Last updated: April 22, 2025
In October, San Diego, Mexico experiences warm and inviting weather, with maximum temperatures reaching up to 34°C (93°F) and an average of 23°C (74°F). The nights can be pleasantly cool, dropping to a minimum of 16°C (61°F). However, this month also brings a significant amount of rainfall, with 134 mm (5.3 in) spread across approximately 15 days, creating a humid atmosphere with an average humidity level of 83%. This combination of warmth and moisture fosters a lush, vibrant environment, making October a unique time for experiencing the beauty of San Diego.
In October, San Diego experiences a delightful transition as temperatures remain pleasantly mild. With minimums around 16°C (61°F) and averages hitting 23°C (74°F), the warmth is still inviting, ideal for outdoor adventures. Daytime highs reach up to 34°C (93°F), echoing the lingering summer vibes but with a refreshing autumn twist. As the month progresses, a gradual cooling trend begins to set in, hinting at the upcoming winter months while still offering plenty of sunny days to enjoy. This perfect blend of warmth and comfort makes October a wonderful time to explore San Diego's stunning beaches and vibrant urban scene.
In October, San Diego, Mexico, experiences a significant shift in weather patterns, marked by a substantial precipitation total of 134 mm (5.3 in) spread over 15 days. This rainy month is part of the broader trend of increasing rainfall that begins in late summer, following the peak precipitation of September. Notably, October's rainfall is considerably higher compared to the earlier months, with rainfall accumulating in both frequency and volume, reflecting the transition to the wet season. After a dry spell in the colder months, this surge signals a refreshing change and prepares the landscape for the lushness that follows in subsequent months.
In October, San Diego, Mexico experiences a notable rise in humidity, reaching 83%, making it the most humid month of the year. This increase follows the high humidity levels of 82% recorded in both August and September, indicating a trend of elevated moisture in the air as the rainy season approaches its tail end. As the year progresses, humidity typically starts high at 76% in January, gradually decreasing until it hits a low of 57% in April. However, from May onward, humidity begins to climb again, peaking in the fall months. The shift in humidity illustrates the region's transition from the dry summer to a more humid autumn, creating a lush and vibrant atmosphere as the year draws to a close.
October in San Diego, Mexico, brings a UV Index of 13, maintaining its classification as extreme. This trend follows several months of high intensity, with similar readings recorded from February through September, where the index peaked at 15 during April and July. With a consistent burn time of just 10 minutes, October remains a critical month for sun exposure awareness. As the year transitions into autumn, daily activities still call for diligent sun protection. To stay informed and safe, you can explore more about the yearly UV Index patterns here.
UV Risk Categories
As October unfolds in San Diego, Mexico, residents and visitors alike bask in 295 hours of sunshine, a delightful extension of the idyllic weather that characterizes this coastal gem. Following a vibrant July, which boasts the sunniest stretch at 329 hours, the sunlit days now gracefully transition into autumn, still holding strong against the encroaching winter months. With September trailing closely behind at 293 hours, October continues a trend of abundant sunshine that begins peaking mid-year, ensuring that locals can enjoy outdoor adventures and picturesque sunsets. As the year progresses, the hours of sunshine remain relatively consistent, with only slight fluctuations, adding a reassuring predictability to the climate that makes San Diego a year-round paradise.
In San Diego, Mexico, the likelihood of sunny weather varies significantly throughout the year, with October featuring a moderate 42% chance of sunshine. This suggests a noticeable decline from the sunnier months of January through April, where probabilities peak, especially in February and March at 79% and 77%, respectively. As the summer months approach, the chances dwindle dramatically, hitting a low of 18% in June. While October does not boast the brightest prospects, it still offers a more favorable chance for enjoyable weather compared to the bleak summer months. This trend indicates that as the fantastic fall season unfolds, residents and visitors alike can still anticipate some delightful sunny days amidst the moderate cloud cover.
In San Diego, Mexico, the month of October marks a shift in daylight duration, as the hours of sunlight decrease to 11 hours—a pattern that echoes the shorter days of January and February. Following the vibrant days of summer, where daylight peaked at 13 hours in June, the gradual transition to autumn sees daylight remain consistent at 12 hours from March through September. This rhythmic ebb and flow of sunlight not only underscores the region's mild climate but also sets the stage for the cozy charm of fall, as residents and visitors alike prepare for the cooler months ahead.
As October sweeps into San Diego, Mexico, the winds begin to gently stir, with an average speed of 1.5 m/s (3 mph). This marks a slight uptick from the calmness of the summer months, where winds lingered as low as 1.2 m/s (3 mph) in both June and September. Interestingly, October sits in the lower range when compared to earlier autumn months, still shy of the breezy November average of 2.4 m/s (5 mph). The transition from summer to fall is subtle, revealing a trend towards more consistent wind patterns as the year progresses, setting the stage for the refreshing gusts that herald the winter months ahead.
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.
October and January in San Diego present contrasting weather patterns. In October, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (93°F), with an average of 23°C (74°F) and significantly higher humidity at 83%. The month also experiences substantial rainfall, totaling 134 mm (5.3 in) over about 15 days. In contrast, January offers milder temperatures, with a minimum of 10°C (50°F) and a maximum of 33°C (93°F), averaging 21°C (70°F). Rainfall is minimal during this month, only 8 mm (0.3 in) over just one day, and the humidity is slightly lower at 76%. For a detailed look at January weather conditions, you can refer to San Diego weather in January.
October and February present contrasting weather patterns. In October, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (93°F), with an average of 23°C (74°F). This month experiences a substantial amount of rainfall, totaling 134 mm (5.3 in) over approximately 15 days, contributing to a high humidity level of 83%. In stark contrast, February offers milder temperatures, with a minimum of 10°C (50°F) and a maximum reaching 35°C (96°F), averaging around 22°C (72°F). Notably, precipitation is minimal during this month, totaling just 5 mm (0.2 in) over 1 day and resulting in lower humidity at 68%. For more insights on February weather, refer to San Diego weather in February.
