Last updated: February 24, 2025
December in Sausalito, United States, is characterized by a mild climate and a touch of winter charm. With average temperatures hovering around 11°C (52°F), residents experience a maximum of 20°C (69°F), while nighttime dips can reach a cool 4°C (40°F). This month sees approximately 95 mm (3.7 in) of precipitation, occurring over about 9 days, making it one of the wetter periods of the year. The humidity levels are around 79%, lending a crispness to the air and often resulting in a picturesque, misty landscape. Whether you're enjoying the holiday decorations or taking in the stunning bay views, December in Sausalito offers a unique blend of vibrant seasonal weather and tranquil coastal beauty.
In December, Sausalito experiences mild and comfortable temperatures, typical for this charming coastal town. With a minimum of 4°C (40°F) and a steady average of 11°C (52°F), December's climate reflects a slight chill as winter unfolds. The maximum temperature can reach 20°C (69°F), offering a pleasant respite for outdoor enthusiasts. This month marks a transition from the cooler fall months, with temperatures gradually dropping since November, yet remaining notably warmer than many other regions at this time. The consistent averages indicate that while it's cooler than the preceding months, especially compared to the warmer heights of summer, Sausalito’s December weather fosters a cozy ambiance perfect for savoring waterfront views and festive holiday cheer.
In December, Sausalito experiences a notable uptick in precipitation, receiving 95 mm (3.7 in) of rain over 9 days, marking a significant shift from the drier summer months. As the year draws to a close, the rainfall is reflective of the seasonal change, with December following a pattern of increased moisture after a relatively dry summer, where only a scant 3 mm fell in both July and August. This increase in precipitation establishes a clear trend, as the region transitions from the dry spell to a wetter climate, culminating in a month that boasts nearly double the rainfall of the preceding month, November, which recorded 50 mm (2.0 in). The rhythm of winter rains not only enriches the local ecosystem but also brings a refreshing reprieve from the earlier drought-like conditions.
In Sausalito, United States, December brings a welcoming dip in humidity, settling at 79%. This marks a gradual decline from the summer months, where humidity peaks at 87% in both July and August. Following a steady decrease through fall, the winter months maintain a relatively stable humidity level, with December mirroring the conditions of November. Overall, the trend showcases a noticeable shift from the high moisture levels of summer, as the year closes with crisp, refreshing air that invites residents and visitors alike to enjoy the picturesque waterfront and scenic views.
In Sausalito, the UV Index in December settles at a moderate level of 3, indicating that while you're unlikely to burn quickly, it's still wise to take some precautions. This trend of moderate exposure begins in January and remains consistent through November, showcasing a seasonal dip in UV intensity as winter settles in. Notably, the highest UV levels kick off in March, peaking in summer months, where indices soar to extreme levels of 11. As a result, the far brighter days of spring and summer starkly contrast with the gentle UV rays of December, making it a great time to enjoy outdoor activities without the frenzied sun protection needed during the summer. For detailed insights on the UV Index throughout the year, check out Sausalito UV Index.
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December in Sausalito wraps up the year with 194 hours of sunshine, marking a gentle decline from the peak of 355 hours in June. This month typically witnesses a shift in weather, as days grow shorter and cooler, especially compared to the 341 hours of brightness seen in May. While December may not bask in the abundant sunlight of the summer months, it still offers a respectable amount, showcasing the serene beauty of winter in this coastal gem. The trend of diminishing light continues into the winter months, but Sausalito’s charm persists, inviting visitors to enjoy its views and vibrant atmosphere even amidst the seasonal changes.
In December, Sausalito experiences a notable dip in sunny weather, with only a 33% chance of sun. This trend marks a significant decrease compared to the sunnier months of May (66%) and March (62%). As the year winds down, cooler temperatures and increased cloud cover become more prevalent, diminishing the likelihood of clear skies. This pattern highlights the transition from the warmer spring and early summer months, where sunshine is more abundant, to the cooler, cloudier winter landscape, making December one of the cloudier months for this picturesque coastal town.
