September Weather in Morelos, Mexico

Last updated: April 22, 2025

In September, Morelos, Mexico, experiences a mix of warm and humid weather, with maximum temperatures reaching 27°C (81°F) and an average of 19°C (66°F). The minimum temperature dips to 11°C (53°F), creating a comfortable range throughout the month. However, precipitation is significant, totaling 148 mm (5.8 in) over approximately 20 days, contributing to the lush landscape. With an average humidity of 85%, visitors should be prepared for a vibrant atmosphere, marked by occasional rain showers and cooler evenings, making it a unique time to explore this beautiful region.

September Temperature in Morelos

In September, Morelos, Mexico, offers a delightful transition from the warm summer months to a milder autumn. With minimum temperatures hovering around 11°C (53°F) and average highs reaching 27°C (81°F), visitors can enjoy pleasant weather, perfect for exploring the region's natural beauty. This month marks a slight dip in temperature from the peak summer months of July and August, which both recorded maximums around 28°C (82°F). The overall trend indicates a gradual cooling as the year progresses, making September an inviting time to experience Morelos’ vibrant culture while enjoying comfortable, temperate conditions.

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.
JanFebMarAprMayJunJulAugSepOctNovDec596267707168666666656259
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 a notable transition in Morelos, Mexico, as the region experiences significant rainfall, with 148 mm (or 5.8 inches) falling over 20 days. This month sits just below August's peak, showcasing the tail end of the rainy season, where precipitation starts to wane yet remains substantial. Following the dramatic upticks from June through August, September's rainfall levels demonstrate a slight decline, yet they still deliver a robust amount of moisture essential for the landscape's revival after the dry months. The persistent rain during September not only contributes to the lush greenery but also prepares the region for the upcoming drier season in October. This rhythmic pattern emphasizes the climatic transition that characterizes Morelos, ensuring that the rich biodiversity remains vibrant and thriving.

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.
JanFebMarAprMayJunJulAugSepOctNovDec811151060131146166148753810
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Morelos

In Morelos, Mexico, September marks a peak in humidity levels, reaching a significant 85%, which mirrors the high humidity of the preceding months, July and August. This late summer trend reflects a gradual increase in moisture that begins in the dry winter months, with January at a more moderate 70%. As the year progresses into the warmer months, humidity levels climb, with a noticeable spike in June and July as the rainy season commences. Following September, a slight decrease in humidity is observed, transitioning towards October's 79%. This pattern underscores Morelos' tropical climate, where humidity plays a crucial role in defining the region's lush landscapes and vibrant ecosystems throughout the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Morelos

In September, Morelos, Mexico experiences a consistent UV Index of 14, categorizing it in the extreme exposure range, where skin can burn in just 10 minutes. This trend of elevated UV levels stretches back through the summer months and into early autumn, with similar indices recorded from February to August. Interestingly, while the UV readings slightly decrease in October, they still remain classified as extreme, reminding residents and visitors alike of the need for proper skin protection year-round. If you're planning outdoor activities during this sunny month, be sure to check the local UV forecasts for safe sun exposure. For more detailed information, visit 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.
JanFebMarAprMayJunJulAugSepOctNovDec10111415141414141412108
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

September in Morelos, Mexico, offers a splendid 272 hours of sunshine, marking a gentle decline from the peak brightness of summer. As the year progresses, hours of sunshine gradually increase from January's modest 237 hours, peaking at 328 hours in May. This trend of sunny days begins to wane as summer transitions into fall, but September still basks in a nourishing amount of sunlight, perfect for outdoor adventures. With October promising 284 hours, the region remains beautifully illuminated—a testament to Morelos' year-round charm and warmth. Enjoy the vibrant landscape bathed in the golden hues of the sun as it prepares for the cooler months ahead.

