September Weather in Morelos, Mexico

Last updated: April 22, 2025

Experience the unique charm of Morelos, Mexico in September, where the weather showcases a delightful blend of moderate temperatures and lush landscapes. Expect maximum highs around 26°C (79°F) and average daily temperatures hovering around 17°C (63°F), perfect for outdoor adventures. The month brings a refreshing minimum of 8°C (46°F) at night, allowing for cozy evenings. With a substantial precipitation total of 363 mm (14.3 in) across 28 rainy days, the region thrives in humidity levels of 82%, creating a vibrant environment that nourishes its stunning flora. Whether you're exploring the lush terrain or enjoying the local culture, September in Morelos offers a captivating experience enveloped in the refreshing embrace of nature's bounty.

September Temperature in Morelos

In September, Morelos, Mexico, experiences a delightful blend of warmth and freshness, with temperatures ranging from a minimum of 8°C (46°F) to a comfortable maximum of 26°C (79°F). The monthly average settles around 17°C (63°F), signaling a transition into the cooler autumn months. This slight dip in temperature, compared to the previous months of summer, marks a refreshing change, inviting both locals and visitors to enjoy outdoor activities amid the vibrant natural scenery. As the rainfall begins to taper off, September’s climate offers a pleasant balance, showcasing Morelos's charming allure as it prepares for the cooler days ahead.

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.
JanFebMarAprMayJunJulAugSepOctNovDec545760636564636363615755
Data source: Temperature data for Morelos 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 Morelos

In September, Morelos, Mexico, showcases its wettest month of the year, with precipitation soaring to an impressive 363 mm (14.3 in) over 28 days of rain. This peak not only reflects the region's heightened moisture but also signifies the culmination of the rainy season, where lush landscapes thrive. The month’s rainfall continues the upward trend observed since June, which starts with 264 mm (10.4 in), and effectively wraps up an intense summer of moisture, peaking in August with 322 mm (12.7 in). As the dry season approaches in October, when precipitation drops to 230 mm (9.1 in), September stands out as a remarkable month, highlighting both the power and beauty of nature's cycles in this vibrant region.

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.
JanFebMarAprMayJunJulAugSepOctNovDec70507911315526424332236323110140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Morelos

In September, Morelos, Mexico, experiences a significant rise in humidity, reaching 82% as the region transitions from the summer months. This increase marks a notable shift from the drier conditions of July and August, where humidity levels dipped to 68% and 70%, respectively. As the rainy season continues, the air becomes noticeably more humid, foreshadowing the even wetter conditions that follow in October, when humidity peaks at 91%. Overall, September acts as a bridge between the drier summer and the moisture-laden autumn, reflecting the natural cyclical patterns of climate in Morelos.

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.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Morelos

The UV Index in Morelos, Mexico shows a consistent trend of high to extreme levels during the summer months, peaking in April and May at 15. As September rolls in, the UV Index hovers at 14, still categorized as extreme, indicating that sun protection remains essential. With a burn time of just 10 minutes, residents and visitors alike must stay vigilant against UV exposure. This extreme light intensity lingers into October before gradually decreasing towards the end of the year. For detailed insights on UV levels throughout the year, 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141413109
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

In September, Morelos, Mexico, experiences a delightful embrace of sunshine with 272 hours of sun, marking a significant transition as the summer warmth begins to ebb. This month continues the region’s trend of abundant sunlight, showcasing a consistent increase from January's 223 hours to the peak in May at 319 hours. While the sun's presence diminishes slightly from the summer's climax, September's hours remain vibrant compared to the earlier months, emphasizing a lingering summer feel before the cooler autumn days of October and beyond. As the days grow shorter, September stands as a bridge, inviting visitors to enjoy the region's beauty bathed in golden light.

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.
JanFebMarAprMayJunJulAugSepOctNovDec223h266h308h309h319h284h313h303h272h284h279h288h
Data source: Morelos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Morelos During September

In Morelos, Mexico, September marks a notable dip in sunny weather, with only a 14% chance of sun. This low probability follows the trend of increasing cloud cover as the monsoon season takes hold, making it one of the cloudier months of the year. Unlike the sunnier skies of February and March, which boast 65% and 56% chances respectively, September's weather is influenced by the preceding months of heightened rainfall in June and July, where chances of sunshine plummet to 11% and 22%. As the year progresses towards October, sunny conditions gradually improve to 25%, but September remains a time when gloomy overcasts dominate the landscape, leading travelers to prepare accordingly.

