September Weather in Hampton Beach, United States

Last updated: February 24, 2025

Hampton Beach in September offers a pleasant coastal experience, with temperatures peaking at a maximum of 30°C (86°F) and settling to an average of 18°C (65°F). Visitors can enjoy the warm days, although nighttime can bring a refreshing drop to 7°C (46°F). With 78 mm (3.1 in) of rainfall spread over 8 days, the humidity hovers at a comfortable 71%, creating an inviting atmosphere for outdoor activities. Whether strolling along the beach or indulging in local cuisine, September at Hampton Beach presents a beautiful blend of summer warmth and fall tranquility.

September Temperature in Hampton Beach

As summer gives way to autumn, September in Hampton Beach brings a comfortable transition, with temperatures that show a delightful range. With minimums around 7°C (46°F) and maximums peaking at 30°C (86°F), the climate remains pleasantly warm, ideal for beach activities. The average temperature rests at a delightful 18°C (65°F), indicating a softening from the hotter summer months while still keeping the outdoor spirit alive. This month marks a gradual descent into the cooler temperatures of fall, foreshadowed by the significant drop in night temperatures compared to the sweltering highs of July and August. As the days grow shorter, September’s mild weather adds a touch of warmth to the autumn scenery, inviting visitors to enjoy the picturesque seaside before winter approaches.

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

The chart illustrates September temperature patterns in Hampton Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec303236465565717165554334
Data source: Temperature data for Hampton Beach 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 Hampton Beach

In September, Hampton Beach experiences a comfortable transition into fall, with precipitation amounting to 78 mm (3.1 in) over the month. This marks a slight decrease from the heavier summer rains of July and August, showcasing the area's gradual shift towards drier conditions. With only 8 days of rainfall, September strikes a balance between the lingering warmth of summer and the approaching chill of autumn. As the days shorten and temperatures cool, this month's precipitation sets the stage for the more substantial rainfall that typically arrives in October, making September a time of reflection on the vibrant summer while hinting at the seasonal changes ahead.

September Precipitation Trends in Hampton Beach

The chart displays monthly precipitation patterns in Hampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec79989414383881237178143108133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Hampton Beach

In September, Hampton Beach experiences a notable shift in humidity, with levels averaging 71% as the summer heat gradually gives way to the embrace of autumn. This marks a slight increase from the low 66% seen in August, hinting at a more comfortable, albeit moister, transition into fall. As summer's sweltering grip loosens, residents and visitors alike can enjoy moderate humidity that lingers before the cooler October days arrive, when levels rise again to 78%. Overall, September serves as a bridge, balancing the warm, sun-kissed days of summer with the crisp beginnings of the new season, creating a pleasantly humid atmosphere perfect for outdoor activities.

September Average Humidity in Hampton Beach

This chart illustrates the average monthly humidity levels in Hampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hampton Beach

As summer gives way to fall, the UV Index at Hampton Beach sees a notable shift in September, settling at 7 with a high exposure category. This marks a decrease from the peak values of 9 and 10 in the sweltering months of July and August, but it remains significant enough to require attention when spending time outdoors. Enjoyable beach days in September still afford 25-minute burn times, allowing for ample opportunities to bask in the sun before the cooler autumn weather arrives. Overall, September serves as a gentle reminder to stay vigilant about sun protection, even as the intensity of the sun begins to wane. For detailed insights on UV levels throughout the year, check out Hampton Beach UV Index.

Maximum UV Index Levels in Hampton Beach for September

The chart shows the monthly maximum UV Index (UVI) for Hampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Hampton 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 Hampton Beach

As summer gently fades, September in Hampton Beach offers a delightful transition into fall, bathed in a warm glow of 285 hours of sunshine. This month, though slightly less sunny than the sun-soaked days of July and August, still boasts a generous amount of light that invites visitors to soak in the lingering warmth. The trend throughout the year showcases a peak during the summer months, with June through August basking in over 330 hours of radiant sun. However, September's sunshine still surpasses the earlier months of the year, such as January's mere 150 hours. This gradual shift from summer's brilliance to autumn's embrace encapsulates the charm of Hampton Beach, making it a perfect time for beachgoers to relish the delightful weather before the crispness of fall sets in.

Monthly Sunshine Duration in Hampton Beach: September Highlighted

The September sunshine duration represents the total number of hours Hampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h183h256h245h295h330h335h337h285h221h193h176h
Data source: Hampton Beach September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hampton Beach During September

September in Hampton Beach offers a promising chance for sunny weather, with a 44% likelihood of sunshine. This marks a noticeable increase from the summer months of July and August, both sitting at 32%. While early fall sees some fluctuation, the chances for clear skies in September seem to outshine many of the preceding months, such as January and April, where sunshine stakes are lower at 42% and 40%, respectively. This improvement hints that as the seasons transition, beachgoers can still relish in the warmth of sun-filled days, making September a delightful time to visit.

