Last updated: April 22, 2025
El Morro, Mexico, in September, experiences mild and pleasant weather, with maximum temperatures reaching 24°C (76°F) and an average of 21°C (71°F), while the minimum dips to a comfortable 19°C (67°F). Rainfall is nearly non-existent, with only 1 mm (0.0 in) recorded and no precipitation days, making it an ideal time for outdoor activities. The humidity level remains at 80%, adding a touch of tropical warmth to the atmosphere. Overall, September in El Morro offers a harmonious blend of warmth and dryness, perfect for enjoying the scenic beauty of this coastal gem.
In September, El Morro experiences a gentle transition into the cooler autumn months, with temperatures reflecting a warm yet comfortable climate. The minimum temperature rises to 19°C (67°F), while the average hovers around 21°C (71°F), peaking at a pleasant 24°C (76°F) during the day. This slight increase in warmth compared to August's averages signals the lingering summer heat, perfect for enjoying the outdoor splendor. As the month progresses, travelers can bask in the mildness of early autumn, making it an ideal time for exploring the region's natural beauty and rich culture. Overall, September offers a delightful balance between the tail-end of summer and the onset of the cooler season.
In September, El Morro, Mexico, experiences remarkably low precipitation, with only 1 mm (0.0 in), signaling the region's dry spell as summer transitions to fall. The month stands out, as no significant rainfall is recorded, following a series of similarly arid months from June to August. This trend of minimal rainfall is characteristic of the late summer months in El Morro, leading to a cumulative dry period where the skies often remain clear. As October approaches, a notable shift is anticipated, historically bringing a spike in precipitation, hinting at the return of the rainy season.
September in El Morro, Mexico, showcases a noticeable shift in humidity as the summer months start to wane. With humidity levels at 80%, this month experiences a slight dip from the peak summer highs of 86% in July and 85% in August. Typically characterized by high humidity during the earlier months, September's figures still reflect the lingering warmth of the season. Following this pattern of gradual decline, humidity levels decrease further into the fall, dropping to 75% in October. This progression highlights a transition from the intense summer moisture, paving the way for the drier months ahead, while still leaving a hint of tropical ambiance in the air.
In September, El Morro, Mexico, sees a UV Index of 11, categorized as extreme, which means sun protection is crucial during this time. As summer transitions into fall, the UV index remains high, consistent with the levels observed in the previous months of June to August. With a burn time of just 10 minutes, it's essential for sun-seekers to take precautions to avoid skin damage. This trend highlights the region's intense solar exposure, particularly from April through September when the UV Index peaks. For those planning a visit, understanding the UV Index is vital to ensure a safe and enjoyable outdoor experience. For more details, check out El Morro UV Index.
UV Risk Categories
As summer winds down, September in El Morro, Mexico continues to bask in a remarkable 311 hours of sunshine, reflecting a steady embrace of daylight following the peak of 365 hours in July. This month captures the transition from the sun-soaked extravagance of summer to the gentler warmth of autumn, offering residents and visitors alike a delightful blend of bright days. With a gradual decline in sunlight hours as the year progresses, from September's vibrant glow to November's 261 hours, the warmth lingers just long enough to savor outdoor adventures and breathtaking sunsets by the coast. The consistency in sunny days throughout the late summer and early fall highlights El Morro's charm, making it an idyllic spot for those seeking sunshine and relaxation.
In September, El Morro, Mexico, boasts a 70% chance of sunny weather, making it a delightful choice for those seeking sunshine as summer transitions into fall. This month stands out as a continuation of the higher sunshine rates experienced in August (74%), signaling that the sunny days of summer linger a bit longer. Following a slight dip in sunlight during May and June, the weather begins to stabilize, with percentages remaining consistently high into the fall months. As October approaches, a promising 73% chance of sunshine awaits, suggesting that September serves as an ideal time to enjoy the beautiful coastal scenery and warm weather before the cooler months set in.
In September, El Morro, Mexico, experiences a delightful 12 hours of daylight, signaling a gentle transition towards the shorter days of fall. This marks a subtle decrease from the consistent 13 hours enjoyed during the peak summer months of June through August. As summer wanes, the daylight duration reflects a gradual shift, following an upward trend in spring when the days stretch from 10 hours in January to a peak of 13 hours in May. The rhythm of the year is evident, as September's daylight serves as a bridge between the long, sunlit days of summer and the shorter, cozy evenings of autumn, creating a perfect backdrop for outdoor adventures and gatherings before the onset of cooler months.
In September, the winds in El Morro, Mexico, exhibit a gentle shift, clocking in at an average speed of 5.8 m/s (13 mph). This slight increase from the summer lows of 5.1 m/s (11 mph) in both July and August suggests the onset of more invigorating breezes as the seasons transition. While the wind reaches its peak in the spring months of March and April at 7.4 m/s (17 mph), September's relatively moderate winds offer a refreshing respite, bridging the gap between summer stillness and the more robust gusts of autumn. As the month progresses, the anticipation of stronger winds in October signals a dynamic change, inviting both locals and travelers to embrace the invigorating sea air.
The weather in El Morro 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 El Morro and find detailed weather information for every month.
September and January present distinctly different weather patterns. In September, temperatures are generally warmer, with minimums around 19°C (67°F) and averages reaching 21°C (71°F), peaking at a comfortable 24°C (76°F). This month enjoys minimal precipitation, averaging only 1 mm with no rainy days, and features high humidity at 80%. In contrast, January experiences cooler temperatures, with a minimum of 13°C (56°F), an average of 17°C (62°F), and a maximum of 20°C (69°F). January also has a higher likelihood of precipitation, totaling 12 mm over 2 days, and is characterized by slightly lower humidity at 74%. For more specific details about January weather, you can visit El Morro weather in January.
