Last updated: April 22, 2025
Experience the vibrant October weather of San Diego, Mexico, where temperatures reach a maximum of 37°C (98°F) and maintain a pleasant average of 28°C (83°F). With a comfortable minimum of 18°C (64°F), visitors can enjoy warm days and cooler evenings. October also brings about 43 mm (1.7 in) of precipitation over 5 days, contributing to a lush landscape, while the humidity level hovers around 83%. This dynamic climate creates the ideal backdrop for outdoor activities and exploration, making it a perfect time to visit.
As October rolls in, San Diego, Mexico experiences a delightful transition in its temperatures. The month welcomes cooler nights with a minimum temperature of 18°C (64°F), while daytime highs can reach up to a sizzling 37°C (98°F), matching the soaring warmth of summer. This month showcases an average temperature of 28°C (83°F), striking a perfect balance for beachgoers and outdoor enthusiasts alike. Compared to the preceding months, October signifies a slight dip in nighttime temperatures, yet the days remain consistently warm, illustrating the region’s typical climate trends as it beautifully heads toward the end of the year. Ideal for exploring and enjoying the vibrant local culture, October stands out as a sweet spot in San Diego's annual weather pattern.
In October, San Diego, Mexico, experiences a noteworthy shift as the rainy season begins to wane, but still delivers a respectable 43 mm (1.7 in) of precipitation over 5 days. Following the monsoon months of August and September, which saw 152 mm (6.0 in) and 143 mm (5.6 in) respectively, October marks a decline, yet maintains a notable rainfall pattern. The slight reduction in precipitation hints at the transition to drier months, with November's anticipated increase to 46 mm (1.8 in) signaling a mild continuation of this trend. Overall, October stands as a transitional month, balancing between the lingering moisture of the late summer and the anticipation of the forthcoming dry season.
In October, San Diego, Mexico, experiences a notable drop in humidity compared to the peak summer months, yet it remains relatively high at 83%. This reflects a transitional period as the region shifts from the sweltering heat of August and September, which boast humidity levels of 87% and 88%, respectively. As the year progresses, humidity tends to fluctuate significantly; it starts at a high of 76% in January and gradually declines to a low of 49% in April and May. However, as July and August arrive, humidity spikes again, peaking during the summer months. The return to elevated levels in October signals the lingering warmth of summer while hinting at the more humid months ahead, making it a unique time in San Diego's climate cycle.
In October, the UV Index in San Diego, Mexico, remains notably high at 11, placing it in the extreme exposure category. This indicates that even on cloudy days, one can face a burn time of only 10 minutes under direct sunlight. As the month progresses, residents and visitors should be aware that UV levels are slightly lower compared to the peak summer months, which consistently hovered around 12 to 13. Notably, October marks a transition toward milder indices seen in the upcoming winter months, but the sun's intensity still demands caution. With consistent UV levels for most of the year, it's crucial to stay informed about the UV Index to protect your skin. For more detailed insights, check out San Diego UV Index.
UV Risk Categories
In October, San Diego, Mexico, enjoys a delightful 298 hours of sunshine, marking it as a perfect transitional month. Following the peak of May's radiant 360 hours, there's a gradual decline in sunlight as summer gives way to autumn. However, October's sun still shines brighter than the months preceding it, particularly September’s 278 hours, suggesting a lingering embrace of warmth before winter's approach. This consistent sunshine trend emphasizes San Diego's allure as a year-round destination for those seeking both relaxation and outdoor adventure, ensuring that even as the days shorten, the sun continues to play a vibrant role in the region's charm.
In October, San Diego, Mexico, boasts a 75% chance of sunny weather, making it one of the more favorable months for basking in the sun. This marks a notable rebound from the summer months, where the likelihood of sunshine plummeted to a mere 21% in August and 40% in both July and September. As the year progresses, it seems that early fall ushers in a delightful return to brighter skies, drawing in both locals and travelers eager to enjoy the pleasant shift. Following October, the sun continues to shine at a decent 62% in November, indicating that the region's charm remains strong even as the year dwindles down. Overall, October presents an ideal opportunity to embrace San Diego's beautiful climate before the cooler winter months set in.
