September Weather in Morelos, Mexico

Last updated: April 22, 2025

In Morelos, Mexico, September ushers in a blend of refreshing temperatures and vibrant rainfall, making it a unique month for visitors. With maximum temperatures reaching 27°C (81°F) and an average of 18°C (64°F), the weather remains pleasantly warm, while minimums can dip to 9°C (48°F), especially during cooler evenings. This month sees a notable precipitation total of 148 mm (5.8 in) over 17 days, contributing to the region’s lush landscapes. Coupled with a high humidity level of 86%, the air feels tropical, making September a dynamic time to experience the natural beauty and cultural richness of Morelos.

September Temperature in Morelos

In September, Morelos, Mexico experiences a delightful transition into autumn, with temperatures reflecting a mild and comfortable climate. The minimum temperature hovers around 9°C (48°F), offering a refreshing start to the days, while the average rises to a pleasant 18°C (64°F). As the sun shines, typical highs reach 27°C (81°F), marking a gentle decline from the summer peak, yet still warm enough for outdoor activities. This month serves as a bridge between the warmer summer months and the cooler autumn ahead, providing a perfect backdrop for enjoying the region's natural beauty and vibrant culture.

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

The chart illustrates September temperature patterns in Morelos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545763667069666664625854
Data source: Temperature data for Morelos 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 Morelos

September marks one of the wettest months in Morelos, Mexico, with a notable precipitation total of 148 mm (5.8 in) over 17 days. This trend of heightened rainfall follows a series of progressively wetter months, peaking after the summer. In stark contrast to the arid start of the year, when January and February saw minimal precipitation, the region experiences a significant shift, with June and July recording heavy downpours. As the verdant landscape flourishes in response to this torrential rain, September's abundant precipitation not only sustains the local ecosystem but also sets the stage for a lush autumn in Morelos.

September Precipitation Trends in Morelos

The chart displays monthly precipitation patterns in Morelos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec179672611014989148481612
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Morelos

As summer transitions into autumn, September in Morelos, Mexico, brings a significant spike in humidity, reaching an impressive 86%. This marks the peak of a rising trend that begins in the warmer months, as humidity levels steadily increase from the more temperate months of January through April. After a relatively dry March and April, where humidity dips to 49% and 47% respectively, the heat of May ushers in a more humid atmosphere that culminates in the lush, tropical feeling of late summer. The soaring levels in September contrast sharply with the drier practices of the earlier months, creating a vibrant, though sometimes stifling, environment that’s characteristic of the region's late rainy season. As October approaches, the humidity begins to ease slightly, settling at 83%, yet still retains a rich, invigorating quality that heralds the end of summer.

September Average Humidity in Morelos

This chart illustrates the average monthly humidity levels in Morelos, 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%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Morelos

In September, Morelos, Mexico, continues to experience extreme UV exposure, with a UV Index of 14. This high rating results in a quick burn time of just 10 minutes, emphasizing the need for sun protection during outdoor activities. Notably, September aligns with a trend seen throughout the warmer months, where UV levels have consistently peaked, notably from February to June, ranging from 11 to 15. As summer transitions into fall, the UV intensity slightly decreases but remains a critical consideration for residents and visitors alike. For a deeper understanding of UV exposure in this region, check out Morelos UV Index.

Maximum UV Index Levels in Morelos for September

The chart shows the monthly maximum UV Index (UVI) for Morelos 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.
JanFebMarAprMayJunJulAugSepOctNovDec9111415151414141412108
Data source: Morelos 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 Morelos

As summer transitions into autumn, September in Morelos, Mexico, offers a delightful balance of sunshine with 294 hours of radiant light. This marks a gentle decline from the peak of 350 hours in May, continuing the trend of abundant sunshine throughout the summer months. As the days grow shorter, this glimpse of warmth serves as a gentle reminder of the sun-soaked days preceding it. With September's bright embrace, residents and visitors alike can savor the tail end of summer while still enjoying ample opportunities for outdoor adventures before cooler months usher in a new season. The steady decline in sunshine hours signals a shift, yet the charm of Morelos remains ever vibrant, inviting all to revel in its splendor.

Monthly Sunshine Duration in Morelos: September Highlighted

The September sunshine duration represents the total number of hours Morelos 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.
JanFebMarAprMayJunJulAugSepOctNovDec229h267h316h328h350h334h335h336h294h294h282h282h
Data source: Morelos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Morelos During September

In September, the likelihood of sunny weather in Morelos, Mexico, drops significantly, with only a 28% chance of clear skies. This marks a stark contrast to the sunnier months earlier in the year, such as February, which boasts an impressive 81% chance of sunshine. As the rainy season descends upon the region, the sun becomes more elusive, mirroring the trends seen in July and August. While early fall may not promise the brightest days, transitioning into October shows a gradual improvement with 51% sunny days on the horizon, offering a refreshing balance as summer winds down.

