September Weather in Ixtapa, Mexico

Last updated: April 22, 2025

September in Ixtapa, Mexico offers a tropical climate, featuring a maximum temperature of 31°C (87°F) and an average of 27°C (81°F), making it a warm escape for travelers. Nonetheless, visitors should prepare for considerable rainfall, with a total of 277 mm (10.9 in) spread across 22 days, contributing to a humidity level of 78%. This month is ideal for those who appreciate lush landscapes and vibrant sunsets, though a flexible itinerary is recommended to navigate the frequent showers.

September Temperature in Ixtapa

As summer transitions to fall, Ixtapa, Mexico experiences warm and inviting temperatures in September. Daily highs reach a comfortable 31°C (87°F), while nighttime lows remain mild at 24°C (76°F). With an average temperature of 27°C (81°F), this month mirrors the warmth seen in August, showcasing a lovely consistency throughout late summer. The gentle heat encourages both relaxation on the stunning beaches and exploration of the vibrant local culture. As tropical weather lingers, September is an ideal time for travelers seeking sunny skies and balmy evenings.

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

The chart illustrates September temperature patterns in Ixtapa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec777777777880828181808078
Data source: Temperature data for Ixtapa 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 Ixtapa

September marks a peak in precipitation for Ixtapa, Mexico, with 277 mm (10.9 in) of rain typically gracing the region over 22 days. This month sits at the crescendo of the wet season, following August’s impressive total of 254 mm (10.0 in). The significant rainfall can be attributed to the region's tropical climate, as it continues to embrace the summer monsoon. After such a deluge, the landscape is revitalized, showcasing vibrant greenery and lush vegetation. As October approaches, while precipitation slightly decreases to 253 mm (10.0 in), the wet season remains strong, retaining the rhythm established in the prior months. This trend highlights Ixtapa's nature of experiencing heavy rains, particularly in the late summer and early fall, as it nourishes the local ecosystem.

September Precipitation Trends in Ixtapa

The chart displays monthly precipitation patterns in Ixtapa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5400923197254277253414
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ixtapa

As September rolls in, Ixtapa, Mexico experiences a slight dip in humidity, registering at 78%—a mild decrease from the peak levels observed during the sultry summer months of July and August, which saw humidity levels rise to 78% and 79%, respectively. This transition signals the gradual onset of the autumn season, where the humidity begins to ease, following a steady increase from January's relatively moderate 66%. Overall, September's humidity reflects a trend of high moisture typical for this coastal paradise during the late summer, yet hints at a forthcoming reprieve as it heads towards the cooler months ahead.

September Average Humidity in Ixtapa

This chart illustrates the average monthly humidity levels in Ixtapa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec66%64%63%69%73%76%78%79%78%75%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ixtapa

In September, Ixtapa, Mexico, continues to bask in the sun, maintaining a UV Index of 13, categorized as extreme. This level of UV intensity notably indicates that even a short burn time of just 10 minutes can lead to skin damage without adequate protection. Throughout the year, September aligns closely with the peak UV exposures observed from June to August, underscoring the need for vigilant sun safety during this month. As summer transitions to fall, the UV Index slowly begins its descent, but for now, it remains critical to embrace protective measures to enjoy the vibrant beach life safely. For more detailed information on Ixtapa's UV Index, visit Ixtapa UV Index.

Maximum UV Index Levels in Ixtapa for September

The chart shows the monthly maximum UV Index (UVI) for Ixtapa 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.
JanFebMarAprMayJunJulAugSepOctNovDec911131313141312131198
Data source: Ixtapa 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 Ixtapa

September in Ixtapa, Mexico, ushers in a gentle transition from the vibrant summer months, with the sun gracing the skies for 267 hours. While this marks a slight dip from the highs of May’s 335 hours, the sunshine remains a constant companion, ensuring the beaches still bask in warmth. As the rainy season approaches, the days begin to shorten subtly, yet the lingering glow of summer can still be felt. Interestingly, September retains a charm all its own; it's a perfect time to enjoy the beautiful sunsets while experiencing the quieter atmosphere before the rush of autumn. The trend of enduring sunshine continues, making Ixtapa an inviting destination for sun-seekers even as the season shifts.

