September Weather in Valle de Banderas, Mexico

Last updated: April 22, 2025

In September, Valle de Banderas, Mexico, experiences warm temperatures, with maximums reaching 31°C (88°F) and averages around 26°C (80°F). The minimum temperature hovers at a comfortable 23°C (73°F), providing pleasant nights. However, this month is marked by significant precipitation, totaling 358 mm (14.1 in) across an impressive 28 rainy days, contributing to a humidity level of 78%. These climatic conditions create a rich, lush environment, ideal for experiencing the tropical beauty of this vibrant region.

September Temperature in Valle de Banderas

In Valle de Banderas, Mexico, September marks the transition into early autumn, characterized by a warm and humid climate. With minimum temperatures hovering around 23°C (73°F) and maximums reaching up to 31°C (88°F), the month reflects a peak in warmth typical of the summer months. The average temperature stabilizes at 26°C (80°F), signaling a slight decrease from the sweltering highs of July and August. As the region prepares to embrace milder October weather, September retains its tropical allure, making it a vibrant time for visitors to enjoy the lush landscapes and lively atmosphere. This month not only showcases the tail end of the warm season but also hints at the cooler months ahead.

September Weather in Valle de Banderas: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Valle de Banderas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717172737679818080797672
Data source: Temperature data for Valle de Banderas 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 Valle de Banderas

September in Valle de Banderas, Mexico, marks a peak in the rainy season, receiving an impressive 358 mm (14.1 in) of precipitation over 28 days. This substantial amount follows the intense rainfall of August, which recorded an astonishing 382 mm (15.0 in), illustrating a trend of heightened moisture that characterizes late summer and early autumn. As the region transitions into October, precipitation typically tapers off, dropping to 214 mm (8.4 in), making September a pivotal month that not only sustains lush landscapes but also sets the stage for the drier months to come. This seasonal rhythm ensures that Valle de Banderas remains vibrant, showcasing the dynamic interplay between heavy rains and the picturesque surroundings.

September Precipitation Trends in Valle de Banderas

The chart displays monthly precipitation patterns in Valle de Banderas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec23291141711923823582143020
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valle de Banderas

September in Valle de Banderas, Mexico, brings a consistent humidity level of 78%, mirroring the elevated figures of the summer months. As the year progresses, humid conditions seem to take hold beginning in June, peaking in July, and gradually settling to similar levels through August and September. This trend indicates a tropical climate that thrives on moisture, catering to lush vegetation and warm, inviting weather. As the month transitions to October, a slight drop to 75% humidity is observed, hinting at the onset of drier conditions. Overall, September embodies the essence of the region’s warm, humid atmosphere, perfect for enjoying the beautiful coastal landscape.

September Average Humidity in Valle de Banderas

This chart illustrates the average monthly humidity levels in Valle de Banderas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec71%69%67%66%69%78%79%78%78%75%74%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valle de Banderas

In September, Valle de Banderas experiences a UV Index of 12, categorizing it as an extreme exposure month with a burn time of just 10 minutes. This trend of high UV levels continues from the peak summer months of June to August, which all plateau at a UV Index of 13. Interestingly, as we transition into the fall, the UV Index begins to slightly decline, dropping to 11 in October, yet it remains firmly within the extreme range. The overall pattern indicates that visitors should remain vigilant about sun protection during this period, as the intensity of UV radiation remains significant. For detailed information, check out Valle de Banderas UV Index.

Maximum UV Index Levels in Valle de Banderas for September

The chart shows the monthly maximum UV Index (UVI) for Valle de Banderas 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.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131213121197
Data source: Valle de Banderas 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 Valle de Banderas

September in Valle de Banderas, Mexico, continues the region's trend of abundant sunshine, offering 257 hours of glorious daylight. While this marks a decrease from the peak sunny months of May and April, it still stands as a vibrant shield against the encroaching autumn. The summer months of June and July present a powerful sun, averaging around 306 hours each, yet September maintains a delightful warmth, perfect for beachgoers and outdoor enthusiasts alike. As the sun begins to set a bit earlier, September serves as a beautiful transition, blending the fervor of summer with the anticipation of the fall season, providing visitors with a rich tapestry of light and warmth.

Monthly Sunshine Duration in Valle de Banderas: September Highlighted

The September sunshine duration represents the total number of hours Valle de Banderas 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.
JanFebMarAprMayJunJulAugSepOctNovDec225h261h319h328h349h307h306h274h257h275h284h278h
Data source: Valle de Banderas September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Valle de Banderas During September

In Valle de Banderas, Mexico, the likelihood of sunny weather takes a notable dip as summer fades into September. While the region enjoys a generous 77% chance of sunshine in March, this enthusiasm wanes significantly by the time September arrives, falling to just 22%. This pattern reflects the transition toward the wetter months, with rain becoming increasingly prevalent as the end of summer approaches. Although October sees a slight rebound with a 39% chance of sunshine, September stands out as one of the cloudier months, urging visitors to embrace the region's lush greenery and vibrant landscapes rather than solely the sun-soaked shores.

