September Weather in Ciudad Valles, Mexico

Last updated: April 22, 2025

In September, Ciudad Valles, Mexico experiences a dynamic blend of warm temperatures and substantial rainfall, making it a unique month for visitors and locals alike. The maximum temperatures can soar up to 41°C (106°F), while the average settles around a comfortable 28°C (83°F), providing a warm climate for outdoor exploration. However, as the minimum dips to 20°C (68°F) during cooler evenings, it offers a refreshing respite. This month is characterized by significant precipitation, with 175 mm (6.9 in) expected over approximately 21 days, contributing to the region's lush landscapes. Coupled with a humidity level of 84%, the weather can feel quite muggy, adding to the tropical ambiance of Ciudad Valles as it transitions into the rainy season.

September Temperature in Ciudad Valles

In Ciudad Valles, Mexico, September marks the transition into slightly cooler temperatures as the summer heat begins to wane. With minimums averaging 20°C (68°F) and a comfortable average of 28°C (83°F), it provides a pleasant reprieve from the sweltering highs of the preceding months. The maximum temperatures can still soar up to 41°C (106°F), reflecting a lingering warmth typical of late summer, but overall, the month balances warmer days with potentially refreshing evenings. As the region approaches the fall, this gradual cooling trend suggests a harmonious blend of warmth and comfort, making September an inviting time to experience the vibrant culture and natural beauty of Ciudad Valles.

September Weather in Ciudad Valles: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ciudad Valles, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec677176828685848582797369
Data source: Temperature data for Ciudad Valles generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ciudad Valles

September in Ciudad Valles, Mexico, marks a notable peak in precipitation, with 175 mm (6.9 in) of rainfall over 21 days. This substantial downpour continues the trend established in the preceding months, where the wet season progresses from May's 92 mm to an impressive 172 mm in June and remains high in August at 126 mm. The consistent increase showcases September as a pivotal month in the rainy season, supporting the region's lush landscapes. Following this peak, October sees a slight decrease in both volume and frequency of rain, with 161 mm (6.4 in) spread over 15 days, signaling the gradual transition towards drier months ahead. This cyclical pattern highlights the region's rich climatic diversity and its impact on local ecosystems.

September Precipitation Trends in Ciudad Valles

The chart displays monthly precipitation patterns in Ciudad Valles, 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.
JanFebMarAprMayJunJulAugSepOctNovDec33233541921721381261751613017
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Ciudad Valles

In Ciudad Valles, Mexico, September marks a notable fluctuation in humidity, with levels rising to 84% after the drier summer months. This resurgence in moisture comes after a gradual decline that began in the previous months, peaking at 88% in January and gradually tapering down to its lowest at 72% in July. As the city transitions from the warmth of summer to the cooler embrace of autumn, the humidity starts to climb again, setting the stage for a shift in the climate. The trend suggests a consistent pattern of high humidity levels throughout the year, with the transition from the summer heat into the fall bringing a slight yet significant increase, hinting at the lush greenery and vibrant flora that define this beautiful region.

September Average Humidity in Ciudad Valles

This chart illustrates the average monthly humidity levels in Ciudad Valles, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ciudad Valles

In September, Ciudad Valles experiences a UV Index of 12, categorizing it in the extreme range with a burn time of just 10 minutes. This trend of high UV exposure continues from the previous months, where the index remained predominantly in the extreme category from April through August. Although there’s a slight dip from the peak of 13 in the summer months, the risk remains significantly high, urging residents and visitors to take appropriate sun protection measures. As we transition into fall, it's essential to remain vigilant about the UV levels in the region. For more detailed information, visit Ciudad Valles UV Index.

Maximum UV Index Levels in Ciudad Valles for September

The chart shows the monthly maximum UV Index (UVI) for Ciudad Valles 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.
JanFebMarAprMayJunJulAugSepOctNovDec79121312131313121187
Data source: Ciudad Valles 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 Ciudad Valles

As summer gracefully transitions into autumn, September in Ciudad Valles, Mexico, continues to bask in abundant sunshine, boasting an impressive 289 hours of sunlight. This month reflects a slight decrease from the peak summer months of July and August, which recorded 323 and 325 hours respectively, showcasing the region's vibrant climatic trend. While September marks the beginning of the cooler season, it still retains a generous amount of sunshine, exceeding earlier months like January and February, which had 186 and 234 hours. The consistent warmth and luminous skies make September an ideal time to explore the natural beauty and cultural richness of Ciudad Valles, as daylight remains plentiful even as it gradually bids farewell to the heat of summer.

