Last updated: April 22, 2025
September in Las Grutas, Mexico offers a unique blend of climate characteristics that shape the coastal experience. With maximum temperatures reaching a comfortable 26°C (79°F) and an average around 17°C (62°F), the weather provides a pleasant backdrop for outdoor activities. However, the month is marked by high humidity levels at 85% and significant rainfall, totaling 293 mm (11.5 in) over 25 days, which can result in frequent showers. While this may deter sun-seekers, the lush surroundings and cooler temperatures make it a captivating time for those who appreciate nature's vibrancy during the rainy season.
In September, Las Grutas enjoys a mild climate, with temperatures reflecting the transitions of early autumn. The minimum temperature hovers around 7°C (45°F), while the average settles at a comfortable 17°C (62°F), peaking with a maximum of 26°C (79°F). This month's temperatures indicate a narrowing range compared to the warmer summer months, suggesting a pleasant environment for both relaxation and outdoor activities. As the summer heat begins to wane, visitors can expect ideal conditions for exploring the stunning coastline or enjoying local attractions without the sweltering heat typical of earlier in the season. Overall, September serves as a beautiful bridge into the cooler months while still offering ample warmth and sunshine.
In September, Las Grutas experiences a significant rainfall, with 293 mm (11.5 in) accumulating over 25 days of precipitation. This marks a slight decrease from the intense conditions of July and August, where over 399 mm and 360 mm fell, respectively. The month continues the pattern of the summer season, characterized by frequent showers that are pivotal for replenishing the region's natural landscape. As the year transitions into October, there is a notable shift, with precipitation sharply tapering off to 117 mm (4.6 in). This trend highlights a gradual move away from the monsoonal rains, hinting at the drier months ahead, while underscoring the importance of September as one of the last heavy rainfall periods in Las Grutas.
September in Las Grutas, Mexico, brings a notable rise in humidity, maintaining a steady 85%, similar to the peak levels seen in August. This consistency highlights a trend where the late summer months, particularly from June through September, experience higher humidity, creating a tropical ambiance perfect for those seeking a warm escape. Following September, humidity begins to taper off, with October dropping to 79%, indicating the transition into the drier autumn months. Overall, September stands as a bridge between the lush, humid summer and the more moderate conditions of fall, catering to both relaxation seekers and adventurers alike.
In September, Las Grutas continues to experience an extreme UV Index of 14, maintaining the trend seen throughout the summer months. With a burn time of just 10 minutes, it's crucial for visitors to prioritize sun safety, especially as the intensity remains high. Comparatively, after the peak in April, the UV Index slightly tapers in the autumn months, dropping to 12 in October, but still demands caution. This consistency in high UV levels throughout these months underscores the importance of protective measures for those enjoying the beautiful beaches. For more details on UV exposure and safety tips, check out the Las Grutas UV Index.
UV Risk Categories
September brings a gentle transition in Las Grutas, with an average of 263 hours of sunshine. This captures a lovely essence, as the days gradually shorten after a sun-drenched summer, which peaked in May with 330 hours. Following a vibrant spring, the daylight hours dip slightly in September, yet they still outshine the dreariness of many other locations. Interestingly, this month offers a perfect blend of warmth and mildness, with the sun still generously casting its glow before autumn sets in fully. As the sun begins its descent into October with 282 hours of sunshine, September stands as a beautiful reminder of the last golden weeks of warmth in the region.
In Las Grutas, Mexico, the likelihood of enjoying sunny weather takes a noticeable dip in September, with only a 13% chance of sunshine. This marks a stark contrast to the brighter early months of the year, such as February with a 94% chance, and March at a solid 81%. As summer fades into fall, the trend reveals a gradual decline in sunlight, peaking in the spring and dipping significantly during the summer months, particularly in June through August, where chances linger around a mere 12-16%. Ultimately, September residents and visitors alike should brace for more overcast days, as the sun's appearance becomes increasingly rare before conditions improve again in the following months.
