September Weather in Red Wing, United States

Last updated: February 24, 2025

In September, Red Wing, United States, experiences a dynamic weather transition, with maximum temperatures reaching 33°C (91°F) and an average of 18°C (64°F). As autumn approaches, nights can be brisk, dipping to a minimum of 2°C (36°F). The month also sees 109 mm (4.3 in) of precipitation spread over 9 days, resulting in an 81% humidity level that adds to the region's rich, vibrant atmosphere. Whether basking in warm days or enjoying the cooler evenings, September in Red Wing is a blend of comfortable warmth and refreshing rainfall, setting the stage for the upcoming fall foliage.

September Temperature in Red Wing

As September arrives in Red Wing, United States, the temperatures exhibit a welcoming transition, offering a refreshing contrast to the sultry summer months. With a minimum of 2°C (36°F) and a pleasant average of 18°C (64°F), the air turns crisp, inviting outdoor activities and scenic walks. Residents and visitors enjoy maximum daytime highs reaching up to 33°C (91°F), reminiscent of summer's warmth, while evenings hint at the cooler autumn ahead. Overall, September marks a delightful midpoint, as the town shakes off summer's heat and prepares for the chillier days of October, showcasing the stunning interplay of seasonal change.

September Weather in Red Wing: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Red Wing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec171834445971747064483424
Data source: Temperature data for Red Wing 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 Red Wing

In September, Red Wing experiences a notable shift in precipitation patterns, recording 109 mm (4.3 in) over 9 days of rainfall. This marks a continuation of the wetter months that began in May, but with a slight decrease compared to August's 125 mm (4.9 in). The month’s steady rainfall plays a crucial role in replenishing local water sources as summer transitions to fall. Interestingly, while September sees less precipitation than its summer predecessors, it still maintains a consistent level of moisture, crucial for supporting the region's vibrant autumn landscape. As the leaves begin to change, the balance of rain and dry days sets the stage for the cooler months ahead.

September Precipitation Trends in Red Wing

The chart displays monthly precipitation patterns in Red Wing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec344459911481321061251091024249
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Red Wing

In September, Red Wing, United States experiences a humidity level of 81%, aligning with the slightly elevated levels seen throughout the summer months. This consistent humidity, while lower than the year's peak in February (90%), reflects a transition as the sweltering days of summer give way to the crispness of autumn. Notably, as September progresses, humidity levels remain steady, consistent with surrounding months like July and August. As fall approaches, residents can expect a gradual increase in humidity once again by November, with levels rising to 88%. Overall, September's humidity serves as a reminder of the region's moderate summer weather while hinting at the shifts autumn will bring.

September Average Humidity in Red Wing

This chart illustrates the average monthly humidity levels in Red Wing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Red Wing

As summer transitions to fall, the September UV Index in Red Wing, United States, settles at a moderate level of 7, indicating a high exposure category with a burn time of approximately 25 minutes. This decrease from the intense months of June through August reflects the gradual waning of summer sun intensity. While still requiring caution, September's sun is notably less demanding than the sweltering UV Index readings of 9 and 10 seen earlier in the summer months. As you enjoy the crisp autumn air and the vibrant foliage, it's essential to stay mindful of sun safety to maximize your outdoor adventures. For more information on UV levels throughout the year, visit Red Wing UV Index.

Maximum UV Index Levels in Red Wing for September

The chart shows the monthly maximum UV Index (UVI) for Red Wing 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: Red Wing 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 Red Wing

As autumn descends upon Red Wing in September, residents enjoy a bountiful 256 hours of sunshine, marking a peak in daylight that reflects the lingering warmth of summer. This month stands out as a transition point, arriving after the sunniest months of June and July, which boast a remarkable 336 and 362 hours respectively. Although September witnesses a slight decline from the summer heights, its hours of sunlight remain substantial compared to earlier months, such as January and November, which struggle with only 129 and 178 hours. This trend highlights the gradual shift from the vibrant summer season towards the cooler embrace of fall, with October's sunnier days yet to come as daylight begins to wane.

Monthly Sunshine Duration in Red Wing: September Highlighted

The September sunshine duration represents the total number of hours Red Wing 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.
JanFebMarAprMayJunJulAugSepOctNovDec129h201h228h226h277h336h362h320h256h197h178h168h
Data source: Red Wing September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Red Wing During September

In September, Red Wing enjoys a notable increase in sunny weather, with a 62% likelihood of sunshine, mirroring the vibrant optimism of summer's end. This promising streak follows an already sunny August, which holds a 59% chance, hinting at a smooth transition into autumn. Interestingly, this month ties with June for the highest probability of sun, suggesting that as the warm summer days begin to wane, residents and visitors can still relish the golden hues of early fall. Overall, September stands out as a delightful time to bask in the outdoors, making it an ideal month for outdoor activities and adventures in Red Wing.

