Last updated: April 22, 2025
September in San Lucas, Mexico welcomes the transition from summer with temperatures ranging from a mild 8°C (47°F) to a cozy high of 28°C (83°F). The average temperature sits at a comfortable 18°C (65°F), making it an inviting time for visitors. This month also brings substantial rainfall, with 175 mm (6.9 in) of precipitation over approximately 18 days, resulting in a humid climate with an average humidity of 81%. Travelers should be prepared for the possibility of rain while enjoying the vibrant natural surroundings that September offers.
As September unfolds in San Lucas, Mexico, the weather begins to shift, offering a delightful transition into autumn. With minimum temperatures around 8°C (47°F) and maxing out at a comfortable 28°C (83°F), this month presents a wonderful balance, leading to an average of 18°C (65°F). Compared to the sweltering peak of summer, September's climate feels significantly more temperate, making it an ideal time for outdoor activities and exploration. Although the mild days are gradually shorter than those of the hotter months, the inviting warmth still allows for plenty of sun-kissed experiences before the cooler days of October arrive. This climatic shift not only invites visitors to enjoy the beautiful scenery but also sets the stage for San Lucas's vibrant autumn charm.
September marks a significant peak in precipitation for San Lucas, Mexico, with 175 mm (6.9 in) of rain falling across 18 days. This surge is part of a notable trend, as the summer months of June through August also brought substantial rainfall, averaging between 158 mm (6.2 in) and 170 mm (6.7 in). The rainy season reaches its climax in September, reflecting a pattern where humidity and moisture buildup culminate in intense showers. Following September, October sees a dramatic decrease to 58 mm (2.3 in), indicating a swift transition from the lush, wet summer months to drier autumn conditions. This trend not only highlights the area's distinct wet season but also emphasizes the variability in precipitation throughout the year, shaping San Lucas's vibrant landscape.
September in San Lucas, Mexico, ushers in a notable rise in humidity, reaching 81%—a significant increase from the more temperate months earlier in the year. This peak signals the transition into the late summer and early fall, where the warm air combines with a moisture-rich atmosphere, fostering a feeling of tropical warmth. Following this pattern, October and November see humidity climb even higher, topping out at 83% and 84%, respectively. Notably, throughout the year, January starts off with the driest conditions at 74%, illustrating a clear trend of increasing humidity as the seasons progress. Such shifts underscore the region's characteristic blend of warm sunshine and enriching humidity, creating an inviting environment for those eager to experience its vibrant climate.
In September, San Lucas, Mexico, experiences a significant UV Index of 14, placing it firmly in the extreme exposure category, with a burn time of just 10 minutes. This trend of high UV levels has been consistent throughout the summer months, peaking in May at an astonishing 15. As the year progresses towards autumn, while the index dips slightly in October to 12, it remains a reminder of the region's potent sun. Visitors and locals alike should remain vigilant and take necessary precautions during this time. For a comprehensive view of the yearly UV patterns, check out the details at San Lucas UV Index.
UV Risk Categories
September in San Lucas, Mexico, offers a delightful blend of warmth and sunshine, boasting an impressive 282 hours of sunshine. While this is a dip from the sun-drenched peaks of summer—337 hours in May and 313 hours in July—the golden rays continue to grace the region with ample light and warmth. As summer transitions to autumn, September marks a gentle decline in sunshine hours, yet it remains a charming time to visit. The sun-soaked days are balanced by cooler breezes, making it an ideal moment for outdoor adventures. This month serves as a beautiful culmination of the sunlit summer, inviting visitors to enjoy spectacular sunsets against the backdrop of the stunning coastline.
As you plan your trip to San Lucas, Mexico, it's essential to keep in mind the likelihood of sunny weather in September. This month features a rather modest 16% chance of sunshine, placing it among the cloudier times of the year. Interestingly, this dip in sun exposure follows the more favorable months of February through April, which boast chances as high as 91% and 81%. By June, the sun's presence dwindles significantly, dropping to a mere 15% in the heart of summer, and September unfortunately continues this trend. If you're craving those bright, sunny days, consider visiting earlier in the year when the likelihood of enjoying the sun is at its peak.
