Last updated: April 22, 2025
September in Cabo San Lucas, Mexico, offers an inviting climate characterized by maximum temperatures reaching 31°C (88°F) and a comfortable average of 27°C (81°F). As the summer wanes, the atmosphere remains humid at 74%, creating a tropical feel. However, travelers should be prepared for some rain, with 125 mm (4.9 in) of precipitation spread across 13 days. Despite the occasional showers, the warm weather and vibrant surroundings make September a delightful time to experience this picturesque coastal paradise.
In September, Cabo San Lucas experiences warm and inviting temperatures that set the stage for a perfect getaway. With minimums around 23°C (74°F) and averages reaching 27°C (81°F), the early fall warmth is palpable, allowing for delightful beach days and vibrant sunsets. As summer gradually transitions into autumn, the maximum temperatures peak at 31°C (88°F), showcasing the region's enticing climate. This month marks the tail end of the hottest period, with the heat still lingering but beginning to mellow, making it an appealing time to soak up the sun and enjoy the breathtaking scenery before the cooler months arrive.
In Cabo San Lucas, September marks a significant shift in precipitation patterns, bringing a dramatic rise in rainfall compared to the drier months earlier in the year. This month sees an impressive 125 mm (4.9 in) of rain, falling over 13 days, making it the wettest month of the year. The transition from the arid summer months, where rainfall is sparse, to the lush, rain-laden September creates a vibrant contrast, as the region receives more than double the rainfall of August, which itself recorded 87 mm (3.4 in). This surge in precipitation not only nourishes the landscape but also signals the onset of the tropical rainy season, invigorating the local flora and providing a refreshing backdrop for visitors seeking a different side of Cabo's beauty.
As September rolls into Cabo San Lucas, Mexico, the humidity begins to rise, peaking at 74%. This marks a notable increase from the more temperate months earlier in the year, where humidity levels hovered around 64% to 69% from January to May. The summer months bring a gradual ascent, with July and August experiencing 72% and 73% respectively. Following September, October maintains a higher humidity level at 75%, suggesting that visitors can expect a sultry atmosphere as the region transitions into fall. Overall, while Cape San Lucas typically enjoys a dry climate, September's humidity signals the lingering warmth of summer and the onset of the lush, tropical vibes that characterize the region as it moves into autumn.
In Cabo San Lucas, the UV Index exhibits a notable trend of intensity throughout the year, particularly reaching its peak during the spring and summer months. By September, the UV Index maintains a significant level of 12, categorizing it as extreme with a burn time of just 10 minutes—a continuation of the high levels experienced in the preceding months. This indicates that exposure to the sun can be particularly dangerous, underscoring the importance of sun protection during this period. Travelers should remain vigilant, as the consistent threat of extreme UV levels not only persists into October but has already been a hallmark of the summer. For more details on the UV Index and to plan accordingly, visit Cabo San Lucas UV Index.
UV Risk Categories
September in Cabo San Lucas offers a delightful transition from the summer heat, providing an inviting 295 hours of sunshine. This month, while experiencing a slight decline from the sun-soaked 356 hours of May, still bathes the coastline in pleasant warmth, making it a fantastic time for beachgoers and adventure seekers alike. As the vibrant summer crowds start to dwindle, the sun remains generous, ensuring plenty of opportunities for outdoor exploration. In comparison to the earlier months, September strikes a balance, inviting visitors to relish the soft glow of autumn while enjoying the beautiful landscapes that define this stunning region. With the days getting slightly shorter yet still filled with abundant sunshine, it's a perfect time to experience Cabo San Lucas at a leisurely pace.
In Cabo San Lucas, Mexico, the likelihood of sunny weather in September stands at 61%, marking a favorable shift after the cloudier months of August with only 33% sunshine. Following a trend of relatively sunny weather through the spring and early summer, September maintains a balance of clear skies as it transitions into the fall. With higher chances of sunshine than both November and December, September is an appealing option for travelers seeking warm, sunny days before the year ends. This month's weather builds on the late summer sun, offering a pleasant atmosphere for those looking to enjoy all that this beautiful destination has to offer.