In Las Grutas, Mexico, September marks a transition as daylight duration settles at 12 hours, mirroring the hours experienced in August. This month continues the trend of longer days that began in late winter, peaking with 13 hours from May through July. As summer wanes, the gradual decrease in daylight becomes evident, preparing the region for the shorter days of autumn. This rhythm of light and darkness is a defining feature of the area's seasonal shift, inviting visitors to relish the lingering daylight before the days shorten further into October.
As September arrives in Las Grutas, Mexico, the gentle caress of the wind at an average speed of 1.4 m/s (3 mph) offers a calm reprieve from the warmer summer months. This slight dip in wind speed mirrors the trend seen throughout summer, with the winds gradually losing their vigor from July's peak. Comparatively, September maintains a steady breeze, similar to August and slightly less than October, creating an ideal ambiance for beachgoers and nature lovers alike. As the year transitions into fall, the winds remain a soothing background, inviting a relaxed atmosphere perfect for leisurely strolls along the coast.
The weather in Las Grutas 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 Las Grutas and find detailed weather information for every month.
September and January present contrasting weather patterns. In September, temperatures range from a cool 7°C (45°F) at night to a warm 26°C (79°F) during the day, with an average temperature of 17°C (62°F). This month is characterized by high precipitation, totaling 293 mm (11.5 in) over approximately 25 rainy days, coupled with a humidity level of 85%. In stark contrast, January experiences milder temperatures, with a minimum of 0°C (32°F) and a maximum reaching 26°C (78°F), averaging 12°C (54°F). The month is notably drier, with only 21 mm (0.8 in) of precipitation spread over just 3 days, and the humidity drops to a more comfortable 70%. For more detailed weather insights, visit Las Grutas weather in January.
In September, the weather is generally milder, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 26°C (79°F), averaging at 17°C (62°F). The month experiences significant rainfall, with about 293 mm (11.5 in) over approximately 25 days, leading to higher humidity levels at around 85%. In contrast, February features slightly cooler temperatures, with a minimum of 3°C (37°F) and a maximum reaching 27°C (82°F), averaging at 14°C (57°F). Additionally, February is much drier, with only 19 mm (0.7 in) of precipitation over 4 days and a lower humidity of 64%. For a closer look at February weather specifics, you can visit Las Grutas weather in February.
September and March exhibit notable contrasts in weather. September's temperatures range from a minimum of 7°C (45°F) to a maximum of 26°C (79°F), with an average of 17°C (62°F). It is characterized by high humidity levels at 85% and significant precipitation of 293 mm (11.5 in) over approximately 25 days, making it one of the wetter months. In contrast, March features slightly cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 29°C (84°F), resulting in an average temperature of 16°C (62°F). March offers a much drier climate, with only 26 mm (1.0 in) of precipitation over about 6 days and lower humidity at 54%. For more details, check out Las Grutas weather in March.
September and April display quite distinct weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 26°C (79°F), with an average of 17°C (62°F). This month is characterized by high precipitation, totaling 293 mm (11.5 in) over 25 days, resulting in a humidity level of 85%. In contrast, April experiences warmer temperatures with a minimum of 5°C (41°F) and a maximum of 31°C (88°F), averaging 18°C (65°F). This month is much drier, receiving only 16 mm (0.6 in) of rain over just 4 days and with a more moderate humidity of 61%. For more details on the weather during this time, you can check Las Grutas weather in April.
When comparing the weather in September and May, several notable differences emerge. September experiences a broader temperature range with a minimum of 7°C (45°F), an average of 17°C (62°F), and a maximum of 26°C (79°F). In contrast, May tends to be warmer, featuring a similar minimum of 7°C (45°F) but with a higher average of 19°C (66°F) and a maximum reaching 32°C (89°F).
Additionally, September is significantly wetter, receiving 293 mm (11.5 in) of precipitation over 25 days, compared to May’s much lighter rainfall of 84 mm (3.3 in) over 13 days. Humidity levels also differ, with September being more humid at 85%, while May enjoys a comparatively drier 75%. For more detailed insights on conditions during May, check out Las Grutas weather in May.