As October unfolds in San Diego, Mexico, daylight begins to wane, offering roughly 11 hours of sunlight each day. This marks a subtle transition from the long, sun-soaked days of summer, where June, July, and August basked in 13 hours of daylight. As we move through the year, daylight duration peaks in May and then gradually declines, hitting its minimum with 10 hours in both January and December. The shift from the vibrant, extended summer days to the cozy, shorter daylight hours of fall invites residents and visitors alike to embrace the changing season, perfect for enjoying the picturesque sunsets that San Diego is renowned for.
As October settles in San Diego, Mexico, the average wind speed gently drops to 1.6 m/s (3 mph), continuing a trend of gradually decreasing breezes as the year progresses. Following a peak in the early summer months, where June soared to 2.1 m/s, the winds have shown a consistent decline leading into fall. September marked the lowest at 1.4 m/s, yet there’s still a refreshing whisper in the air as the autumn season takes hold. This mild October breeze invites outdoor exploration, contrasting with the more robust gusts of spring and early summer, offering a serene backdrop for the stunning coastal scenery.
The weather in San Diego changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Diego and find detailed weather information for every month.
In October, the weather is significantly warmer, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 37°C (98°F), while averaging around 28°C (83°F). This month also sees higher precipitation, with approximately 43 mm (1.7 in) over about 5 days and humidity levels at 83%. In contrast, January offers a much cooler climate, with temperatures dipping to a minimum of 8°C (47°F) and peaking at 33°C (91°F), averaging 20°C (68°F). Precipitation is minimal during this month, with only 6 mm (0.3 in) over just 1 day and a slightly lower humidity of 76%. For more detailed insights on the weather during this month, you can refer to San Diego weather in January.
October and February display contrasting weather patterns, with October being significantly warmer and more humid. October sees minimum temperatures around 18°C (64°F) and can reach highs of 37°C (98°F), averaging at 28°C (83°F) with a humidity level of 83%. In contrast, February has cooler temperatures, ranging from a low of 8°C (47°F) to a maximum of 33°C (92°F), averaging 20°C (69°F), and features lower humidity at 69%. Additionally, February experiences less rainfall, with only 24 mm (0.9 in) over 2 days compared to October's 43 mm (1.7 in) over 5 days. For a deeper dive into the specifics of February weather, check San Diego weather in February.
October and March present contrasting weather conditions. October experiences warmer temperatures, with an average of 28°C (83°F) and maximums reaching up to 37°C (98°F), alongside higher humidity at 83% and an average precipitation of 43 mm (1.7 in) over five days. In contrast, March is milder, with average temperatures around 22°C (72°F) and maximums of 34°C (94°F). Precipitation is minimal in March, only 2 mm (0.1 in) and no rainy days, contributing to a lower humidity of 57%. For more detailed insights, check San Diego weather in March.
October and April present notable contrasts in weather conditions. October typically experiences warmer temperatures, with average highs reaching up to 37°C (98°F) and maintaining a higher humidity level at 83%. In contrast, April offers milder temperatures, with an average high of 36°C (97°F) and a significantly lower humidity of 49%, creating a more comfortable atmosphere. While October sees some precipitation, averaging 43 mm over five days, April remains dry, with no recorded rainfall. For more insights, you can check out San Diego weather in April.
In comparing the weather of October and May, October tends to be warmer, with afternoon temperatures averaging around 28°C (83°F) and highs reaching up to 37°C (98°F). On the other hand, May offers slightly cooler temperatures, averaging 26°C (80°F) with similar maximums. October experiences more humidity at 83%, contributing to a muggy atmosphere compared to May’s much lower humidity of 49%. Additionally, October sees some rainfall with an average of 43 mm over about five days, whereas May is entirely dry with no recorded precipitation. For more information on May weather, you can check out San Diego weather in May.
