Last updated: April 22, 2025
Experience the vibrant climate of Loreto, Mexico in September, where the weather is a delightful mix of warm days and cool nights. With maximum temperatures reaching 29°C (85°F) and an average of 19°C (67°F), this coastal paradise offers a comfortable escape from the heat. However, evenings can be brisk, dipping to a minimum of 9°C (48°F). Be prepared for the moisture in the air, as humidity hovers around 81% and rainfall totals approximately 117 mm (4.6 in) over the month, spread across 14 rainy days. Whether you're planning outdoor adventures or relaxing by the beach, September in Loreto promises a unique blend of sun and refreshing showers.
September in Loreto, Mexico, offers a delightful transition as summer gradually fades. With minimum temperatures around 9°C (48°F) and an average comfortable climate of 19°C (67°F), the month serves as a gentle reminder of the pleasant warmth of the season. Average highs can reach 29°C (85°F), striking a perfect balance between sunny days and cooler evenings. This month stands out for its notable shift from the extreme heat of July and August; it marks a gradual decline in temperatures, paving the way for the cooler months ahead. As the sizzle of summer wanes, September becomes an inviting time for outdoor adventures, making it a perfect month to explore the natural beauty and rich culture of Loreto.
September marks a significant peak in precipitation for Loreto, Mexico, with 117 mm (4.6 in) of rainfall, making it one of the wettest months of the year. This rise in moisture is accompanied by an increase in rainy days, reaching 14 days, which contributes to the vibrant ecosystem and lush surroundings. Following August's 79 mm (3.1 in), September's deluge not only serves as a transition into the cooler autumn months but also signals the tail-end of the rainy season. As patterns suggest, the summer months—especially from June to September—experience heightened rainfall, while the rest of the year remains relatively dry, highlighting the region's stark seasonal contrasts. This seasonal shift beautifully encapsulates Loreto's unique climatic rhythm, enriching its natural beauty and allure for visitors.
In September, Loreto, Mexico experiences a notable rise in humidity, reaching a peak of 81%. This shift marks the transition from the relatively drier summer months, where humidity dipped to the low 60s in July and August. Following the tropical patterns typical for this region, September's increased moisture sets the stage for the approaching autumn, where humidity levels continue to climb, culminating at a humidity rate of 85% in October. The pattern suggests a dynamic climate, where the balance of warm temperatures and elevated humidity creates a vibrant, lush environment, influencing both the landscape and the overall experience of this beautiful coastal destination.
In September, Loreto’s UV Index remains a striking 14, consistent with the previous month and indicating an extreme level of sun exposure that requires caution. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to take protective measures when enjoying the sun. This trend of elevated UV levels persists from February through October, highlighting Loreto as a sunny destination for most of the year but also emphasizing the importance of sun safety. As the summer transitions to fall, remember to check the latest information at Loreto UV Index to stay informed and protected during your outdoor adventures!
UV Risk Categories
In Loreto, Mexico, September marks a delightful transition, boasting approximately 297 hours of sunshine—a slight dip from the sun-soaked heights of the peak summer months. Following the summer's consistent warmth where sunshine peaked at 349 hours in May, the days gradually shorten, yet September's sunny disposition remains vibrant. This month stands as a beautiful reminder of the lingering summer, outshining the earlier winter months with notable brightness while paving the way for the cooler temperatures of autumn. As the year progresses, sunshine hours gracefully decline, illustrating the rhythmic dance of seasons, but September holds onto a sweet balance of warmth and light, perfect for outdoor adventures and relaxing beach days.
As summer gives way to autumn, September in Loreto, Mexico experiences a notable dip in sunshine, with only a 27% chance of sunny days. This marks a significant drop from the preceding months of July and August, which are characterized by even lower sunshine probabilities at 31% and 48%, respectively. Following the vibrant days of spring, where chances soar the highest in February (83%), there seems to be a pattern of diminishing sunlight as the year progresses towards the fall months. Consequently, if you're seeking bright, sunny weather, it might be wise to keep September on your radar as a less favorable time to soak up the sun in Loreto.