Monthly Sunshine Duration in Ixtapa: September Highlighted

The September sunshine duration represents the total number of hours Ixtapa 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.
JanFebMarAprMayJunJulAugSepOctNovDec241h278h318h323h335h285h308h273h267h274h283h294h
Data source: Ixtapa September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ixtapa During September

In Ixtapa, Mexico, September is characterized by a notably low likelihood of sunny weather, with only 16% of days basking in sunshine. This marks a significant drop when compared to the sunnier months preceding it, such as February and March, which boast chances upwards of 80%. The trend clearly shows a shift as summer progresses into fall, with June, July, and August also experiencing minimal sunlight, dragging down the overall chances for September. As October approaches, the likelihood of sun begins to recover slightly to 34%, hinting at a gradual return of clearer skies. Overall, those looking to soak in the sun should be aware that September’s overcast tendencies signal the tail end of the summer season in this coastal paradise.

Percentage of Sunny Days in September in Ixtapa

The chart illustrates the percentage of sunny days in Ixtapa 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 Ixtapa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%85%83%81%62%13%20%15%16%34%63%77%
Data source: Ixtapa September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ixtapa in September

As September rolls into Ixtapa, Mexico, the rhythm of daylight is a captivating dance, offering 12 hours of sun-soaked bliss. This month maintains the steady brightness seen in August, following a gradual increase in daylight from 11 hours in the winter months of January and February. The trend peaks in June and July, where the sun extends its embrace to 13 hours, before gently tapering off into October. This consistent balance of light not only highlights the region's tropical appeal but also sets the perfect backdrop for outdoor adventures and leisurely beach days as summer wanes and fall approaches.

Average Daylight Hours in Ixtapa for September

The chart illustrates the variation in daylight duration in Ixtapa throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 11m11h 33m12h 3m12h 32m12h 57m13h 9m13h 2m12h 40m12h 12m11h 42m11h 17m11h 4m
Data source: Ixtapa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ixtapa

In Ixtapa, Mexico, the gentle touch of the September wind whispers of change as summer begins to yield to autumn. With an average wind speed of 2.2 m/s (5 mph), this month mirrors the calmness seen earlier in the year, particularly notable in March and July. As the winds build from 2.2 m/s in March to a peak of 3.0 m/s in June, September gracefully transitions back to a lighter breeze, bringing with it a refreshing sense of tranquility. This consistent pattern not only makes for pleasant beach days but also invites a reflective ambiance, allowing visitors to enjoy the serene beauty of Ixtapa. Embrace the mild winds and soak in the relaxed vibe that September has to offer.

Average September Wind Speed in Ixtapa

The chart displays monthly wind speed patterns in Ixtapa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.42.22.62.53.02.22.82.2 m/s2.32.02.1
Data source: Ixtapa September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ixtapa Compares to Other Months

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

In comparing the weather between September and January, September tends to be significantly warmer and much wetter. With average temperatures ranging from 24°C (76°F) to 31°C (87°F) and a whopping 277 mm (10.9 in) of precipitation spread over 22 days, September is characterized by high humidity at 78%. In contrast, January presents a milder climate, with temperatures averaging 21°C (69°F) to 30°C (87°F) and a drastic reduction in precipitation to just 4 mm (0.2 in) over a single day. The humidity also drops to 66%, making January a more comfortable month overall. For more details on the January weather, you can visit Ixtapa weather in January.

September and February exhibit notably different weather patterns. In September, temperatures range from a warm minimum of 24°C (76°F) to a maximum of 31°C (87°F), with an average of 27°C (81°F). This month is also marked by significant rainfall, totaling 277 mm (10.9 in) over 22 days, accompanied by high humidity levels at 78%. In contrast, February experiences milder conditions with minimum temperatures around 19°C (67°F) and a maximum of 30°C (86°F), averaging 25°C (77°F). Precipitation in February is remarkably low, with just 4 mm (0.1 in) recorded over no rainy days, and the humidity decreases to 64%. For more details, check out Ixtapa weather in February.

In September, the weather is typically warm and wet, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (87°F) and an average of 27°C (81°F). This month sees significant rainfall, accumulating to 277 mm (10.9 in) over 22 days, alongside high humidity levels at 78%. In contrast, March offers much drier and slightly cooler conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (84°F) and an average of 25°C (77°F). Notably, March experiences no rainfall and a lower humidity of 63%, making it a favorable time for outdoor activities. For more detailed weather information, you can visit Ixtapa weather in March.

When comparing the weather in September and April, September tends to be significantly warmer and wetter. September sees average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), accompanied by high humidity at 78% and substantial rainfall of 277 mm (10.9 in) over 22 days. In contrast, April offers milder conditions with temperatures averaging from 20°C (69°F) to 30°C (86°F) and notably lower humidity at 69%. Furthermore, April experiences no rainfall, making it a much drier month. For more details on April's climate, check out Ixtapa weather in April.