In October, the weather is generally warmer with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (93°F) and an average of 23°C (74°F). The month is characterized by higher humidity at 83% and significant precipitation, totaling 134 mm (5.3 in) over about 15 days. In contrast, March features slightly cooler temperatures, with an average of 23°C (74°F) but reaching up to 36°C (96°F) at its peak. This month experiences notably less rainfall, only 5 mm (0.2 in) over just one day, and lower humidity at 59%. For more details on March weather, you can check San Diego weather in March.
When comparing the weather in October and April, notable differences emerge. In October, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (93°F), with an average of 23°C (74°F). This month experiences significant rainfall, totaling 134 mm (5.3 in) across about 15 days, and considerable humidity at 83%. In contrast, April boasts warmer conditions with minimum temperatures of 14°C (57°F) and a maximum of 37°C (99°F), averaging around 25°C (78°F). Interestingly, April sees much less precipitation, totaling just 11 mm (0.4 in) over 2 days, accompanied by significantly lower humidity at 57%. For more details, check out San Diego weather in April.
In October, the weather tends to be cooler and more humid, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (93°F) and an average temperature of 23°C (74°F). This month experiences significant rainfall with 134 mm (5.3 in) of precipitation across 15 days, leading to a humidity level of 83%. In contrast, May is warmer and drier, with temperatures ranging from a minimum of 17°C (62°F) to a scorching maximum of 37°C (99°F) and an average temperature of 26°C (79°F). The precipitation in May drops to 88 mm (3.5 in) over 14 days, resulting in a lower humidity of 65%. For more insights on the weather specific to this month, you can check San Diego weather in May.
In comparing the weather between October and June, October features slightly cooler temperatures overall, with average daily highs of 23°C (74°F) compared to June's average of 24°C (76°F). Both months experience warm conditions, with maximum temperatures peaking at 34°C (93°F) in October and slightly warmer at 35°C (95°F) in June. However, October sees more rainfall, averaging 134 mm (5.3 inches) over about 15 days, whereas June has a higher total precipitation of 183 mm (7.2 inches) but spread over 20 days, indicating that rainfall may be more frequent but lighter in June. Additionally, October's humidity is significantly higher at 83%, compared to June’s 66%, making October feel more muggy. For a detailed look at June weather, visit San Diego weather in June.
October and July present contrasting weather patterns, despite having similar minimum temperatures. In October, the average temperature is slightly lower at 23°C (74°F), while July boasts an average of 24°C (76°F). July also tends to be a bit warmer overall, with maximum temperatures reaching 35°C (95°F) compared to October's 34°C (93°F). Precipitation levels differ significantly, with October receiving 134 mm (5.3 in) of rain over 15 days, while July experiences only 42 mm (1.6 in) over just 6 days. Additionally, humidity is higher in October at 83%, compared to July's 75%. For a closer look at weather patterns, you can check out San Diego weather in July.
When comparing the weather in October and August, we notice several key differences. October experiences a slightly lower average temperature of 23°C (74°F) compared to August's warmer 25°C (76°F). The maximum temperatures also reflect this trend, with October peaking at 34°C (93°F) versus August's 36°C (97°F). Precipitation is notably higher in October, with 134 mm (5.3 in) spread over approximately 15 days, compared to August's 91 mm (3.6 in) over 14 days. Humidity levels remain similar, at 83% in October and 82% in August. For more specific insights on August weather, you can visit San Diego weather in August.
In comparing the weather between September and October, we see some notable differences. October has a slightly lower average temperature of 23°C (74°F) compared to September's 24°C (75°F), with maximum temperatures peaking at 34°C (93°F) in October and 33°C (92°F) in September. While both months have the same minimum temperature of 16°C (61°F), October experiences slightly less precipitation at 134 mm (5.3 in) over 15 days, whereas September records a higher total of 156 mm (6.2 in) spread over 19 days. Humidity levels are fairly consistent, with October at 83% compared to September's 82%. For a detailed look at September weather patterns, visit San Diego weather in September.
October typically presents warmer afternoons, with average temperatures around 23°C (74°F) and peaks reaching up to 34°C (93°F). The month is quite humid, maintaining an 83% humidity level alongside significant rainfall totaling 134 mm (5.3 in) over 15 days. In contrast, November experiences cooler temperatures, marked by a slight dip in the average to 22°C (72°F) and maximums of 33°C (91°F). Precipitation in November decreases significantly to just 31 mm (1.2 in) over 5 days, and the humidity levels moderate to 80%. For a detailed look at what to expect, visit San Diego weather in November.
In October, the weather is notably warmer with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (93°F), accompanied by higher humidity at 83% and considerable precipitation, averaging 134 mm (5.3 in) over 15 days. In contrast, December sees cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 32°C (90°F), while overall humidity drops to 76%. Additionally, December experiences significantly less rainfall, with only 8 mm (0.3 in) over just 2 days. For a more detailed look at the climate, check out San Diego weather in December.
October in San Diego ushers in a unique blend of warmth and moisture, setting it apart from the drier summer months. While daytime temperatures remain pleasantly mild, dropping to cooler evenings, the rise in humidity brings an invigorating crispness to the air, making it an ideal time for outdoor activities and scenic strolls. However, this month also sees increased rainfall, with several days contributing to a notable shift in the weather pattern. As October bids farewell to the summer heat, it transforms San Diego into a lush and vibrant experience, reminding us of nature's cyclical beauty. For a deeper understanding of San Diego's shifting climate, be sure to explore San Diego Climate.