Last updated: February 24, 2025
In Orleans, United States, September welcomes transitioning weather characterized by a maximum temperature of 24°C (75°F) and an average of 19°C (66°F), offering pleasant days for outdoor activities. Evenings can be cooler, with minimum temperatures dropping to 13°C (56°F). This month typically sees 116 mm (4.6 in) of precipitation spread across approximately 10 days, contributing to the region’s lush landscapes. With an average humidity level of 75%, September in Orleans presents a balmy yet refreshing atmosphere, ideal for experiencing the charm of this coastal locale.
In September, Orleans experiences a delightful transition as summer gradually gives way to autumn. With minimum temperatures averaging around 13°C (56°F) and maximums reaching 24°C (75°F), the month strikes a harmonious balance between warmth and the crispness that marks the onset of fall. The average temperature of 19°C (66°F) provides a comfortable environment, perfect for outdoor activities and enjoying the vibrant autumn foliage. This trend of decreasing temperatures from the balmy summer months signals a cozy season ahead, inviting residents and visitors alike to relish the changing scenery and pleasant weather before the chill of winter sets in.
September brings a notable shift in precipitation patterns for Orleans, recording 116 mm (4.6 in) of rainfall over 10 days. This amount reflects a slight increase compared to the dry summer months of July and August, which averaged just 77 mm (3.0 in) and 83 mm (3.3 in), respectively. As autumn approaches, the advent of September's rains indicates a transition towards more frequent and substantial precipitation, setting the stage for the wetter months ahead, particularly October, which typically sees an average of 169 mm (6.7 in). This trend illustrates the shift from the summer drought-like conditions to a more balanced and moisture-rich environment, preparing Orleans for the upcoming seasonal changes.
In September, humidity in Orleans begins to mirror the slight drop seen throughout late summer, settling at a comfortable 75%. This marks a continuation of a gradual decline from spring's higher levels, starting at 84% in January and tapering down to 75% in both September and October. The transition into fall is characterized by less muggy conditions, inviting a refreshing change after the summer's peak humidity of 76% in both July and August. Overall, this trend signals a shift toward drier air as the region prepares for the cooler months ahead, with November seeing a slight uptick back to 80%.
September in Orleans sees a UV Index of 8, categorizing it as very high exposure, which means a burn can occur in just 15 minutes without adequate protection. This marks a slight decrease from the peak summer months of July and June, both at a UV Index of 10, yet it's still a reminder to stay vigilant as the autumn sun remains strong. As the summer transitions to fall, the UV Index begins to taper off, with October dropping to a high level of 6. This trend highlights the importance of sun safety throughout the year, especially during the high-index months. For more detailed information, visit Orleans UV Index.
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September in Orleans, United States, beautifully bridges the summer's warmth and the impending chill of autumn, boasting 280 hours of sunshine. This month continues the impressive trend established during the summer, with sunlight peaking in July at 344 hours and remaining strong through August's 331 hours. While September's sun hours see a decrease, they still offer abundant daylight, significantly higher than the early months of the year like January’s mere 136 hours and February’s 179 hours. This gradual decline marks a transition yet maintains a vibrant atmosphere, making September a delightful time to enjoy the outdoors before the shorter days of October set in. With each passing month, the sunlight tells a story of seasons changing, creating a rhythmic ebb and flow that enriches the charm of Orleans.
In Orleans, United States, September marks a notable transition in weather patterns, with a 51% chance of sunny days. This increase in sunshine is part of a broader trend where the late summer months, especially August and September, present relatively higher probabilities of clear skies compared to earlier months. Following a somewhat overcast summer, September's sunny disposition hints at a refreshing shift, as it rivals the drier conditions typically seen in spring. This makes the month an ideal time for outdoor activities, as residents can enjoy the warmth while basking in the sun more often than not.