Percentage of Sunny Days in September in Valle de Banderas

The chart illustrates the percentage of sunny days in Valle de Banderas 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 Valle de Banderas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%59%77%66%71%23%23%15%22%39%60%59%
Data source: Valle de Banderas September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Valle de Banderas in September

In Valle de Banderas, Mexico, September marks a transitional point in daylight duration, featuring approximately 12 hours of sunlight. This maintains the trend observed during the summer months, where June, July, and August also enjoyed similar daylight hours. After a peak in May with 13 hours, the daylight begins to gradually recede, signaling the approach of the shorter days of fall. The consistent daylight in September provides an ideal backdrop for outdoor activities, as it combines warm temperatures with a decent amount of sunshine, all before the daylight dips to 11 hours in October. This rhythmic pattern in daylight not only shapes the local climate but also influences the vibrant lifestyle of the residents and visitors alike.

Average Daylight Hours in Valle de Banderas for September

The chart illustrates the variation in daylight duration in Valle de Banderas throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 1m11h 27m12h 2m12h 37m13h 7m13h 21m13h 13m12h 47m12h 13m11h 38m11h 7m10h 53m
Data source: Valle de Banderas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Valle de Banderas

As summer transitions to fall, September in Valle de Banderas greets visitors with its gentler breezes, boasting an average wind speed of 1.3 m/s (3 mph). This subtle decline from the more brisk winds of the early year hints at a shift in the weather pattern, as both July and August also exhibit lower wind speeds. The serene atmosphere not only enhances the landscape's beauty but also invites relaxation and tranquility. Interestingly, this drop marks the lowest wind speed recorded throughout the year, suggesting a peaceful interlude before the winds pick up again in November. Here, in the embrace of September's soft winds, one can fully enjoy the vibrant surroundings while basking in the mellow charm of Mexico's coastal paradise.

Average September Wind Speed in Valle de Banderas

The chart displays monthly wind speed patterns in Valle de Banderas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.81.91.81.81.61.41.51.3 m/s1.51.61.7
Data source: Valle de Banderas September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Valle de Banderas Compares to Other Months

The weather in Valle de Banderas 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 Valle de Banderas and find detailed weather information for every month.

September and January present contrasting weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 31°C (88°F), with an average of 26°C (80°F). This month is characterized by high humidity at 78% and significant rainfall, totaling 358 mm (14.1 in) across 28 days. In contrast, January features cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 30°C (85°F), averaging 22°C (71°F). Precipitation dramatically decreases to just 23 mm (0.9 in) over only 2 days, and humidity lowers to 71%. For a more in-depth look at January weather, you can visit Valle de Banderas weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 31°C (88°F), with an average of 26°C (80°F). This month is characterized by high humidity at 78% and significant precipitation totaling 358 mm (14.1 in) over 28 days. In stark contrast, February features cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 29°C (84°F), averaging 22°C (71°F). Precipitation is minimal at just 29 mm (1.1 in) over 3 days, and humidity drops to 69%. These differences make September a much wetter and more humid month compared to the drier and cooler February. For more detailed insights, visit Valle de Banderas weather in February.

September and March present contrasting weather patterns. September, with an average temperature of 26°C (80°F), features significantly warmer conditions, reaching highs of 31°C (88°F). However, it is also marked by high humidity at 78% and substantial rainfall, totaling 358 mm (14.1 in) over 28 days, making it a rather wet month. In comparison, March offers cooler temperatures with an average of 22°C (72°F) and highs of 29°C (85°F). It is notably dry, with only 1 mm (0.0 in) of precipitation recorded across the entire month and no rainy days, coupled with a lower humidity level of 67%. For a closer look at the conditions during this time, check out Valle de Banderas weather in March.

When comparing the weather in September and April, there are notable differences. September experiences higher temperatures, with averages around 26°C (80°F) and maximums reaching 31°C (88°F), while April is cooler, with an average of 23°C (74°F) and maximums of 29°C (84°F). Additionally, September is marked by significant rainfall, totaling 358 mm (14.1 in) over 28 days, in contrast to April, which sees nearly no precipitation at just 1 mm and no rainy days. Humidity levels are also higher in September at 78%, compared to 66% in April, making September feel more muggy. For a closer look at the weather patterns in April, you can refer to Valle de Banderas weather in April.