Percentage of Sunny Days in September in Red Wing

The chart illustrates the percentage of sunny days in Red Wing 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 Red Wing experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%32%45%31%40%62%56%59%63%44%39%30%
Data source: Red Wing September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Red Wing in September

As September unfolds in Red Wing, the days gradually begin to shorten, offering 12 hours of daylight—a gentle transition from the vibrant summer months. Following the peak of 15 hours in June and July, the daylight hours start their slow descent, mirroring nature's shift towards autumn. By the end of September, the days become noticeably shorter, hinting at the crispness of October, which will further reduce daylight to 10 hours. This gradual ebb of daylight serves as a reminder of the cyclical beauty of the seasons, inviting residents to savor the rich hues of fall before winter's early evenings take hold.

Average Daylight Hours in Red Wing for September

The chart illustrates the variation in daylight duration in Red Wing throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 15m10h 27m11h 57m13h 30m14h 49m15h 29m15h 7m13h 56m12h 27m10h 55m9h 33m8h 52m
Data source: Red Wing daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Red Wing

In Red Wing, United States, September ushers in a refreshing shift, with average wind speeds reaching 3.4 m/s (8 mph). This marks a slight uptick from the summer months, where the winds were relatively gentle, especially in July, which recorded its lowest speed at 2.6 m/s (6 mph). As autumn approaches, the winds begin to strengthen, setting the stage for the breezier conditions typical of the fall season. Interestingly, September's winds are not only a precursor to the more robust gusts of November, which boast an average of 4.0 m/s (9 mph), but also serve to invigorate the landscape as it transitions from the warmth of summer. Overall, September stands out as a time of dynamic change, characterized by an increase in wind activity that harmonizes with the vibrant seasonal shifts.

Average September Wind Speed in Red Wing

The chart displays monthly wind speed patterns in Red Wing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.23.93.53.53.12.63.03.4 m/s3.34.03.9
Data source: Red Wing September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Red Wing Compares to Other Months

The weather in Red Wing 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 Red Wing and find detailed weather information for every month.

In September, the weather is more temperate, with average temperatures hovering around 18°C (64°F), peaking at a warm 33°C (91°F) and only dipping to a minimum of 2°C (36°F). This month also sees substantial rain, amounting to 109 mm (4.3 in) of precipitation over 9 days, combined with a humidity level of 81%. In stark contrast, January brings frigid conditions, where temperatures can plummet to as low as -33°C (-28°F), with an average of -8°C (17°F) and a maximum of 8°C (46°F). This month is much drier, experiencing only 34 mm (1.3 in) of precipitation over 5 days, but the humidity increases slightly to 87%. The drastic differences in temperature and precipitation highlight the seasonal shift from the warm, rainy days of September to the harsh, cold conditions of January. For more specific details about the weather during this bitterly cold month, check out Red Wing weather in January.

In comparing the weather of September and February, a stark contrast emerges. September boasts a much warmer climate, with temperatures ranging from a chilly 2°C (36°F) to a toasty 33°C (91°F) and an average of 18°C (64°F). Humidity is fairly high at 81%, and the month experiences about 109 mm (4.3 in) of precipitation over roughly 9 days. In sharp contrast, February plunges into frigid temperatures, with a minimum of -34°C (-29°F) and an average temperature of -8°C (18°F), peaking at just 16°C (60°F). The humidity is slightly higher at 90%, but the month is characterized by significantly less precipitation—only 44 mm (1.7 in) over 6 days. For more details on February weather, you can visit Red Wing weather in February.

When comparing the weather in September and March, one can observe a significant contrast in temperatures and precipitation. September boasts much milder conditions, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 33°C (91°F), while experiencing higher humidity at 81%. In contrast, March presents a much colder climate, with temperatures dipping as low as -25°C (-12°F) and peaking at 21°C (70°F), alongside a slightly lower humidity level of 85%. Precipitation in September is more substantial at 109 mm over 9 days, compared to March’s 59 mm over just 7 days. For more specific insights about March weather, check out Red Wing weather in March.

September and April present distinct weather profiles, with September enjoying warmer temperatures, averaging 18°C (64°F) and reaching highs of 33°C (91°F). In contrast, April's average temperature is notably cooler at 6°C (44°F), with maximums reaching only up to 28°C (82°F). Both months experience a fair amount of precipitation, but September has a bit more, with 109 mm (4.3 in) compared to April's 91 mm (3.6 in), making it slightly wetter despite one less rainy day in April. Humidity levels are relatively similar, with September at 81% and April slightly higher at 84%. For a more detailed look at the weather conditions in April, you can check Red Wing weather in April.