As summer transitions into autumn in Orleans, September brings a moderate daylight duration of 12 hours, a gradual decline from the sun-soaked days of June and July, which bask in 15 and 14 hours of daylight respectively. This pattern continues as nature prepares for the cooler months, with October seeing a slight decrease to 11 hours. The shift from the longer summer days highlights a rhythm of seasonal change, where daylight ebbs and flows, allowing residents to enjoy a blend of extended evenings and earlier sunsets. As fall approaches, the gradual dimming reminds us of the cycles of light, setting the stage for the crisp and cozy days ahead.
As summer winds down in Orleans, September brings a gentle breeze with an average wind speed of 6.3 m/s (14 mph). This marks a slight increase from the stillness of July and August, when wind speeds dipped to their lowest points of 5.5 m/s (12 mph) and 5.1 m/s (12 mph), respectively. The transition into autumn signifies a resurgence in wind activity, with September's speeds beginning to climb back towards the averages seen earlier in the year, such as 7.1 m/s (16 mph) in April and 7.4 m/s (17 mph) in November. This gradual return of brisk breezes heralds the changing season, as Orleans prepares for the cooler, windier months ahead.
The weather in Orleans 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 Orleans and find detailed weather information for every month.
September and January present starkly contrasting weather conditions. In September, temperatures range from a minimum of 13°C (56°F) to a pleasant maximum of 24°C (75°F), with an average of 19°C (66°F), and humidity levels at 75%. The month also experiences a significant amount of precipitation, totaling 116 mm (4.6 in) over about 10 days. In contrast, January sees much colder temperatures, with lows plunging to -13°C (10°F) and a maximum of only 12°C (54°F), averaging just 2°C (37°F). Despite having slightly less total precipitation at 94 mm (3.7 in), January is characterized by higher humidity at 84%. For more details, you can check out Orleans weather in January.
September and February present strikingly different weather patterns. In September, temperatures range from a mild 13°C (56°F) at night to a comfortable 24°C (75°F) during the day, with an average of 19°C (66°F). However, this month also sees significant rainfall, accumulating to 116 mm (4.6 in) over about 10 days, and the humidity hovers around 75%. In contrast, February is much colder, with temperatures plummeting to a minimum of -11°C (12°F) and only reaching a maximum of 11°C (53°F), averaging just 2°C (37°F). Precipitation is slightly higher at 124 mm (4.9 in) over 12 days, but the humidity rises to 84%. For a closer look at the weather patterns specific to February, visit Orleans weather in February.
In comparing the weather of September and March, there is a stark contrast in temperature and conditions. September typically enjoys milder temperatures, with an average of 19°C (66°F) and highs reaching up to 24°C (75°F), accompanied by moderate humidity at 75%. In contrast, March is much cooler, featuring an average temperature of just 3°C (38°F), with lows plummeting to -8°C (18°F) and a maximum of 12°C (54°F). Despite both months experiencing similar levels of precipitation—approximately 116 mm (4.6 in) in September and 119 mm (4.7 in) in March—the overall feeling of March is distinctly colder, with humidity slightly higher at 82%. For more detailed insights, you can explore Orleans weather in March.
When comparing the weather in September and April, it’s clear that September enjoys milder temperatures, with average highs around 24°C (75°F) and lows of 13°C (56°F), making it generally more comfortable than April. In contrast, April experiences considerably cooler conditions, with average temperatures peaking at 14°C (57°F) and dipping as low as 1°C (33°F). Although September has slightly less precipitation at 116 mm (4.6 in) over about 10 days, it still feels relatively damp with a humidity level of 75%. April, on the other hand, has a higher total rainfall of 131 mm (5.1 in) spread across 14 days, contributing to a humidity level of 79%. For more details on weather patterns specific to April, check out this link: Orleans weather in April.
September and May showcase distinct weather patterns, with September generally warmer than May. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 24°C (75°F), boasting an average of 19°C (66°F). In contrast, May features cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 19°C (66°F), leading to an average of just 11°C (52°F). Precipitation levels are similar between the two months, with September receiving 116 mm (4.6 in) over approximately 10 days, while May experiences a slightly higher 121 mm (4.8 in) across 12 days. Despite these variances, both months maintain a consistent humidity level of 75%. For a closer look at May weather conditions in Orleans, you can refer to this link: Orleans weather in May.
