Last updated: April 22, 2025
September in Rosarito, Mexico, offers a delightful escape with maximum temperatures reaching around 29°C (85°F) and a pleasant average of 20°C (69°F). With minimum temperatures dipping to 16°C (62°F), visitors can expect comfortable days and cooler evenings. The month sees a low precipitation total of just 4 mm (0.2 in), with no rainy days, making it ideal for outdoor activities. The humidity hovers around 52%, ensuring a refreshing coastal breeze that enhances the overall enjoyment of this vibrant beach destination.
In September, Rosarito, Mexico, welcomes a delightful transition into late summer, with temperatures becoming increasingly warm. The minimum temperature rises to a pleasant 16°C (62°F), while the average settles at a comfortable 20°C (69°F). With daytime highs peaking at 29°C (85°F), this month showcases a perfect balance of warmth, making it ideal for beachgoers and outdoor enthusiasts alike. As the summer crowds begin to dwindle, visitors can enjoy the sunny days and cool evenings, reflecting a blend of summer's lingering warmth and the approach of autumn's mild embrace.
In September, Rosarito experiences minimal precipitation, with only 4 mm (0.2 in) recorded, which, unlike the earlier months, sees no rainy days. This dry spell marks a significant contrast to the wetter winter months, where rainfall levels can rise considerably; for instance, December and February both receive over 60 mm (2.5 in and 2.4 in, respectively). Following a summer with virtually no rain in June, July, and August, September's light drizzle further emphasizes the region's dry climate, setting the stage for a gradual uptick in precipitation as autumn approaches. This trend highlights Rosarito's characteristic weather patterns, where the coastal influence offers long, dry stretches interspersed with heavier rainfall in the cooler months.
As summer transitions to fall, September in Rosarito, Mexico showcases a slight rebound in humidity, with levels rising to 52%. This marks a shift from the drier months of July and August, which experienced their lowest humidity readings at 46% and 42%, respectively. The trend is evident: as the warmest months give way to autumn, the humidity begins to reestablish itself, hinting at the upcoming seasonal changes. While September's humidity remains lower than the year's peak in February at 77%, it signals a gradual increase that leads into October, where levels rise again to 58%. This interplay of fluctuating humidity reflects the region's dynamic climate patterns, making September a transitional month that balances warmth with a hint of moisture.
In September, Rosarito, Mexico continues to see a very high UV Index of 10, indicating that sun exposure can cause harm within just 15 minutes. As summer transitions into fall, the UV Index slightly decreases from the extreme levels of the previous months but remains significant enough for sun safety to be a priority. This trend illustrates the region's high solar intensity, especially during the peak summer months from May to August, where UV levels reached an extreme 11. As the year progresses, it's essential to stay informed about these fluctuations to enjoy the beautiful Rosarito sun safely. For detailed insights on UV exposure throughout the year, check Rosarito UV Index.
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September in Rosarito, Mexico, basks in 318 hours of glorious sunshine, making it a splendid time to relish the sun-soaked beaches. As summer draws to a close, this month boasts a generous amount of sunlight, just slightly lower than the peak of 375 hours experienced in July. Interestingly, after a gradual increase from 196 hours in January to a summer high, September marks a gentle decline as the days begin to shorten. This trend continues into October, with 298 hours of sunshine. Overall, September encapsulates the warmth and vibrancy of summer while hinting at the cooler days to come, making it an ideal time for visitors to enjoy the lingering beach days.
When considering the likelihood of sunny weather in Rosarito, Mexico, September stands out with a promising 67% chance of sunny days, making it one of the most favorable months for sun-seekers. This trend suggests a gradual increase in sunshine from the earlier months of summer, particularly August, which also enjoys a robust 63%. Following September, the sunshine probability remains strong into October, at 64%, indicating that the pleasant weather lingers as autumn approaches. Overall, September heralds a delightful time to bask in the sun, perfectly aligning with the annual rise in sunny dispositions throughout the coastal landscape.
