September Weather in Wolfeboro, United States

Last updated: February 24, 2025

Experience the captivating weather of Wolfeboro, United States, in September. With maximum temperatures reaching 33°C (91°F) and an average of 18°C (64°F), this month offers a delightful blend of warmth and cooler nights, perfect for those seeking a picturesque fall escape. However, temperatures can dip as low as 3°C (38°F), reminding us that autumn is approaching. Rainfall in September totals 66 mm (2.6 in) over approximately 7 days, contributing to a humidity level of 71%, which enhances the lush, vibrant landscapes. Whether you're strolling by the lake or enjoying the changing leaves, September in Wolfeboro promises a beautiful backdrop for your outdoor adventures.

September Temperature in Wolfeboro

In September, Wolfeboro experiences a delightful transition as summer begins to wane. With temperatures ranging from a minimum of 3°C (38°F) to a comfortable maximum of 33°C (91°F), the month boasts an average temperature of 18°C (64°F), striking a perfect balance for outdoor activities. The lingering warmth of late summer is evident, but as autumn approaches, the cooler nights set the stage for the vibrant fall foliage that this region is renowned for. As the month progresses, temperatures gradually decline, hinting at the chill of winter to come, making September an ideal time to savor the last days of warmth before the air turns crisp.

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

The chart illustrates September temperature patterns in Wolfeboro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec242633445566727164523829
Data source: Temperature data for Wolfeboro 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 Wolfeboro

In September, Wolfeboro experiences a moderate shift in precipitation patterns, with 66 mm (2.6 in) of rain accumulating over just 7 days. This drop in rainfall marks a noticeable decline compared to the wetter summer months, particularly July, which recorded 134 mm (5.3 in) over 12 days. As summer transitions to autumn, the increased sunshine and fewer rainy days during September suggest a clearer, more pleasant outlook, while the overall precipitation remains lower than in prior months. This trend sets the stage for the wetter autumn months ahead, particularly October, when averages jump back to 119 mm (4.7 in), demonstrating the seasonal ebb and flow of Wolfeboro's weather.

September Precipitation Trends in Wolfeboro

The chart displays monthly precipitation patterns in Wolfeboro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75847712874871347466119110119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wolfeboro

In September, Wolfeboro experiences a noticeable shift in humidity levels, with the average reaching 71%. This marks a slight increase from the drier summer months of July and August, where humidity hovered around 67% and 66%, respectively. As the warm season transitions into fall, humidity begins to rise again, hinting at the onset of cooler, crisper days ahead. This trend continues into October, where humidity levels rise significantly to 78%, underlining the region’s characteristic seasonal fluctuations. Overall, September serves as a bridge between the lower humidity of summer and the moister conditions of fall, making it a unique month in Wolfeboro's climatic calendar.

September Average Humidity in Wolfeboro

This chart illustrates the average monthly humidity levels in Wolfeboro, 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 Wolfeboro

As September wraps up summer in Wolfeboro, residents can expect a moderate UV Index of 7, signaling a high exposure category with a burn time of approximately 25 minutes. This trend showcases a gradual decline from the peak UV levels experienced in the previous summer months, where values soared to 9 and 10. This indicates that while it's essential to remain vigilant against sun exposure during early fall, the risk is notably lower than the intensity felt in July and August. With the days becoming shorter and the sun's angle changing, September provides an opportunity to enjoy outdoor activities with slightly decreased UV risk, reminding us to balance sun safety with the enjoyment of nature. For more information, check out the complete Wolfeboro UV Index.

Maximum UV Index Levels in Wolfeboro for September

The chart shows the monthly maximum UV Index (UVI) for Wolfeboro 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.
JanFebMarAprMayJunJulAugSepOctNovDec3458910997532
Data source: Wolfeboro 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 Wolfeboro

September in Wolfeboro, United States, typically bathes in a generous 290 hours of sunshine, capping off a summer that peaks in August with 336 hours of bright days. As the seasons transition, sunshine gradually declines into the autumn months, yet September still offers a vibrant blend of warm days and cool evenings. The gradual shift from July and August's sun-drenched glory suggests a lingering summer spirit, welcoming early fall hues without losing the charm of bright, clear skies. This trend of abundant sunshine not only enriches the local landscape but also invites residents and visitors alike to soak in the beauty of the changing seasons before the crispness of October, with its 212 hours, sets in.

Monthly Sunshine Duration in Wolfeboro: September Highlighted

The September sunshine duration represents the total number of hours Wolfeboro 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.
JanFebMarAprMayJunJulAugSepOctNovDec147h179h254h239h284h327h330h336h290h212h187h174h
Data source: Wolfeboro September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wolfeboro During September

In Wolfeboro, September brings a refreshing shift in the weather as the chance of sunny days rises to 41%, slightly surpassing the summer months of July and August. This suggests a promising transition into autumn, where the likelihood of sun begins to recover after a summer slump, enticing residents and visitors to enjoy the changing landscape. With September offering more sunshine compared to many preceding months, it positions itself as a delightful time for outdoor activities and scenic explorations, highlighting a subtle but welcoming trend towards brighter days as fall approaches.