In September, San Lucas, Mexico enjoys a steady return to 12 hours of daylight, mirroring the amount of light found in August. As the summer wanes, the days begin to shorten, transitioning from the sun-drenched 13-hour days of mid-summer in June, July, and August. This gradual decline marks a clear shift in season, leading toward the shorter days of the fall and winter months. Notably, after September, daylight dwindles further to 11 hours in October and 10 hours by December, illustrating the rhythmic ebb and flow of daylight throughout the year in this beautiful region.
As September unfolds in San Lucas, Mexico, the gentle caress of the wind is palpable, with an average speed of 1.7 m/s (4 mph) marking it as one of the calmer months of the year. The summer's breezy highs gradually give way to a more tranquil atmosphere, reflecting a noticeable decline from the preceding months, which hovered around 2.0 m/s. This decrease in wind speed suggests a transition into the heart of autumn, characterized by serene days that invite leisurely strolls along the shore. October sees a slight uptick, returning to 2.0 m/s, hinting at nature's rhythmic ebb and flow, as the region prepares for the cooler months ahead. Overall, September's winds herald a softer side of San Lucas, where relaxation takes the lead.
The weather in 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 San Lucas and find detailed weather information for every month.
In September, the weather is characterized by a wider temperature range, with minimums around 8°C (47°F) and maximums reaching up to 28°C (83°F), accompanied by significant rainfall totaling 175 mm (6.9 in) over 18 days. The high humidity, averaging 81%, contributes to a warm and somewhat muggy atmosphere. In contrast, January offers a cooler experience, with temperatures ranging from a chilly 0°C (33°F) to an average of 14°C (58°F) and a maximum of 28°C (82°F). Notably, January sees much less precipitation, with only 5 mm (0.2 in) over just one day, and lower humidity at 74%. For more details on January weather, you can check San Lucas weather in January.
September and February present quite distinct weather characteristics. In September, temperatures range from a cool 8°C (47°F) to a warm 28°C (83°F), with an average temperature of 18°C (65°F). This month is marked by significant rainfall, totaling 175 mm (6.9 in) over approximately 18 days, contributing to a high humidity level of 81%. In contrast, February offers a milder climate with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). February experiences considerably less precipitation, just 7 mm (0.3 in) over 2 days, and a lower humidity level of 65%. For a closer look at February weather, check out San Lucas weather in February.
When comparing the weather in September and March, it's clear that both months have their distinct characteristics. September experiences a broader temperature range, with minimums around 8°C (47°F) and maximums climbing to 28°C (83°F), while March is slightly cooler, with lows of 5°C (41°F) and highs reaching up to 32°C (90°F). Notably, September is much wetter, receiving 175 mm (6.9 in) of precipitation over 18 days, compared to a mere 12 mm (0.5 in) over just 2 days in March. Additionally, September has a higher humidity level at 81%, contrasting with March's more comfortable 58%. For more specific details about March weather in San Lucas, you can check San Lucas weather in March.
When comparing the weather in September and April, notable differences emerge. September typically experiences a wider temperature range, with minimums around 8°C (47°F) and maximums reaching 28°C (83°F), while the average temperature hovers at 18°C (65°F). In contrast, April has a milder minimum of 7°C (44°F) but boasts a higher average at 21°C (69°F), culminating in maximum temperatures of up to 33°C (92°F). Additionally, September is characterized by significantly higher precipitation, with 175 mm (6.9 in) falling over 18 days, resulting in a humid atmosphere with 81% humidity. In comparison, April is much drier, with only 11 mm (0.4 in) of rainfall over just 2 days and a humidity level of 58%. For a more detailed look at April's weather, you can refer to this link: San Lucas weather in April.
When comparing the weather in September and May, notable differences emerge. September tends to be cooler, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 28°C (83°F), while May boasts warmer averages, with temperatures starting at 10°C (50°F) and peaking at 35°C (95°F). September is also characterized by significantly higher precipitation, averaging 175 mm (6.9 in) over 18 days, compared to May's lighter rainfall of 54 mm (2.1 in) over just 7 days. Additionally, September displays higher humidity levels at 81%, as opposed to May's more comfortable 67%. For more detailed insights into May weather, you can check out San Lucas weather in May.
