September Weather in Nogales, Mexico

Last updated: April 22, 2025

In September, Nogales, Mexico experiences a mildly warm climate characterized by maximum temperatures averaging around 25°C (77°F). The monthly average settles at a comfortable 17°C (62°F), while nighttime temperatures can dip to a cooler 7°C (45°F). This period witnesses significant rainfall, with an impressive total of 251 mm (9.9 in) across approximately 24 days, contributing to a high humidity level of 86%. Visitors to Nogales during this month should prepare for a mix of warm days and frequent showers, creating an inviting yet unpredictable atmosphere.

September Temperature in Nogales

In September, Nogales, Mexico, experiences pleasantly mild temperatures that signal the transition into autumn. With minimums around 7°C (45°F) and an average of 17°C (62°F), the city enjoys a comfortable ambiance ideal for exploration. As the days linger at a high of 25°C (77°F), there's a gentle allow the warmth of late summer to linger just a bit longer. This time of year sees temperatures maintaining a consistent trend, slightly cooler than the late summer months, while still retaining a balmy charm. Overall, September in Nogales invites both locals and visitors to appreciate outdoor activities amid its temperate climate.

September Weather in Nogales: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nogales, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545759626362616262615755
Data source: Temperature data for Nogales 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 Nogales

In September, Nogales, Mexico experiences a significant uptick in precipitation, recording a robust 251 mm (9.9 in) over 24 days of rainfall, making it one of the wettest months of the year. This dramatic surge follows the rainy patterns established in the preceding months, particularly June and August, which also showcase heavy rainfall. As summer transitions into fall, the consistent precipitation supports the region's lush landscapes, marking September as a pivotal month in the annual climatic cycle. The increased moisture not only rejuvenates the environment but also sets the stage for the cooler, drier months ahead, balancing the overall yearly weather patterns.

September Precipitation Trends in Nogales

The chart displays monthly precipitation patterns in Nogales, 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.
JanFebMarAprMayJunJulAugSepOctNovDec363154921672591251622511385628
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nogales

In September, humidity in Nogales, Mexico experiences a slight uptick to 86%, reflecting a transition as the monsoon season begins to wane. This month marks a return to levels akin to those recorded earlier in the year, notably similar to February's 86%. The summer months of July and August provide a brief respite with stable figures hovering around 81-82%, but as the seasons change, the moisture in the air begins to build again—a precursor to the even higher humidity levels that characterize the autumn months. October and November see a rise to 90% and 91%, respectively, highlighting a trend of increasing humidity as the year draws to a close. This pattern underscores Nogales' climatic rhythm, where dry spells alternate with more humid periods, particularly as the summer heat gives way to the cooler months.

September Average Humidity in Nogales

This chart illustrates the average monthly humidity levels in Nogales, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nogales

September in Nogales, Mexico, showcases a UV Index of 14, placing it firmly in the extreme exposure category, with a burn time of just 10 minutes under the midday sun. This continues the trend observed over the summer months, where high UV levels persisted from April through August. As the seasons transition into fall, the UV Index slightly dips in October to 12, yet it remains critical for residents and visitors alike to remain vigilant. Early fall sun still warrants protective measures, much like the scorching summer months. For those planning outdoor activities, understanding and preparing for the UV Index is key to enjoying the sunny days safely—learn more at Nogales UV Index.

Maximum UV Index Levels in Nogales for September

The chart shows the monthly maximum UV Index (UVI) for Nogales 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121415141515141412109
Data source: Nogales 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 Nogales

In September, Nogales, Mexico, enjoys a delightful average of 291 hours of sunshine, marking a gentle transition from the bright summer months. As the year unfolds, sunlight peaks in May and July with impressive totals of 325 and 330 hours, respectively. August maintains this brightness with 320 hours, but by September, the daylight begins to fade slightly as autumn approaches. Notably, the month retains a vibrant glow compared to earlier months like January, which struggles with only 237 hours. This trend highlights the sunny charm of late summer in Nogales, where sunshine ebbs yet still provides a warm and inviting atmosphere before the cooler months set in.

Monthly Sunshine Duration in Nogales: September Highlighted

The September sunshine duration represents the total number of hours Nogales 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.
JanFebMarAprMayJunJulAugSepOctNovDec237h274h314h314h325h297h330h320h291h305h291h296h
Data source: Nogales September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nogales During September

In September, Nogales, Mexico experiences a notable decrease in sunny weather, with only a 15% chance of sunshine. This marks a significant dip compared to the more favorable conditions found earlier in the year, such as 67% in February and 53% in March. As summer gives way to autumn, the likelihood of clear skies diminishes further, reflecting a broader trend of reduced sunlight from the peak summer months of June to August—which boast chances as low as 9% and 29%. The transition into fall brings a mix of cloudy days, making September a time when outdoor plans may encounter unpredictability, underscoring the need for flexibility in weather-dependent activities.

