Last updated: February 24, 2025
In Seaside, United States, December ushers in a mix of cool temperatures and notable precipitation. The maximum temperature reaches a pleasant 23°C (73°F), while the average settles at a comfortable 16°C (61°F). Nights can get chilly, dipping down to a minimum of 5°C (41°F). With 159 mm (6.2 in) of rainfall spread over 11 days, the month is marked by an humidity level of 86%, contributing to a fresh and invigorating coastal atmosphere. Whether enjoying vibrant sunsets or the refreshing seaside breeze, December offers a unique charm for locals and visitors alike.
In December, Seaside, United States, welcomes a cool but pleasant climate as winter settles in. With minimum temperatures hovering around 5°C (41°F) and averages reaching 16°C (61°F), residents and visitors alike can enjoy a refreshing atmosphere. The maximum temperatures typically peak at a comfortable 23°C (73°F), making it an ideal time for outdoor activities without the sweltering summer heat. This transitional month hints at the mild winter months ahead while maintaining remnants of the warm autumn, allowing for a unique blend of seasonal experiences. As the year wraps up, the crisp air and moderate temperatures create a perfect backdrop for holiday gatherings and seaside strolls.
In December, Seaside experiences a notable rise in precipitation, accumulating 159 mm (6.2 in) over 11 days of rainfall. As the year comes to a close, this month stands out with significant rainfall, surpassing November’s much drier total of 45 mm (1.8 in) from just 6 days. This trend showcases a shift towards wetter conditions as winter approaches, with December often acting as a prelude to the wetter months of January and February, which typically follow. The increase in rainfall lays the groundwork for the lush landscapes Seaside is known for, making it a pivotal month in the climate calendar.
In Seaside, United States, December brings a notable rise in humidity, reaching 86%, the highest level of the year. This increase follows a pattern where the winter months tend to feature higher humidity, especially November's 83%, which sets the stage for the cold, damp conditions typical of the region. As the year progresses, the humidity gradually decreases from 83% in January to a summer low of 70% in June before rising again in July and August. With winter settling in, December's spike underscores the area's characteristic moist atmosphere, reminding residents and visitors alike of the unique coastal climate that makes Seaside so inviting during the festive season.
In December, the UV Index in Seaside, United States, dips to 4, categorizing it as moderate and allowing a longer burn time of 30 minutes. This marks a notable decrease from the extreme levels witnessed during the summer months, where indices peaked at 12 in July. As the year draws to a close, the trend reflects a return to more manageable UV exposure, following a high-stakes summer that demanded vigilant sun protection. With the holiday season upon us, it's a relief to see a drop in UV levels, allowing residents and visitors alike to enjoy the outdoors with less concern. For more details on the UV Index throughout the year, check out Seaside UV Index.
UV Risk Categories
December in Seaside, United States, enjoys 225 hours of sunlight, marking a gentle dip as the year draws to a close. While this month reflects a slight decline from the vibrant 333 hours of May, it still offers a generous dose of winter sunshine. Notably, December's sunlight surpasses the earlier months, such as January's 187 hours, indicating a gradual increase in daylight after the shortest day of the year. With a consistent upward trend from the fall months, December's sunshine serves as a warm embrace of brightness, providing a beautiful transition into the new year and inviting residents and visitors alike to relish in the coastal charm of Seaside.
As December approaches in Seaside, the likelihood of sunny weather holds steady at 48%, marking a favorable transition from the mostly cloudy days of summer. This month showcases a notable increase in sunshine compared to the dismal summer months of June and July, which plummet to 27% and 25% respectively. November hints at winter's cheer with an impressive 67% chance of sun, suggesting that the sunny trend can linger into December. Overall, while December may not rival the brighter days of April and October—both hovering around 51% and 49%—it certainly offers a pleasant reprieve amid the waning year, making it an appealing time for outdoor activities in Seaside.
