Last updated: April 22, 2025
In Mazatlán, Mexico, September presents a warm and humid climate, with maximum temperatures reaching 32°C (89°F) and an average hovering around 28°C (83°F). While the minimum temperature can dip to 25°C (78°F), the season is characterized by significant precipitation, totaling approximately 165 mm (6.5 in) over the month, spread across 20 rainy days. The high humidity level of 83% further enhances the tropical atmosphere, offering visitors a quintessential coastal experience despite the occasional rain. Embrace the vibrant ambiance of this diverse destination as it weathers the transitional month of September.
September in Mazatlán, Mexico, brings warm tropical temperatures, with minimums averaging 25°C (78°F) and daytime highs reaching up to 32°C (89°F). As summer draws to a close, the average temperature hovers around 28°C (83°F), making it one of the warmer months of the year. Compared to the preceding months, there’s a noticeable consistency in warmth, maintaining the summer's sultry vibe. While rain may be more frequent during this time, the inviting balmy evenings continue to charm visitors, creating a perfect atmosphere for enjoying the stunning coastal sunsets. The blend of warmth and coastal breezes makes September an enticing month for beach lovers and adventure seekers alike.
September in Mazatlán marks a significant shift in weather patterns, as the city experiences a dramatic increase in precipitation. With 165 mm (6.5 in) of rain over 20 days, this month stands as one of the wettest of the year, following the exceptional downpour of 266 mm (10.5 in) recorded in August. The rainy season peaks, reflecting a stark contrast to the preceding dry months of April and May, where no rainfall was recorded at all. As summer transitions to fall, the increasing number of rainy days and substantial precipitation highlights Mazatlán’s tropical climate, making September a pivotal moment for replenishing local water sources and invigorating the lush landscapes.
By September, Mazatlán experiences its peak humidity, holding steady at 83%, a figure mirrored from the preceding month. This high level of moisture in the air signals the tail end of the summer season, as the humidity trends increase significantly from the dry season's low of 56% in April. Throughout the year, humidity fluctuates but tends to spike during the summer months, with July and August also showcasing elevated levels. As the transition to fall begins in October, humidity slightly decreases to 78%, marking the start of a gradual decline. This pattern reflects Mazatlán's tropical climate, where coastal breezes cool off the air but often leave visitors feeling the warm embrace of the season's lingering moisture.
In September, Mazatlán experiences a UV Index of 12, maintaining its status in the extreme exposure category with a quick burn time of just 10 minutes. This notable consistency reflects a trend observed from April through August, where the UV Index also peaked at 12 or 13, indicating that visitors should remain vigilant about sun protection. The summer months show a remarkable stability in these high levels of UV radiation, making it essential to plan outdoor activities carefully. As the year progresses towards October, the UV Index drops slightly to 10, signaling a shift towards very high exposure. For detailed insights and tips on navigating sun exposure, visit Mazatlan UV Index.
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As summer fades, September brings a delightful transition in Mazatlan, Mexico, with an impressive 275 hours of sunshine. While this is slightly lower than the sun-drenched days of May and June, it still offers ample opportunities to bask in the warm glow. The trend of abundant sunshine continues, with September standing out as a bridge between the vibrant, sun-filled summer months and the cooler fall season. With its picturesque beaches and lively atmosphere, this enchanting coastal city remains a perfect getaway for those seeking sun and relaxation, making it a prime time to enjoy the lingering warmth before autumn sets in.
In Mazatlán, Mexico, the chances of sunny weather in September are notably lower, with only a 39% likelihood of sunshine. As summer draws to a close, the region experiences a significant drop in sunny days, following the peak of 79% in May and dwindling further through the months of June (51%) and July (41%). This trend highlights a transition into the wetter season, where the allure of blue skies becomes a bit more elusive. However, as October approaches, hope returns with an increase to 68%, suggesting that while September may be a bit gloomy, brighter days are on the horizon for those looking to enjoy the beautiful coastal charm of Mazatlán.