Percentage of Sunny Days in September in Nogales

The chart illustrates the percentage of sunny days in Nogales 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 Nogales experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%67%53%48%35%9%26%29%15%26%34%64%
Data source: Nogales September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nogales in September

In September, Nogales, Mexico, enjoys a pleasant 12 hours of daylight, reflecting a transition as summer begins to wane. This duration mirrors the daylight of both April and August, indicating a balance between the longer days of summer and the shorter days that follow in autumn. Notably, the daylight hours have gradually increased from 11 hours in January and February to the peak of 13 hours in June through July, only to settle back to 12 hours as September approaches. This rhythm showcases the region's temperate climate, providing a delightful blend of sunlight as the seasons shift, perfect for outdoor activities and enjoying the natural beauty of Nogales.

Average Daylight Hours in Nogales for September

The chart illustrates the variation in daylight duration in Nogales throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 7m11h 31m12h 2m12h 34m13h13h 13m13h 6m12h 43m12h 12m11h 41m11h 14m11h
Data source: Nogales daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Nogales

As September rolls in, Nogales, Mexico, experiences a gentle shift in its breezes, with an average wind speed of 1.7 m/s (4 mph), marking one of the quieter months in terms of airflow. This slight dip from the summer’s robust speeds of 2.2 m/s (5 mph) in July and August reflects a transition towards the cooler autumn months. Generally, the wind patterns in Nogales exhibit a trend of more vigorous breezes in the summer, gradually softening as the year progresses. Notably, September's calm winds create a serene atmosphere, perfect for enjoying the late-summer warmth while hinting at the refreshing changes ahead.

Average September Wind Speed in Nogales

The chart displays monthly wind speed patterns in Nogales, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.12.12.01.81.62.22.21.7 m/s1.92.11.8
Data source: Nogales September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Nogales Compares to Other Months

The weather in Nogales 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 Nogales and find detailed weather information for every month.

September typically presents a milder climate compared to January, with average temperatures ranging from a cool 7°C (45°F) to a warm 25°C (77°F) and significant precipitation of 251 mm (9.9 in) spread over 24 days, resulting in higher humidity levels at 86%. In contrast, January features a minimum temperature of 0°C (33°F) and averages around 12°C (54°F), with a similar maximum reaching 25°C (78°F), but it experiences much less precipitation, totaling only 36 mm (1.4 in) over 8 days, while maintaining a humidity level of 88%. The significant difference in rainfall and temperature ranges highlights September’s wetter and warmer conditions, while January leans towards cooler, drier weather. For more detailed insights, check out Nogales weather in January.

September and February showcase distinct weather patterns, reflecting the transition between seasons. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 25°C (77°F), with an average of 17°C (62°F). The month is characterized by significant rainfall, totaling 251 mm (9.9 in) over 24 days, contributing to high humidity levels of 86%. In contrast, February experiences milder temperatures, with a minimum of 1°C (35°F) and a maximum of 29°C (84°F), averaging 14°C (57°F). Precipitation is considerably less during this month, at 31 mm (1.2 in) over just 8 days, maintaining the same humidity level of 86%. For more detailed insights into February's weather, you can refer to Nogales weather in February.

In comparing the weather between September and March, September tends to be warmer and wetter. It features a temperature range from a minimum of 7°C (45°F) to a maximum of 25°C (77°F), with an average of 17°C (62°F). In contrast, March has a cooler temperature range, with minimums around 3°C (38°F) and maximums reaching 28°C (83°F), though with an average temperature of 15°C (59°F). Additionally, September experiences significantly more precipitation, totaling 251 mm (9.9 in) over 24 days, compared to March's 54 mm (2.1 in) spread over just 11 days. Humidity levels are similar, with September at 86% and March slightly lower at 84%. For a more detailed look at March weather, you can visit Nogales weather in March.

When comparing the weather in September and April, both months present mild average temperatures around 17°C (62°F). However, September tends to be wetter, with substantial rainfall of 251 mm (9.9 in) spread over 24 days, in contrast to April’s 91 mm (3.6 in) over just 16 days. Additionally, September shows higher humidity levels at 86%, while April maintains a slightly lower humidity of 81%. Notably, April also experiences warmer maximum temperatures, reaching up to 28°C (83°F) compared to September's peak of 25°C (77°F). For more information on the weather patterns during April, you can visit Nogales weather in April.