Percentage of Sunny Days in September in Wolfeboro

The chart illustrates the percentage of sunny days in Wolfeboro 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 Wolfeboro experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%34%57%36%36%39%27%31%41%35%53%30%
Data source: Wolfeboro September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wolfeboro in September

As summer wanes and September arrives in Wolfeboro, the days gradually shorten, offering about 12 hours of daylight—a notable shift from the peak of 15 hours enjoyed in June and July. This transition reflects a common trend, where daylight begins to retreat after the vibrant months of summer, leading into the crispness of fall. Compared to August's 13 hours, September marks a subtle decline, signaling the approach of autumn with its cooler temperatures and stunning foliage. As the month progresses, the days will continue to shorten, setting the stage for the cozy ambiance of October and the early chill of winter.

Average Daylight Hours in Wolfeboro for September

The chart illustrates the variation in daylight duration in Wolfeboro throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 30m11h 58m13h 27m14h 43m15h 21m15h13h 52m12h 26m10h 57m9h 39m8h 58m
Data source: Wolfeboro daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Wolfeboro

As September rolls into Wolfeboro, the breeze begins to dance gently, with an average wind speed of 2.7 m/s (6 mph). This marks a slight uptick from the calm of summer, where July and August witnessed their lowest averages at 2.4 m/s (5 mph) and 2.3 m/s (5 mph), respectively. The transition to fall slowly stirs the air, hinting at the change in season ahead. Notably, September's wind is just shy of the higher speeds seen in early spring, when March flirted with 3.8 m/s (8 mph). As autumn approaches, there's a subtle reminder that nature is gearing up, making way for the brisker winds of October and beyond, while maintaining a cozy, inviting atmosphere that characterizes this charming lakeside town.

Average September Wind Speed in Wolfeboro

The chart displays monthly wind speed patterns in Wolfeboro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.13.83.22.93.02.42.32.7 m/s2.83.13.0
Data source: Wolfeboro September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Wolfeboro Compares to Other Months

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

September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 3°C (38°F) to a warm 33°C (91°F), with an average of 18°C (64°F), accompanied by relatively lower humidity at 71% and 66 mm (2.6 in) of precipitation over 7 days. Conversely, January plunges into the winter chill, seeing temperatures as low as -25°C (-13°F) and reaching a maximum of 15°C (59°F), with an average of -5°C (24°F). The month experiences higher humidity at 86%, along with 75 mm (2.9 in) of precipitation across 8 days. For more detailed insights, you can visit Wolfeboro weather in January.

September and February showcase contrasting weather patterns. September offers a much warmer climate with average temperatures around 18°C (64°F) and a maximum reaching up to 33°C (91°F), while February experiences chillier conditions, where average temperatures hover around -3°C (27°F) and can drop to a minimum of -23°C (-9°F). Additionally, September has a total precipitation of 66 mm (2.6 in) over about 7 days, making it relatively drier compared to February, which sees 84 mm (3.3 in) of precipitation spread over 11 days. The humidity levels also reflect these seasonal differences, with September at 71% and February higher at 84%. For more detailed insights on February weather, you can visit Wolfeboro weather in February.

In comparing the weather of September and March, it's evident that these months present stark contrasts. September typically experiences milder temperatures, with a minimum of 3°C (38°F) and average highs reaching up to 33°C (91°F), while March can be quite frigid, with lows dropping to -17°C (1°F) and average temperatures hovering around freezing. Precipitation levels are also notable; September sees about 66 mm (2.6 in) over an average of 7 days, compared to March's 77 mm (3.0 in) spread over 9 days, indicating a slightly wetter month. Additionally, the humidity is higher in March at 82%, compared to September's 71%. For a detailed look at March weather specifics, visit Wolfeboro weather in March.

September and April present distinct weather contrasts. September tends to be warmer, with average temperatures ranging from a chilly 3°C (38°F) at night to a warm 33°C (91°F) during the day, while April's temperatures are cooler, typically hovering between -5°C (24°F) and a maximum of 26°C (79°F). Precipitation also varies significantly; September sees about 66 mm (2.6 in) of rain over roughly 7 days, whereas April experiences nearly double that, with 128 mm (5.0 in) of rainfall over approximately 12 days. Additionally, humidity levels are higher in April at 80%, compared to September's 71%. For a detailed look at April's weather patterns, you can visit Wolfeboro weather in April.