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.
JanFebMarAprMayJunJulAugSepOctNovDec237h274h319h321h328h283h294h287h272h284h278h289h
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 is usually marked by a relatively low 17% chance of sunny weather, aligning with the region's trend of increasing cloud cover as the rainy season peaks. This dip follows the more promising months of February and March, which boast sunlit skies at 93% and 81%, respectively. As summer approaches, the likelihood of sunshine dwindles dramatically, reaching a mere 13% in June and only 16% in July. Although conditions begin to improve slightly by October (33%), September typically offers less opportunity for sun, making it a month more suited for those who enjoy the lush green scenery brought on by the rains rather than bright, sunny days.

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.
JanFebMarAprMayJunJulAugSepOctNovDec60%93%81%69%58%13%16%21%17%34%66%71%
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 3m13h 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

In September, Morelos, Mexico, experiences a gentle breeze with an average wind speed of 1.4 m/s (about 3 mph), slightly more than the calmest summer months of July and August, which see speeds drop to 1.2 m/s and 1.3 m/s, respectively. This subtle uptick reflects a gradual transition towards the slightly windier months of the fall. Moving from summer to autumn, the winds remain predominantly mild, with the average throughout the year influenced by the tranquil summer heat. As the landscape shifts, the soft winds of September hint at the approaching change in seasons, creating an inviting atmosphere for outdoor activities and exploration.

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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.91.71.91.61.51.21.31.4 m/s1.51.51.5
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 average temperatures around 19°C (66°F) and highs reaching up to 27°C (81°F), accompanied by significant precipitation of 148 mm (5.8 in) over approximately 20 days. The humidity is notably high at 85%, contributing to a muggy atmosphere. In contrast, January experiences cooler temperatures, averaging 15°C (59°F) and peaking at 29°C (84°F), but it has minimal rainfall of just 8 mm (0.3 in) over only 2 days, and lower humidity at 70%. This stark difference in weather conditions highlights the transition from the wet and humid late summer to a drier and cooler winter. For more details about January weather, you can visit Morelos weather in January.

In comparing the weather of September and February, September experiences a much warmer range, with minimum temperatures around 11°C (53°F) and maximums hitting 27°C (81°F), while February sees cooler minimums at 5°C (41°F) and can peak at 30°C (86°F). Precipitation is significantly higher in September, averaging 148 mm (5.8 in) over 20 days compared to February's meager 11 mm (0.4 in) spread across just 2 days. Additionally, humidity levels are notably higher in September at 85%, contrasting with February's 64%. For a more detailed look at February’s climate, check out Morelos weather in February.

In September, the weather is characterized by milder temperatures, with a minimum of 11°C (53°F), an average of 19°C (66°F), and a maximum of 27°C (81°F). This month also sees significant rainfall, with 148 mm (5.8 in) of precipitation spread over 20 days, contributing to a high humidity level of 85%. In contrast, March experiences slightly cooler nights with a minimum of 8°C (46°F) but can reach higher maximum temperatures of 31°C (89°F) during the day. Rainfall is minimal in March, with only 15 mm (0.6 in) across just three days and a much lower humidity of 54%. For a deeper understanding of the weather variations, you can check Morelos weather in March.

When comparing the weather in September and April, we see notable differences in temperature, precipitation, and humidity. September experiences a milder range of temperatures, with averages around 19°C (66°F) and a maximum of 27°C (81°F), while April heats up significantly, reaching a maximum of 34°C (93°F) and averaging 21°C (70°F). The precipitation in September is considerably higher, with 148 mm (5.8 in) over 20 days, compared to just 10 mm (0.4 in) over 3 days in April. Additionally, September's humidity is quite high at 85%, while April enjoys a more comfortable 61%. For those looking to explore the conditions during this month, you can check out Morelos weather in April.

September and May exhibit distinct weather profiles. In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 19°C (66°F). This month is characterized by high humidity at 85% and significant rainfall, averaging 148 mm (5.8 in) over 20 days. In contrast, May features warmer temperatures, with a minimum of 11°C (51°F) and a maximum soaring to 34°C (94°F), averaging 21°C (71°F). The precipitation levels are much lower in May, totaling 60 mm (2.4 in) across just 10 days, and the humidity is notably lower at 75%. For more details on May's weather, visit Morelos weather in May.

