Last updated: February 24, 2025
In September, Rancho Mirage experiences warm and inviting weather, with a maximum temperature soaring to 43°C (110°F) and an average of 26°C (79°F). Nighttime temperatures are cooler, dipping to a pleasant minimum of 9°C (49°F). The month is typically dry, with only 5 mm (0.2 in) of precipitation across the rare one rainy day, providing a respite from the desert heat. Additionally, humidity levels hover around 52%, contributing to a comfortable atmosphere for both residents and visitors alike. Enjoy the sunny days and clear skies that characterize this vibrant desert oasis!
In September, Rancho Mirage experiences a transition from the intense heat of summer to the more tempered autumn. Temperatures begin to cool slightly with minimums averaging around 9°C (49°F), providing a refreshing contrast to the sweltering days. The average temperature settles at a pleasant 26°C (79°F), making it an ideal time for outdoor activities. However, the month retains hints of summer's intensity, with maximum temperatures soaring up to 43°C (110°F), ensuring that the sweltering desert sun is still in full swing. This blend of warm days and cooler nights creates a captivating climate that encourages both relaxation and adventure in the picturesque surroundings of Rancho Mirage.
In September, Rancho Mirage experiences a notable lull in precipitation, with only 5 mm (0.2 inches) recorded over just one day. This marks a continuation of the typically dry summer months, as rainfall diminishes significantly following the brief showers of July and August. The slight uptick in precipitation in October suggests a gradual transition towards the wetter months, but by September, the region is well accustomed to its predominantly arid climate. This trend underscores the desert's characteristic dryness during late summer and early fall, a pattern that residents and visitors alike come to expect in this sun-soaked locale.
In September, the humidity in Rancho Mirage begins to rise slightly, settling at 52% after a series of consistently lower levels during the summer months. Following the peaks seen in the winter and early spring, which average between 72% to 77%, the trend shows a clear dip from May to August, where humidity hits a low of 42%. However, as the season transitions into fall, September marks a shift towards increased moisture, hinting at the gradual return of wetter conditions. This uptick can be seen as a precursor to the more humid months ahead, particularly in October, when levels increase further to 58%, signaling the start of a new climatic rhythm in this desert oasis.
As summer wanes, September in Rancho Mirage continues to promise intense sun exposure, maintaining an UV Index of 11, which fall under the extreme category. This is a slight decrease from the previous month but still indicates that sun safety is essential, as burn time remains as low as 10 minutes for unprotected skin. Following a trend of high UV levels from May through September, it’s crucial to stay vigilant about sun protection even as fall approaches. Whether you're hitting the pool or enjoying the outdoors, be sure to stay informed and protected against the sun's rays. For a detailed look at the UV Index throughout the year, visit Rancho Mirage UV Index.
UV Risk Categories
In September, Rancho Mirage continues to bask in the glow of 324 hours of sunshine, marking a slight dip from the summer peak of 381 hours in July. As the warm days of summer transition to the more moderate temperatures of fall, the city still enjoys a generous amount of sunlight, contributing to its vibrant outdoor lifestyle. The trend of consistently increasing sunlight from January's 196 hours to May's high of 375 hours showcases the region's appeal for sun-seekers. Even as summer wanes, September retains ample sunshine, offering residents and visitors alike the perfect opportunity to savor the beauty of nature before autumn sets in.
In Rancho Mirage, September stands out with an impressive 87% chance of sunny weather, tying with August as the sunniest month of the year. As the summer heat begins to wane, this delightful transition keeps the area bathed in sunshine, making it a popular time for outdoor activities. Observing a consistent upward trend throughout the warmer months, the likelihood of clear skies peaks before dipping slightly in October. This sustained sunshine not only enhances the desert landscape's allure but also invites visitors to revel in the vibrant atmosphere of the desert oasis during late summer's tail end.
