September Weather in San Jose del Penasco, Mexico

Last updated: April 22, 2025

In September, San Jose del Penasco, Mexico, experiences mild temperatures with a maximum of 27°C (81°F) and an average of 18°C (65°F), dipping to a refreshing minimum of 11°C (52°F) during the cooler nights. This transitional month is characterized by significant precipitation, accumulating 635 mm (25.0 in) over 26 days, contributing to a notably high humidity level of 84%. Visitors can expect lush, vibrant landscapes shaped by the frequent showers, making it an ideal time to explore the natural beauty and cultural richness of this coastal gem.

September Temperature in San Jose del Penasco

In September, San Jose del Penasco offers a delightful climate that is characteristic of early autumn. With minimum temperatures around 11°C (52°F) and maximums reaching 27°C (81°F), visitors can expect comfortably warm days that invite outdoor activities. The average temperature settles at a pleasant 18°C (65°F), making it an ideal time for beachgoers and adventure seekers alike. As the summer heat starts to wane, September showcases a transition towards more moderate conditions, mirroring the gradual shift in temperatures seen from previous months. This perfect blend of warmth and refreshing breezes not only enhances the scenic beauty but also provides a welcoming environment for all who visit.

September Weather in San Jose del Penasco: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Jose del Penasco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec606264666665646464646261
Data source: Temperature data for San Jose del Penasco 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 San Jose del Penasco

September in San Jose del Penasco, Mexico, marks the tail end of the region's rainy season, delivering a significant 635 mm (25.0 in) of precipitation over 26 days. This month, along with August, is among the wettest of the year, showcasing a remarkable peak following the already elevated rainfall from June and July. The frequent showers contribute to lush landscapes, but they also highlight the dramatic shift in weather patterns, with a stark contrast to the drier months that bookend the rainy season. As the region transitions into October, a notable decrease in precipitation is expected, hinting at the gradual return to the arid climate that characterizes San Jose del Penasco.

September Precipitation Trends in San Jose del Penasco

The chart displays monthly precipitation patterns in San Jose del Penasco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec15818973326744826896353261913
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Jose del Penasco

In September, San Jose del Penasco experiences a notable rise in humidity, reaching 84%. This increase mirrors the earlier months of the year, particularly January and August, which also hover around the same level of moisture in the air. The trend suggests a cyclical pattern, with humidity peaking in late summer and early fall before the transition into the cooler, wetter months of October and November, when humidity climbs even higher. As summer gives way to autumn, residents and visitors can expect a tropical ambiance, characterized by warm temperatures and a soft, lingering humidity that enhances the coastal experience.

September Average Humidity in San Jose del Penasco

This chart illustrates the average monthly humidity levels in San Jose del Penasco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Jose del Penasco

In San Jose del Penasco, Mexico, the UV Index consistently reaches extreme levels throughout the year, with September standing out at 15 — a number that has been prevalent in the summer months since May. This trend reflects the region's sunny climate, where the potential for sunburn remains high, with a burn time of just 10 minutes under direct sunlight. Following the peak summer months, the UV Index gradually decreases to 13 in October but remains in the extreme category, reinforcing the importance of sun protection even as the season shifts. For those venturing outdoors, it's essential to stay informed and take precautions. To learn more about UV levels throughout the year, visit San Jose del Penasco UV Index.

Maximum UV Index Levels in San Jose del Penasco for September

The chart shows the monthly maximum UV Index (UVI) for San Jose del Penasco 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.
JanFebMarAprMayJunJulAugSepOctNovDec111315151515151415131110
Data source: San Jose del Penasco 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 San Jose del Penasco

In September, San Jose del Penasco basks in an impressive 275 hours of sunshine, continuing a trend of ample daylight that characterizes the late summer and early fall months. This figure, while slightly lower than the peak of 322 hours in March, is representative of a gradual decline in sunlight as the year transitions. Yet, it remains comfortably above the 258 hours seen in the warmer month of June, highlighting the region's enduring warmth. As the summer fades, the weather still invites visitors to enjoy outdoor adventures, beach activities, and breathtaking sunsets, making September a delightful time to explore all that this vibrant destination has to offer.

Monthly Sunshine Duration in San Jose del Penasco: September Highlighted

The September sunshine duration represents the total number of hours San Jose del Penasco 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.
JanFebMarAprMayJunJulAugSepOctNovDec247h281h322h318h316h258h312h290h275h289h302h305h
Data source: San Jose del Penasco September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Jose del Penasco During September

In San Jose del Penasco, Mexico, September sees a notable decline in the likelihood of sunny weather, with only an 8% chance of sunshine. This sharp drop follows a trend evident in the summer months, where June through August also experience minimal sun, hinting at a pattern of overcast skies as the season transitions. Notably, as the year progresses towards autumn, chances of sunny weather begin to recover, with October rising to 28% and November reaching 69%. This fluctuation paints a vivid picture of a coastal climate where summer brings heat but often grey skies, while autumn begins to promise the return of clearer, sunnier days.

