Last updated: April 22, 2025
August in San Diego, Mexico, offers a warm and inviting climate characterized by a maximum temperature of 31°C (88°F) and an average of 20°C (69°F), making it ideal for outdoor activities. However, visitors should be prepared for the possibility of rain, as the month sees an average precipitation of 145 mm (5.7 in) over 17 days, contributing to a humidity level of around 68%. This combination of warmth and occasional showers creates a lush environment, perfect for enjoying the region's natural beauty and vibrant culture.
In August, San Diego, Mexico, maintains a comfortable climate with temperatures that reflect the peak of summer. With minimum temperatures hovering around 12°C (54°F) and averages reaching 20°C (69°F), the days are pleasantly warm. The maximum temperatures peak at 31°C (88°F), indicating a welcomed warmth without veering into excessive heat. This month continues the trend from July, where temperatures stabilized, showing a slight decline from the earlier months of May and April. As the summer winds down, August presents an ideal opportunity for outdoor activities, allowing visitors and locals alike to enjoy the mild yet warm conditions before the cooler months approach.
August in San Diego, Mexico, sees a significant dip in rainfall compared to the preceding months, receiving 145 mm (5.7 in) of precipitation over 17 days. This figure, while lower than the torrential rainfall experienced in June (156 mm) and July (160 mm), still showcases the region's vibrant monsoon season. The consistent pattern of elevated rainfall from June through September illustrates a peak in precipitation during these warmer months, with August acting as a transition point as it treads closely behind. Notably, the frequency of rainy days in August remains robust, reflecting the localized storms typical of this time, which contribute to the lush greenery and vitality of the landscape. As summer wanes, the precipitation trends hint at a gradual shift towards the drier months ahead, but for now, the seasonal rhythm continues to thrive.
During August, humidity in San Diego, Mexico, averages a comfortable 68%, marking a slight decrease from the more humid months of June and July, which register at 76% and 67% respectively. This makes August a transition period as the intense summer heat begins to wane. However, as the month draws to a close, the humidity levels are set to rise sharply in September, hitting 81%, which foreshadows the increasingly damp conditions of the approaching autumn months. On the whole, the summer months exhibit a fluctuation in humidity, with January leading the yearly averages at 74%, while late fall and winter months settle into higher humidity levels, peaking in November at 84%. Overall, August serves as a pivotal moment in the humidity trends of the year, bridging the gap between the moist summer and the wetter fall months.
In August, San Diego, Mexico experiences a UV Index of 14, maintaining its position within the extreme exposure category and requiring vigilant sun protection with a burn time of just 10 minutes. This trend of high UV exposure extends through summer, as both July and June also recorded identical indexes. The relentless intensity of the sun during these months underscores the necessity of sun safety measures. Interestingly, while the UV index begins to taper off in the following months, September continues with the same extreme level, indicating that sun precautions should remain a priority. For more detailed insights on UV levels throughout the year, check out San Diego UV Index.
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August in San Diego, Mexico, is a delightful culmination of a sun-drenched summer, boasting an impressive 327 hours of sunshine. This month reflects a trend of consistently high sunshine hours, peaking in May with 345 hours, and maintaining a warm glow through the summer months with July also performing strongly at 332 hours. As we transition into fall, September takes a slight dip to 295 hours, yet remains comfortably bright compared to the winter months ahead. The overall pattern illustrates a vibrant seasonal shift, with San Diego basking in abundant sunlight, making it an ideal getaway for sun lovers.
In August, the likelihood of sunny weather in San Diego, Mexico, dips to 40%, marking a notable contrast to the higher probabilities experienced in the earlier months of the year. Following a trend of diminishing sunshine from May through July, the sun's appearances become even more infrequent as summer wanes. Notably, this low percentage is part of a broader pattern, as June and July showcase just 24% chance of sun, hinting at a cooler, potentially overcast month. As one prepares for August, it’s wise to manage expectations and perhaps keep an umbrella handy, while still embracing the sunny days that may come their way.