Percentage of Sunny Days in September in Morelos

The chart illustrates the percentage of sunny days in Morelos 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 Morelos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%81%68%67%69%41%28%44%28%51%66%67%
Data source: Morelos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Morelos in September

In Morelos, Mexico, September marks a transition in daylight duration, as the vibrant summer months draw to a close. With 12 hours of daylight, September maintains the same length experienced in both April and August, offering a balance of light that is ideal for outdoor activities and exploring the rich landscapes of the region. As daylight gradually begins to shorten from this point, following the peak in May through July where the sun graces the area for up to 13 hours, the shift in the season is palpable. This rhythm of daylight not only highlights the beauty of Morelos but also signals the approach of autumn, inviting locals and visitors alike to savor the lingering warmth before the shorter days of fall set in.

Average Daylight Hours in Morelos for September

The chart illustrates the variation in daylight duration in Morelos throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 54m11h 23m12h 1m12h 41m13h 13m13h 29m13h 21m12h 52m12h 14m11h 35m11h 1m10h 44m
Data source: Morelos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Morelos

As September unfolds in Morelos, Mexico, the winds begin to soften, with average wind speeds dipping to 2.4 m/s (5 mph), the lowest of the year. This gentle breeze marks the transition into autumn, following a series of mildly breezy months from April through August, where wind speeds varied between 3.2 to 4.1 m/s (7 to 9 mph). The noticeable decline in wind intensity through the late summer hints at a trend towards calmness, inviting a tranquil ambiance perfect for enjoying the scenic surroundings. As the seasons shift, one can't help but appreciate this peaceful lull before the winds gradually build again in the coming months.

Average September Wind Speed in Morelos

The chart displays monthly wind speed patterns in Morelos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.33.93.64.13.33.22.63.22.4 m/s2.62.72.6
Data source: Morelos September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Morelos Compares to Other Months

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

September and January present starkly contrasting weather patterns. In September, temperatures range from a minimum of 9°C (48°F) to a comfortable maximum of 27°C (81°F), with an average of 18°C (64°F). This month is also quite rainy, with approximately 148 mm (5.8 in) of precipitation spread across 17 days and humidity levels at a high 86%. In contrast, January features colder conditions, with minimum temperatures dropping to -2°C (29°F) and a maximum reaching 26°C (78°F), averaging around 12°C (54°F). Remarkably, January is much drier, receiving only 17 mm (0.7 in) of precipitation over just 2 days, and has lower humidity at 71%. For more details about January weather, you can check this link: Morelos weather in January.

September weather features a broader temperature range, with minimums around 9°C (48°F) and maximums reaching 27°C (81°F), while February tends to be cooler with minimums at 1°C (34°F) and maximums peaking at 29°C (85°F). Despite the occasional warm days in February, the average temperature is lower at 14°C (58°F) compared to September's average of 18°C (64°F). Additionally, September experiences significant precipitation, with 148 mm (5.8 in) over 17 days, whereas February is much drier, with only 9 mm (0.4 in) of rainfall over just 1 day. The humidity also differs greatly, as September boasts a high humidity level at 86%, while February maintains a more moderate humidity at 64%. For more detailed information on the February climate, visit Morelos weather in February.

In comparing the weather of September to that of March, notable differences emerge. September experiences a wider temperature range, with minimums of 9°C (48°F) and maximums reaching up to 27°C (81°F), while the average temperature is around 18°C (64°F). In contrast, March boasts a warmer average temperature of 17°C (63°F) and can see highs of 32°C (90°F).

Additionally, September is characterized by significantly higher precipitation, with 148 mm (5.8 in) falling over 17 days, resulting in a much more humid environment at 86%. Meanwhile, March is quite dry with only 6 mm (0.2 in) of rainfall over just 1 day, resulting in a lower humidity level of 49%. For more specific climate details, you can check Morelos weather in March.

September and April exhibit notable differences in weather patterns. September experiences temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of 18°C (64°F). It also sees significant rainfall, with 148 mm (5.8 in) spread over 17 days and high humidity at 86%. In contrast, April generally presents milder conditions, with temperatures from a low of 5°C (40°F) to a high of 32°C (89°F) and an average temperature of 19°C (66°F). The month is characterized by minimal precipitation, only 7 mm (0.3 in) over just 1 day, and notably lower humidity at 47%. For more detailed insights, check out Morelos weather in April.