Percentage of Sunny Days in September in Hampton Beach

The chart illustrates the percentage of sunny days in Hampton 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 Hampton Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%35%61%40%38%40%32%32%44%38%54%32%
Data source: Hampton Beach September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hampton Beach in September

As summer gracefully transitions into fall, September in Hampton Beach brings a notable shift in daylight duration, offering about 12 hours of daylight. This month marks the subtle decline from the peak brightness of summer, where June boasted a generous 15 hours of sunlight. Following the vibrant days of July and August, September’s daylight gradually eases into autumn, setting the stage for shorter days ahead. With each passing month, daylight dips further, as October's hours shrink to 10, and winter looms with just 9 hours in November and December. This gradual reduction not only marks a change in the physical environment but also signals the cozy, introspective season that lies ahead.

Average Daylight Hours in Hampton Beach for September

The chart illustrates the variation in daylight duration in Hampton Beach throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 23m10h 31m11h 57m13h 26m14h 40m15h 18m14h 57m13h 51m12h 26m10h 58m9h 41m9h 2m
Data source: Hampton Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Hampton Beach

As summer fades, September in Hampton Beach experiences a slight uptick in wind speed, reaching an average of 3.9 m/s (9 mph). This marks a gentle return to breezier conditions compared to the calmer summer months of July and August, where winds dipped to their lowest. Overall, the wind trend shows a gradual progression, starting from 4.7 m/s in the chilly January to the summer's tranquil breezes, before shifting back to mild gusts as autumn approaches. The transition into fall brings a refreshing change, creating a delightful atmosphere at the beach that invites both a sense of closure to summer and anticipation for the vibrant autumn days ahead.

Average September Wind Speed in Hampton Beach

The chart displays monthly wind speed patterns in Hampton 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.74.75.24.44.24.13.53.33.9 m/s4.44.64.6
Data source: Hampton Beach September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Hampton Beach Compares to Other Months

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

September and January present a stark contrast in weather conditions. In September, temperatures range from a comfortable minimum of 7°C (46°F) to a warm maximum of 30°C (86°F), with an average of 18°C (65°F). The month experiences moderate humidity at 71% and about 78 mm (3.1 in) of precipitation over 8 days. In contrast, January brings much colder temperatures, with minimums plummeting to -19°C (-2°F) and an average temperature of -1°C (30°F). The maximum temperature barely reaches 17°C (64°F), accompanied by higher humidity at 86% and similar precipitation levels of 79 mm (3.1 in) over the same number of days. This seasonal shift highlights the transition from warm late summer to the depths of winter, as detailed in Hampton Beach weather in January.

September and February offer starkly contrasting weather conditions. In September, temperatures range from a mild 7°C (46°F) at night to a warm 30°C (86°F) during the day, accompanied by an average temperature of 18°C (65°F). The month sees about 78 mm (3.1 in) of precipitation over 8 days, with humidity levels averaging 71%. In contrast, February experiences much colder temperatures, with a minimum of -16°C (4°F) and a maximum of 17°C (64°F), leading to an average of just 0°C (32°F). Precipitation increases slightly to 98 mm (3.9 in) over 11 days, and humidity is higher at 84%. For those curious about February specifics, you can check the Hampton Beach weather in February.

When comparing the weather in September and March, notable differences can be observed in temperature and precipitation. September enjoys a milder climate with minimum temperatures around 7°C (46°F) and average highs reaching 30°C (86°F), while March experiences much colder conditions, with minimum temperatures plunging to -14°C (8°F) and a much cooler average of 2°C (36°F). Precipitation levels in March are slightly higher, with 94 mm (3.7 in) over 10 days, compared to September's 78 mm (3.1 in) over 8 days. Additionally, March tends to have a higher humidity level at 82%, compared to 71% in September. For more detailed information about March weather, you can visit Hampton Beach weather in March.

September and April present notably different weather patterns. September typically enjoys warmer temperatures, with averages around 18°C (65°F) and highs reaching up to 30°C (86°F), while April is much cooler, averaging only 8°C (46°F) and peaking at 24°C (76°F). Precipitation is also higher in April, with 143 mm (5.6 in) falling over 13 days, compared to September's 78 mm (3.1 in) over just 8 days. Additionally, April tends to have slightly higher humidity levels around 80%, contrasting with September’s 71%. For more details on April's climate, check Hampton Beach weather in April.

