September Weather in North Conway, United States

Last updated: February 24, 2025

In September, North Conway, United States, experiences a delightful transition as summer gradually gives way to autumn. With maximum temperatures reaching a comfortable 30°C (86°F) and an average of 15°C (59°F), outdoor activities remain inviting. The early autumn backdrop is complemented by a minimum temperature of -3°C (27°F), giving a hint of the seasonal chill to come. Precipitation is moderate at 73 mm (2.9 in) over approximately 10 days, enhancing the lush landscape, while humidity levels linger around 71%, creating a refreshing atmosphere. This month showcases the region's natural beauty and vibrant scenery, making it an ideal time for exploration and outdoor adventures.

September Temperature in North Conway

As September rolls in, North Conway experiences a noticeable transition in temperatures, reflecting the shift from summer to fall. The month starts with a minimum of -3°C (27°F), which is a cool reminder of the chilly months ahead, while the average temperature rests comfortably at 15°C (59°F). Daytime highs reach a pleasant 30°C (86°F), allowing for lingering warmth as the leaves begin to change. This blend of cooler nights and warm days creates an enchanting atmosphere, perfect for outdoor activities amidst the stunning fall foliage. As summer's heat fades, September offers a delightful balance that invites exploration and appreciation of the region's natural beauty.

September Weather in North Conway: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in North Conway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec182128405363686659483323
Data source: Temperature data for North Conway 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 North Conway

September in North Conway typically showcases a gentle transition into autumn with an average precipitation total of 73 mm (2.9 in), making it one of the drier months of the year. With rainfall spread over 10 days, the month signals a decrease in precipitation compared to the peak summer months, particularly July, which records 158 mm (6.2 in) of rain. As the leaves begin to change, September's weather becomes more moderate, correlating with a decline in total precipitation throughout the month. This shift often brings refreshing cooler temperatures, setting the stage for the vibrant foliage of October, which bounces back to 155 mm (6.1 in). Overall, September acts as a bridge in North Conway's climatic pattern, easing the way into the more variable weather of fall.

September Precipitation Trends in North Conway

The chart displays monthly precipitation patterns in North Conway, 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.
JanFebMarAprMayJunJulAugSepOctNovDec9398821539711115810773155130148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in North Conway

In September, North Conway experiences a noticeable shift in humidity, settling at 71% after the summer months. This marks a slight increase from the lower levels recorded in July and August, which hover around 67% and 66%, respectively. As the region transitions into autumn, humidity levels are beginning to rise again with October bringing 78%. This gradual fluctuation illustrates a typical trend, where the summer's drier air gives way to the more moisture-laden atmosphere characteristic of fall, creating a refreshing backdrop as the leaves start to change. With humidity levels still lower than the winter peak of 86% in January, September offers a comfortable balance, inviting outdoor activities amidst the crisp, inviting air.

September Average Humidity in North Conway

This chart illustrates the average monthly humidity levels in North Conway, 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 North Conway

As September arrives in North Conway, the UV Index begins to show a gradual decline from the intense summer highs. With a UV Index of 7, this month falls within the high exposure category, allowing for a burn time of 25 minutes. This trend indicates a slight easing of sun intensity compared to the peak summer months, where values reached 9 to 10. As we transition into autumn, it's essential to remain vigilant and protect your skin, especially during the sunnier days. For more detailed insights on UV levels throughout the year, check out the comprehensive guide here: North Conway UV Index.

Maximum UV Index Levels in North Conway for September

The chart shows the monthly maximum UV Index (UVI) for North Conway 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.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: North Conway 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 North Conway

As summer transitions into fall, September in North Conway offers a delightful blend of warm days and crisp evenings, showcasing an impressive 290 hours of sunshine—though slightly less than the sun-drenched months of July and August, it still provides ample opportunity to bask in the glow of the sun. The gradual decline in sunny hours hints at the approaching cooler months, following a peak during the summer with July and August each exceeding 320 hours. This steep rise in sunshine from winter's low of 139 hours in January to September's golden glow illustrates a seasonal rhythm, inviting locals and visitors to enjoy the vibrant autumn colors illuminated by the fading warmth of late summer. As September fades, the sun's retreat serves as a gentle reminder of the cozy indoor comforts waiting in October's promise of 202 hours.

Monthly Sunshine Duration in North Conway: September Highlighted

The September sunshine duration represents the total number of hours North Conway 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.
JanFebMarAprMayJunJulAugSepOctNovDec139h176h252h228h269h322h326h332h290h202h180h168h
Data source: North Conway September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in North Conway During September

In North Conway, September ushers in a notable increase in the likelihood of sunny weather, with an 42% chance of sunshine—a pleasant contrast to the summer months where July and August dip to 25% and 30% respectively. As the summer crowds start to wane and the vibrant colors of early autumn begin to emerge, September's weather offers a refreshing balance between warmth and clear skies. This month stands out as a promising time for outdoor enthusiasts, suggesting a shift toward brighter days after the more unpredictable weather experienced in mid-summer. Overall, September emerges as one of the more inviting months for enjoying the natural beauty of North Conway.