September and May exhibit notable differences in weather patterns. In September, the temperatures range from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of around 18°C (64°F). This month is characterized by higher precipitation levels, with 148 mm (5.8 in) falling over 17 days and a high humidity of 86%. In contrast, May offers warmer conditions, with temperatures starting at 8°C (47°F) and peaking at 34°C (93°F), averaging 21°C (70°F). Precipitation is much lighter, at only 26 mm (1.0 in) over just 5 days, accompanied by a comfortable humidity level of 55%. For additional insights into the weather during this month, check out Morelos weather in May.

September and June exhibit notable differences in weather conditions. In June, temperatures range from a minimum of 10°C (50°F) to a maximum of 34°C (93°F), showcasing a warm average of 20°C (69°F), while September experiences cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 27°C (81°F), leading to an average of 18°C (64°F). Additionally, June tends to be drier, with only 110 mm (4.3 in) of precipitation over 11 days, compared to September's higher rainfall of 148 mm (5.8 in) over 17 days. Humidity levels are also lower in June at 77%, contrasted with September's higher humidity of 86%. For more detailed insights into June weather, visit Morelos weather in June.

September and July present distinct weather patterns. In September, temperatures range from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of 18°C (64°F). The month experiences substantial rainfall, with 148 mm (5.8 in) spread over 17 days and a high humidity level of 86%. In contrast, July is warmer with minimum temperatures of 11°C (51°F) and a maximum of 30°C (85°F), averaging 19°C (66°F). Precipitation in July is slightly higher at 149 mm (5.9 in) over 15 days, accompanied by lower humidity at 82%. For more detailed insights into July's climate, check out Morelos weather in July.

In comparing the weather between August and September, we see a noticeable decline in maximum temperatures, with September peaking at 27°C (81°F) compared to August's 30°C (86°F). The average temperature also shifts slightly lower, from 19°C (67°F) in August to 18°C (64°F) in September. Additionally, September experiences significantly higher precipitation, totaling 148 mm (5.8 in) over 17 days, compared to August's 89 mm (3.5 in) over just 10 days. Humidity increases modestly from 83% in August to 86% in September, contributing to a more subdued and wetter atmosphere. For more details on August weather, you can visit Morelos weather in August.

September and October display notably different weather patterns. September averages a minimum temperature of 9°C (48°F) and a maximum of 27°C (81°F), with an overall average of 18°C (64°F). It experiences significant precipitation of 148 mm (5.8 in) over 17 days and maintains a high humidity level of 86%. In contrast, October offers slightly cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 28°C (82°F), averaging 17°C (62°F). The month sees much less rain, with only 48 mm (1.9 in) of precipitation across 7 days and a humidity of 83%. For more details, you can check out Morelos weather in October.

September and November present a stark contrast in weather patterns. In September, temperatures range from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of 18°C (64°F). This month is characterized by significant rainfall, receiving 148 mm (5.8 in) over 17 days and maintaining high humidity levels at 86%. In contrast, November experiences much cooler temperatures, with a minimum of -3°C (28°F) and a similar maximum of 27°C (81°F), averaging around 14°C (58°F). The precipitation dramatically decreases to just 16 mm (0.6 in) over 2 days, and humidity falls to 80%. For more detailed insights, you can visit Morelos weather in November.

In comparing the weather of September and December, we see a significant shift in temperature and precipitation patterns. September features milder temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), and experiences considerably higher precipitation of 148 mm (5.8 in) spread across 17 days, which contributes to the high humidity of 86%. In contrast, December brings cooler temperatures, with a minimum of -8°C (18°F) and an average of 12°C (54°F), reaching a maximum of 26°C (79°F). This month sees much less precipitation at only 12 mm (0.5 in) over just 1 day, along with lower humidity levels of 83%. For a detailed overview of December weather patterns, you can visit Morelos weather in December.

Compare Morelos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Morelos

As September rolls in, Morelos experiences a shift in weather that sets it apart from the rest of the year. With a higher humidity level and frequent rainfall, this month often feels more vibrant and lush, offering a refreshing change. Temperatures hover around a comfortable average, contrasting with the hotter summer months, while the increased precipitation contributes to the region's rich greenery. While it’s a time of transformation, visitors can expect some wet days, making it a unique opportunity to enjoy Morelos' natural beauty. For a deeper understanding of the region's climatic patterns, check out Morelos Climate.