In Cabo San Lucas, Mexico, the delightful transition of daylight duration unfolds throughout the year, reaching a perfect balance by September. This month offers about 12 hours of sunlight, mirroring the longer days of late spring and early summer. As the year progresses from January's modest 10 hours to the peak of 13 hours in May through July, Cabo experiences a gradual increase in daylight that invites outdoor adventures and beach relaxation. Following August, which also enjoys 12 hours of daylight, September signals the onset of shorter days, with October beginning to edge back towards the 11 hours of light typical in the fall. This cyclical pattern emphasizes the region's allure, where sun-soaked days are consistently celebrated, making it a year-round destination for sun seekers and nature lovers alike.
As September approaches in Cabo San Lucas, the average wind speed settles at a delightful 3.8 m/s (9 mph), offering a gentle breeze that invites outdoor adventures. This month marks a slight increase from the calmer summer winds, with a notable peak in May at 4.8 m/s (11 mph). Interestingly, the winds begin to taper off as the year progresses, descending to a serene 2.8 m/s (6 mph) by December. With September’s pleasant winds, it's the perfect time for beachgoers and water sports enthusiasts to revel in the refreshing air before the winds dial back for the cooler months.
The weather in Cabo San Lucas 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 Cabo San Lucas and find detailed weather information for every month.
September and January present contrasting weather patterns in Cabo San Lucas. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an average of 27°C (81°F). The month also sees higher humidity levels at 74% and significant rainfall, with 125 mm (4.9 in) of precipitation spread over 13 days. In contrast, January offers a cooler climate, with temperatures ranging from 14°C (58°F) to 28°C (83°F) and an average temperature of 21°C (69°F). This month is characterized by much drier conditions, featuring only 4 mm (0.2 in) of precipitation and no rainy days, along with lower humidity at 69%. For more detailed information, you can check out Cabo San Lucas weather in January.
September and February showcase a striking contrast in weather conditions. In September, temperatures are notably warmer, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at 31°C (88°F). This month also brings considerable rainfall, averaging 125 mm (4.9 in) over about 13 days, and a higher humidity level of 74%. In contrast, February experiences cooler temperatures, with a minimum of 13°C (56°F) and an average of 20°C (68°F), reaching a maximum of 26°C (80°F). This month is much drier, with only 13 mm (0.5 in) of precipitation occurring just once, and humidity levels are lower at 66%. For more details, check out Cabo San Lucas weather in February.
September and March showcase distinct weather patterns, highlighting the transition from late summer to early spring. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an average of 27°C (81°F). This month is notably wetter, experiencing 125 mm (4.9 in) of precipitation over 13 days, and an average humidity of 74%. Conversely, March presents milder conditions, featuring temperatures that fluctuate between 15°C (59°F) and 27°C (82°F), with an average of 21°C (70°F). The month is characterized by exceptionally low precipitation, registering only 1 mm (0.0 in) across zero days of rainfall, and a more comfortable humidity level of 64%. For more detailed information, you can check Cabo San Lucas weather in March.
September and April present quite contrasting weather conditions. In September, temperatures are notably warmer, with average highs reaching 31°C (88°F) and significant humidity levels around 74%. This month also sees considerable rainfall, with about 125 mm (4.9 in) of precipitation over 13 days, making it a wet period. In contrast, April offers much milder weather, with average temperatures peaking at 28°C (82°F) and minimal humidity at 64%. Remarkably, April experiences no rainfall, creating dry conditions ideal for outdoor activities. For a detailed look at April's weather, you can check Cabo San Lucas weather in April.
When comparing the weather in September and May, there are notable differences in temperature and precipitation. September experiences a warmer climate with minimum temperatures around 23°C (74°F) and average highs reaching 31°C (88°F), while May enjoys a milder range, with minimums at 16°C (61°F) and maximums of 28°C (83°F). Additionally, September is characterized by significant rainfall, with 125 mm (4.9 in) over 13 days, resulting in a humidity level of 74%. In contrast, May boasts a dry spell, with no recorded precipitation and a lower humidity of 66%. For more details, you can check Cabo San Lucas weather in May.