In September, Loreto, Mexico, enjoys a pleasing 12 hours of daylight, maintaining the same sunny duration as the previous month. This month marks a transition as the summer days begin to shorten, ushering in a gradual descent in daylight as we approach autumn. From a peak of 13 hours in the summer months of May through July, the daylight starts to recede, settling into a comfortable rhythm. As the year progresses, the pattern clearly illustrates a gentle ebb in sunlight, with October and November bringing 11 hours each, before tapering off to 10 hours in the depths of winter. This cyclical change in daylight not only fosters a dynamic environment but also enhances the allure of Loreto's landscapes throughout the year.
In September, Loreto, Mexico, experiences a gentle breeze with an average wind speed of only 2.3 m/s (5 mph), marking a noticeable dip from the summer months. As the year progresses, the wind speeds gradually decrease, reaching their lowest point in this early fall month. This trend of diminishing winds is a contrast to the more robust breezes felt in April and August, which often hover around 3.2 to 3.5 m/s. The subtle winds of September provide a tranquil backdrop, perfect for experiencing the serene beauty of Loreto’s landscapes, making it an ideal time for leisurely outdoor activities as the summer heat begins to wane. As autumn approaches, the calm winds invite both relaxation and exploration, creating a peaceful atmosphere for residents and visitors alike.
The weather in Loreto 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 Loreto and find detailed weather information for every month.
In September, the weather is characterized by a mild to warm temperature range, with minimums around 9°C (48°F) and maximums reaching up to 29°C (85°F). The month sees significant rainfall, with about 117 mm (4.6 in) of precipitation spread over 14 days and a relatively high humidity level of 81%. In contrast, January experiences cooler conditions, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 26°C (80°F). The winter month is much drier, with only 9 mm (0.4 in) of precipitation over just 2 days, and humidity at a lower 75%. For a detailed look at what to expect in January, check out Loreto weather in January.
September and February present distinctly different weather patterns. September boasts milder temperatures, with averages around 19°C (67°F) and highs reaching 29°C (85°F), accompanied by significant rainfall of 117 mm (4.6 inches) spread over 14 days, resulting in a humid environment with 81% humidity. In contrast, February experiences cooler temperatures, with averages of 15°C (60°F) and highs peaking at 30°C (86°F), but it remains considerably drier, with only 8 mm (0.3 inches) of precipitation over just one day and a lower humidity of 69%. For more details on February weather, you can check out Loreto weather in February.
When comparing the weather in September and March, several notable differences emerge. September tends to be more humid, averaging 81% with rainfall of 117 mm over 14 days, while March features significantly lower humidity at 65% and only minimal precipitation of 4 mm across a single day. Temperature-wise, September ranges from a cooler 9°C (48°F) to a more pleasant average of 19°C (67°F) and peaks at 29°C (85°F). In contrast, March starts with a lower minimum of 3°C (38°F) but can reach an impressive maximum of 33°C (91°F), making it the warmer month overall. For a detailed look at the weather in March, check out Loreto weather in March.
When comparing the weather in September and April, it's evident that April tends to have warmer temperatures, with an average of 20°C (69°F) and highs reaching up to 33°C (92°F), whereas September features a broader temperature range, averaging 19°C (67°F) with maximums of 29°C (85°F). In terms of precipitation, September is significantly wetter, receiving 117 mm (4.6 in) over 14 days, while April is quite dry with only 3 mm (0.1 in) over just one day. Additionally, the humidity in September is higher at 81%, compared to April's 64%, making September feel more humid and potentially less comfortable. For a detailed look at April's weather, refer to Loreto weather in April.
When comparing the weather in September and May, several notable differences emerge. September tends to be cooler, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), while May is generally warmer, with minimums around 8°C (47°F) and maximums reaching up to 35°C (95°F). Additionally, September experiences significantly more precipitation, averaging 117 mm (4.6 in) over 14 days, compared to May’s much drier conditions, which only see around 21 mm (0.8 in) over just 3 days. The humidity is also higher in September at 81%, compared to May's 75%, making the latter a more comfortable time of year overall. For more details, you can check Loreto weather in May.