As September unfolds in Rancho Mirage, the sun graces the day with 12 hours of daylight, marking a gentle transition from the long, bright days of summer. After basking in as much as 14 hours of daylight during the peak of June and July, the region begins to see a gradual reduction in sunlight. This month sits comfortably between the vibrant summer months and the shorter days of fall, reflecting the shifting seasons. As daylight decreases, so too do the temperatures, creating a perfect backdrop for enjoying the golden hues of autumn. The trend shows a consistent ebb in daylight from summer's peak, hinting at the cozy changes that October will bring with its 11 hours of daylight.
As September arrives in Rancho Mirage, a gentle breeze can often be felt, with an average wind speed of 2.2 m/s (5 mph) marking a slight uptick from the summer months. The winds, consistent yet mild, provide a perfect backdrop to the stunning desert landscape, making outdoor activities enjoyable. While the winds are not at their highest, they maintain a steady presence, echoing the gradual transition into autumn. This subtle increase is a continuation of a trend seen throughout the late summer, as September's wind speed mirrors the light breezes of August and prepares the way for the slightly calmer conditions of October. With each gust, residents and visitors alike can appreciate the refreshing shift in air, adding to the charm of this serene desert oasis.
The weather in Rancho Mirage 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 Rancho Mirage and find detailed weather information for every month.
September and January present stark contrasts in weather. In September, temperatures soar, ranging from a minimum of 9°C (49°F) to a maximum of 43°C (110°F), with an average of 26°C (79°F) and very little precipitation—only 5 mm (0.2 in) over just one day. The humidity sits at a moderate 52%, creating a warm and dry atmosphere. In contrast, January experiences much cooler conditions, with temperatures dipping as low as -2°C (29°F) and averaging 11°C (51°F), peaking at 25°C (77°F). This month sees increased precipitation at 37 mm (1.5 in) over four days, alongside higher humidity levels of 72%. These differences make September a hot and dry month, while January tends to be cool and wetter, as detailed further in Rancho Mirage weather in January.
September and February present strikingly different weather patterns. In September, temperatures can range from a minimum of 9°C (49°F) to a scorching maximum of 43°C (110°F), with an average temperature of 26°C (79°F). This month sees minimal rain, with only 5 mm (0.2 in) of precipitation over just one day and a humidity level of 52%. In stark contrast, February experiences much cooler temperatures, with a minimum of -4°C (26°F) and an average of 11°C (52°F), while reaching a maximum of 26°C (79°F). This winter month brings a higher precipitation level of 41 mm (1.6 in) over five days and a significant rise in humidity to 77%. For more details, you can check Rancho Mirage weather in February.
September and March present distinct weather patterns in Rancho Mirage. September boasts warmer temperatures, with averages ranging from a minimum of 9°C (49°F) to a scorching maximum of 43°C (110°F), while experiencing low precipitation of just 5 mm over a single day and moderate humidity at 52%. In contrast, March features significantly cooler conditions, with temperatures ranging from a chilly -1°C (31°F) to a pleasant maximum of 30°C (87°F). This month sees more rainfall, totaling 26 mm spread over five days, and higher humidity levels at 67%. For a detailed look at March weather specifics, you can visit Rancho Mirage weather in March.
In September, the weather is characterized by warmer temperatures, with average highs reaching up to 43°C (110°F) and minimal precipitation of just 5 mm (0.2 in) over a single day. The humidity is moderate at 52%, creating a hot and dry atmosphere. In contrast, April experiences cooler temperatures, with an average high of 34°C (94°F) and slightly more precipitation at 15 mm (0.6 in) over two days. The humidity in April is slightly higher at 56%, contributing to a more comfortable but still warm spring environment. For more detailed information, you can check out Rancho Mirage weather in April.
When comparing the weather in September and May, September tends to be much warmer overall, with average temperatures reaching 26°C (79°F) and maximums soaring up to 43°C (110°F). In contrast, May offers milder conditions with an average of 20°C (69°F) and a maximum of 39°C (102°F). Humidity levels are slightly higher in September at 52%, compared to 46% in May. Both months see minimal rainfall, with just 5 mm in September over one day and 4 mm in May with no rainy days reported. For a detailed look at May weather, visit Rancho Mirage weather in May.