When comparing the weather in September and June, we see a shift in both temperature and precipitation patterns. September generally presents slightly cooler temperatures, with a minimum of 7°C (45°F) and an average of 17°C (62°F), while June offers warmer conditions, featuring a minimum of 9°C (48°F) and an average of 18°C (64°F). Additionally, June can reach higher maximum temperatures, soaring up to 32°C (89°F), compared to September's peak of 26°C (79°F). In terms of rainfall, September experiences a higher precipitation level with 293 mm (11.5 in) over 25 days, contrasted with June's 249 mm (9.8 in) across 24 days. Humidity levels remain relatively similar, with September at 85% and June slightly lower at 83%. For more detailed insights, check Las Grutas weather in June.
In comparing the weather between September and July, both months showcase similar average temperatures around 17°C (62°F), but their daily minimums and maximums reveal some slight differences. In July, the temperature ranges from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), while September sees a drop in minimum temperature to 7°C (45°F) but maintains the same maximum of 26°C (79°F). Precipitation levels are notably higher in July, with a total of 399 mm (15.7 in) over 30 days, compared to September's 293 mm (11.5 in) over 25 days, reflecting a slightly drier month. Humidity levels are also quite high in both months, with September at 85% and July at 83%, contributing to the overall feeling of mugginess. For more detailed information, you can check Las Grutas weather in July.
In comparison to August, September offers slightly cooler temperatures, with minimums dropping from 10°C (49°F) to 7°C (45°F), while the average and maximum temperatures remain the same at 17°C (62°F) and 26°C (79°F) respectively. However, September experiences more frequent rainfall, with precipitation occurring over 25 days and totaling 293 mm (11.5 in), compared to August's 360 mm (14.2 in) over 28 days. Notably, humidity levels are consistent at 85% in both months, contributing to a generally humid atmosphere. For further insights into August weather patterns, you can visit Las Grutas weather in August.
September tends to be warmer with an average temperature of 17°C (62°F), while October sees a slight drop to an average of 16°C (61°F). The maximum temperatures remain similar in both months, peaking at 26°C (79°F) in September and 26°C (78°F) in October. However, September is considerably wetter, receiving 293 mm (11.5 in) of precipitation over 25 days, compared to October's 117 mm (4.6 in) over just 16 days. Additionally, humidity is slightly higher in September at 85%, while October experiences a more comfortable 79%. For more specific details on October weather, you can refer to Las Grutas weather in October.
September and November weather exhibit notable differences, particularly in temperature and precipitation. In September, temperatures range from a cool 7°C (45°F) at night to a warm average of 17°C (62°F) during the day, peaking at 26°C (79°F). This month is characterized by frequent rainfall, with 293 mm (11.5 in) of precipitation spread over 25 days, resulting in high humidity levels of 85%. In contrast, November experiences a chillier minimum temperature of 2°C (35°F) and a lower average of 14°C (58°F), although daytime highs can still reach up to 27°C (80°F). Importantly, November sees a drastic reduction in rainfall, with only 51 mm (2.0 in) over 7 days and a lower humidity of 76%. For those looking to explore this region in November, more specific weather insights can be found at Las Grutas weather in November.
September and December present stark contrasts in weather patterns. In September, temperatures range from a chilly 7°C (45°F) during the night to a warm 26°C (79°F) during the day, with an average of 17°C (62°F). This month is characterized by high humidity at 85% and substantial rainfall, averaging 293 mm (11.5 in) over 25 wet days. In contrast, December experiences cooler weather, with temperatures dropping to a minimum of -1°C (31°F) and an average of 12°C (55°F), while still peaking at 26°C (79°F). Rainfall is significantly less, as December sees only 9 mm (0.3 in) of precipitation over just 2 days, and humidity decreases to 74%. For more details, you can check Las Grutas weather in December.
September in Las Grutas presents a unique weather experience marked by its considerable precipitation and higher humidity levels, setting it apart from the drier months of the year. With an average temperature hovering around 17°C, it offers a refreshing respite from the summer heat, making it an intriguing time to visit. The increase in rainfall, arriving on nearly 25 days, creates lush landscapes that enhance the region's natural beauty. For those planning a trip, it's essential to be prepared for sudden showers while enjoying the cooler days. Discover more about what to expect year-round in this stunning coastal town at Las Grutas Climate.