Monthly Sunshine Duration in Ciudad Valles: September Highlighted

The September sunshine duration represents the total number of hours Ciudad Valles 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.
JanFebMarAprMayJunJulAugSepOctNovDec186h234h271h276h304h311h323h325h289h276h248h262h
Data source: Ciudad Valles September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ciudad Valles During September

In September, Ciudad Valles experiences a notably low likelihood of sunny weather, with only a 25% chance of sunshine, marking it as one of the cloudier months of the year. This trend contrasts sharply with the sunnier months preceding it, as March showcases a peak at 56%, followed by a respectable 51% in February and 49% in August. Moreover, as the season shifts into October, the chances of sunny days rebound to 49%, demonstrating the regional variability in weather patterns. Overall, if you're planning a trip in September, be prepared for the possibility of overcast skies, as the sunshine often takes a backseat during this time.

Percentage of Sunny Days in September in Ciudad Valles

The chart illustrates the percentage of sunny days in Ciudad Valles 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 Ciudad Valles experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%52%56%42%44%23%34%49%25%49%54%67%
Data source: Ciudad Valles September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ciudad Valles in September

In Ciudad Valles, Mexico, September marks the tail end of a vibrant summer season, as daylight duration begins to taper off. With 12 hours of sunlight, this month mirrors the lengths found in April and August, creating a balanced and inviting atmosphere for outdoor activities. Following the peak of 13 hours shared in May through July, daylight starts to slowly wane, hinting at the approaching autumn. This gradual decrease fosters a sense of transition, where the warmth of summer lingers in the air while the days grow subtly shorter, paving the way for the cozy embrace of fall in the coming months.

Average Daylight Hours in Ciudad Valles for September

The chart illustrates the variation in daylight duration in Ciudad Valles throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 56m11h 25m12h 1m12h 39m13h 11m13h 26m13h 18m12h 50m12h 13m11h 36m11h 4m10h 48m
Data source: Ciudad Valles daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ciudad Valles

In September, Ciudad Valles experiences a gentle breeze with an average wind speed of 1.4 m/s (3 mph), marking a subtle shift as summer begins to wane. This month, like July, holds the title for the calmest winds of the year, following a slight uptick in air movement during the spring months. As temperatures start to cool, September's breezes often carry a refreshing feel, contrasting with the heavier humidity of the preceding summer months. Observing the trend from January through September, one notes an overall increase in wind speed until reaching a peak in April, followed by a gradual decline. This pattern highlights a dynamic but mellow climate, making September a time of tranquil transitions in Ciudad Valles.

Average September Wind Speed in Ciudad Valles

The chart displays monthly wind speed patterns in Ciudad Valles, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.82.12.31.91.51.41.71.4 m/s1.41.61.5
Data source: Ciudad Valles September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ciudad Valles Compares to Other Months

The weather in Ciudad Valles 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 Ciudad Valles and find detailed weather information for every month.

In September, Ciudad Valles experiences significantly warmer temperatures, with a minimum of 20°C (68°F) and an average high reaching up to 41°C (106°F). The month is also characterized by high humidity at 84% and considerable rainfall, accumulating around 175 mm (6.9 in) over 21 days. In contrast, January brings much cooler temperatures, with a minimum of 7°C (44°F) and an average high of 38°C (100°F). Precipitation is minimal in January, totaling only 33 mm (1.3 in) over just 5 days, despite a slight increase in humidity to 88%. For more information, you can check Ciudad Valles weather in January.

September and February present contrasting weather conditions in Ciudad Valles. In September, temperatures are notably warm, with an average of 28°C (83°F) and highs reaching up to 41°C (106°F). The month also experiences significant rainfall, totaling 175 mm (6.9 in) over about 21 days, accompanied by high humidity levels at 84%. In contrast, February offers a much cooler climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 39°C (102°F) and an average of 22°C (72°F). Rainfall is minimal during this month, with only 23 mm (0.9 in) recorded over just 6 days, while humidity remains slightly higher at 86%. For more details on February weather, visit Ciudad Valles weather in February.

In comparing the weather of September and March, we see significant differences in temperature and precipitation. September is notably warmer, with an average temperature of 28°C (83°F) and highs reaching up to 41°C (106°F). It is also much wetter, experiencing 175 mm (6.9 in) of rainfall over 21 days, leading to high humidity levels of 84%. In contrast, March offers cooler conditions, with average temperatures around 25°C (77°F) and a maximum of 43°C (110°F). Rainfall is minimal at just 34 mm (1.4 in) across only 8 days, resulting in slightly lower humidity at 83%. For more detailed insights, you can check Ciudad Valles weather in March.

In comparing the weather of September and April, both months feature similar average temperatures around 28°C (82°F). However, April marks a drier period, with only 41 mm (1.6 in) of precipitation over just 7 days, while September sees significantly higher rainfall at 175 mm (6.9 in) across 21 days. Additionally, April experiences slightly cooler minimum temperatures, averaging 15°C (59°F), compared to September's warmer minimum of 20°C (68°F). Humidity levels are comparable, with September slightly higher at 84% compared to April's 80%. For more details on the specific weather patterns in April, visit Ciudad Valles weather in April.