When comparing the weather in September and June, both months showcase a similar average temperature of around 26°C (79°F), making them quite pleasant. September, however, exhibits a wider range with a minimum of 9°C (49°F) and a maximum soaring up to 43°C (110°F), while June has a slightly higher minimum of 10°C (50°F) and a max of 43°C (109°F). In terms of precipitation, September sees 5 mm over one day, whereas June enjoys drier conditions with only 2 mm of rain and no precipitation days at all. Humidity levels are also slightly different, with September at 52% and June at 48%. For a closer look at the June weather specifics, check out Rancho Mirage weather in June.
In comparing the weather patterns of September and July, July tends to be slightly warmer overall, with an average temperature of 30°C (86°F) compared to September's average of 26°C (79°F). However, September can experience higher temperature extremes, reaching a maximum of 43°C (110°F), just above July's peak of 42°C (107°F). Precipitation levels are also noteworthy; while July sees 11 mm (0.4 in) over two days, September is drier with only 5 mm (0.2 in) occurring on a single day. Humidity levels are somewhat higher in September at 52% compared to July's 46%. For a detailed look at July's climate specifics, you can visit Rancho Mirage weather in July.
In comparing the weather between August and September, we see a notable shift in temperatures and humidity levels. August boasts a higher minimum temperature of 16°C (62°F) and an average temperature of 29°C (85°F), making it feel quite warm overall. In contrast, September features a lower minimum of 9°C (49°F) but an average temperature of 26°C (79°F). The maximum temperature remains similar, with September reaching 43°C (110°F) and August slightly lower at 42°C (107°F). Additionally, precipitation is slightly reduced in September, with only 5 mm (0.2 in) of rain over one day, compared to 8 mm (0.3 in) over two days in August. September also has a bit more humidity at 52%, while August is drier at 42%. For more detailed insights, check Rancho Mirage weather in August.
September typically offers a warmer climate, with average temperatures reaching up to 26°C (79°F) and highs soaring to 43°C (110°F). The month experiences low precipitation, with only about 5 mm (0.2 in) over just one day, while humidity remains moderate at 52%. In contrast, October sees a noticeable drop in temperatures, with averages falling to 20°C (68°F) and highs reaching 37°C (99°F). The month is slightly wetter, accumulating 8 mm (0.3 in) of precipitation over two days and experiencing a slight increase in humidity to 58%. For more detailed information, you can visit Rancho Mirage weather in October.
In September, the weather is characterized by much warmer temperatures, with a minimum of 9°C (49°F) and an average reaching up to 26°C (79°F), occasionally peaking at a scorching 43°C (110°F). The month experiences minimal precipitation, averaging only 5 mm (0.2 in) over just one day, and a humidity level of 52%. In contrast, November brings cooler conditions, with temperatures dropping to a minimum of 0°C (33°F) and an average of 15°C (59°F), reaching a maximum of 29°C (85°F). This month sees increased precipitation of 16 mm (0.6 in) over two days and higher humidity at 66%. For more detailed insights, you can explore Rancho Mirage weather in November.
September and December display stark contrasts in weather. In September, temperatures soar with a minimum of 9°C (49°F) and an average reaching up to 26°C (79°F), peaking at a sweltering 43°C (110°F). The month is relatively dry, experiencing only 5 mm (0.2 in) of precipitation over a single day and humidity levels at 52%. In contrast, December brings much cooler conditions with temperatures dipping as low as -1°C (30°F) and averaging 10°C (51°F), while the maximum temperature stands at 24°C (76°F). This month is significantly wetter, accumulating 37 mm (1.4 in) of precipitation across four days, alongside higher humidity at 74%. For more detailed insights, visit Rancho Mirage weather in December.
September in Rancho Mirage offers a unique transition from the sweltering peak of summer to the mildness of autumn. With maximum temperatures soaring but moderating to an average that feels pleasantly warm, this month presents a welcome relief from the extreme heat often experienced in July and August. The minimal precipitation and low humidity ensure that the days remain dry, making it ideal for outdoor activities. If you're seeking to embrace this balmy climate, check out more on Rancho Mirage Climate for further insights.