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.
JanFebMarAprMayJunJulAugSepOctNovDec37%65%56%45%35%11%22%26%14%25%30%62%
Data source: Morelos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Morelos in September

As September unfolds in Morelos, Mexico, daylight begins to soften its embrace, offering about 12 hours of sunshine—a continuation of the trend seen since spring. Following the long, sun-drenched days of May through July, which basked in 13 hours of daylight, September signals a gentle transition towards the shorter days of fall. This gradual decrease mirrors the rhythm of the seasons, providing a perfect balance of light for outdoor activities while hinting at the cozy evenings to come. As daylight diminishes in October to 11 hours, one can appreciate the warm and welcoming atmosphere that September's lingering light fosters in this vibrant locale.

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.
JanFebMarAprMayJunJulAugSepOctNovDec11h 4m11h 29m12h 2m12h 36m13h 4m13h 17m13h 10m12h 45m12h 13m11h 39m11h 10m10h 56m
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 gentle caress of the wind begins to soften, with average wind speeds dipping to 1.5 m/s (3 mph). This slight reduction marks a transition from the busier summer months, where winds maintained a steadier pace of 1.6 to 2.1 m/s from April to August. The diminishing breeze in September evokes a serene atmosphere, inviting locals and visitors alike to savor the changing season and the lush beauty of the landscape. Looking ahead, the winds pick up again in October, returning to 1.7 m/s (4 mph), suggesting that while September offers a quieter interlude, the vibrancy of autumn is just around the corner.

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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.92.02.11.81.61.61.71.5 m/s1.71.61.8
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.

In September, the weather is generally warmer with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), averaging around 17°C (63°F). However, it experiences significant rainfall, with a total precipitation of 363 mm (14.3 in) spread over 28 days, contributing to a high humidity level of 82%. In contrast, January brings cooler temperatures, with a minimum of 2°C (36°F) and an average of 12°C (54°F), also reaching a maximum of 26°C (79°F). Rainfall is notably lighter, with only 70 mm (2.7 in) over 11 days, while humidity remains relatively high at 84%. For a deeper look into January's weather specifics, you can check Morelos weather in January.

September and February present distinct weather patterns, showcasing the transition between the end of summer and the onset of late winter. In September, temperatures range from a chilly 8°C (46°F) at night to a warm 26°C (79°F) during the day, with an average of 17°C (63°F). This month experiences significant rainfall, with 363 mm (14.3 in) over 28 days, contributing to high humidity levels of 82%. In contrast, February features a narrower range of temperatures, with nighttime lows of 1°C (35°F) and daytime highs reaching 29°C (85°F), averaging 14°C (58°F). Precipitation is markedly less at 50 mm (2.0 in) across just 9 days, and humidity is slightly lower at 78%. For more information on February weather, see Morelos weather in February.

September and March present distinct weather patterns, showcasing the transition from late summer to early spring. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), with an average of 17°C (63°F). This month also sees significant rainfall, with 363 mm (14.3 in) of precipitation spread over 28 days, contributing to a high humidity level of 82%.

In contrast, March offers a cooler experience, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 29°C (84°F), and an average of 15°C (60°F). This month is characterized by much less precipitation at 79 mm (3.1 in) over 13 days, and a lower humidity level of 75%. For more information on March weather, you can visit Morelos weather in March.

When comparing the weather in September and April, it’s clear that both months have similar average temperatures around 17°C (63°F). However, September tends to be cooler at night, with a minimum temperature of 8°C (46°F), while April's nighttime low is slightly warmer at 7°C (44°F). April generally enjoys more sunshine and higher maximum temperatures, reaching up to 30°C (86°F), compared to September's peak of 26°C (79°F). Additionally, September is much wetter, with 363 mm (14.3 in) of precipitation spread over 28 days, whereas April sees significantly less rain at 113 mm (4.5 in) over 18 days. The humidity also plays a role, being higher in September at 82% compared to April's 70%. For more detailed insights, check out Morelos weather in April.