In September, the weather features a minimum temperature of 20°C (68°F) and an average of 28°C (83°F), with maximums reaching 41°C (106°F). The month is marked by high humidity at 84% and a significant amount of precipitation, totaling 175 mm (6.9 in) over 21 days. In contrast, May boasts slightly cooler minimum temperatures at 17°C (64°F) and a higher average of 30°C (86°F), with maximums peaking at an impressive 46°C (115°F). Additionally, May experiences lower precipitation levels at 92 mm (3.6 in) over 16 days and slightly lower humidity at 82%. For more details on the weather in May, visit Ciudad Valles weather in May.

In comparing the weather between September and June, both months feature warm temperatures and significant humidity. September sees minimum temperatures of around 20°C (68°F), averaging 28°C (83°F), and reaching a maximum of 41°C (106°F). This month receives about 175 mm (6.9 in) of precipitation over 21 days, contributing to a humidity level of 84%. On the other hand, June has slightly higher minimum temperatures at 21°C (71°F), with an average of 29°C (85°F) and a peak temperature of 42°C (107°F). It experiences slightly less precipitation at 172 mm (6.8 in) across 20 days and lower humidity at 79%. For a detailed look at weather patterns, you can check the Ciudad Valles weather in June.

In comparing the weather of September and July, we see notable similarities and differences. Both months experience high maximum temperatures, reaching up to 41°C (106°F in September and 107°F in July), but July boasts a slightly higher minimum temperature of 21°C (70°F) compared to September's 20°C (68°F). The average temperature is also marginally higher in July at 29°C (85°F) than in September at 28°C (83°F).

However, September tends to be wetter, receiving 175 mm (6.9 in) of precipitation over 21 days, while July has a lower precipitation level of 138 mm (5.4 in) over 19 days. Additionally, September's humidity is significantly higher at 84%, compared to 72% in July, making it feel more humid and muggy. For a closer look at July's weather trends, you can visit Ciudad Valles weather in July.

In comparing September and August weather, both months experience high temperatures, but September showcases slightly cooler minimum and average temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), compared to August's minimum of 21°C (69°F) and average of 29°C (85°F). However, September brings increased humidity at 84% and greater precipitation, totaling 175 mm (6.9 in) over 21 days, compared to August's 126 mm (5.0 in) over 17 days. Notably, August records a maximum temperature of 42°C (107°F), just slightly higher than September's maximum of 41°C (106°F). For a closer look at August weather specifics, visit Ciudad Valles weather in August.

September and October in Ciudad Valles reveal a notable shift in weather patterns. September boasts higher temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), peaking at a scorching 41°C (106°F). In contrast, October cools down, featuring a minimum temperature of 13°C (55°F) and an average of 26°C (79°F), with a maximum of 39°C (102°F). While both months experience significant rainfall, September sees 175 mm (6.9 in) over 21 days compared to October's 161 mm (6.4 in) across 15 days. Additionally, October exhibits heightened humidity at 92%, up from September's already high 84%. For more detailed information, check out Ciudad Valles weather in October.

The weather in September is characterized by significantly higher temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), peaking at a scorching 41°C (106°F). In contrast, November offers a much cooler climate, starting at a low of 5°C (41°F) and averaging 23°C (73°F), with a maximum of 35°C (95°F). Additionally, September experiences heavier rainfall, totaling 175 mm (6.9 in) over 21 days, compared to November's modest precipitation of 30 mm (1.2 in) across just 6 days. Despite higher humidity levels in November at 91%, September's humidity remains warm and high at 84%. For more detailed information, you can visit Ciudad Valles weather in November.

In comparing the weather between September and December, significant differences become apparent. September boasts a much warmer climate, with average temperatures around 28°C (83°F) and maximums that can reach up to 41°C (106°F). Additionally, it experiences considerable rainfall, with precipitation totaling 175 mm (6.9 in) over 21 days, contributing to a high humidity level of 84%. In contrast, December brings much cooler conditions, featuring average temperatures around 20°C (69°F) and minimums dipping to 5°C (41°F). The month is characterized by much less rainfall, only 17 mm (0.7 in) over 4 days, coupled with slightly higher humidity at 91%. For more detailed insights on December weather, you can visit Ciudad Valles weather in December.

Compare Ciudad Valles's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ciudad Valles

As September unfolds in Ciudad Valles, the weather takes a distinctive turn, marked by a rise in humidity and frequent rainfall that sets this month apart from the drier summer months. While temperatures remain warm, with an average around 28°C, the notable 175 mm of precipitation over 21 days transforms the landscape and revitalizes the lush surroundings. This humid environment, with its high moisture content of 84%, may feel quite different from the drier conditions earlier in the season, making September a time of vibrant life and refreshing change. For a deeper dive into the overall climate of Ciudad Valles, check out Ciudad Valles Climate.