In comparing the weather of October and June, both months exhibit warm temperatures, but with some distinct differences. October’s temperatures range from a minimum of 18°C (64°F) to a maximum of 37°C (98°F), with an average of 28°C (83°F). It also experiences relatively higher humidity at 83% and more days of precipitation, totaling 43 mm (1.7 in) over 5 days. In contrast, June has slightly warmer nights with a minimum of 20°C (68°F) and peak temperatures reaching up to 38°C (100°F), while maintaining a lower humidity level of 64% and less precipitation, measuring 26 mm (1.0 in) over just 3 days. For more details, you can check out the San Diego weather in June.
When comparing the weather in October and July, October tends to be slightly cooler overall, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 37°C (98°F). In contrast, July has a higher minimum temperature of 23°C (74°F) and an average temperature of 29°C (85°F). Precipitation also differs significantly, as October sees about 43 mm (1.7 in) of rainfall over just 5 days, while July experiences heavier rains totaling 86 mm (3.4 in) over 14 days. Both months maintain high humidity levels, with October at 83% and July at 82%. For a more detailed look at July weather, you can check San Diego weather in July.
In comparing the weather between October and August, October offers a slightly cooler temperature range, with minimums of 18°C (64°F) compared to August's 23°C (75°F). Both months experience high maximum temperatures of 37°C (98°F), but August has a higher average temperature at 29°C (85°F) versus October's 28°C (83°F). Precipitation differs significantly, as October typically sees just 43 mm (1.7 in) over 5 days, while August is much wetter with 152 mm (6.0 in) over 19 days, leading to higher humidity levels of 87% in August compared to 83% in October. For more details, you can check San Diego weather in August.
In comparing the weather of October and September, October offers slightly cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 37°C (98°F), while September experiences warmer nights with a minimum of 23°C (74°F) and a maximum of 36°C (97°F). Both months have the same average temperature of 28°C (83°F). However, October sees significantly less precipitation, with only 43 mm (1.7 in) over just 5 days, compared to September's substantial 143 mm (5.6 in) spread across 20 days, indicating a much drier month. Humidity is also slightly lower in October at 83% compared to September's 88%. For more details on September weather, check San Diego weather in September.
October and November experience a transition in weather conditions, with October showcasing warmer temperatures and higher humidity. In October, the minimum temperature hovers around 18°C (64°F), with an average of 28°C (83°F) and a maximum reaching 37°C (98°F). The month sees around 43 mm (1.7 in) of precipitation spread over five days, while humidity levels are at 83%.
In contrast, November features a slight decrease in temperature, with minimums of 14°C (58°F) and an average of 25°C (77°F). Maximum temperatures remain similar at 36°C (98°F). Interestingly, November sees a marginal increase in precipitation to 46 mm (1.8 in), but it occurs over just two days, indicating shorter, possibly heavier rainfalls. Humidity remains comparable at 84%. For more details on weather trends, check out San Diego weather in November.
In October, the weather is noticeably warmer, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 37°C (98°F) and an average of 28°C (83°F). There's a moderate amount of rainfall, with about 43 mm (1.7 in) over five days, and humidity levels sitting at 83%. In contrast, December brings a significant drop in temperature, featuring a minimum of 10°C (51°F) and a maximum of 34°C (93°F), averaging 21°C (70°F). The month is drier, with only 17 mm (0.7 in) of precipitation over just two days, while humidity increases slightly to 86%. For more details, you can check San Diego weather in December.
As October rolls into San Diego, the weather shifts to a delightful blend of warmth and mildness. With temperatures reaching their peak and the humidity hovering around 83%, the month stands out as a transitional period, moving away from the scorching summer heat. While occasional rains grace the city, contributing to a modest total of 43 mm over just five days, the overall dryness allows for plenty of sunny enjoyment. This unique combination of warmth and moisture makes October a refreshing time for outdoor activities. For more insights on what to expect throughout the year, check out San Diego Climate.