As December rolls in Seaside, United States, the daylight hours settle at around 10 hours, mirroring the earlier months of January and November. This marks a gentle transition from the vibrant 14 hours of sunlight experienced in June, showcasing the classic ebb and flow of daylight throughout the year. Following a steady increase from 11 hours in February to a peak in May, daylight gradually diminishes, reflecting the approach of winter. The pattern illustrates a predictable rhythm of nature, where each month brings a unique interplay of light, culminating in the darker days of December before the cycle begins anew.
As December arrives in Seaside, United States, the winds start to pick up slightly, registering an average speed of 5.2 m/s (12 mph). This marks a subtle rise from the gentler breezes of summer, where July recorded the calmest winds at just 3.8 m/s (8 mph). The transition into the cooler months brings a refreshing change, as average wind speeds gradually climb from November's 5.1 m/s (11 mph) to December's mild gusts. Notably, the winter months consistently show stronger winds compared to the peak of summer, with the averages dipping to their lowest during the warmer months of May and July. As the year draws to a close, Seaside embraces these invigorating winds, setting the stage for the chilly coastal charm of winter.
The weather in Seaside 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 Seaside and find detailed weather information for every month.
December and January offer contrasting weather experiences. In December, temperatures range from a mild 5°C (41°F) at night to a pleasant peak of 23°C (73°F) during the day, accompanied by significant rainfall of 159 mm (6.2 in) over 11 days, leading to high humidity levels of 86%. In contrast, January sees a dip in nighttime temperatures, with lows reaching -1°C (31°F), while the maximums remain the same at 23°C (73°F). Precipitation decreases significantly to 90 mm (3.6 in) over just 8 days, and humidity also lessens slightly to 83%. For those planning to visit, more information can be found Seaside weather in January.
In December, temperatures range from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), with an average of 16°C (61°F). The month experiences significant precipitation, totaling 159 mm (6.2 in) over 11 days, alongside a high humidity level of 86%. In contrast, February sees slightly cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 22°C (72°F), while maintaining the same average of 16°C (61°F). Precipitation in February is less, totaling 117 mm (4.6 in) over 9 days, and humidity is lower at 82%. Overall, February tends to be drier and a bit cooler than December. For more information about weather specifics, you can explore Seaside weather in February.
In December, the weather is characterized by a wider temperature range, with minimums around 5°C (41°F) and maximums reaching up to 23°C (73°F), while the average hovers at 16°C (61°F). The month experiences more precipitation, totaling 159 mm (6.2 in) over approximately 11 days, coupled with high humidity levels at 86%. In contrast, March sees slightly cooler nighttime temperatures with a minimum of 4°C (40°F), but average daily temperatures rise to 18°C (64°F) and can peak at 25°C (77°F). March is also drier, with only 62 mm (2.4 in) of rain spread across 7 days, and a lower humidity of 79%. This transition between December and March highlights a shift towards a milder and drier climate as spring approaches. For more detailed insights into March weather, check out Seaside weather in March.
When comparing the weather in December and April, December typically experiences cooler temperatures with a minimum of 5°C (41°F), averaging 16°C (61°F) and reaching a maximum of 23°C (73°F). In contrast, April brings milder conditions, starting at a minimum of 9°C (48°F), with an average temperature of 20°C (68°F) and a maximum of 24°C (76°F). Precipitation is heavier in December, totaling 159 mm (6.2 in) over 11 days, while April sees less rain, with 123 mm (4.8 in) spread across just 9 days. Additionally, humidity levels are higher in December at 86%, compared to 77% in April. For those interested in seaside activities, more information can be found here: Seaside weather in April.
In December, the weather is considerably cooler, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), and an average of 16°C (61°F). This month sees higher precipitation, with around 159 mm (6.2 in) over 11 days and an elevated humidity level of 86%. In contrast, May brings much warmer conditions, featuring minimum temperatures of 15°C (59°F) and maximums reaching 29°C (84°F), along with an average temperature of 24°C (75°F). Rainfall is lighter in May, totaling 85 mm (3.3 in) over just 8 days, and the humidity is lower at 74%. For more details on the pleasant weather in May, you can check out Seaside weather in May.