As summer draws to a close in Rosarito, Mexico, September welcomes a gentle transition in daylight, offering about 12 hours of sun. This month marks a gradual decrease from the peak of 14 hours in June, reflecting the shift towards autumn as daylight begins to wane. Interestingly, September retains the same 12 hours of sunlight seen in both March and April, creating a seamless link between the warmer months and the cooling fall season. With consistent daylight stretching over various months, Rosarito promises plenty of opportunities for outdoor activities, making September a delightful time to enjoy the picturesque coastal scenery before the shorter days of October settle in.
As September arrives in Rosarito, Mexico, the gentle breeze maintains a steady rhythm, averaging 3.2 m/s (7 mph), comparable to the previous month. This consistent wind speed reflects the mild coastal climate characteristic of this time of year, seamlessly transitioning from the summer heat into the cooler autumn months. Observing the data trends, we see that while spring and early summer months experience slight fluctuations, September's winds echo a similar calmness found in both July and August. This pattern suggests that visitors can still enjoy outdoor activities in the comforting embrace of refreshing seaside winds before the season shifts. As the year progresses into autumn, one might anticipate a gradual decline in wind speed, hinting at the subtle changes nature brings to this coastal paradise.
The weather in Rosarito 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 Rosarito and find detailed weather information for every month.
In comparing the weather between September and January, September boasts a warmer climate with average temperatures around 20°C (69°F), peaking at 29°C (85°F) and low humidity levels of 52%. Precipitation is minimal during this month, with only 4 mm recorded and no rain days, making it a dry and pleasant time of year. In contrast, January experiences cooler temperatures, averaging 14°C (58°F), with maximums reaching only 24°C (75°F). This month sees significantly more precipitation, totaling 48 mm over about 6 days, accompanied by higher humidity at 72%. For further details on January weather, you can refer to Rosarito weather in January.
September and February exhibit strikingly different weather patterns. September tends to be warmer, with average temperatures ranging from a mild 20°C (69°F) to a high of 29°C (85°F), accompanied by low precipitation and relative humidity at 52%. In contrast, February experiences cooler temperatures, averaging around 14°C (57°F), and even reaching a chilly minimum of 7°C (45°F). This month also sees significantly more rainfall, with 62 mm (2.4 in) over approximately six days, and higher humidity levels at 77%. For a detailed look at February's climate, you can check out Rosarito weather in February.
September and March present contrasting weather patterns. In September, temperatures typically range from a comfortable minimum of 16°C (62°F) to a warm maximum of 29°C (85°F), with an average temperature of 20°C (69°F). The month is quite dry, receiving just 4 mm (0.2 in) of rain and maintaining relatively low humidity at 52%. In contrast, March experiences cooler temperatures, with a minimum of 8°C (47°F), an average of 14°C (58°F), and a maximum of 24°C (76°F). This month is much wetter, accumulating 44 mm (1.7 in) of precipitation over 9 days and showing higher humidity levels at 67%. For more detailed information on March weather, check out Rosarito weather in March.
Comparing the weather in September and April reveals distinct differences in temperature and precipitation. September boasts warmer temperatures, with a minimum of 16°C (62°F) and an average of 20°C (69°F), reaching a maximum of 29°C (85°F). In contrast, April features cooler conditions, with temperatures ranging from a minimum of 11°C (51°F) to an average of 15°C (60°F) and a maximum of 26°C (80°F). Additionally, April experiences more precipitation, totaling 20 mm (0.8 in) over three days, whereas September remains dry with only 4 mm (0.2 in) of precipitation and no rainy days. Humidity is slightly higher in April at 56%, compared to September's 52%. For more detailed insights into April's weather patterns, check out Rosarito weather in April.