In comparing the weather of September and June, we see some notable differences. September generally has a lower average temperature, ranging from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), while June tends to be warmer, with temperatures from 12°C (54°F) to 33°C (92°F). Both months experience significant precipitation, but September sees slightly more rainfall at 148 mm (5.8 in) over 20 days compared to June's 131 mm (5.2 in) over 19 days. Humidity levels are comparable, with September at 85% and June at 83%, making both months feel quite humid. For more detailed information on June weather, you can check Morelos weather in June.

In comparing the weather of September and July, we find that both months have similar average temperatures, hovering around 19°C (66°F). However, July tends to be slightly warmer with a maximum temperature of 28°C (83°F) compared to September's 27°C (81°F). Precipitation levels are fairly close as well, with September receiving 148 mm (5.8 in) over 20 rainy days, while July sees slightly less at 146 mm (5.7 in) over 26 days. Interestingly, September experiences a higher humidity level at 85%, compared to July's 83%. For more details on July weather specifics, you can visit Morelos weather in July.

In comparing the weather between August and September, we notice that both months feature similar average temperatures, with September's average at 19°C (66°F) and August's also at 19°C (66°F). However, September has slightly cooler minimum and maximum temperatures, reaching a minimum of 11°C (53°F) and a maximum of 27°C (81°F), compared to August's 12°C (54°F) and 28°C (82°F). Precipitation is notably higher in August, with 166 mm (6.5 in) over 25 days, while September experiences 148 mm (5.8 in) across 20 days. Both months maintain a consistent humidity level of 85%. For more details on August's weather, check this link: Morelos weather in August.

September tends to be warmer and more humid than October, with average temperatures peaking at 19°C (66°F) and reaching a maximum of 27°C (81°F). Additionally, it experiences higher precipitation, with 148 mm (5.8 in) spread over 20 days and an average humidity of 85%. In contrast, October sees slightly cooler temperatures, with an average of 18°C (65°F) and a maximum of 28°C (83°F), while also significantly reducing rainfall to 75 mm (3.0 in) over just 12 days, contributing to a lower humidity of 79%. For more detailed information on October weather, you can check Morelos weather in October.

September and November weather in Morelos exhibit notable differences. In September, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 19°C (66°F). This month is characterized by significant precipitation, totaling 148 mm (5.8 in) over approximately 20 rainy days and a high humidity level of 85%. In contrast, November offers cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 29°C (84°F), averaging 17°C (62°F). Rainfall decreases considerably to just 38 mm (1.5 in) across 5 days, and humidity drops to 76%. For more detailed information, check out Morelos weather in November.

In September, the weather is generally milder, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (81°F) and an average of 19°C (66°F). This month sees significant rainfall, with 148 mm (5.8 in) of precipitation spread over about 20 days, and humidity levels are relatively high at 85%. In contrast, December experiences cooler temperatures, with a minimum of 3°C (38°F) and an average of 15°C (59°F), while still reaching similar maximums as September at 27°C (80°F). The month is significantly drier, with only 10 mm (0.4 in) of precipitation over just 2 days, leading to lower humidity levels at 74%. For more information about the weather in December, 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 unfolds in Morelos, it brings a distinct shift in weather characterized by increased humidity and notable rainfall. With an average temperature hovering around a mild 19°C, the month stands out from the typically warmer summer months and drier conditions experienced earlier in the year. The atmosphere is often filled with a refreshing dampness, as rainfall occurs on around 20 days throughout the month, contributing to a total of 148 mm of precipitation. This unique blend of weather elements not only enhances the lush green landscape but also offers a cooler reprieve, making September a refreshing transition into the fall season. For more insights into the seasonal patterns, visit Morelos Climate.