September and May exhibit distinct differences in weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), with an average temperature of 27°C (81°F). This month is characterized by significantly higher precipitation, totaling 277 mm (10.9 in) over 22 days, resulting in a humid atmosphere with a humidity level of 78%. In contrast, May experiences milder conditions, with temperatures ranging from 21°C (71°F) to 30°C (86°F) and an average of 26°C (78°F). Moreover, May is notably drier, receiving only 9 mm (0.3 in) of rain over just 1 day, coupled with a lower humidity level of 73%. For more information, you can check Ixtapa weather in May.

In September, the weather is characterized by slightly warmer temperatures with a minimum of 24°C (76°F) and a maximum of 31°C (87°F), maintaining an average of 27°C (81°F). However, it also sees increased rainfall, accumulating 277 mm (10.9 in) over 22 days, along with a high humidity level of 78%. In contrast, June offers a comparable average temperature of 27°C (80°F) but has a slightly lower maximum of 32°C (89°F) and a minimum of 22°C (72°F). June experiences less precipitation, totaling 231 mm (9.1 in) across 17 days, and a marginally lower humidity at 76%. For more detailed weather insights, you can visit Ixtapa weather in June.

When comparing the weather in September and July, it's clear that both months experience warm temperatures, with July having a slightly higher average temperature of 28°C (82°F) compared to September's 27°C (81°F). The maximum temperatures are also comparable, with July peaking at 32°C (89°F) and September reaching 31°C (87°F). However, September sees significantly more precipitation, with 277 mm (10.9 in) over 22 days, while July has a much drier climate with only 97 mm (3.8 in) over 18 days. Both months share a humidity level of 78%, making them feel quite similar in terms of moisture, but September's rainfall makes it wetter overall. For a closer look at July's weather specifics, you can visit Ixtapa weather in July.

In comparing the weather of September and August, we see that both months have similar temperature ranges, with a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum of 31°C (87°F) for September and 31°C (88°F) for August. However, September experiences slightly more precipitation, with 277 mm (10.9 in) compared to August's 254 mm (10.0 in), over the same number of rainy days (22). Additionally, September's humidity is slightly lower at 78% compared to August's 79%. For those looking for more detailed August weather information, you can check Ixtapa weather in August.

In comparing the weather of September and October, we notice that both months have similar temperature ranges, with September having a minimum of 24°C (76°F) and a maximum of 31°C (87°F), while October maintains the same minimum but slightly increases the maximum to 31°C (88°F). September tends to be wetter, receiving 277 mm (10.9 in) of precipitation over 22 days, compared to October's 253 mm (10.0 in) over 25 days. Additionally, humidity levels are slightly lower in October at 75%, in contrast to September's 78%. For more detailed weather insights, check Ixtapa weather in October.

September and November present contrasting weather patterns, with September generally warmer and wetter. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), coupled with significant rainfall totaling 277 mm (10.9 in) over 22 days, resulting in a high humidity level of 78%. In contrast, November features slightly cooler temperatures, with a minimum of 22°C (73°F) and a maximum of 32°C (89°F), but enjoys much drier conditions with only 41 mm (1.6 in) of precipitation across just 7 days and a lower humidity level of 72%. For more detailed insights on November weather in Ixtapa, you can explore Ixtapa weather in November.

In September, the weather tends to be quite humid and wet, with average temperatures around 27°C (81°F) and significant rainfall of 277 mm (10.9 in) over 22 days. The humidity is high at 78%, making the heat feel more intense. In contrast, December offers a drier and more comfortable climate, with a slightly lower average temperature of 26°C (78°F) and minimal rainfall of just 4 mm (0.2 in) over only 1 day. The humidity also decreases to 70%, providing a more pleasant outdoor experience. For more detailed information, check out the Ixtapa weather in December.

Compare Ixtapa's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ixtapa

As September envelops Ixtapa, the weather experiences a notable shift, marked by higher humidity levels and increased rainfall compared to other months. The warm temperatures linger, but the frequent showers contribute to the lush landscape and vibrant atmosphere of the region. With nearly three-quarters of the month graced by precipitation, visitors should embrace the tropical climate while taking advantage of the moments of sunshine. If you're curious about what to expect throughout the year, explore more about Ixtapa's weather patterns at Ixtapa Climate.