Percentage of Sunny Days in September in San Jose del Penasco

The chart illustrates the percentage of sunny days in San Jose del Penasco 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 San Jose del Penasco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%76%74%53%27%8%19%12%8%28%69%79%
Data source: San Jose del Penasco September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Jose del Penasco in September

As summer gracefully gives way to autumn, September in San Jose del Penasco, Mexico, showcases a balance in daylight, offering 12 hours of sunlight. This duration reflects a notable trend where daylight peaks in June with 13 hours before tapering gradually towards the end of the year. The months of March through August also enjoy consistent daylight, ranging between 12 to 13 hours, providing ample opportunity for outdoor activities and exploration. As the days shorten, the transition into October nudges daylight duration back down to 11 hours, heralding the return of cozy evenings. Thus, September stands as a harmonious bridge between the longer, sun-drenched days of summer and the shorter days of fall.

Average Daylight Hours in San Jose del Penasco for September

The chart illustrates the variation in daylight duration in San Jose del Penasco throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 16m11h 36m12h 2m12h 30m12h 52m13h 3m12h 57m12h 37m12h 11m11h 44m11h 21m11h 10m
Data source: San Jose del Penasco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in San Jose del Penasco

As the summer warmth begins to fade, September in San Jose del Penasco greets visitors with a gentle breeze, characterized by an average wind speed of 1.4 m/s (3 mph). This marks a noticeable decline from the more robust breezes earlier in the year, such as the consistent 1.8 m/s (4 mph) seen in the height of spring. While the air remains pleasantly mild, the diminishing winds hint at the transition into autumn, setting the stage for a refreshing shift in the coastal atmosphere. Following September, October brings a slight uptick back to 1.6 m/s (4 mph), suggesting that as the landscape around begins to change, so too does the rhythm of the wind in this picturesque locale.

Average September Wind Speed in San Jose del Penasco

The chart displays monthly wind speed patterns in San Jose del Penasco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.91.81.81.71.21.71.61.4 m/s1.62.21.7
Data source: San Jose del Penasco September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in San Jose del Penasco Compares to Other Months

The weather in San Jose del Penasco 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 Jose del Penasco and find detailed weather information for every month.

September and January present contrasting weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). This month is characterized by significant rainfall, receiving about 635 mm (25.0 in) over 26 days, creating a humid atmosphere with a humidity level of 84%. In contrast, January experiences milder conditions with temperatures varying from a minimum of 5°C (41°F) to a maximum of 27°C (81°F), and an average of 16°C (60°F). The precipitation is drastically lower at just 15 mm (0.6 in) over only 3 days, while humidity remains consistent at 84%. For more detailed information, check out San Jose del Penasco weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a cool 11°C (52°F) to a warm 27°C (81°F), with an average of 18°C (65°F), whereas February offers milder conditions, with minimums of 5°C (41°F) and maximums reaching 28°C (82°F), averaging 17°C (62°F). September is notably wetter, with 635 mm (25.0 in) of precipitation spread over 26 days, while February enjoys a much drier climate, receiving only 8 mm (0.3 in) of rain across just 2 days. Both months feature high humidity levels, with September at 84% and February slightly lower at 80%. For more detailed insights, check out San Jose del Penasco weather in February.

In comparing the weather of September and March, September tends to be wetter and more humid, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (81°F) and experiencing substantial rainfall of 635 mm (25.0 in) over 26 days. In contrast, March features drier conditions, with significantly less precipitation at just 18 mm (0.7 in) over 5 days, and temperatures varying from a minimum of 8°C (46°F) to a warmer maximum of 29°C (84°F). While both months share a similar average temperature of around 18°C (64°F), March's lower humidity of 73% contributes to a more comfortable feel compared to the higher humidity levels of 84% in September. For more detailed insights on March weather, you can check San Jose del Penasco weather in March.

When comparing the weather in September and April, we see notable differences in temperature and precipitation. September typically experiences a range of temperatures from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). In contrast, April has slightly warmer temperatures, ranging from a minimum of 10°C (49°F) to a maximum of 30°C (87°F) and an average of 19°C (66°F). Additionally, September is much wetter, with a staggering 635 mm (25.0 in) of rainfall over 26 days, while April sees significantly less precipitation at 97 mm (3.8 in) across 15 days, resulting in lower humidity levels of 67% compared to September's 84%. For a closer look at April's climate specifics, check out San Jose del Penasco weather in April.