In August, San Diego basks in an average of 12 hours of daylight, a slight decline from the sun-drenched days of summer peak in June and July, when the city enjoys its longest daylight duration of 13 hours. As summer begins to wane, this reduction hints at the approaching fall months, where daylight gradually decreases through September and beyond, with October and November reverting to 11 hours. This rhythmic pattern not only marks the transition of seasons but also underscores San Diego's consistent climate, making it a perennial favorite for sun-seekers year-round.
In San Diego, Mexico, the August winds offer a mild breath of air, mirroring the gentle breezes of June and the earlier summer months, with an average speed of 2.5 m/s (5 mph). This consistent wind pattern is part of a broader trend where the gusts are generally at their peak in spring, culminating in April at 2.9 m/s (7 mph) before tapering off through the later summer months. As the year progresses, wind speeds gradually decrease, with the softest winds noted in September at just 1.9 m/s (4 mph). Thus, August serves as a delightful bridge, maintaining a pleasant coastal atmosphere while marking the transition toward the quieter winds of fall.
The weather in San Diego changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.
August and January present contrasting weather patterns. In August, temperatures range from a minimum of 12°C (54°F) to a maximum of 31°C (88°F), with an average of 20°C (69°F), making it a warm and humid month with significant rainfall of 145 mm (5.7 in) over 17 days. In stark contrast, January offers cooler conditions, with temperatures ranging from a low of 2°C (36°F) to a high of 29°C (84°F) and an average of 15°C (59°F). This month experiences very little rainfall, totaling only 4 mm (0.2 in) across just one day, and a slightly higher humidity level of 74%. For more detailed information, you can check San Diego weather in January.
August and February offer contrasting weather patterns. In August, temperatures range from a minimum of 12°C (54°F) to a maximum of 31°C (88°F), with an average of 20°C (69°F). This month experiences higher humidity at 68% and significantly more rainfall, totaling 145 mm (5.7 in) across 17 days. Conversely, February has a milder climate, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 31°C (88°F) and an average of 17°C (64°F). It sees minimal precipitation of only 6 mm (0.2 in) on just one day, coupled with slightly lower humidity at 65%. For a detailed look at February's weather in this region, visit San Diego weather in February.
In comparing the weather of August and March, both months share an average temperature of 20°C (69°F), but they differ significantly in other aspects. August experiences warmer extremes with maximum temperatures reaching up to 31°C (88°F) and frequent rainfall, averaging 145 mm (5.7 in) over 17 days, resulting in higher humidity at 68%. In contrast, March can see even higher maximum temperatures of 33°C (92°F), yet it enjoys a much drier climate with only 7 mm (0.3 in) of precipitation over just 2 days and a lower humidity of 58%. For more detailed insights, you can check San Diego weather in March.
In comparing the weather of August and April, notable differences emerge. August sees a wider temperature range, with minimums around 12°C (54°F) and maximums reaching 31°C (88°F), while April offers a slightly lower range with minimums of 8°C (46°F) and peaks at 35°C (95°F). Despite the warmer average temperature in April at 22°C (72°F), August is characterized by a higher average humidity of 68%, compared to April's more comfortable 58%. Additionally, August experiences significant precipitation with 145 mm (5.7 inches) over 17 days, in stark contrast to April, which records only 3 mm (0.1 inches) with no rainy days. For more details, you can check San Diego weather in April.
In comparing the weather of August and May, we notice some interesting contrasts. August tends to be more humid, with an average humidity of 68% and rainfall occurring on 17 days, resulting in a total precipitation of 145 mm (5.7 in). In contrast, May boasts slightly warmer average temperatures, peaking at a maximum of 36°C (97°F) but experiences much less precipitation, totaling only 36 mm (1.4 in) over six days. While both months share a similar minimum temperature of around 12°C (54°F), May offers a drier and hotter climate, making it more appealing for outdoor activities. For more details about May weather, you can refer to San Diego weather in May.
