Last updated: February 24, 2025
In December, Temecula, United States experiences a diverse range of weather conditions, with maximum temperatures reaching 28°C (82°F) and minimums dipping to 2°C (35°F). The average temperature settles at a comfortable 13°C (55°F), providing a mild backdrop to the holiday season. This month sees 66 mm (2.6 in) of rainfall over approximately 5 days, contributing to the region's 74% humidity, creating a refreshing atmosphere. Whether you're exploring the scenic vineyards or cozying up indoors, December in Temecula presents a delightful blend of warmth and occasional rain, making it an inviting destination for visitors.
In Temecula, United States, December marks a notable transition in temperatures as the year wraps up. With minimums dipping to around 2°C (35°F), the chilly nights usher in a cozy atmosphere perfect for enjoying warm beverages and festive gatherings. The days offer a crisp contrast, with average temperatures hovering at 13°C (55°F), providing a pleasant backdrop for outdoor activities. While the maximums can reach a comfortable 28°C (82°F), the overall trend indicates a gradual descent from the warmer, sun-soaked months of summer. This month not only embraces the coolness of winter but also maintains a delightful balance, making December an inviting time to explore Temecula's scenic landscapes and vibrant vineyards.
In December, Temecula witnesses a significant uptick in precipitation, mirroring the pattern seen in January with 66 mm (2.6 in) recorded, making it one of the wetter months of the year. This month, marked by 5 days of rain, features a shift away from the drier and more arid summer months, where June through August saw negligible precipitation. The trend shows a shift towards a more substantial wet season as the year closes, with December tying with January for overall precipitation while surpassing November’s 28 mm (1.1 in). This consistent winter rainfall not only rejuvenates the landscape but also provides much-needed moisture in the lead-up to the new year, hinting at the seasonal transition that defines Temecula's climate.
As the year draws to a close, December in Temecula showcases a notable increase in humidity, reaching 74%—a significant rise compared to the drier summer months of June and August, where humidity levels dipped to 48% and 42%, respectively. This upward trend from November's 66% hints at the seasonal shift, as cooler temperatures typically lead to higher moisture retention in the air. While January remains the most humid month at 72%, December's levels indicate a return to a wetter atmosphere, aligning with the overall pattern of increasing humidity that peaks in the winter months following a dry summer and autumn.
As December rolls around in Temecula, the UV Index settles at 4, indicating a moderate level of exposure. This is a gentle decline from the high and extreme indices seen in the summer months, where protection from the sun was crucial with burn times dropping to just 10 minutes during peak days. With the transition to winter, residents can enjoy longer burn times of 30 minutes, allowing for leisurely outdoor activities without the immediate concern of sunburn. This trend reflects a natural ebb and flow of UV intensity throughout the year. For more information on UV levels and safety tips, check out Temecula UV Index.
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In the heart of December, Temecula experiences a cozy transition as the year draws to a close, offering a delightful 226 hours of sunshine. While this marks a dip compared to the sun-soaked summer months—where July shines the brightest with 380 hours—the winter days still provide a warm glow, perfect for enjoying the region’s scenic vineyards and festive activities. As the months progress, sunshine gradually increases from January's modest 191 hours to an exuberant 374 hours by June, creating a vibrant tapestry of sunlight that peaks in the heart of summer. While December's light may dim, it serves as a gentle reminder of the sunny days ahead, inviting residents and visitors alike to embrace the warmth, charm, and unexpected delights of this sun-kissed locale.
In Temecula, December ushers in a notable shift in weather patterns, with the likelihood of sunny days dropping to 47%, the lowest percentage of the year. This decrease follows a significant upward trend from summer, where sun-filled days peak at 70% in August and maintain a solid 65% in October. As the year winds down, the 71% chance of sunshine in November provides a fleeting respite from the impending cloudiness, making the transition to December's cooler and less sunny climate quite palpable. Thus, while December still holds the charm of Southern California’s mild weather, it’s clear that sunshine during this month is more of a rarity than a regular occurrence.