Percentage of Sunny Days in September in North Conway

The chart illustrates the percentage of sunny days in North Conway 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 North Conway experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%29%51%32%32%39%25%30%42%32%51%28%
Data source: North Conway September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in North Conway in September

As summer draws to a close in North Conway, September greets residents with 12 hours of daylight, a gentle transition from the vibrant long days of July and June. This reduction in daylight is part of a natural rhythm, where the days start to shorten following the peak summer months. With September’s longer evenings, the soft, golden light invites outdoor adventures, making it a perfect time for hiking and enjoying the beautiful fall foliage. As autumn approaches, daylight hours will continue to dwindle, offering a chance to appreciate the changing seasons and the cozy charm they bring to this picturesque town.

Average Daylight Hours in North Conway for September

The chart illustrates the variation in daylight duration in North Conway throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 18m10h 28m11h 57m13h 28m14h 46m15h 25m15h 4m13h 54m12h 27m10h 56m9h 36m8h 55m
Data source: North Conway daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in North Conway

As September rolls into North Conway, the wind begins to pick up slightly from the summer calm, with an average speed of 2.1 m/s (5 mph). This marks a subtle transition from the year's lowest gusts recorded in July and August, where the winds slowed to a gentle 1.9 m/s (4 mph) and 1.7 m/s (4 mph), respectively. Yet, September’s breeze is still a whisper compared to the more blustery months that precede winter. The average wind speed in early autumn aligns with those of October, hinting at a stable climatic shift as the region prepares for the crisp air of fall. Overall, the trend shows a gradual increase in wind activity as summer fades, inviting the vibrant hues and refreshing chill that characterize the coming months.

Average September Wind Speed in North Conway

The chart displays monthly wind speed patterns in North Conway, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.63.32.82.42.51.91.72.1 m/s2.12.52.5
Data source: North Conway September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in North Conway Compares to Other Months

The weather in North Conway 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 North Conway and find detailed weather information for every month.

In September, the weather is markedly warmer, with temperatures ranging from a chilly -3°C (27°F) at night to a pleasant 30°C (86°F) during the day, averaging around 15°C (59°F). Although there is some rainfall, with precipitation of 73 mm (2.9 in) over about 10 days, the humidity is a more comfortable 71%. In contrast, January brings a dramatic drop in temperatures, with nighttime lows plunging to -28°C (-19°F) and daytime highs peaking at just 12°C (53°F), resulting in an average of -8°C (18°F). January also sees increased precipitation at 93 mm (3.7 in), but the humidity is higher at 86%. For a more detailed comparison, you can check North Conway weather in January.

September and February present contrasting weather conditions, reflecting the transition from late summer to mid-winter. In September, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 30°C (86°F), with an average of about 15°C (59°F), and the month enjoys moderate precipitation of 73 mm (2.9 in) spread over 10 days and a humidity level of 71%. In stark contrast, February experiences much colder temperatures, with minimums plunging to -26°C (-15°F) and an average temperature of -6°C (21°F). The maximum temperature in February only reaches up to 15°C (60°F), and precipitation is slightly higher at 97 mm (3.8 in) over 11 days, coupled with increased humidity at 84%. For more detailed insights on February weather, you can visit North Conway weather in February.

In comparing the weather of September and March, notable differences emerge in temperature and conditions. September enjoys a much milder range, with minimum temperatures around -3°C (27°F) and maximums reaching up to 30°C (86°F), along with a comfortable average of 15°C (59°F). With 73 mm of precipitation over about 10 days, humidity levels sit at a moderate 71%. Conversely, March presents a stark contrast, featuring colder temperatures that dip as low as -21°C (-6°F) and average around -2°C (28°F). Though it experiences a slightly higher precipitation rate of 82 mm and a similar number of rainy days (9), the humidity rises to 82%, contributing to a much chillier ambiance. For a closer look at what to expect, check out North Conway weather in March.

When comparing the weather in September and April, it's evident that both months exhibit distinct characteristics. September tends to be milder, with average temperatures around 15°C (59°F), reaching highs of up to 30°C (86°F), while April has cooler averages of just 5°C (41°F) and can drop to a minimum of -14°C (6°F). Precipitation is significantly higher in April, with 153 mm (6.0 in) falling over 14 days, compared to September’s 73 mm (2.9 in) over 10 days. Additionally, April's humidity is slightly higher at 80%, compared to September's 71%. For more detailed insights, you can check North Conway weather in April.