In comparing the weather of September and June, September tends to be warmer and wetter. September sees average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), while June's temperatures are milder, with a minimum of 17°C (63°F) and a maximum of 29°C (84°F). Additionally, September experiences significantly higher precipitation with 125 mm (4.9 in) over 13 days, compared to just 15 mm (0.6 in) in June, which only has about one rainy day. Humidity levels are also higher in September at 74%, compared to June's 67%. For more detailed insights on June's weather, check out Cabo San Lucas weather in June.
When comparing the weather in September and July, September tends to be slightly warmer with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), while July has a cooler average, showcasing a minimum of 20°C (68°F) and a maximum of 31°C (87°F). Both months can reach similar maximum temperatures, but September experiences significantly more rainfall, with 125 mm (4.9 in) over 13 days compared to July’s mere 20 mm (0.8 in) on just 3 days. Additionally, humidity is marginally higher in September at 74%, compared to July's 72%. For more detailed insights on July weather, you can check Cabo San Lucas weather in July.
In comparing the weather between September and August, we see some notable differences. September experiences slightly cooler temperatures, with a minimum of 23°C (74°F) compared to August's minimum of 24°C (76°F). Both months have an average temperature of 27°C (81°F), but August tends to reach a higher maximum of 32°C (89°F) versus September's maximum of 31°C (88°F). Precipitation levels also increase in September, registering 125 mm (4.9 in) over 13 days, while August sees 87 mm (3.4 in) across just 9 days. Humidity remains relatively stable, with September at 74% and August at 73%. For a deeper look at August's weather details, you can refer to Cabo San Lucas weather in August.
September typically experiences warmer weather with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F). It also sees higher precipitation levels, with about 125 mm (4.9 in) falling over 13 days, contributing to a humidity of 74%. In contrast, October brings slightly cooler average temperatures, with a minimum of 21°C (70°F) and a maximum of 32°C (90°F). The month is much drier, with only 19 mm (0.7 in) of rain over just 3 days and a modest increase in humidity to 75%. For those looking for more details, check out Cabo San Lucas weather in October.
In September, the weather is noticeably warmer with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), coupled with high humidity at 74%. This month also sees substantial precipitation, with about 125 mm (4.9 in) falling over 13 days, making it one of the wetter times of the year. In contrast, November brings cooler temperatures, with averages dropping to a minimum of 19°C (67°F) and an average of 25°C (76°F), while still reaching up to 31°C (88°F) on warmer days. Rainfall is significantly reduced in November, with only 30 mm (1.2 in) over just 2 days, and humidity remains fairly consistent at 73%. For more details on November's climate, you can check Cabo San Lucas weather in November.
In September, Cabo San Lucas experiences a warm and humid climate, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F). The month sees considerable rainfall, with about 125 mm (4.9 in) of precipitation over 13 days, resulting in a relative humidity of around 74%. In contrast, December brings cooler and drier weather, featuring average temperatures between 15°C (60°F) and 29°C (84°F). Precipitation drops significantly to just 7 mm (0.3 in) over the course of one day, and humidity decreases slightly to 72%. For more details on what to expect, check out Cabo San Lucas weather in December.
September in Cabo San Lucas marks a transitional period, where temperatures remain warm but are often more subdued than the peak summer months. The average temperature hovers around 27°C (81°F), providing a pleasant atmosphere for visitors who are looking to escape the heat. However, this month is also characterized by an increase in humidity and the likelihood of rainfall, with several days experiencing showers. With an average of 125 mm (4.9 in) of precipitation over about 13 days, September can surprise travelers with sporadic downpours, contrasting sharply with the dry conditions of summer. As you plan your trip, keep in mind that Cabo San Lucas' weather is unique in September, offering a lush, rejuvenating ambiance for those willing to embrace the occasional rain. For more detailed insights into the climate, visit Cabo San Lucas Climate.