September and May showcase contrasting weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 31°C (88°F), with an average of 26°C (80°F). This month is marked by significant rainfall, receiving 358 mm (14.1 in) over 28 days, and higher humidity levels at 78%. In stark contrast, May offers a more temperate climate, featuring a minimum of 16°C (61°F) and a maximum of 30°C (87°F), with a comfortable average of 25°C (77°F). Remarkably, May experiences almost no precipitation, with just 4 mm (0.2 in) recorded over 0 days and lower humidity at 69%. For a deeper look at the weather during this time, check out Valle de Banderas weather in May.

In comparing the weather between September and June, both months exhibit similar average temperatures, with June slightly cooler at an average of 26°C (79°F) compared to September's average of 26°C (80°F). However, September experiences significantly more rainfall, with a total of 358 mm (14.1 in) over 28 days, while June sees only 171 mm (6.7 in) across 15 days. Despite the rainfall differences, both months maintain the same humidity level of 78%, contributing to a warm and humid atmosphere. For more detailed information, you can check Valle de Banderas weather in June.

In comparing the weather between September and July, we notice that both months feature similar minimum temperatures of around 23°C (73°F), but July tends to be slightly warmer overall, with an average temperature of 27°C (81°F) compared to September's average of 26°C (80°F). While July has a maximum temperature of 32°C (89°F), September reaches a maximum of 31°C (88°F). Rainfall is significantly higher in September, with 358 mm (14.1 in) over 28 days, compared to July's 192 mm (7.6 in) over 24 days. Humidity levels are quite comparable, with September at 78% and July at 79%. For more details on the weather specifics for July, you can refer to Valle de Banderas weather in July.

In comparing the weather of September to August, we notice that September brings slightly warmer temperatures, with an average of 26°C (80°F) compared to August's 27°C (81°F). Both months experience a high of around 31°C (88°F), but September sees a slight decrease in overall precipitation, totaling 358 mm (14.1 in) over 28 days, compared to August's 382 mm (15.0 in) across 29 days. The humidity remains constant at 78% in both months, providing a similarly muggy atmosphere. For more detailed insights, you can check out Valle de Banderas weather in August.

In comparing the weather between September and October, we see a slight cooling trend with October's minimum temperature at 21°C (71°F) compared to September's 23°C (73°F). Both months maintain an average temperature of 26°C (80°F), but October offers a marginally warmer maximum temperature of 32°C (90°F) against September's 31°C (88°F). Precipitation significantly decreases in October, with 214 mm (8.4 in) over 21 days, in contrast to September's 358 mm (14.1 in) over 28 days, resulting in slightly lower humidity levels at 75% in October versus 78% in September. For more detailed insights on October weather, you can explore Valle de Banderas weather in October.

In comparing the weather between September and November, September boasts warmer temperatures, with a minimum of 23°C (73°F) and an average of 26°C (80°F), while November cools down slightly to a minimum of 17°C (63°F) and an average of 25°C (77°F). Interestingly, both months can reach a maximum of 31°C (88°F), but September is characterized by significantly higher precipitation at 358 mm (14.1 in) over 28 days, compared to November's much drier conditions with only 30 mm (1.2 in) over 4 days. Additionally, humidity levels are slightly higher in September at 78%, compared to 74% in November, making November feel a bit more comfortable overall. For more detailed information, you can check Valle de Banderas weather in November.

September and December exhibit distinct weather patterns that significantly impact the overall climate experience. In September, temperatures are warmer with a minimum of 23°C (73°F), an average of 26°C (80°F), and a maximum reaching 31°C (88°F). This month is also characterized by high humidity at 78% and considerable rainfall of 358 mm (14.1 in) over 28 days, creating a lush and vibrant environment. In contrast, December brings cooler temperatures, with a minimum of 15°C (60°F), an average of 22°C (73°F), and a maximum of 29°C (84°F). This month sees much less precipitation, totaling only 20 mm (0.8 in) across just 3 days, accompanied by slightly lower humidity at 74%. For those interested in exploring the weather specifics of December, you can find more information here: Valle de Banderas weather in December.

Compare Valle de Banderas's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Valle de Banderas

As September unfolds in Valle de Banderas, it brings a unique blend of warmth and humidity, setting itself apart from the drier months that precede and follow it. With average temperatures nearing a pleasant 26°C (80°F), residents and visitors experience a tropical atmosphere, albeit accompanied by significant rainfall throughout the month. The frequent showers, amounting to a staggering 358 mm (14.1 in) over 28 days, create a lush landscape, transforming the region into a vibrant oasis. Though the humidity lingers at around 78%, this time of year offers a notable shift from the rest of the year, marking a period where verdant scenery meets the invigorating scent of rain. For a deeper dive into the overall weather patterns, check out Valle de Banderas Climate.