When comparing September and May weather, we see distinct differences in temperature and precipitation patterns. September boasts a broader temperature range, with minimums dropping to -3°C (27°F) and maximums reaching up to 30°C (86°F), resulting in an average of 15°C (59°F). In contrast, May's temperatures range from a minimum of -1°C (30°F) to a maximum of 31°C (89°F), with an average temperature of 12°C (54°F). Precipitation is slightly higher in May, totaling 97 mm (3.8 in) over 12 days, compared to September's 73 mm (2.9 in) over 10 days. Humidity levels are comparable, with both months hovering around 71% to 72%. For more details about May's weather specifics, you can check out North Conway weather in May.

In comparing the weather between September and June, we see notable differences in temperature and precipitation. September experiences a broader temperature range, with minimums dipping to -3°C (27°F) and maximums reaching up to 30°C (86°F), resulting in an average of 15°C (59°F). In contrast, June maintains generally warmer conditions, with minimum temperatures at 0°C (32°F) and maximums soaring to 33°C (92°F), yielding an average of 17°C (63°F). Precipitation is also higher in June, totaling 111 mm (4.4 in) over 11 days, compared to September's 73 mm (2.9 in) over 10 days. Humidity levels remain similar, with September at 71% and June at 72%. For more details on June weather, check out North Conway weather in June.

In comparing the weather between September and July, September experiences a wider temperature range, with minimums dropping to -3°C (27°F) and maximums reaching up to 30°C (86°F), resulting in an average temperature of 15°C (59°F). In contrast, July maintains milder temperatures, with minimums at 8°C (46°F) and maximums peaking at 33°C (92°F), yielding an average of 20°C (68°F). Precipitation levels also vary significantly; September sees 73 mm (2.9 in) over 10 days, while July has a notably higher total of 158 mm (6.2 in) across 13 days, making it the wetter month. Humidity levels are slightly higher in September at 71%, compared to 67% in July. For more detailed weather specifics, you can refer to North Conway weather in July.

In comparing the weather of September to August, we see a notable decline in average temperatures. September's average temperature is 15°C (59°F), significantly lower than August's average of 19°C (67°F). Additionally, September experiences a wider temperature range, with a minimum of -3°C (27°F) and a maximum of 30°C (86°F). On the other hand, August tends to be warmer overall, peaking at 32°C (90°F).

Precipitation also varies between the two months, with September receiving 73 mm (2.9 in) over 10 days compared to August's higher total of 107 mm (4.2 in) spread over 12 days. Interestingly, September has a higher humidity level at 71%, compared to August's 66%. For more details on August weather, you can check North Conway weather in August.

September tends to be warmer than October, with temperatures ranging from a chilly -3°C (27°F) to a balmy 30°C (86°F) and an average of 15°C (59°F). In contrast, October sees cooler temperatures, dipping to a minimum of -6°C (22°F) and averaging around 9°C (48°F), with a maximum of 26°C (79°F). Precipitation increases in October, accumulating to 155 mm (6.1 in) over 13 days, compared to September's 73 mm (2.9 in) over 10 days. Additionally, October brings slightly higher humidity levels, averaging 78% compared to September's 71%. For a closer look at the October climate specifics, check out North Conway weather in October.

In September, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 30°C (86°F), with an average of 15°C (59°F). This month experiences around 73 mm (2.9 in) of precipitation over about 10 days, and humidity levels sit at 71%. In contrast, November sees a significant drop in temperature, with minimums plummeting to -20°C (-4°F) and averages falling to just 1°C (33°F). Despite having a slightly higher precipitation level at 130 mm (5.1 in) over 11 days, November's humidity rises to 84%, creating a distinctly colder and damp atmosphere. For a closer look at November weather specifics, check North Conway weather in November.

The weather comparisons between September and December reveal dramatic shifts in temperature and conditions. In September, minimum temperatures dip to -3°C (27°F) while averaging a mild 15°C (59°F) and peaking at 30°C (86°F). This month experiences relatively moderate precipitation at 73 mm (2.9 in) over about 10 days, with humidity levels around 71%. In stark contrast, December brings much colder temperatures, with a minimum of -26°C (-15°F) and an average of -5°C (23°F), with highs reaching only 13°C (57°F). This winter month sees increased precipitation of 148 mm (5.8 in) over the same number of days, along with slightly higher humidity at 81%. For a closer look at the specifics of December weather, you can visit North Conway weather in December.

Compare North Conway's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in North Conway

As summer transitions into autumn, September in North Conway offers a delightful shift in weather, featuring cooler temperatures and a touch of crispness that sets the stage for the changing seasons. While warm days can still reach up to 30°C, the average feels much milder, allowing for pleasant outdoor activities amidst rich fall colors. However, the month does see increased humidity and some rainfall, with precipitation occurring on several days, making it distinct from the drier summer months. This balance of warmth and coolness creates an ideal atmosphere for enjoying the vibrant natural landscape. For more insights on what to expect throughout the year, explore North Conway Climate.