Last updated: February 24, 2025
December in Del Mar, United States, offers a mild coastal climate, with temperatures peaking at a pleasant 25°C (77°F) and settling to an average of 14°C (57°F). Evenings can be brisk, dipping to a minimum of 6°C (43°F), creating a refreshing contrast throughout the day. Visitors can expect a total precipitation of 73 mm (2.9 in) over approximately 6 days, highlighting a few wet patches amid predominantly dry conditions. The air is typically moist, with humidity levels hovering around 74%, contributing to the serene ambiance of this charming seaside locale during the festive month.
In Del Mar, December brings a refreshing chill as temperatures begin to dip, with minimums around 6°C (43°F) and averages settling at 14°C (57°F). While daytime highs can still reach a pleasant 25°C (77°F), the overall trend showcases a transition to cooler weather as the year winds down. This month serves as a precursor to the colder winter months ahead, offering a comforting coastal atmosphere perfect for brisk walks along the beach or cozy evenings by the fire. Visitors can enjoy the mild winter vibes, making Del Mar an inviting escape during the festive season.
In Del Mar, December marks a notable increase in precipitation, with 73 mm (2.9 in) of rain recorded over 6 days. This uptick in rainfall contrasts sharply with the drier summer months, where virtually no rain falls from June to August. Following a gradual decline in precipitation from January through May, December's totals reflect the onset of winter, restoring moisture levels in preparation for the drier January that follows. Interestingly, while November brings a comparatively modest 34 mm (1.3 in) over just 2 days, December almost doubles that amount, emphasizing the shift towards wetter conditions as the year concludes. This pattern underscores Del Mar's seasonal variability, showcasing how winter can rejuvenate the region after a prolonged dry spell.
As December settles in Del Mar, the humidity levels begin to rise once again, reaching 74%. This marks a noticeable trend following the drier months of summer, where levels dipped to a low of 42% in August. The transition from winter to spring showcases a gradual increase in humidity; however, it's the late fall and winter months that see a resurgence. Starting from November with 66%, December's humidity reflects the wet season's arrival, creating a more moisture-laden atmosphere that contrasts sharply with the summer's dry heat. As the year wraps up, residents can expect a return to the refreshing coastal moistness that characterizes Del Mar's winter climate.
In Del Mar, the UV Index experiences a notable seasonal variation, with December reflecting a return to mild levels typical of winter months. The UV Index stands at 4, categorized as moderate, which allows for a burn time of approximately 30 minutes for fair-skinned individuals. This consistent drop from the extreme summer months—where the index peaked at 12 in June—highlights a significant decline in UV intensity as we transition into the colder season. Overall, December offers a refreshing reprieve, with lower UV exposure and a safer environment for outdoor activities. For those looking to plan their sun exposure strategically, understanding these trends can help ensure safety and enjoyment during the winter days. Learn more about the UV Index in Del Mar Del Mar UV Index.
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In Del Mar, December brings a gentle transition into winter, with 228 hours of sunshine illuminating the coastline. While this marks a decrease from the sun-drenched highs of July and June, where sunshine peaked at 378 and 369 hours respectively, it still offers a charming respite from the colder months elsewhere. The trend of gradually decreasing daylight hours from summer into winter is evident, yet Del Mar’s December sun provides a lovely backdrop for beach strolls and coastal adventures. As the year winds down, this month exemplifies the alluring climate of Southern California, blending warm days with cooler evenings, perfect for holiday gatherings by the sea.
In Del Mar, December marks a notable dip in the likelihood of sunny weather, with only a 46% chance of clear skies. This figure contrasts sharply with the more promising sun probabilities seen in the preceding fall months, where November offers a 66% chance, hinting that sunshine may be fleeting as winter settles in. The trend clearly demonstrates that while the region enjoys a generally sunny climate throughout the year, December often presents a noteworthy exception, signaling a shift towards cooler, cloudier days. Thus, if you're planning outdoor activities during this time, it may be wise to keep an eye on the forecast.
