September Weather in La Quinta, United States

Last updated: February 24, 2025

September in La Quinta, United States, offers a warm and inviting climate for outdoor enthusiasts and sun-seekers alike. With a maximum temperature soaring to 45°C (114°F) and an average of 28°C (83°F), the month radiates heat, while night temperatures can dip to a comfortable minimum of 11°C (51°F). Rain is scarce, with just 4 mm (0.2 in) of precipitation accumulating over a single day, ensuring plenty of sunshine to soak up. Humidity levels hover around 52%, making this desert oasis a prime destination for those looking to escape the chill of fall elsewhere. Whether you're lounging by the pool or exploring the stunning landscape, September ushers in a perfect blend of warmth and dryness.

September Temperature in La Quinta

In September, La Quinta experiences a delightful transition as summer begins to ease its grip, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 45°C (114°F). The average temperature of 28°C (83°F) offers a perfect mix of warmth and comfort, ideal for outdoor activities or enjoying the vibrant local scenery. This month marks a peak in daytime heat, consistent with the overall trend of rising temperatures from the previous months, peaking in July and August. As the days gradually shorten and temperatures start to decline towards October, September stands out as a time to relish the fading summer warmth while anticipating the cooler autumn days ahead.

September Weather in La Quinta: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Quinta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535559687384898982716152
Data source: Temperature data for La Quinta 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 La Quinta

In La Quinta, September marks the transition into the autumn season, characterized by minimal rainfall, with the month typically receiving only 4 mm (0.2 in) of precipitation over just one day. This trend of scarce rainfall continues from the summer months, which see some of the lowest figures of the year, with July and August each recording only 10 mm (0.4 in) and 7 mm (0.3 in), respectively. As the year progresses into fall, precipitation levels gradually rise in October and November, hinting at a possible return of wetter conditions. Overall, the pattern clearly demonstrates La Quinta's dry, desert climate, with September standing out as a particularly arid month, paving the way for a drier October before the winter months bring increased precipitation once more.

September Precipitation Trends in La Quinta

The chart displays monthly precipitation patterns in La Quinta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2828191121107561027
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Quinta

In September, La Quinta experiences a noticeable uptick in humidity, with levels rising to 52%, a shift from the dry summer months of June to August, where humidity hovered around 46%. This transition marks the beginning of a more humid atmosphere as the region prepares to greet autumn. While the humidity is still relatively low compared to the wetter winter months, it sets the stage for the increase typical in the coming months like October and November. Overall, September’s humidity reflects a gradual return to the season's characteristic moisture, creating a comfortable balance for those enjoying the changing weather conditions.

September Average Humidity in La Quinta

This chart illustrates the average monthly humidity levels in La Quinta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec72%77%67%56%46%48%46%42%52%58%66%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Quinta

In September, La Quinta experiences a UV Index of 11, categorizing it as extreme and maintaining a burn time of just 10 minutes. This trend reflects the region's consistently high sun exposure throughout the summer months, which peaked in July and August with a UV Index of 12. As temperatures begin to cool in October, the UV Index drops to a very high level of 8, indicating a slight easing in sun intensity. Despite this, the sustained high UV levels from March through September highlight the importance of sun protection for residents and visitors alike. To better understand the UV Index and its implications for outdoor activity, visit La Quinta UV Index.

Maximum UV Index Levels in La Quinta for September

The chart shows the monthly maximum UV Index (UVI) for La Quinta 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.
JanFebMarAprMayJunJulAugSepOctNovDec469111212121111854
Data source: La Quinta 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 La Quinta

In La Quinta, United States, September often delights residents and visitors with its warm, sun-drenched days, boasting 324 hours of sunshine. This month marks a subtle shift in the seasonal rhythm, as the vibrant summer nearly comes to an end. Following the peak sunshine of July at 381 hours and August's generous 362 hours, September offers a softer glow, inviting outdoor enthusiasts to savor the lingering warmth before autumn sets in. As the year progresses, sunshine hours dip into the cooler months, with October bringing 303 hours and November sliding to 262 hours. This trend highlights September as a transitional gem, where the summer's brightness gradually yields to the charm of fall.

Monthly Sunshine Duration in La Quinta: September Highlighted

The September sunshine duration represents the total number of hours La Quinta 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.
JanFebMarAprMayJunJulAugSepOctNovDec196h252h304h331h375h377h381h362h324h303h262h233h
Data source: La Quinta September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Quinta During September

As summer transitions into fall, La Quinta, United States, enjoys a remarkable 87% chance of sunny weather in September, mirroring the brightness of August. This strong likelihood continues a trend seen throughout the late summer months, where residents and visitors alike can bask in the sun's warmth. Following a peak in May, which boasts an impressive 89%, September maintains a consistent level of sun, making it a fantastic time for outdoor activities. The sunny days begin to wane slightly in October, but September stands out as a golden opportunity to embrace the beautiful Californian sunshine before the cooler months set in. With clear skies likely, it's the perfect backdrop for all your late-summer adventures.