When comparing the weather in September and June, we notice a slight increase in temperatures as September sees a minimum of 13°C (56°F) and a maximum of 24°C (75°F), while June has a minimum of 10°C (50°F) and a maximum of 22°C (73°F). The average temperature in September is also warmer at 19°C (66°F) compared to June's average of 16°C (61°F). Additionally, September experiences higher precipitation levels with 116 mm (4.6 in) over 10 days, compared to June's 88 mm (3.5 in) during the same number of days. Humidity levels are relatively similar, with September at 75% and June at 78%. For more detailed information about June weather, you can visit Orleans weather in June.
When comparing the weather in September and July, we find notable differences in temperature and precipitation. September offers a slightly cooler range, with minimum temperatures dipping to 13°C (56°F) and maximums reaching 24°C (75°F), contrasted with July's warmer minimum of 16°C (61°F) and a higher maximum of 26°C (79°F). Additionally, September experiences more rainfall, with a total of 116 mm (4.6 in) over 10 days, compared to July, which sees 77 mm (3.0 in) over just 8 days. Humidity levels remain relatively similar, at 75% in September and 76% in July. For more details on July's climate, you can check Orleans weather in July.
In comparison to August, September tends to be cooler with average temperatures dropping from 21°C (71°F) to 19°C (66°F). The maximum temperature in September is also lower, reaching only 24°C (75°F) compared to August's 26°C (78°F). Additionally, September experiences more rainfall, accumulating 116 mm (4.6 in) over about 10 days, whereas August sees less precipitation at 83 mm (3.3 in) over 8 days. Despite the slight increase in humidity, from 76% in August to 75% in September, the overall weather in September feels a bit more transitional as summer begins to give way to autumn. For more details, you can check out Orleans weather in August.
September typically boasts milder temperatures, with an average of 19°C (66°F) and maximums reaching up to 24°C (75°F), while October sees a noticeable drop in temperatures, averaging 15°C (59°F) and peaking at 21°C (70°F). Rainfall increases in October, totaling 169 mm (6.7 in) over 11 days compared to September's 116 mm (4.6 in) over 10 days. Despite the shift towards cooler and wetter conditions, both months maintain a consistent humidity level of 75%. For more specific insights into the October weather in Orleans, you can visit Orleans weather in October.
In September, the weather is generally warmer, with average temperatures around 19°C (66°F) and highs reaching up to 24°C (75°F). The month experiences a fair amount of rainfall, totaling 116 mm (4.6 in) over about 10 days, coupled with a humidity level of 75%. In contrast, November sees significantly cooler temperatures, with an average of 9°C (49°F) and maximums of 18°C (65°F), while the minimum can plummet to -6°C (21°F). Although there is slightly less precipitation at 106 mm (4.2 in), humidity levels rise to 80%, creating a more damp and chilly atmosphere. For a detailed overview, you can check out Orleans weather in November.
September and December present stark contrasts in weather conditions. September, with average temperatures ranging from a mild 13°C (56°F) to a warm 24°C (75°F), offers a more pleasant atmosphere, accompanied by moderate rainfall of 116 mm (4.6 in) over about 10 days and relative humidity around 75%. In contrast, December brings much cooler temperatures, with averages hovering around 5°C (41°F) and lows dipping to -10°C (14°F). The month also sees increased precipitation of 138 mm (5.4 in) over 12 days and higher humidity levels at 80%. These differences highlight the transition from the warmth of early autumn to the chill of midwinter. For more detailed information, check Orleans weather in December.
In September, Orleans experiences a shift as summer transitions into autumn, offering a pleasant blend of moderate temperatures and refreshing breezes. With an average temperature around 19°C (66°F), this month often feels more comfortable than the sweltering summer heat, though humidity remains relatively high at 75%. Precipitation is more frequent, with about 10 rainy days contributing to a total of 116 mm (4.6 in), making it one of the wetter months. This moisture not only enriches the landscape but also provides a vibrant backdrop for the stunning fall colors that start to emerge. For a deeper understanding of the climate variations throughout the year, check out Orleans Climate.