In comparing the weather of September and May, both months exhibit mild average temperatures, with September averaging 17°C (62°F) and May slightly higher at 17°C (64°F). However, May tends to be a bit warmer at maximum temperatures, reaching up to 28°C (82°F) compared to September's peak of 25°C (77°F). Additionally, September experiences significantly more rainfall, with 251 mm (9.9 in) over 24 days, while May sees less precipitation at 167 mm (6.6 in) across 22 days. Humidity levels are also higher in September at 86%, compared to May's 82%. For a closer look at May weather patterns, you can check out Nogales weather in May.

In September, the weather showcases a minimum temperature of 7°C (45°F) and averages around 17°C (62°F), peaking at a maximum of 25°C (77°F). This month experiences significant precipitation, totaling 251 mm (9.9 in) over 24 days, with a notably high humidity of 86%. In contrast, June has slightly warmer conditions with minimum temperatures of 9°C (49°F) and a maximum of 26°C (78°F), averaging at 17°C (63°F). While June is also rainy, receiving 259 mm (10.2 in) across 25 days, it has milder humidity levels at 81%. For a more detailed look at the weather in June, check out Nogales weather in June.

In comparing the weather between September and July, we find that both months feature similar maximum temperatures, with July reaching a high of 25°C (78°F) and September also matching that peak. However, September has a slightly lower average temperature of 17°C (62°F) compared to July's 16°C (61°F), while minimum temperatures remain nearly identical. A significant difference is observed in precipitation, with September experiencing much higher rainfall at 251 mm (9.9 in) over 24 days, compared to July’s 125 mm (4.9 in) over just 16 days. Additionally, September's humidity is higher at 86%, compared to July’s 81%, making it a more humid month overall. For more details on July weather specifics, check out Nogales weather in July.

In comparing the weather of September to that of August, both months share a similar average temperature of 17°C (62°F), with maximum temperatures peaking at 25°C (78°F) in August and 25°C (77°F) in September. However, September is characterized by a noticeably higher level of precipitation, receiving 251 mm (9.9 in) over 24 days, compared to August's 162 mm (6.4 in) over 20 days. This increase in rainfall leads to slightly higher humidity levels in September at 86%, compared to 82% in August. For more detailed insights on August's weather, you can refer to Nogales weather in August.

September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 25°C (77°F), with an average of 17°C (62°F). This month experiences a significant amount of precipitation, totaling 251 mm (9.9 in) over 24 days, alongside a high humidity level of 86%. In contrast, October sees slightly cooler temperatures, with a minimum of 5°C (41°F), an average of 16°C (61°F), and a maximum of 27°C (81°F). Precipitation decreases to 138 mm (5.4 in) over 19 days, and humidity rises to 90%. Overall, October presents a transition towards cooler weather and reduced rainfall. For more specific details on October weather in Nogales, you can visit Nogales weather in October.

September weather is characterized by warmer temperatures, with average highs reaching up to 25°C (77°F) and a significant amount of rainfall at 251 mm (9.9 in) over 24 days, leading to a high humidity of 86%. In contrast, November experiences cooler temperatures, where the average drops to 14°C (57°F), and although it can still reach 25°C (78°F) at its peak, it sees much less precipitation at 56 mm (2.2 in) over just 12 days. Additionally, November has a slight increase in humidity at 91%. For more insights into November weather, you can check Nogales weather in November.

In September, the weather features a wide temperature range, with minimums around 7°C (45°F) and highs reaching up to 25°C (77°F), offering an average of 17°C (62°F). This month experiences significant rainfall, with 251 mm (9.9 in) spread across 24 days, leading to humidity levels around 86%. Conversely, December brings cooler temperatures, with lows at -1°C (31°F) and a maximum around 24°C (75°F), resulting in an average of 13°C (55°F). The precipitation drops dramatically to just 28 mm (1.1 in) over 7 days, while humidity slightly increases to 91%. For more detailed insights, you can check Nogales weather in December.

Compare Nogales's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Nogales

September in Nogales brings a distinct shift in weather, characterized by its higher humidity and increased precipitation compared to the drier summer months. With nearly 24 days of rain, the landscape becomes lush and vibrant, a stark contrast to the arid conditions earlier in the year. Temperatures also feel cooler, with a noticeable dip in the average, making it a time for fresh, invigorating breezes. This blend of rain and mild temperatures sets September apart, inviting both residents and visitors to experience the beauty of nature in full bloom. To learn more about how this month shapes the overall weather trends in Nogales, visit Nogales Climate.