Comparing the weather in September and February reveals notable differences. September typically enjoys warmer temperatures, with a minimum of 19°C (67°F) and an average of 21°C (71°F), while February experiences cooler conditions, starting at a minimum of 13°C (56°F) and averaging around 16°C (61°F). Precipitation is minimal in September with no recorded rain, contrasting sharply with February, which sees about 11 mm (0.4 in) of rain over just one day. Humidity levels are slightly higher in September at 80%, compared to February's 77%. For a more detailed look, visit El Morro weather in February.
When comparing the weather in September and March, September is notably warmer, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 24°C (76°F) and an average of 21°C (71°F). In contrast, March sees cooler temperatures, with minimums of 12°C (54°F) and maximums of 20°C (69°F), averaging at 16°C (61°F). September also enjoys dry conditions, experiencing no days of precipitation and only 1 mm of rain, while March has a bit more moisture, with 10 mm of rain over one day. Humidity levels are slightly higher in September at 80%, compared to March's 77%. For more detailed information on March weather, you can visit El Morro weather in March.
September and April present distinctly different weather conditions. In September, the temperatures range from a minimum of 19°C (67°F) to a maximum of 24°C (76°F), with an average temperature of 21°C (71°F). The humidity is relatively high at 80%, but with no recorded rainfall, it’s typically a dry month. In contrast, April offers cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 19°C (67°F), averaging at 16°C (61°F). Although it also experiences minimal precipitation of just 1 mm (0.1 in) over the course of the month and maintains a moderate humidity level of 76%, the overall weather feels crisp and refreshing. For more specific details on the conditions in April, you can check El Morro weather in April.
In comparing the weather of September and May, September is notably warmer, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 24°C (76°F), while May offers cooler conditions, with temperatures averaging between 14°C (57°F) and 19°C (66°F). Precipitation levels are slightly higher in May, with 3 mm (0.1 in) recorded, although both months experience no rainy days. Additionally, September maintains a humidity level of 80%, just slightly lower than May's 83%. For a more detailed look at May weather in El Morro, check out El Morro weather in May.
In comparing the weather of September and June, September enjoys warmer temperatures, with a minimum of 19°C (67°F) and an average of 21°C (71°F), while June has cooler temperatures, starting at a minimum of 15°C (59°F) and averaging around 17°C (63°F). Although both months experience very little precipitation, September remains drier with only 1 mm of rain, compared to June's 2 mm. Humidity levels are slightly higher in June at 83%, compared to September's 80%. For more detailed insights on June weather, you can check El Morro weather in June.
In comparing the weather of September to July, one can observe a few notable differences. September generally enjoys slightly warmer temperatures, with minimums around 19°C (67°F) and maximums reaching 24°C (76°F), while July features cooler minimums at 16°C (62°F) and maximums peaking at 22°C (72°F). Both months experience minimal precipitation, with only 1 mm recorded and no rainy days in either month. However, September tends to have lower humidity at 80%, compared to July’s higher average of 86%. For a more detailed look at July's weather, you can refer to this link: El Morro weather in July.
In August, the weather is typically warm with minimum temperatures around 18°C (65°F) and maximums reaching up to 26°C (78°F). The average temperature hovers at 21°C (70°F), and despite experiencing 1 mm of precipitation, rainfall is not a frequent occurrence, occurring on 0 days. Humidity levels are also slightly higher at 85%.
In contrast, September brings slightly cooler temperatures, with minimums of 19°C (67°F) and maximums of 24°C (76°F), while still maintaining an average of 21°C (71°F). Like August, September also records very little precipitation, with just 1 mm and no rainy days. However, humidity remains elevated at 80%, contributing to a warm feeling during the month. For more details, check out El Morro weather in August.
In September, the weather is warm with temperatures averaging around 21°C (71°F), featuring a mild minimum of 19°C (67°F) and a maximum of 24°C (76°F). The month boasts extremely low precipitation, with no rainy days and humidity levels hovering at 80%. By October, the temperatures remain similar, with an average of 21°C (69°F) but a slight drop in minimum temperature to 17°C (63°F) and an increase in maximum temperature to 26°C (78°F). However, October brings more precipitation, totaling 16 mm (0.6 in), while the humidity decreases to 75%. For further details, visit El Morro weather in October.
In September, the weather is generally warmer, with average temperatures ranging from a mild 19°C (67°F) to a maximum of 24°C (76°F), and an impressive lack of rainfall—just 1 mm over the month. The high humidity of 80% can make it feel quite warm, despite the pleasant temperatures. In contrast, November sees cooler temperatures, with averages dipping to 16°C (62°F) and reaching a maximum of 22°C (72°F). It also experiences slightly more precipitation, totaling 5 mm over one day, and a lower humidity level of 73%. For more details on the weather patterns in November, you can check El Morro weather in November.
In September, the weather is warm and pleasant, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 24°C (76°F) and an average of 21°C (71°F). This month boasts minimal precipitation, with only 1 mm recorded and no rainy days, along with high humidity at 80%. In contrast, December brings cooler temperatures, with a minimum of 14°C (58°F), an average of 18°C (64°F), and a maximum of 21°C (69°F). The month is also wetter, seeing 9 mm of precipitation over two days, and has lower humidity at 71%. For more detailed information, check out El Morro weather in December.
As September unfolds in El Morro, visitors can expect a welcoming climate characterized by mild temperatures that create the perfect backdrop for outdoor adventures. Unlike the hotter summer months, this time of year offers comfortable daily highs and pleasantly cool nights, making it ideal for exploration. With minimal rainfall and consistently high humidity, the weather remains steady, allowing for uninterrupted enjoyment of the stunning coastal scenery. For a deeper dive into what the climate looks like throughout the year, check out El Morro Climate.