When comparing the weather in September and June, it's evident that June generally experiences warmer temperatures, with averages around 21°C (71°F) and maximums reaching up to 35°C (95°F), while September's average is slightly cooler at 19°C (67°F), peaking at 29°C (85°F). Additionally, both months see a similar amount of rainfall, but September has a higher average precipitation of 117 mm (4.6 in) over 14 days compared to June's 98 mm (3.9 in) across 12 days. Humidity levels are also comparable, with September at 81% and June at 78%. For more detailed information, check out Loreto weather in June.
In comparing the weather of September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), while July showcases a warmer range with minimum temperatures of 12°C (54°F) and maximums reaching 31°C (89°F). Precipitation levels are similar, with September recording 117 mm (4.6 in) and July close behind at 110 mm (4.3 in), both spread across 14 days. Additionally, September has higher humidity at 81%, compared to July's 67%, contributing to a more muggy feel as the summer winds down. For more detailed insights on July weather, you can visit Loreto weather in July.
In comparing the weather of September and August, September exhibits a noticeable cooling trend with average temperatures dropping from August's 21°C (69°F) to 19°C (67°F). While August experiences higher maximum temperatures peaking at 31°C (89°F), September's high reaches 29°C (85°F), suggesting a gradual transition towards autumn. Additionally, September is wetter, with 117 mm (4.6 in) of precipitation over 14 days, compared to August's 79 mm (3.1 in) over just 10 days. The humidity also rises in September, averaging 81% versus August's 64%, indicating a more humid atmosphere as summer wanes. For further insights, you can check Loreto weather in August.
In comparing the weather between September and October, we see a noticeable shift. While September enjoys an average temperature of 19°C (67°F) with highs reaching up to 29°C (85°F), October experiences a slight dip, averaging 18°C (65°F) but maintaining the same maximum temperature. Precipitation also decreases significantly, with September receiving 117 mm (4.6 in) over 14 days, while October only sees 40 mm (1.6 in) over just 6 days. Humidity remains fairly constant, rising from 81% in September to 85% in October. For more detailed insights on October weather, you can visit Loreto weather in October.
September and November exhibit distinct differences in weather patterns. September features a broader temperature range, with minimums at 9°C (48°F) and maximums reaching 29°C (85°F), while November's temperatures are slightly milder, ranging from a minimum of 0°C (32°F) to a maximum of 28°C (84°F). Precipitation in September is significantly higher at 117 mm (4.6 in) over 14 days, compared to November's sparse 12 mm (0.5 in) over just 1 day, indicating a much drier month. Additionally, humidity levels in November are moderately higher at 87%, compared to September’s 81%. For a detailed look at the weather in November, visit Loreto weather in November.
The weather in September is warm and relatively humid, with average temperatures ranging from a cool 9°C (48°F) at night to a high of 29°C (85°F) during the day. This month also sees considerable precipitation, averaging 117 mm (4.6 in) over about 14 days, making it one of the wetter months. In contrast, December experiences much colder weather, with minimum temperatures dropping to -6°C (22°F) and average highs at 28°C (82°F). The month is significantly drier, with just 8 mm (0.3 in) of precipitation over only one day, though it maintains a high humidity level of 87%. For more detailed insights, you can refer to Loreto weather in December.
As September rolls in, Loreto experiences a distinct shift in its weather, contrasting with the drier heat of summer. The temperatures are notably moderate, offering a comfortable average that invites outdoor exploration, yet the month is marked by increased humidity and a significant rise in rainfall, making it one of the wetter periods of the year. With approximately half the days being rainy, visitors should prepare for occasional showers amid the warm, tropical atmosphere. This blend of warmth and moisture creates a lush environment, perfect for experiencing Loreto's vibrant natural beauty. For a detailed overview of how September fits into the broader patterns of the year, check out Loreto Climate.