When comparing the weather in September and May, September stands out with warmer temperatures, boasting a minimum of 16°C (62°F) and an average of 20°C (69°F), compared to May's cooler minimum of 12°C (53°F) and average of 16°C (61°F). The maximum temperature in September reaches 29°C (85°F), significantly higher than May's peak of 24°C (75°F). Additionally, September experiences very little precipitation, with only 4 mm (0.2 in) over no rain days, whereas May is relatively wetter with 18 mm (0.7 in) distributed over four rainy days. Despite this, both months maintain comfortable humidity levels, with September at 52% and May slightly lower at 46%. For more details on the weather specifics in May, check out Rosarito weather in May.
In comparing the weather of September and June, September tends to be warmer with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 29°C (85°F), yielding an average temperature of 20°C (69°F). In contrast, June has slightly cooler temperatures, with a minimum of 14°C (58°F) and a maximum of 26°C (79°F), averaging around 17°C (64°F). Both months experience minimal precipitation, with only 4 mm (0.2 in) and no rainy days, but September sees a slightly higher humidity level at 52% compared to June's 48%. For more insights on the specifics of June weather, you can visit Rosarito weather in June.
In comparison of the weather in September and July, both months exhibit mild temperatures, but September tends to be slightly warmer overall. September's minimum temperature is 16°C (62°F) and can reach a maximum of 29°C (85°F), while July ranges from a minimum of 15°C (60°F) to a maximum of 26°C (80°F). Humidity levels are a bit higher in September at 52% compared to July's 46%. Furthermore, both months see minimal precipitation, with September receiving 4 mm (0.2 in) and July slightly less at 3 mm (0.1 in), and neither month experiences rainy days. For more details, you can check Rosarito weather in July.
In comparison to August, September experiences slightly cooler temperatures, with a minimum of 16°C (62°F) and an average of 20°C (69°F), compared to August's minimum of 17°C (62°F) and average of 21°C (70°F). While both months see minimal precipitation, September has just 4 mm (0.2 in) compared to August's 3 mm (0.1 in), and both months have no recorded days of rain. However, September is characterized by a higher humidity level of 52%, compared to August's more comfortable 42%. For more detailed information about August weather, visit Rosarito weather in August.
As September transitions into October, the weather experiences a notable shift. September boasts mild temperatures, with a minimum of 16°C (62°F) and an average of 20°C (69°F), but October dips slightly with a minimum of 13°C (55°F) and an average of 19°C (67°F). Both months are warm, yet October can reach a warmer high of 30°C (86°F), compared to September's maximum of 29°C (85°F). Additionally, October sees an increase in precipitation, with 12 mm (0.5 in) over two days, contrasting with September's dry spell of 4 mm (0.2 in) over no days. The humidity also rises from 52% in September to 58% in October, adding to the month’s distinct climate. For more detailed insights, you can check Rosarito weather in October.
September and November present distinct contrasts in weather. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 29°C (85°F), with an average of 20°C (69°F). The month is relatively dry, with just 4 mm (0.2 in) of precipitation over no rainy days and humidity at 52%. In stark contrast, November sees cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 26°C (79°F), averaging 17°C (63°F). This month experiences a notable increase in precipitation, totaling 27 mm (1.1 in) over two days, and humidity rises to 66%. For a more detailed look at what to expect, check out Rosarito weather in November.
In September, the weather is generally warm with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 29°C (85°F), averaging around 20°C (69°F). It's a dry month, with only 4 mm (0.2 in) of precipitation and low humidity at 52%. In contrast, December experiences cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (74°F), averaging 15°C (59°F). This month sees significantly higher precipitation at 62 mm (2.5 in) over about 5 days, accompanied by increased humidity at 74%. For more details, check Rosarito weather in December.
As summer transitions into fall, September weather in Rosarito offers a delightful reprieve with pleasantly warm temperatures and minimal precipitation. With averages hovering around a comfortable 20°C, residents and visitors alike can enjoy sunny days and delightful evenings without the humidity found in earlier months. Notably, this month stands out with no recorded rainfall, making it an ideal time for outdoor activities along the stunning coastal landscapes. To gain deeper insights into the local climate, visit Rosarito Climate.