Percentage of Sunny Days in September in La Quinta

The chart illustrates the percentage of sunny days in La Quinta 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 La Quinta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec65%72%78%75%89%72%58%87%87%77%77%55%
Data source: La Quinta September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Quinta in September

As September unfolds in La Quinta, the days begin to shorten slightly, offering about 12 hours of daylight. This transition marks a subtle shift from the longer days of summer, which peak in June and July at a generous 14 hours. Following this high point, daylight duration gradually tapers off, with September's sunlight reminding residents of the impending arrival of autumn. October will continue this decline, as daylight drops to 11 hours. Overall, the progress through the year reveals a rhythmic ebb and flow of light, with each month contributing to the beautiful tapestry of seasonal change that characterizes this desert oasis.

Average Daylight Hours in La Quinta for September

The chart illustrates the variation in daylight duration in La Quinta throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 58m11h 59m13h 2m13h 55m14h 20m14h 6m13h 19m12h 19m11h 17m10h 23m9h 56m
Data source: La Quinta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in La Quinta

In September, La Quinta experiences a gentle average wind speed of 2.0 m/s (5 mph), marking a slight dip from the summer's breezier months. This transition reflects a broader trend as the year progresses; after an early peak in April and May at 2.7 m/s (6 mph), winds gradually recede, culminating in the calmness characteristic of late autumn. Interestingly, this consistent pattern illustrates the desert's tendency to offer a mild yet pleasant breeze during September, making it an ideal time for outdoor activities. As daylight wanes and temperatures begin to cool, the soft winds serve as a reminder of the changing seasons, inviting locals and visitors alike to soak in the tranquility of La Quinta's landscapes.

Average September Wind Speed in La Quinta

The chart displays monthly wind speed patterns in La Quinta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.82.12.52.72.72.42.12.22.0 m/s1.91.81.8
Data source: La Quinta September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in La Quinta Compares to Other Months

The weather in La Quinta 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 La Quinta and find detailed weather information for every month.

The weather in September and January shows a stark contrast, reflecting the transition from late summer to winter. September boasts a warm average temperature of 28°C (83°F), with maximums soaring to 45°C (114°F) and only minimal precipitation at 4 mm (0.2 in) over just one day, complemented by moderate humidity of 52%. In contrast, January experiences much cooler temperatures, averaging 12°C (53°F) with maximums reaching 26°C (79°F) and a significant increase in precipitation to 28 mm (1.1 in) across four days, alongside higher humidity levels of 72%. For more specifics on January weather conditions, you can refer to La Quinta weather in January.

Comparing the weather in September and February reveals stark contrasts. September boasts a warm average temperature of 28°C (83°F) with maximum highs reaching a sweltering 45°C (114°F), while February offers a much cooler climate, with average temperatures around 13°C (55°F) and maximums of 27°C (82°F). Precipitation also differs significantly; February experiences more rain, averaging 28 mm (1.1 in) over three rainy days, compared to September's minimal 4 mm (0.2 in) over just one day. Additionally, the humidity levels in February are notably higher at 77%, compared to September's 52%. For those looking to understand more about the February climate, check out La Quinta weather in February.

September and March present stark contrasts in weather patterns. In September, temperatures can soar, with a minimum of 11°C (51°F) leading up to a scorching maximum of 45°C (114°F), and the average temperature sits at a warm 28°C (83°F). In contrast, March offers a much cooler climate, with temperatures ranging from a chilly 1°C (33°F) to a pleasant maximum of 32°C (90°F), averaging around 15°C (60°F). Additionally, September experiences minimal precipitation with just 4 mm (0.2 in) over 1 day, while March sees more rainfall totaling 18 mm (0.7 in) across 3 days, reflecting the higher humidity of 67% compared to September's 52%. For more specifics, you can explore La Quinta weather in March.

In September, the weather is significantly warmer than in April, with average temperatures peaking at around 28°C (83°F) and soaring to a maximum of 45°C (114°F). In contrast, April sees milder conditions, featuring an average temperature of 20°C (68°F) and a maximum of 36°C (97°F). While both months experience limited precipitation, September is drier, with only 4 mm (0.2 in) of rainfall compared to April's 11 mm (0.4 in). Humidity levels are slightly lower in September at 52%, compared to April’s 56%, adding to the overall comfort of the warmer month. For more details on the specific weather patterns, you can find information at La Quinta weather in April.

