterns, you can check the link: Belmar weather in November.

September typically showcases a warm climate, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 31°C (87°F) and an average of 21°C (71°F). The month experiences moderate precipitation of 102 mm (4.0 in) over about 10 days, accompanied by a comfortable humidity level of 68%. In contrast, December ushers in a starkly different atmosphere, with much cooler temperatures that dip as low as -10°C (15°F) and average around 5°C (41°F), peaking at 18°C (64°F). The month sees an increase in precipitation to 127 mm (5.0 in), while humidity rises slightly to 80%. For more detailed insights on December weather, check out Belmar weather in December.

Compare Belmar's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Belmar

As September arrives in Belmar, the weather begins to transition, offering a refreshing balance between summer warmth and the crispness of fall. With average temperatures hovering around a pleasant 21°C (71°F), the month is characterized by occasional warm spells, where highs can reach 31°C (87°F), inviting beachgoers to savor the last days of summer. However, the month also sees an increase in precipitation, with 10 days experiencing rainfall, contributing to the overall humidity of 68%. This shift makes September a unique blend of lingering warmth and emerging autumn vibes, setting the stage for beautiful autumn scenery. For more details on what to expect year-round, visit Belmar Climate.