In comparing the weather of September and May, we see distinct differences and similarities. September typically enjoys a wider temperature range, with minimums around 3°C (38°F) and maximums reaching up to 33°C (91°F), whereas May sees cooler conditions, starting at a minimum of 0°C (33°F) and averaging 13°C (56°F) at its peak of 32°C (90°F). Both months experience notable precipitation, with September totaling 66 mm (2.6 in) over 7 days and May slightly more at 74 mm (2.9 in) over 10 days. Additionally, humidity levels remain comparable, with September at 71% and May at 72%. For those interested in a detailed look at May weather in Wolfeboro, you can find more information here.

When comparing the weather in September and June, we see slight differences in temperature and precipitation patterns. September typically has a minimum temperature of 3°C (38°F) and an average high of 33°C (91°F), while June's temperatures range from a minimum of 4°C (40°F) to a maximum of 35°C (95°F). Both months experience considerable humidity, with September at 71% and June slightly higher at 72%. In terms of precipitation, September receives about 66 mm (2.6 in) over approximately 7 days, compared to June, which sees 87 mm (3.4 in) across about 10 days. For a more detailed look at June's weather, you can check Wolfeboro weather in June.

When comparing the weather in September to July, notable differences emerge. September enjoys a wider temperature range, with minimums of 3°C (38°F) and maximums reaching up to 33°C (91°F), offering an average temperature of 18°C (64°F). This month sees less precipitation, totaling 66 mm (2.6 in) over about 7 days, and maintains a relatively high humidity rate of 71%. In contrast, July tends to be warmer overall, starting with a minimum temperature of 11°C (52°F) and peaking at 36°C (97°F), with an average of 22°C (72°F). However, it experiences significantly more rain, with 134 mm (5.3 in) over 12 days, and slightly lower humidity at 67%. For a closer look at July in this region, you can check out Wolfeboro weather in July.

In September, temperatures begin to cool down compared to August, with minimums dropping to 3°C (38°F) and maximums reaching 33°C (91°F), while the average temperature decreases to 18°C (64°F). In contrast, August boasts higher minimum temperatures of 10°C (50°F) and a warmer average of 21°C (71°F), peaking at a maximum of 35°C (95°F). Precipitation levels are slightly lower in September at 66 mm (2.6 in) over 7 days, compared to August's 74 mm (2.9 in) over 9 days. Additionally, September experiences higher humidity at 71%, compared to August's 66%. For more details about August weather, visit Wolfeboro weather in August.

In comparing September and October weather, there is a notable shift in temperatures and precipitation patterns. September experiences a warmer range, with minimum temperatures around 3°C (38°F) and maximums reaching up to 33°C (91°F), leading to an average of 18°C (64°F). In contrast, October brings cooler air, with minimums dropping to -2°C (29°F) and an average temperature of just 11°C (52°F). Additionally, October sees an increase in precipitation, totaling 119 mm (4.7 in) over 11 days, compared to September's 66 mm (2.6 in) over 7 days, along with a rise in humidity to 78%. For more detailed weather information, you can visit Wolfeboro weather in October.

September weather is characterized by warm temperatures, with a minimum of 3°C (38°F) and an average high reaching up to 33°C (91°F). The month enjoys a pleasant average temperature of 18°C (64°F) and experiences moderate humidity at 71%, along with 66 mm (2.6 in) of precipitation spread across about 7 days. In contrast, November brings a significant drop in temperature, with lows plunging to -15°C (6°F) and an average temperature of just 3°C (39°F). Although the maximum temperature is milder at 22°C (72°F), November sees an increase in precipitation, totaling 110 mm (4.3 in) over 11 days, and heightened humidity at 84%. For a detailed look at the weather conditions in November, check out Wolfeboro weather in November.

The weather in September is typically much warmer than in December, with temperatures ranging from a chilly 3°C (38°F) at night to a warm 33°C (91°F) during the day and an average of 18°C (64°F). In contrast, December brings a significant drop in temperatures, with nighttime lows plunging to -23°C (-8°F) and a daytime maximum of only 15°C (60°F), averaging -2°C (29°F). Additionally, December experiences higher precipitation levels at 119 mm (4.7 in) over about 10 days, compared to September's 66 mm (2.6 in) over 7 days, and the humidity also increases to 81%. For more weather-related details, check out Wolfeboro weather in December.

Compare Wolfeboro's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Wolfeboro

September in Wolfeboro marks a distinct transition in the weather, as summer's warmth begins to wane and the crispness of autumn starts to set in. With maximum temperatures still reaching tolerable highs but averaging around a comfortable 18°C, it's a time for both pleasant days and cooler nights. The month sees a moderate amount of precipitation, often cutting through the humidity that can linger from summer, giving way to a refreshing atmosphere. While the days might still hint at summer, there's a noticeable shift, inviting residents and visitors alike to enjoy the beautiful foliage and serene lakesides before the chill of winter arrives. For a more detailed overview, visit Wolfeboro Climate.