When comparing the weather in June and August, we see distinct differences in temperature and humidity levels. June boasts a higher average temperature of 22°C (72°F), peaking at 36°C (97°F), while August has a lower average of 20°C (69°F), with a maximum of 31°C (88°F). Both months experience considerable precipitation, with August receiving 145 mm (5.7 in) over 17 days, slightly less than June's 156 mm (6.2 in) across 15 days. Furthermore, June tends to be more humid at 76%, compared to August's 68%. For more detailed weather insights, you can check San Diego weather in June.
In comparing the weather of July and August, we notice that both months have similar temperature ranges, with average temperatures around 20°C (69°F) and maximum temperatures peaking at 31°C (88°F for August and 89°F for July). However, August tends to be slightly wetter, receiving 145 mm (5.7 in) of precipitation over 17 days, compared to July's 160 mm (6.3 in) over 20 days. Humidity levels are also comparable, with August at 68% and July slightly lower at 67%. For more details, you can check out San Diego weather in July.
In August, the weather features a minimum temperature of 12°C (54°F) and peaks at 31°C (88°F), with an average temperature of 20°C (69°F). While August sees a total precipitation of 145 mm (5.7 in) over 17 days, the humidity levels rest at a comfortable 68%. In contrast, September experiences slightly cooler nights with a minimum temperature of 9°C (49°F), while still reaching a maximum of 31°C (88°F) and maintaining the same average temperature of 20°C (68°F). Precipitation in September rises marginally to 147 mm (5.8 in) over the same number of days, but with higher humidity levels at 81%. For more details on September's weather, check out San Diego weather in September.
August and October exhibit contrasting weather patterns despite having similar maximum temperatures. In August, the average temperature reaches 20°C (69°F), with a higher minimum of 12°C (54°F) and maximum of 31°C (88°F). This month is characterized by frequent rainfall, totaling 145 mm (5.7 in) across 17 days, and a humidity level of 68%. In comparison, October brings a cooler minimum temperature of 6°C (43°F) while maintaining a similar maximum around 31°C (89°F) and an average of 19°C (67°F). However, it experiences significantly less precipitation at just 48 mm (1.9 in) over 8 days and higher humidity at 83%. For more details on October weather in the area, check San Diego weather in October.
In August, the weather is characterized by warm temperatures, with a minimum of 12°C (54°F) and an average high reaching up to 31°C (88°F). This month experiences significant rainfall, totaling 145 mm (5.7 in) over about 17 days, along with a humidity level of 68%, making it feel quite tropical. In contrast, November sees a noticeable drop in temperature with a minimum of 2°C (36°F) and an average high of 30°C (87°F). Precipitation is much lighter in November, amounting to just 16 mm (0.6 in) across only 2 days, although humidity rises to 84%, creating a different kind of crispness in the air. For more detailed insights into the November climate, you can visit San Diego weather in November.
In comparing the weather between August and December, significant differences emerge in temperature and precipitation. August features a wider temperature range with a minimum of 12°C (54°F), an average of 20°C (69°F), and a maximum of 31°C (88°F), alongside considerable precipitation of 145 mm (5.7 in) spread over 17 days, resulting in a humidity level of 68%. In contrast, December sees cooler temperatures, with a minimum of 1°C (34°F), an average of 15°C (59°F), and a maximum of 29°C (84°F). December also boasts far less precipitation, with only 4 mm (0.1 in) occurring over just one day, accompanied by a higher humidity of 81%. For more detailed insights on December weather in this location, check out San Diego weather in December.
In August, San Diego experiences a unique blend of warmth and moisture, making it distinctly different from other months. With maximum temperatures reaching up to 31°C (88°F) and a comfortable average of 20°C (69°F), this time of year is perfect for outdoor activities, although humidity can be slightly higher at 68%. However, the city also sees an increase in precipitation, accumulating 145 mm (5.7 in) over 17 days, which is more than usual, resulting in occasional fleeting showers. This combination of warmth and rain adds a refreshing twist to the summer heat, making it a dynamic month for visitors. For a deeper understanding of San Diego's climate variations throughout the year, check out San Diego Climate.