In Temecula, as the year winds down to December, daylight begins to retreat, offering only 9 hours of sunlight. This gradual decline in daylight duration is clearly observable as the year progresses; from a generous 14 hours in the peak of summer, the days steadily shorten, reflecting the natural rhythm of the seasons. Months like March to May enjoy substantial light, typically ranging between 12 to 13 hours, which are vibrant times when activities flourish under extended daylight. As autumn sets in, daylight diminishes further, culminating in December’s fleeting hours. This pattern highlights the comforting predictability of daylight hours, inviting residents to savor the cozy charm of Temecula’s winter, even as the sun sets a little earlier.
As December settles into Temecula, the average wind speed picks up slightly to 2.2 m/s (5 mph), mirroring the gentle breezes of January and breaking a pattern of quieter winds seen in the preceding months. Throughout the year, wind speeds have fluctuated, achieving a seasonal peak of 2.4 m/s (5 mph) in the spring months of March, April, and May. The trend reveals a gradual decline in wind speed from mid-year, reaching its lowest point in November with just 1.8 m/s (4 mph). However, the arrival of December brings a refreshing return to the breezy conditions typical of the start of the year, creating a delightful atmosphere for those enjoying the region's winter charm.
The weather in Temecula 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 Temecula and find detailed weather information for every month.
In December, temperatures typically range from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), with an average of 13°C (55°F), while January shows a slight increase, reaching a maximum of 30°C (86°F) but maintaining the same minimum of 2°C (36°F). Both months experience similar precipitation levels of 66 mm (2.6 in) over approximately 5 days, with December having a slightly higher humidity at 74% compared to January's 72%. For more detailed insights about January weather specifically, you can visit Temecula weather in January.
In December, temperatures in Temecula range from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), with an average temperature of 13°C (55°F). The month sees about 66 mm (2.6 in) of precipitation over approximately 5 days, and the humidity averages around 74%. In contrast, February mirrors December's average temperature at 13°C (55°F) but features slightly lower minimum temperatures at 1°C (35°F) and a marginally higher maximum of 28°C (83°F). February experiences a bit less precipitation, totaling 64 mm (2.5 in) across 6 days, with humidity levels rising to 77%. For more detailed insights, check out Temecula weather in February.
In December, the weather tends to be quite warm, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), and a moderate humidity level of 74%. This month experiences approximately 66 mm (2.6 in) of precipitation over about 5 days. In contrast, March shows a slight increase in temperatures, with a minimum of 3°C (37°F) and a maximum of 29°C (84°F), while the average temperature hovers around 14°C (57°F). However, March has a higher number of rainy days, totaling about 10 days, with similar precipitation levels at 67 mm (2.6 in), though with a bit lower humidity at 67%. For more detailed information, you can check Temecula weather in March.
In comparing December and April weather, we can see notable differences in temperature and humidity. December experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (55°F), while April offers milder conditions, boasting a minimum of 7°C (45°F) and an average of 17°C (62°F). Additionally, April can reach maximum temperatures of 34°C (94°F), significantly higher than December's maximum of 28°C (82°F). Precipitation is also less frequent in April, with only 31 mm (1.2 in) over 3 days compared to December's 66 mm (2.6 in) over 5 days. Furthermore, humidity levels are notably lower in April at 56%, compared to December's 74%. For a more detailed look at April weather specifics, you can check Temecula weather in April.
December and May present contrasting weather patterns. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), with an average of 13°C (55°F) and relatively high humidity at 74%. The month also sees about 66 mm (2.6 in) of precipitation over five days. In comparison, May enjoys milder temperatures, with a minimum of 8°C (47°F), an average of 18°C (64°F), and a maximum of 33°C (91°F). This month features significantly less rainfall, only 19 mm (0.8 in) over five days, and lower humidity at 46%. For more detailed insights on the weather during this month, check out Temecula weather in May.