As December rolls into Del Mar, the daylight duration dips to 9 hours, marking the shortest days of the year. This trend reflects a gradual decline from a peak of 14 hours during the sunniest months of June and July. Following the vibrant days of summer, daylight begins to wane in August, settling into a consistent pattern of 11 to 12 hours through autumn. As winter approaches, the diminishing sunlight in December serves as a gentle reminder of nature's cycles, making those precious hours of daylight even more cherished as the year draws to a close.
As December sweeps into Del Mar, the coastal breeze settles into a pleasant rhythm, with an average wind speed of 2.7 m/s (6 mph). This marks a slight uptick from the 2.0 m/s (5 mph) recorded in November, signaling a transition toward the breezier months of spring. Throughout the year, wind speeds generally hover around the 2.5 to 2.9 m/s range, creating a consistent, gentle air that enhances the charm of Del Mar's coastal landscape. The winter months may not reach the heights of summer breezes, but this invigorating wind serves to refresh the spirit, making December an enjoyable time for outdoor enthusiasts and beachgoers alike.
The weather in Del Mar changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Del Mar and find detailed weather information for every month.
In comparison to December, January shows a similar temperature profile, with minimum temperatures consistently around 6°C (43°F) and average temperatures at 14°C (57°F). However, January experiences a slightly warmer maximum temperature of 26°C (79°F) compared to December's 25°C (77°F). Precipitation levels decrease slightly in January to 67 mm (2.6 in) over 5 days, compared to December's 73 mm (2.9 in) over 6 days. Humidity also drops marginally from 74% in December to 72% in January, suggesting a slightly drier feel to the weather. For more detailed information on January weather, you can visit Del Mar weather in January.
In December, the weather typically ranges from a minimum temperature of 6°C (43°F) to a maximum of 25°C (77°F), with an average temperature of 14°C (57°F). The month sees about 73 mm (2.9 in) of precipitation over approximately 6 days, along with a humidity level of 74%. In contrast, February presents slightly cooler conditions with a minimum of 5°C (42°F) and a maximum of 26°C (79°F), while the average temperature drops to 13°C (56°F). Precipitation is similar, at 72 mm (2.8 in), but occurs over 7 days, and humidity increases slightly to 77%. For more detailed insights on February weather, check out Del Mar weather in February.
December and March in Del Mar exhibit similar temperature ranges, with both months seeing an average of 14°C (57°F) and a maximum of 25°C (77°F). However, December tends to be slightly cooler at night with a minimum temperature of 6°C (43°F), compared to March’s minimum of 7°C (44°F). Precipitation is more frequent in March, occurring over 10 days, though the total amount is slightly less at 64 mm (2.5 in) compared to December's 73 mm (2.9 in). Additionally, March experiences lower humidity levels at 67%, making it feel a bit drier than the more humid December, which averages 74%. For a detailed look at the weather conditions, check out Del Mar weather in March.
In December, the weather tends to be milder, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 25°C (77°F), and an average of 14°C (57°F). This month experiences more rainfall, with about 73 mm (2.9 in) spread over 6 days, contributing to a higher humidity level of 74%. In contrast, April brings slightly warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 29°C (84°F), averaging 16°C (61°F). Rainfall is less frequent in April, totaling around 30 mm (1.2 in) over just 3 days, resulting in a lower humidity of 56%. For more details, check out Del Mar weather in April.
In December, the weather tends to be milder with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 25°C (77°F), resulting in an average of 14°C (57°F). The month is relatively wet, with 73 mm (2.9 in) of precipitation spread over 6 days and a higher humidity level of 74%. In contrast, May experiences slightly warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 26°C (79°F), averaging 17°C (62°F). It sees significantly less precipitation at 23 mm (0.9 in) over only 4 days and a drop in humidity to 46%. For more detailed insights, check out Del Mar weather in May.