In Mazatlán, Mexico, September heralds a shift as daylight duration stabilizes at 12 hours, following the peak summer months of June through August, which basked in optimal sunshine. As the year progresses from January's 10 hours to May's bright 13 hours, a steady increase in daylight hours sets the tone for vibrant outdoor activities. However, September marks the beginning of a gradual decline, decreasing to 11 hours in October and continuing towards the winter months. This rhythm of daylight not only enhances the city's lively atmosphere but also resonates with the natural cycles of the region, inviting residents and visitors alike to soak in the rich experiences that Mazatlán has to offer throughout the year.
In Mazatlán, Mexico, the September wind brings a gentle lull, with an average speed of only 2.2 m/s (5 mph), making it one of the calmest months of the year. This tranquil breeze follows a summer characterized by slightly stronger winds, peaking in March at 3.5 m/s (8 mph). As the seasons transition, the wind gradually eases, with September marking a notable dip compared to the preceding months of June, July, and August, which hover around 2.5-3.2 m/s. This shift not only enhances the coastal ambiance but also sets the stage for a soothing atmosphere, ideal for leisurely beach days and sunset strolls along the vibrant shores. As October approaches, the wind picks up just a bit to 2.7 m/s, hinting at the gentle shift back towards more refreshing breezes, yet September remains a serene interlude in Mazatlán's wind patterns.
The weather in Mazatlan 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 Mazatlan and find detailed weather information for every month.
September and January present stark contrasts in weather. In September, temperatures hover between a warm minimum of 25°C (78°F) and a maximum of 32°C (89°F), accompanied by high humidity levels at 83%. This month also experiences significant rainfall, with around 165 mm (6.5 in) of precipitation falling over 20 days, making it a rather wet period. In contrast, January enjoys a milder climate, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 27°C (81°F). The month is notably dry, receiving only 12 mm (0.5 in) of rain and no precipitation days, along with a lower humidity of 74%. For more details, you can check Mazatlan weather in January.
In September, the weather tends to be much warmer and more humid than in February, with minimum temperatures around 25°C (78°F) and averages reaching up to 28°C (83°F). The month is characterized by significant rainfall, experiencing approximately 165 mm (6.5 in) over about 20 days, resulting in an humidity level that averages at 83%. In contrast, February feels considerably cooler with minimum temperatures of 16°C (61°F) and an average of 21°C (70°F). This month sees minimal rainfall, totaling only 25 mm (1.0 in) across just one day, and a lower humidity level of 66%. For more detailed information, you can check Mazatlan weather in February.
September and March present strikingly different weather patterns. In September, temperatures are notably warmer, ranging from a minimum of 25°C (78°F) to a maximum of 32°C (89°F), and the month is characterized by significant rainfall, with 165 mm (6.5 in) of precipitation over 20 days and high humidity at 83%. In contrast, March is much cooler and drier, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 27°C (80°F). Notably, March experiences no rainfall at all, leading to a much lower humidity level of 61%. For more detailed insights, you can check Mazatlan weather in March.
In comparison to September, April offers a significantly milder climate, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 27°C (80°F) and an average of 23°C (73°F). In contrast, September experiences much warmer temperatures, with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum of 32°C (89°F). Additionally, while September brings considerable rainfall with 165 mm (6.5 in) of precipitation over 20 days and high humidity at 83%, April boasts a dry atmosphere with no precipitation and a lower humidity level of 56%. For more details on weather specifics, you can check Mazatlan weather in April.
September and May present distinctly different weather patterns. In September, temperatures are generally higher, with a minimum of 25°C (78°F) and an average of 28°C (83°F), peaking at 32°C (89°F). The month is also marked by considerable rainfall, totaling 165 mm (6.5 in) over about 20 days, contributing to a high humidity level of 83%. In contrast, May boasts more moderate conditions with a minimum temperature of 21°C (69°F), an average of 25°C (77°F), and a maximum of 29°C (84°F). Notably, May experiences no precipitation, leading to a much lower humidity level of 61%. For more information, check out Mazatlan weather in May.