December offers a milder climate with average temperatures ranging from a cool 5°C (41°F) to a warm 23°C (73°F), and high humidity levels at 86%. The month is characterized by 159 mm (6.2 in) of precipitation spread across about 11 days, making it a relatively wet month. In contrast, June experiences significantly warmer temperatures, with minimums around 22°C (72°F) and maximums reaching up to 31°C (87°F). Although the precipitation in June is slightly higher at 172 mm (6.8 in) over 15 days, the humidity is lower at 70%, providing a more comfortable summer experience. For those planning a visit, you can check out more details about the conditions by following this link: Seaside weather in June.
In December, the weather is notably cooler, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F) and an average of 16°C (61°F). This month experiences higher humidity at 86% and significant rainfall, totaling 159 mm (6.2 in) over 11 days. In contrast, July offers a much warmer climate, with temperatures averaging 28°C (82°F) and peaking at 31°C (87°F). Although there's slightly less total precipitation in July (139 mm or 5.5 in), rainfalls occur over more days, totaling 20, with humidity levels at a comfortable 78%. For a detailed look at what to expect during July, check out Seaside weather in July.
In December, the weather is notably cooler with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), and an average of 16°C (61°F). The month also sees significant precipitation, averaging 159 mm (6.2 in) over 11 days, accompanied by high humidity levels at 86%. In contrast, August boasts warmer temperatures, with a minimum of 24°C (75°F) and a maximum of 32°C (89°F), averaging around 28°C (83°F). However, August experiences even heavier rainfall, totaling 202 mm (8.0 in) over 21 days, but with lower humidity at 78%. For more details on the weather during this summer month, visit Seaside weather in August.
In comparing December and September weather, December tends to be cooler with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 23°C (73°F), while September is significantly warmer, featuring temperatures that range from a minimum of 19°C (66°F) to a maximum of 32°C (90°F). Additionally, December experiences more humidity at 86%, compared to September's 79%, which can make those cooler temperatures feel a bit more damp. Rainfall is also noteworthy; December sees about 159 mm (6.2 in) of precipitation over 11 days, whereas September is wetter, with 201 mm (7.9 in) over 13 days. For more detailed insights, check out the Seaside weather in September.
When comparing the weather between December and October, it's clear that October is generally warmer, with average temperatures reaching 24°C (76°F) and maximums peaking at 30°C (86°F). In contrast, December has cooler average temperatures of 16°C (61°F), with a maximum of 23°C (73°F). Additionally, October experiences slightly less precipitation, totaling 132 mm (5.2 in) over 9 days, compared to December's 159 mm (6.2 in) over 11 days. Humidity levels are also lower in October at 74%, compared to 86% in December. For a more detailed look at this month's weather, check out Seaside weather in October.
In comparing the weather patterns of November and December, we notice a distinct shift in temperature and precipitation. While November boasts a slightly higher average temperature of 18°C (65°F) and a maximum of 26°C (80°F), December sees cooler averages with a maximum of 23°C (73°F). Importantly, December experiences significantly more rainfall, accumulating 159 mm (6.2 in) over 11 days compared to November's 45 mm (1.8 in) over just 6 days. Additionally, humidity levels remain fairly consistent, with December at 86% and November at 83%. This contrast highlights November as a drier and warmer month, making it a favorable time for outdoor activities. For more insights, check out Seaside weather in November.
In December, Seaside experiences a distinct shift in weather compared to the warmer months. With cooler temperatures averaging around 16°C (61°F) and a noticeable increase in precipitation, this month ushers in a more tranquil atmosphere. The 86% humidity—while still high—adds a crispness to the air, making the refreshing coastal breezes particularly enjoyable. Unlike the summer's heat and humidity, December offers a pleasant reprieve, although the 11 rainy days remind us that winter is on its way. For those looking to explore the unique charm of Seaside during this time, detailed insights can be found at Seaside Climate.