In September, the weather tends to be cooler and wetter compared to May, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F). This month also experiences higher humidity at 82% and significant precipitation of 363 mm (14.3 in) over 28 days. In contrast, May presents milder conditions with temperatures from a minimum of 10°C (50°F) to a maximum of 29°C (84°F), along with less rainfall totaling 155 mm (6.1 in) over just 23 days and slightly lower humidity at 77%. For more details on May weather, you can visit Morelos weather in May.

September typically experiences cooler temperatures compared to June, with average highs of 26°C (79°F) compared to June's 28°C (83°F). The minimum temperatures in September are slightly lower at 8°C (46°F), while June starts at 10°C (51°F). Additionally, September is characterized by significantly higher precipitation, measuring 363 mm (14.3 in) over 28 days, compared to June's 264 mm (10.4 in) during the same number of days. The humidity also tends to be higher in September at 82%, compared to June's 76%. For a detailed look into June weather specifically, visit Morelos weather in June.

In comparing the weather of September and July, September tends to be cooler overall, with a minimum temperature of 8°C (46°F) compared to July's minimum of 11°C (52°F). Both months have similar average temperatures around 17°C (63°F to 64°F), but July's maximum temperature is slightly lower at 25°C (77°F) than September's 26°C (79°F). Additionally, September experiences significantly higher precipitation at 363 mm (14.3 in) over 28 days, while July's rainfall is notably less at 243 mm (9.6 in) across 30 days. The humidity is also higher in September at 82%, contrasted with July's 68%. For a closer look at July's weather specifics, you can visit Morelos weather in July.

In comparing the weather of September and August, we see some notable differences. September tends to be slightly cooler at night, with a minimum temperature of 8°C (46°F) compared to August's 10°C (50°F), while both months share an average high of 26°C (79°F). However, September experiences significantly more rainfall, with a total of 363 mm (14.3 in) over 28 days, compared to August's 322 mm (12.7 in) accumulated over 30 days. Additionally, September's humidity is higher at 82%, compared to August's 70%, making the air feel more moisture-laden by the end of summer. For more detailed information, check out Morelos weather in August.

September tends to be warmer on average, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (79°F). In contrast, October experiences slightly cooler temperatures, with a minimum of 6°C (44°F) and an average of 16°C (61°F), while still hitting a maximum of 26°C (80°F). Precipitation is also notably higher in September, totaling 363 mm (14.3 in) over 28 days, compared to October's 230 mm (9.1 in) spread over 24 days. Humidity is slightly more pronounced in October at 91%, compared to September's relative comfort of 82%. For more detailed insights, check out Morelos weather in October.

September and November exhibit noticeable differences in weather patterns. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 26°C (79°F), with an average of 17°C (63°F). The month is notably wet, receiving 363 mm (14.3 in) of precipitation across 28 days, resulting in a humidity level of 82%. In contrast, November brings cooler temperatures, with a minimum of 1°C (33°F) and an average of 14°C (57°F), peaking at 25°C (77°F). Rainfall decreases significantly to 101 mm (4.0 in) over 14 days, coupled with a slightly higher humidity at 89%. For a more detailed look, you can visit Morelos weather in November.

September and December present quite different weather experiences. September enjoys warmer temperatures, with daily averages around 17°C (63°F) and highs reaching up to 26°C (79°F), accompanied by significant rainfall of 363 mm (14.3 in) spread across 28 days. In contrast, December features cooler temperatures, with averages of 13°C (55°F) and highs peaking at 24°C (76°F), but much less precipitation, totaling only 40 mm (1.6 in) over 8 days. Humidity remains high in both months, at 82% in September and 88% in December, but the overall climate shift from September to December is marked by a transition from warmer, wetter conditions to cooler, drier weather. For more detailed information, you can check Morelos weather in December.

Compare Morelos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Morelos

As September arrives in Morelos, the weather takes on a distinct character that sets it apart from other months. This period marks the transition into the rainy season, with increased humidity and frequent precipitation, accumulating to a notable 363 mm throughout the month. While temperatures remain mild, hovering around a comfortable 17°C on average, the daily highs can still reach 26°C, providing a warm contrast to the cooler nights that dip down to 8°C. This unique combination of warmth and moisture creates a vibrant landscape but also necessitates preparation for the frequent showers. For a deeper dive into the climatic nuances that define Morelos throughout the year, explore Morelos Climate.