In comparing the weather of September and May, September offers a warmer experience with average temperatures around 18°C (65°F), peaking at a comfortable 30°C (86°F). In contrast, May tends to be cooler, with an average temperature of 13°C (55°F) and maximums reaching 27°C (82°F). Both months experience similar levels of precipitation; September sees 78 mm (3.1 in) over 8 days, while May has slightly more precipitation at 83 mm (3.3 in) over 11 days. Humidity levels are fairly comparable, with September at 71% and May at 72%. For more specific details about weather patterns in May, you can check Hampton Beach weather in May.

When comparing the weather in September and June, both months exhibit similar average temperatures, hovering around 18°C (65°F), with maximum temperatures reaching up to 30°C (86°F). However, September experiences slightly cooler minimum temperatures, ranging from 7°C (46°F), compared to June's minimum of 8°C (47°F). In terms of precipitation, September sees 78 mm (3.1 in) over 8 days, while June has a higher precipitation level of 88 mm (3.5 in) spread over 10 days. Humidity levels are also comparable, with September at 71% and June at 72%. For more detailed information about June weather, check out Hampton Beach weather in June.

In comparing the weather between September and July, we see some notable distinctions. September tends to be cooler, with temperature lows averaging 7°C (46°F) compared to July's milder minimum of 13°C (56°F). While both months can reach similar maximum temperatures, July's average high is slightly warmer at 31°C (88°F) versus September's peak of 30°C (86°F). Additionally, July experiences more precipitation, with 123 mm (4.8 in) over 12 days, compared to September's 78 mm (3.1 in) over 8 days. Despite the higher rainfall in July, the humidity is slightly lower at 67% compared to September's 71%. For more detailed insights, you can check out Hampton Beach weather in July.

September's weather shows a noticeable shift compared to August, as temperatures begin to cool down. While August boasts a higher minimum temperature of 13°C (55°F) and an average of 22°C (71°F), September dips to a minimum of 7°C (46°F) and an average of 18°C (65°F). Both months have similar maximum temperatures, with August peaking at 31°C (88°F) and September reaching 30°C (86°F). Precipitation levels are fairly close, with September experiencing 78 mm (3.1 in) over 8 days compared to August's 71 mm (2.8 in) over 9 days. Humidity is slightly higher in September at 71%, compared to August's 66%. For a closer look at August’s conditions, you can visit Hampton Beach weather in August.

September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 7°C (46°F) to a maximum of 30°C (86°F), with an average of 18°C (65°F). Precipitation in September measures 78 mm (3.1 inches) over about 8 days, alongside a humidity level of 71%. Conversely, October sees a drop in temperatures, with minimums hitting 1°C (34°F) and an average of 13°C (56°F), peaking at 25°C (78°F). The month is wetter, accumulating 142 mm (5.6 inches) of rain over 11 days, while humidity increases slightly to 78%. For more details on October weather, you can check Hampton Beach weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a mild 7°C (46°F) at night to a warm 30°C (86°F) during the day, with an average of 18°C (65°F). The month experiences some rainfall, totaling 78 mm (3.1 in) over about 8 days, and the humidity sits at a comfortable 71%. In stark comparison, November sees significantly colder temperatures, with nighttime lows plunging to -12°C (11°F) and an average temperature of just 6°C (43°F). While it does reach a maximum of 20°C (69°F) on warmer days, the month also records increased precipitation, totaling 108 mm (4.3 in) over 11 days, accompanied by a higher humidity level of 84%. For more detailed insights into this seasonal transition, visit Hampton Beach weather in November.

September and December present strikingly contrasting weather conditions. In September, temperatures range from a mild 7°C (46°F) at night to a warm 30°C (86°F) during the day, with an average of 18°C (65°F). The month typically sees around 78 mm (3.1 in) of precipitation over 8 days and a humidity level of 71%. In contrast, December plunges into winter, featuring much colder temperatures that drop to a minimum of -19°C (-1°F) and max out at 15°C (59°F), resulting in an average of just 1°C (34°F). December experiences higher precipitation at 133 mm (5.2 in) over 10 days, with humidity rising slightly to 81%. For more detailed insights, you can check Hampton Beach weather in December.

Compare Hampton Beach's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Hampton Beach

As summer transitions into fall, September at Hampton Beach brings a delightful shift in weather. The days are pleasantly warm, with temperatures averaging a comfortable 18°C, making outdoor activities enjoyable. While the humidity remains relatively high at 71%, the cooler evenings offer a refreshing reprieve, perfect for beach strolls. Although September experiences about 8 days of precipitation, the rain showers are often brief, allowing plenty of time to bask in the beauty of the beach. This month stands out with its unique blend of summer warmth and early autumn coolness, setting the stage for stunning sunsets and tranquil ocean views. For a more detailed look at the climate in this coastal town, be sure to check out Hampton Beach Climate.