When comparing the weather in December and June, notable differences emerge. December experiences a wider range of temperatures, with minimums around 6°C (43°F) and maximums reaching up to 25°C (77°F), while June remains warmer overall, with minimums starting at 14°C (57°F) and maxing out at 29°C (85°F). Additionally, December sees significantly more precipitation, averaging 73 mm over six days, compared to the dry June, which records just 4 mm and no rainy days at all. The humidity also varies; December has a higher average humidity of 74%, making the air feel quite moist, whereas June's humidity is more comfortable at 48%. For more specific weather details in June, you can visit Del Mar weather in June.
December and July present stark contrasts in weather patterns. December sees temperatures ranging from a cool minimum of 6°C (43°F) to a warm maximum of 25°C (77°F), with an average temperature of 14°C (57°F). In addition, this month experiences considerable precipitation, averaging 73 mm (2.9 in) over six days, resulting in a humid atmosphere with 74% humidity. In contrast, July boasts much warmer temperatures, with a minimum of 16°C (61°F) and a maximum of 32°C (89°F), averaging 21°C (70°F). The month is notably dry, receiving only 2 mm (0.1 in) of rainfall over the entire month, and features significantly lower humidity at 46%. For more details on the July weather, you can check out Del Mar weather in July.
December and August present notably contrasting weather conditions. In December, temperatures range from a chilly minimum of 6°C (43°F) to a maximum of 25°C (77°F), with an average of 14°C (57°F). The month experiences moderate precipitation, with 73 mm (2.9 in) occurring over 6 days, and a humidity level of 74%, making it feel quite damp. In stark contrast, August boasts a significantly warmer climate, with temperatures varying from a minimum of 17°C (63°F) to a comfortable maximum of 30°C (86°F) and an average of 22°C (72°F). Notably, August is characterized by minimal precipitation—only 2 mm (0.1 in) on no days—and a much lower humidity level of 42%. For a more detailed look at the summer weather, visit Del Mar weather in August.
Comparing the weather in December and September reveals notable differences. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 25°C (77°F), with an average of 14°C (57°F). This month experiences around 73 mm (2.9 in) of precipitation over six days, and humidity levels are relatively high at 74%. In contrast, September boasts warmer temperatures, with a minimum of 15°C (60°F), an average of 21°C (71°F), and a maximum of 32°C (90°F). Remarkably, September sees minimal precipitation, with only 5 mm (0.2 in) and no rainy days, alongside a lower humidity of 52%. For more detailed insights, you can check Del Mar weather in September.
In comparing the weather between December and October, we see distinct differences in temperature and precipitation patterns. December features milder temperatures with a minimum of 6°C (43°F) and a maximum of 25°C (77°F), while October offers warmer conditions, ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F). Additionally, October experiences significantly less precipitation, with only 13 mm (0.5 in) recorded over 2 days, compared to December's 73 mm (2.9 in) spread over 6 days. The humidity is also lower in October at 58%, compared to December's 74%. For more detailed insights, you can check Del Mar weather in October.
When comparing the weather in December and November, December experiences slightly cooler temperatures, with a minimum of 6°C (43°F) and an average of 14°C (57°F), compared to November's minimum of 9°C (48°F) and average of 17°C (62°F). Additionally, December sees more rainfall, totaling 73 mm (2.9 in) over six days, while November has only 34 mm (1.3 in) across just two days. Humidity levels are also higher in December at 74%, compared to November's 66%. For more detailed insights, check out Del Mar weather in November.
In December, Del Mar experiences a notable shift in weather compared to the rest of the year. With cooler temperatures, the average dips to a refreshing 14°C (57°F), providing a comfortable respite from the summer heat. Although the precipitation levels rise slightly, resulting in about 73 mm over approximately six days, this seasonal moisture ultimately enhances the coastal landscape's beauty. Coupled with a humidity level settling around 74%, December feels distinctly brisk yet invigorating. For those curious about what to expect throughout the year, more detailed information can be found at Del Mar Climate.