In Sausalito, December marks the transition towards the year's shortest days, with daylight lasting only 9 hours. This dwindling sunlight mirrors the year's gradual decline since the long, bright stretches of summer, when the sun graced the skies for up to 14 hours. As the months progress from the vibrant brightness of May and June, daylight begins to shrink steadily, with November offering just a glimpse more at 10 hours before winter's embrace sets in. The rhythm of the seasons becomes evident, highlighting the interplay of light and darkness, as Sausalito gears up for the cozy charms of winter with its shorter, yet enchanting days.
As December settles in Sausalito, the wind begins to whisper tales of the year winding down, with an average speed of 3.9 m/s (9 mph). While this month’s breezes are a gentle reminder of the impending winter, they also mark a noticeable trend from the preceding months. After a gradual increase from the chill of autumn, December's winds are slightly less vigorous than the seasonal highs of late spring, which reached 5.4 m/s (12 mph). Despite this, the winds in December maintain an energetic pulse, positioning them above the calmest autumn months and allowing for delightful strolls along the waterfront, where the beauty of the season and the soft rustling leaves create a perfect backdrop for reflection. As the year comes to a close, Sausalito's winds carry both a sense of tranquility and the promise of renewal in the new year ahead.
The weather in Sausalito 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 Sausalito and find detailed weather information for every month.
In comparing the weather of December and January, both months exhibit similar average temperatures, with January experiencing a slightly lower minimum temperature of 3°C (38°F) compared to December's 4°C (40°F). The maximum temperature in January is just a degree higher at 21°C (70°F), keeping the overall range consistent between the two months. However, January is marked by increased precipitation of 106 mm (4.2 in) over the same number of rainy days as December, which had 95 mm (3.7 in). Additionally, humidity rises from 79% in December to 85% in January, contributing to a slightly damp and chilly atmosphere. For a more detailed look at January weather specifics, visit Sausalito weather in January.
Comparing the weather in December and February reveals some similarities as well as notable differences. Both months share an average temperature of 11°C (52°F), with minimums tending to hover around 4°C (40°F) in December and 4°C (39°F) in February. However, February experiences slightly more precipitation, totaling 109 mm (4.3 in) compared to December’s 95 mm (3.7 in), indicating a wetter climate during that month. Additionally, February exhibits a higher humidity level at 82%, compared to December's 79%. For more detailed information about February weather specifically, you can visit Sausalito weather in February.
December and March share similar maximum temperatures, both reaching up to 20°C (69°F), but December tends to have slightly lower average temperatures, with a minimum of 4°C (40°F) compared to March's 5°C (42°F). Precipitation is more abundant in December, totaling 95 mm (3.7 in) over 9 days, whereas March sees a bit less at 78 mm (3.1 in) across 10 days, indicating a relatively wetter start to winter. Humidity levels are also higher in March at 82%, compared to December's 79%. For a closer look at the specifics of March weather, you can check out Sausalito weather in March.
In December, the weather tends to be cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 20°C (69°F). The month typically sees more precipitation, totaling around 95 mm (3.7 in) over about 9 days, while humidity remains steady at 79%.
In contrast, April ushers in milder temperatures, with a minimum of 7°C (44°F) and a maximum reaching 28°C (82°F), making it significantly warmer on average. Additionally, April experiences less rainfall, recording only 35 mm (1.4 in) across 5 days, while also maintaining the same humidity level of 79%.
For more detailed insights on weather during this month, visit Sausalito weather in April.
When comparing the weather in December and May, several differences stand out. In December, temperatures range from a chilly 4°C (40°F) at night to a mild maximum of 20°C (69°F) during the day, while May experiences warmer conditions, with minimums of 8°C (47°F) and highs reaching 24°C (75°F). December is also much wetter, seeing an average of 95 mm (3.7 in) of precipitation over 9 days, whereas May is considerably drier with just 20 mm (0.8 in) on only 2 days. Additionally, humidity levels are slightly higher in May, at 83%, compared to 79% in December. For more details on May weather, check out Sausalito weather in May.