In comparing the weather of September and May, we see distinct differences in temperature and precipitation patterns. September boasts a wider temperature range with minimums around 2°C (36°F) and maximums reaching up to 33°C (91°F), leading to an average of 18°C (64°F). Conversely, May starts a bit cooler with a minimum of 0°C (32°F) and averages 15°C (59°F), although it can peak at an impressive 36°C (97°F). Precipitation in May is also higher, totaling 148 mm (5.8 in) over 14 days compared to September's 109 mm (4.3 in) over 9 days, indicating a wetter month overall. Humidity levels are relatively similar, with September at 81% and May at 78%. For a more detailed look at May weather, you can explore Red Wing weather in May.

In comparing the weather of September and June, September experiences a wider temperature range, with a minimum of 2°C (36°F) and a maximum of 33°C (91°F), while June has a more moderate range from 8°C (46°F) to 35°C (95°F). June tends to be slightly warmer on average, with an average temperature of 22°C (71°F) compared to September's 18°C (64°F). While September has less rainfall with 109 mm (4.3 in) over 9 days, June is wetter, receiving 132 mm (5.2 in) over 13 days, making it a more humid month overall at 80% compared to September's 81% humidity. For more insights into the specifics of June weather, you can visit Red Wing weather in June.

In comparing the weather of September and July, notable differences and similarities emerge. September experiences a wider temperature range, with minimums dropping to 2°C (36°F) and maximums reaching up to 33°C (91°F), resulting in a comfortable average of 18°C (64°F). In contrast, July has milder minimum temperatures at 13°C (55°F) and a higher average of 23°C (74°F), peaking at 35°C (95°F). Both months see comparable precipitation, with September recording 109 mm over 9 days and July slightly lower at 106 mm over 10 days. Humidity remains constant at 81% for both months, making for a similarly humid experience. For more details on July weather, visit Red Wing weather in July.

In comparing the weather of September to August, September typically experiences a wider temperature range with minimums dropping to 2°C (36°F) and an average of 18°C (64°F), while August's minimum is notably warmer at 10°C (51°F) with an average of 21°C (71°F). Both months share the same maximum temperature of 33°C (91°F), but September tends to be slightly wetter, receiving 109 mm (4.3 in) of precipitation over 9 days compared to August's 125 mm (4.9 in) across 11 days. Interestingly, humidity levels remain constant at 81% for both months. For a closer look at the specifics of August weather, you can visit Red Wing weather in August.

September and October present a notable shift in weather conditions. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 33°C (91°F), with an average temperature of 18°C (64°F). The month experiences some rainfall, totaling 109 mm (4.3 in) over 9 days, and a humidity level of 81%. Conversely, October sees a drop in average temperature to 9°C (49°F), with minimums plunging to -8°C (18°F) and maximums reaching 29°C (85°F). Precipitation decreases slightly to 102 mm (4.0 in) across 12 days, while humidity rises slightly to 84%. For more detailed information, you can check Red Wing weather in October.

In September, the weather is significantly warmer, with average temperatures around 18°C (64°F) and highs reaching up to 33°C (91°F). This month experiences about 109 mm (4.3 in) of precipitation over approximately nine days, coupled with a humidity level of 81%, creating a muggy atmosphere. In contrast, November ushers in much colder conditions, with an average temperature dropping to 1°C (34°F) and nights plummeting to as low as -16°C (4°F). Although total precipitation decreases to 42 mm (1.6 in) over eight days, the humidity rises slightly to 88%, which can make the cold feel even more biting. For a more detailed look at November's climate, check out Red Wing weather in November.

The weather in September is characterized by a broader temperature range, with minimums of 2°C (36°F) and highs reaching up to 33°C (91°F), accompanied by heavy precipitation totaling 109 mm (4.3 in) over about 9 days. In contrast, December experiences much colder temperatures, with minimums plummeting to -28°C (-19°F) and averaging around -4°C (25°F), while maximums reach a milder 16°C (62°F). Additionally, December sees significantly less precipitation at 49 mm (1.9 in) over just 7 days, alongside a slightly higher humidity level of 84%. For more insights on specific conditions during this winter month, check out Red Wing weather in December.

Compare Red Wing's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Red Wing

As September unfolds in Red Wing, it marks a gentle transition from the summer heat to the cooler embrace of autumn. While the month can still boast warm days reaching up to 33°C, the average temperature settles at a mild 18°C, offering a pleasant respite. Unlike the sweltering summer months, September experiences increased humidity levels at 81% and more frequent rainfall, with about 9 days of precipitation totalizing 109 mm. This unique blend of warmth and moisture sets the stage for vibrant fall foliage, making it a captivating time to experience the changing landscape. To learn more about what to expect throughout the year, check out Red Wing Climate.