December and June present stark contrasts in weather patterns. In December, temperatures range from a chilly minimum of 2°C (35°F) to a maximum of 28°C (82°F), with an average of about 13°C (55°F). This month tends to be wetter, receiving around 66 mm (2.6 in) of precipitation over five days and maintaining a higher humidity level of 74%. In contrast, June boasts significantly warmer temperatures, with minimums at 12°C (53°F) and maximums reaching a sweltering 36°C (98°F), averaging 21°C (70°F). Rainfall is minimal in June, with only 3 mm (0.1 in) on average and no rainy days, complemented by a lower humidity of 48%. For more details on the pleasant weather during this month, check out Temecula weather in June.
December and July present starkly contrasting weather patterns. In December, temperatures range from a chilly 2°C (35°F) at night to a pleasant average of 13°C (55°F) during the day, peaking at a warm 28°C (82°F). This month sees an average precipitation of 66 mm (2.6 in) over about five days, accompanied by a higher humidity level of 74%. In contrast, July boasts a significantly warmer climate, with temperatures starting at a minimum of 14°C (58°F) and reaching an average of 25°C (77°F), soaring up to a scorching 42°C (109°F) on the hottest days. Precipitation is almost nonexistent in July, with only 4 mm (0.2 in) recorded, and not a single rainy day, resulting in a much lower humidity of 46%. For more detailed information, you can explore Temecula weather in July.
The weather in December is markedly cooler than in August, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), compared to August's warmer range of 16°C (61°F) to 37°C (99°F). December experiences more humidity at 74% and greater precipitation, averaging 66 mm (2.6 in) over about five days. In contrast, August boasts a much drier climate with only 3 mm (0.1 in) of rain over a single day, and a significantly lower humidity level of 42%. For more details on August's climate, visit Temecula weather in August.
December and September present quite distinct weather patterns. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), with an average of 13°C (55°F). The month sees about 66 mm (2.6 in) of precipitation over five days, and the humidity is relatively high at 74%. In contrast, September boasts warmer conditions, with temperatures fluctuating from a low of 12°C (53°F) to a scorching high of 43°C (109°F) and an average temperature of 24°C (75°F). Precipitation is minimal, totaling only 4 mm (0.2 in) across just one day, while humidity is significantly lower at 52%. For more details, check out Temecula weather in September.
In comparing the weather between October and December, it's notable that December experiences cooler temperatures, with averages ranging from a minimum of 2°C (35°F) to a maximum of 28°C (82°F), unlike October which boasts higher temperatures, averaging a minimum of 8°C (47°F) and peaking at 38°C (100°F). Additionally, December sees more precipitation, with 66 mm (2.6 in) falling over about 5 days, while October is relatively dry, receiving only 11 mm (0.4 in) over just 2 days. Furthermore, December's humidity is higher at 74%, compared to October's 58%, contributing to a distinctly different climate experience. For more detailed information on October's weather patterns, you can refer to Temecula weather in October.
In comparing the weather between November and December, November tends to be warmer overall, with average temperatures peaking at around 17°C (62°F) and reaching a maximum of 33°C (92°F). In contrast, December experiences cooler temperatures, with an average of 13°C (55°F) and a maximum of 28°C (82°F). Additionally, December sees a notable increase in precipitation, with 66 mm (2.6 in) over 5 days compared to November's 28 mm (1.1 in) over just 2 days. The humidity levels also rise in December to 74%, compared to 66% in November. For more detailed information, you can explore Temecula weather in November.
December in Temecula brings a refreshing change compared to the other months, marked by cooler temperatures and a noticeable increase in humidity. As the warmth of fall fades away, the average temperature dips, making it a more comfortable time for outdoor activities. You can expect sporadic rain throughout the month, with approximately five days of precipitation, which adds a touch of greenery to the landscape. While December may not boast the heat of summer, its mild conditions and tranquil charm provide a unique opportunity to experience the beauty of Temecula in a different light. For more insights, check out Temecula Climate.