In comparing September and May, one can observe distinct differences in the weather patterns. September boasts higher average temperatures, ranging from a minimum of 11°C (51°F) to a maximum of 45°C (114°F), making it a notably warmer month, particularly with an average of 28°C (83°F). In contrast, May features cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 39°C (103°F), averaging around 23°C (73°F). Both months experience low precipitation levels, but September receives slightly more rainfall, with 4 mm (0.2 in) over a single day of rain, whereas May is drier with only 2 mm (0.1 in) and no rainy days at all. Additionally, humidity levels are slightly higher in September at 52%, compared to 46% in May. For those interested in the specifics of May weather, you can find more details here: La Quinta weather in May.

In comparing the weather between September and June, both months feature warm temperatures and relatively low precipitation. September experiences a slightly wider temperature range with a minimum of 11°C (51°F) and a maximum of 45°C (114°F), while June has a minimum of 12°C (54°F) and peaks at 44°C (112°F). The average temperatures are quite similar, with September averaging 28°C (83°F) and June averaging 29°C (84°F). Additionally, September sees a touch more humidity at 52% compared to June's 48%, although both months have minimal rainfall, with September receiving 4 mm and June only 1 mm. Rain is less of a concern in June, with no precipitation days recorded, which is highlighted in this link: La Quinta weather in June.

In comparing the weather of September and July, September tends to feature milder temperatures with a minimum of 11°C (51°F) and an average of 28°C (83°F), while July starts off warmer, with a minimum of 18°C (64°F) and an average of 32°C (89°F). Although both months experience similar maximum temperatures, with September peaking at 45°C (114°F) and July reaching 44°C (112°F), September benefits from less precipitation at just 4 mm (0.2 in) compared to July's 10 mm (0.4 in). Additionally, September has a slightly higher humidity level at 52% compared to July's 46%. For a more detailed look at July conditions, you can explore La Quinta weather in July.

In comparing the weather of September to August, September offers a slightly cooler experience, with average temperatures dropping from 32°C (89°F) in August to 28°C (83°F). The maximum temperature in September also sees a decrease, reaching 45°C (114°F) compared to August's peak of 43°C (111°F). However, September has lower humidity at 52% versus August's 42%, which might make the heat feel more bearable despite the high temperatures. Additionally, precipitation in September is less frequent, with only 4 mm (0.2 in) compared to August’s 7 mm (0.3 in), both months experiencing rainfall on only 1 day. For more details on August weather, check out La Quinta weather in August.

September features warmer temperatures, with a minimum of 11°C (51°F) and an average high of 28°C (83°F), reaching extremes of 45°C (114°F). In contrast, October sees a notable drop in temperature, with a minimum of 5°C (41°F) and an average high of 21°C (71°F), peaking at 39°C (102°F). Both months experience minimal precipitation, but October has slightly higher rainfall at 6 mm (0.2 in) compared to September's 4 mm (0.2 in). Additionally, humidity increases from 52% in September to 58% in October. For more detailed insights, check out La Quinta weather in October.

September and November exhibit notable contrasts in weather. In September, the temperatures can soar with an average of 28°C (83°F) and maximums reaching up to 45°C (114°F), while the minimum temperature hovers around a mild 11°C (51°F). With just 4 mm (0.2 in) of precipitation over a single day, humidity remains relatively comfortable at 52%. In stark contrast, November features cooler conditions, with a significant drop in average temperature to 16°C (61°F) and maximums of 31°C (88°F). The minimum temperature in November can fall to 2°C (35°F). Precipitation increases slightly to 10 mm (0.4 in) but still only occurs on one day, with humidity rising to 66%. For more detailed weather information, you can check La Quinta weather in November.

September weather is characterized by significantly warmer temperatures, with averages reaching up to 28°C (83°F) and highs pushing as high as 45°C (114°F). In contrast, December brings a noticeable chill, with average temperatures dropping to 11°C (52°F) and a minimum of -1°C (31°F). While September is relatively dry with only 4 mm of precipitation over just one day, December experiences increased rainfall totaling 27 mm over three days, contributing to higher humidity levels of 74%. For more details on December weather in La Quinta, check out La Quinta weather in December.

Compare La Quinta's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in La Quinta

As summer begins to wane, September in La Quinta showcases a striking contrast to the hotter months that precede it. With average temperatures settling at a more pleasant 28°C (83°F), the month offers a welcome respite from the scorching highs that can reach up to 45°C (114°F). This transition is complemented by a modest drop in humidity to around 52%, creating comfortable evenings that invite outdoor activities. Additionally, the low precipitation of just 4 mm over a solitary day signifies that September is still predominantly dry, making it an ideal time for visitors to enjoy the stunning desert landscape. For a deeper understanding of what to expect throughout the year, check out the comprehensive overview at La Quinta Climate.