In comparing the weather between September and June, one can observe notable differences in temperature and humidity. September typically sees a minimum temperature of 8°C (47°F) and averages around 18°C (65°F), while June is slightly warmer with a minimum of 9°C (49°F) and an average of 20°C (69°F). June also reaches a higher maximum temperature of 34°C (94°F) compared to September's 28°C (83°F). When it comes to precipitation, September experiences about 175 mm (6.9 in) over 18 days, which is slightly more than June's 170 mm (6.7 in) over 16 days. Additionally, September has a higher humidity level at 81%, compared to June's 76%. For more detailed information, you can check San Lucas weather in June.
In comparing the weather of September and July, we notice a slight difference in temperatures and precipitation. September experiences a minimum temperature of 8°C (47°F), an average of 18°C (65°F), and a maximum of 28°C (83°F), while July has a slightly warmer range with minimums at 11°C (52°F), an average of 19°C (66°F), and maximums reaching 29°C (84°F). Although September sees a higher precipitation level of 175 mm (6.9 in) over 18 days, July isn’t far behind with 160 mm (6.3 in) across 21 days. Additionally, September tends to be more humid, with a humidity rate of 81%, compared to July's 67%. For a closer look at July's climate specifics, you can visit San Lucas weather in July.
In comparing the weather of September and August, September tends to be slightly cooler, with minimum temperatures dropping to 8°C (47°F) compared to August's minimum of 11°C (53°F). The average temperature in September is 18°C (65°F), just a degree lower than August's average of 19°C (66°F). Both months experience similar maximum temperatures, reaching 28°C (83°F) in September and 29°C (84°F) in August. However, September also sees increased precipitation, totaling 175 mm (6.9 in) over 18 days, compared to August's 158 mm (6.2 in) during the same number of rainy days. Additionally, the humidity rises in September to 81%, whereas August has a more comfortable level of 68%. For a more detailed look at the weather specifics for August, you can visit San Lucas weather in August.
September and October present a subtle transition in weather patterns. September experiences a higher average temperature with a minimum of 8°C and a maximum of 28°C, while October sees slightly cooler nights with a minimum of 6°C, maintaining a similar average of 18°C and a peak of 29°C. Rainfall is significantly reduced in October, with only 58 mm compared to September's 175 mm, and fewer rainy days—11 compared to 18. Humidity remains relatively high in both months, averaging 81% in September and slightly increasing to 83% in October. For a detailed look at October conditions, check out San Lucas weather in October.
September and November offer noticeably different weather conditions. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 28°C (83°F), with an average of 18°C (65°F). The month is characterized by high humidity at 81% and significant rainfall, totaling 175 mm (6.9 in) over 18 days. In contrast, November presents cooler temperatures, with a minimum of 3°C (37°F), an average of 16°C (60°F), and a maximum of 30°C (85°F). Rain is scarce during this month, accumulating only 24 mm (0.9 in) over just 3 days, while humidity slightly increases to 84%. For more detailed insights, check out San Lucas weather in November.
In September, temperatures range from a cool 8°C (47°F) at night to a warm 28°C (83°F) during the day, with an average of 18°C (65°F). This month is characterized by significant rainfall, receiving about 175 mm (6.9 in) over 18 days, and maintaining a high humidity level of 81%. In contrast, December experiences much cooler temperatures, with lows dipping to 0°C (32°F) and an average of 14°C (58°F). The maximum temperature remains pleasant at 27°C (81°F), but December is remarkably dry, boasting only 4 mm (0.2 in) of precipitation over the entire month and no rainy days. Both months share the same humidity level of 81%, but the contrast in rainfall and temperature highlights a significant shift from September to December. For more detailed information, check out San Lucas weather in December.
As September rolls in, San Lucas showcases a notable shift in weather patterns compared to the drier months of summer. With an average temperature of 18°C and maximum highs reaching 28°C, it offers a pleasant yet humid environment, characterized by a significant 81% humidity. Unlike the sun-drenched days of previous months, September is marked by increased rainfall, averaging 175 mm over 18 days, making it one of the wetter periods of the year. This blend of warm temperatures and frequent showers transforms the town, enriching its landscape and creating a vibrant atmosphere. For a deeper insight into what to expect, explore the detailed San Lucas Climate.