In comparing the weather of September and May, both months experience similar minimum temperatures, hovering around 11°C (52°F). However, May typically enjoys slightly warmer average and maximum temperatures, with averages reaching 19°C (67°F) and a high of 29°C (84°F), while September has an average of 18°C (65°F) and a maximum of 27°C (81°F). Precipitation levels also differ significantly; September sees a substantial 635 mm (25.0 in) of rain over 26 days, making it a much wetter month compared to May's 332 mm (13.1 in) over 23 days. Additionally, September holds a higher humidity level at 84%, compared to 72% in May. For more detailed information on May weather, check out San Jose del Penasco weather in May.

September and June in San Jose del Penasco exhibit similar temperature ranges, with both months averaging around 18°C (65°F) and peaking at 27°C (81°F in September and 82°F in June). However, September tends to be slightly cooler at its minimum temperature of 11°C (52°F), compared to June's 12°C (54°F). One notable difference is in precipitation, with September receiving 635 mm over 26 days, while June records a higher 674 mm of rainfall over the same number of days. Additionally, September has a higher humidity level at 84%, compared to June's 73%. For more details on the June weather specifics, you can visit San Jose del Penasco weather in June.

In comparing the weather of September and July, both months exhibit similar temperature ranges, boasting minimums of 11°C (52°F), average temperatures of 18°C (65°F), and maximums of 27°C (81°F). However, September tends to be wetter, with a notable increase in precipitation to 635 mm (25.0 in) over 26 days, compared to July's 482 mm (19.0 in) across 24 days. Additionally, September experiences higher humidity at 84%, while July maintains a slightly lower humidity level of 76%. For more detailed insights on July weather specifics, you can refer to San Jose del Penasco weather in July.

In comparing the weather between August and September, we see that both months experience similar average temperatures, with September slightly cooler, featuring a minimum of 11°C and a maximum of 27°C, compared to August's minimum of 12°C and maximum of 26°C. However, September experiences slightly more precipitation, with 635 mm over 26 days, compared to August's 689 mm over 28 days. Additionally, September has a marginally higher humidity level at 84%, while August maintains a humidity of 80%. For those looking for more detailed information, check out San Jose del Penasco weather in August.

In September, the weather in San Jose del Penasco showcases mild temperatures, with a minimum of 11°C (52°F) and a maximum reaching 27°C (81°F), averaging around 18°C (65°F). This month experiences significant rainfall, accumulating 635 mm (25.0 in), spread over 26 days, and the humidity levels hover around 84%.

In contrast, October sees slightly cooler nights with a minimum of 10°C (50°F), while retaining the same maximum of 27°C (81°F) and an average temperature of 18°C (64°F). The precipitation decreases significantly to 326 mm (12.8 in) over 20 days, and humidity rises to 89%, indicating a more humid atmosphere. For more details on weather trends, check out San Jose del Penasco weather in October.

In September, the weather is generally warmer with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (81°F). This month experiences significant rainfall, with a total precipitation of 635 mm (25.0 in) over 26 days, contributing to a high humidity level of 84%. In contrast, November sees a slight drop in temperature, with a minimum of 7°C (45°F) and an average temperature of 17°C (62°F), while still reaching a maximum of 27°C (81°F). Remarkably, November has much less precipitation, totaling only 19 mm (0.7 in) across just 3 days, although humidity rises slightly to 88%. For more detailed information, you can check out San Jose del Penasco weather in November.

In September, the weather is marked by a wider temperature range, with minimums reaching 11°C (52°F) and maximums climbing to 27°C (81°F), leading to an average of 18°C (65°F). This month is also characterized by significant rainfall, with 635 mm (25.0 in) of precipitation over 26 days, creating a humid atmosphere with an average humidity of 84%. In contrast, December experiences milder temperatures, with a minimum of 6°C (44°F) and the same maximum as September at 27°C (80°F), resulting in a slightly lower average of 16°C (61°F). However, December is notably drier, with only 13 mm (0.5 in) of precipitation spread over just 2 days, and humidity levels rise slightly to 88%. For more detailed information about December weather, you can refer to this link: San Jose del Penasco weather in December.

Compare San Jose del Penasco's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in San Jose del Penasco

As September arrives in San Jose del Penasco, the weather showcases a notable shift characterized by increased humidity and frequent rainfall. With an average temperature that hovers around a comfortable 18°C, the month brings more precipitation than its predecessors, making it one of the wetter times of the year. The combination of higher humidity levels and regular rain contributes to a lush, vibrant landscape that's quite different from the drier months. For those seeking to understand more about the nuanced patterns of weather throughout the year, a deeper dive into the local climate can be found at San Jose del Penasco Climate.