December features milder temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 20°C (69°F), with an average of 11°C (52°F). It is characterized by higher precipitation levels of 95 mm over about 9 days, resulting in a rather humid atmosphere with 79% humidity. In contrast, June offers warmer conditions, with temperatures starting at a minimum of 10°C (51°F) and soaring to a maximum of 31°C (88°F), averaging around 15°C (60°F). The month boasts significantly lower precipitation, with only 3 mm recorded and no rainy days, though humidity remains relatively high at 84%. For more details on June weather, check out Sausalito weather in June.
In December, temperatures in Sausalito range from a minimum of 4°C (40°F) to a maximum of 20°C (69°F), while the average temperature hovers around 11°C (52°F). This month sees more rainfall, with about 95 mm (3.7 in) of precipitation spread over 9 days, and the humidity level is relatively high at 79%. In contrast, July offers a much warmer experience, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (76°F) and an average of 15°C (60°F). The weather is much drier in July, with only about 3 mm (0.1 in) of precipitation and no rainy days, although humidity is slightly higher at 87%. For more detailed information, you can check out Sausalito weather in July.
When comparing the weather in December and August, notable differences emerge. December sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 20°C (69°F), while August offers warmer conditions, ranging from a minimum of 11°C (53°F) to a maximum of 27°C (81°F). Precipitation is significantly higher in December, with 95 mm (3.7 in) recorded across 9 days, in stark contrast to the virtually dry conditions in August, which only experiences 2 mm (0.1 in) with no rainy days. Humidity levels are also elevated in August at 87%, compared to December's 79%. For more detailed insights about the specific weather in August, check out Sausalito weather in August.
December and September present contrasting weather conditions. In December, temperatures range from a cool minimum of 4°C (40°F) to a maximum of 20°C (69°F), with an average of 11°C (52°F). This month experiences considerable rainfall, with about 95 mm (3.7 in) of precipitation over nine days and an average humidity of 79%. In contrast, September is significantly warmer, featuring temperatures ranging from a minimum of 11°C (51°F) to a scorching maximum of 35°C (96°F), with an average of 17°C (63°F). Unlike December, September boasts very little rainfall, receiving only 2 mm (0.1 in) over the entire month and enjoying an average humidity of 86%. For more details on September weather in Sausalito, you can refer to Sausalito weather in September.
October and December showcase contrasting weather patterns. In October, temperatures range from a minimum of 9°C (48°F) to a maximum of 28°C (84°F), with an average of 16°C (60°F). The month features relatively low precipitation, accumulating just 30 mm (1.2 in) over 2 days, and maintains a humidity level of 80%. In stark contrast, December sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 20°C (69°F), averaging 11°C (52°F). Additionally, December experiences higher precipitation, totaling 95 mm (3.7 in) across 9 days, while humidity remains consistent at 79%. For more insights on October weather specifics, check out Sausalito weather in October.
December weather is generally cooler compared to November, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 20°C (69°F), while November sees slightly warmer conditions with a minimum of 6°C (43°F) and a maximum of 23°C (74°F). Additionally, December experiences nearly double the precipitation of November, totaling 95 mm (3.7 in) over 9 days, compared to November's 50 mm (2.0 in) over just 5 days. Interestingly, both months share the same humidity level of 79%, suggesting a consistent moisture presence in the air. For more details, you can check out Sausalito weather in November.
As December settles in, Sausalito experiences a noticeable chill compared to the milder months that precede it. The average temperature dips, creating a brisk atmosphere ideal for cozying up by the fire or enjoying the festive sights of the city. With increased rainfall and higher humidity, the month brings a refreshing moisture that often contrasts sharply with the drier days of summer. The fleeting sunshine provides glimpses of warmth, making the cooler temperatures feel even more pronounced. Despite the rain, December’s charm lies in its unique blend of crisp air and cozy gatherings. For a deeper dive into what to expect from the climate year-round, explore Sausalito Climate.