When comparing the weather in September and June, September tends to be warmer and significantly wetter. September has a minimum temperature of 25°C (78°F) and an average of 28°C (83°F), reaching a max of 32°C (89°F), while June features slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at 31°C (88°F). Additionally, September sees much higher precipitation levels, with 165 mm (6.5 in) spread over 20 days, compared to June's modest 21 mm (0.8 in) over just 2 days. Humidity also plays a role, as September's humidity is notably higher at 83%, compared to June's 73%. For more detailed insights, check out Mazatlan weather in June.
In comparing the weather of September and July, we find that both months experience similar temperature ranges, with minimums around 25°C (77-25°C or 78°F) and maximums reaching 32°C (89°F). However, September tends to be slightly cooler with an average temperature of 28°C (83°F), compared to July's warmer average of 29°C (84°F). Significant differences arise in precipitation and humidity: September sees a much higher rainfall of 165 mm (6.5 in) over 20 days, while July has a mere 61 mm (2.4 in) across just 9 days. The humidity remains consistently high in both months, with September at 83% and July at 82%. For more detailed insights, you can check out Mazatlan weather in July.
In comparing the weather between September and August, both months exhibit similar temperature ranges, with September slightly cooler, featuring a minimum temperature of 25°C and an average of 28°C, compared to August's average of 29°C. However, August sees higher precipitation levels, with 266 mm recorded over 19 days, while September has a total of 165 mm over 20 days. Humidity levels remain constant at 83% for both months, contributing to the overall warmth and stickiness. For a more detailed look at August weather, check out Mazatlan weather in August.
September and October both feature similar average temperatures, with September experiencing a minimum of 25°C (78°F) and October slightly cooler, at a minimum of 23°C (74°F). Both months reach a maximum temperature of 32°C (89°F), making them consistently warm. However, October sees a significant decrease in rainfall, with only 77 mm (3.0 in) of precipitation over 8 days, compared to September's 165 mm (6.5 in) over 20 days. Additionally, October's humidity drops to 78%, offering a more comfortable atmosphere than the 83% humidity typical in September. For more detailed information, visit Mazatlan weather in October.
In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 32°C (89°F) and an average around 28°C (83°F). This month also sees considerable rainfall, with approximately 165 mm (6.5 in) of precipitation spread over 20 days, resulting in a humidity level of 83%.
In contrast, November offers a more moderate climate, featuring lower temperatures that range from a minimum of 20°C (69°F) to a maximum of 30°C (87°F), with an average of 26°C (79°F). Rainfall drops significantly during this month, accumulating only 15 mm (0.6 in) over just 1 day, and humidity levels decrease to 77%. For more detailed information, you can check Mazatlan weather in November.
In September, the weather is warm and humid, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 32°C (89°F) and an average of 28°C (83°F). This month experiences significant rainfall, totaling 165 mm (6.5 in) across about 20 days, contributing to a high humidity level of 83%. In contrast, December offers a much cooler climate, with temperatures dipping to a minimum of 17°C (63°F) and a maximum of 28°C (82°F), averaging 23°C (73°F). Precipitation is minimal, with only 14 mm (0.6 in) falling across just 1 day, and humidity decreases slightly to 78%. For more details on the December climate, check out Mazatlan weather in December.
As September unfolds in Mazatlán, the weather presents a unique blend of warmth and moisture, setting itself apart from other months of the year. With temperatures peaking at a tropical 32°C (89°F), the heat is almost palpable, yet the average temperature remains a comfortable 28°C (83°F). The month is notably marked by increased precipitation, with 165 mm (6.5 in) of rain spread over about 20 days, contributing to a lush, vibrant landscape. Humidity levels hover around a high 83%, creating a sultry atmosphere that is perfect for those who relish the tropical feel. Unlike the drier months, September’s weather invites visitors to experience the lively monsoon season, making it a distinct time in Mazatlán. For more insights into the region's climate, visit Mazatlan Climate.