Last updated: April 22, 2025
Experience the delightful December weather in San Juan Vallarta, Mexico, where temperatures typically soar to a pleasant maximum of 29°C (85°F), coupled with a comfortable average of 18°C (65°F). Enjoy the warmth without the worry of rain, as this month boasts an impressive 0 days of precipitation and only 4 mm (0.1 in) of moisture in total. Amidst the inviting warmth, humidity levels hover at a balmy 88%, providing a truly tropical ambiance for all who visit. Whether you're exploring the stunning coastline or savoring local cuisine, December in San Juan Vallarta promises an unforgettable experience under the sun.
In December, San Juan Vallarta, Mexico experiences a delightful transition into winter, with temperatures reflecting a mild climate that's perfect for holiday escapes. The month's minimum temperature dips to a cool 5°C (41°F), while the average hovers around a pleasant 18°C (65°F), making it warmer than many northern counterparts. Daytime warmth peaks at about 29°C (85°F), offering plenty of sunshine for beachgoers and outdoor enthusiasts alike. This gradual descent in temperatures from the warmer months has settled in, marking December as an inviting time for both locals and visitors to enjoy the vibrant atmosphere of this coastal paradise without the extreme heat of summer.
In December, San Juan Vallarta experiences a significant reduction in rainfall, with only 4 mm (0.1 in) recorded throughout the month, marking a shift towards the dry season. Unlike the preceding months, which saw increasing precipitation leading up to September's peak of 314 mm (12.4 in), December stands out with no recorded rainy days. This dramatic drop not only highlights the seasonal transition but also invites visitors to enjoy the region's sun-soaked coastline and vibrant holiday festivities in dry conditions. As the year concludes, San Juan Vallarta showcases a striking contrast to its earlier, rain-drenched months, ushering in a distinctly pleasant winter climate.
As December arrives in San Juan Vallarta, the humidity remains notably high at 88%, reflecting a trend of elevated moisture levels prevalent throughout the year. Following the peak of 91% in October and slight decrease to 89% in November, December maintains a humid atmosphere, characteristic of this coastal paradise. While humidity levels fluctuated throughout the year, with the lowest point at 68% in July, the latter months often see a significant increase. This pattern suggests that as the rainy season transitions out, the lingering moisture creates a warm and inviting environment, perfect for visitors seeking to enjoy the tropical charm of the region.
In December, San Juan Vallarta experiences a UV Index of 9, categorizing it as very high, with a burn time of just 15 minutes. This mark reflects a gradual dip from the extreme levels observed throughout the summer months when the UV Index consistently peaked at 14. As the year draws to a close, the UV Index resumes a trend similar to January and November, where precautions remain essential. Visitors should remain vigilant about sun exposure during this time, ensuring protection from the sun’s rays while still enjoying the beautiful Mexican beaches. For more detailed insights, check out the full UV Index statistics for San Juan Vallarta UV Index.
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December in San Juan Vallarta, Mexico, offers a delightful blend of sun and warmth, as the month basks in an impressive 298 hours of sunshine. While December's sunlight slightly dips compared to the previous months' highs, it remains a significant source of brightness amidst the winter's chill elsewhere. The days are crisp and inviting, making it a perfect time for outdoor adventures and beach relaxation. As the year closes, visitors can appreciate this gorgeous destination's consistent sunny disposition, setting the stage for a blissful start to the new year. Overall, December encapsulates the joyous spirit of Vallarta, bridging the gap between the vibrant summer months and the tranquil winter season.
When considering the likelihood of sunny weather in December in San Juan Vallarta, you'll find an impressive 86% chance of sunshine, making it one of the sunniest months of the year. This trend reflects a shift from the previous months, where November boasts a respectable 67% chance, paving the way for the clearer skies that characterize December. Following this peak, the chances of sun dramatically decrease in the coming months, with January dipping to 58% and continuing to decline through to June. Thus, if you're looking to bask in the sun and enjoy the beautiful coastal ambiance, December is a prime time to visit this vibrant destination!
In San Juan Vallarta, the daylight duration exhibits a captivating rhythm throughout the year. As the calendar turns from December, where the sun graces the sky for 11 hours, the lengthening days begin, peaking in May and June with an impressive 13 hours of light. Following this zenith, daylight gradually recedes, creating a gentle decline back to 11 hours by October and November. This cyclical pattern highlights the region's tropical charm, with a perfect blend of sun-filled days to enjoy the stunning beaches and vibrant culture, making every season an inviting escape.
In December, San Juan Vallarta experiences a gentle breeze with an average wind speed of 1.9 m/s (4 mph), mirroring the calm winds of the preceding month. As the year comes to a close, you can notice a slight decline in wind speed compared to earlier months, particularly from May to October, where stronger breezes can be felt. The consistent winds in December create a soothing atmosphere, perfect for leisurely beach strolls and vibrant sunsets over the Pacific. As the wind whispers through the palm trees, it sets the stage for a picturesque escape, inviting visitors to bask in the tranquil beauty of this tropical paradise.
The weather in San Juan Vallarta 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 San Juan Vallarta and find detailed weather information for every month.
December and January have similar temperature ranges, with December showcasing a minimum of 5°C (41°F) and an average high of 29°C (85°F), while January sees a slight increase, peaking at 30°C (86°F) with the same minimum. Both months experience low precipitation, with December having no rainy days and January recording just one day of light rain, accumulating about 4 mm (0.2 in). Humidity is slightly lower in January at 84%, compared to December's 88%, making January feel a bit drier overall. For a detailed look at January weather, visit San Juan Vallarta weather in January.
In December, the weather is generally mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), and an average temperature of 18°C (65°F). This month sees very little precipitation, with only about 4 mm (0.1 in) over zero rainy days and a humidity level of 88%.
In contrast, February experiences slightly warmer conditions, with minimum temperatures at 7°C (45°F), an average of 20°C (68°F), and maximums reaching 31°C (88°F). Precipitation increases slightly to 6 mm (0.2 in) across two days, accompanied by lower humidity at 78%. For a more detailed look at the February climate, you can visit San Juan Vallarta weather in February.
In December, the weather in San Juan Vallarta offers a pleasant range of temperatures, with a minimum of 5°C (41°F) and a maximum of 29°C (85°F), while maintaining an average of 18°C (65°F). The month features low precipitation, with just 4 mm (0.1 in) over 0 days, contributing to a high humidity level of 88%. In contrast, March experiences warmer temperatures, with a minimum of 9°C (48°F), an average of 22°C (71°F), and a peak of 34°C (93°F). This month also sees increased rainfall, totaling 13 mm (0.5 in) across 3 days, and slightly lower humidity at 75%. For more insights, check out San Juan Vallarta weather in March.
In December, the weather in San Juan Vallarta is relatively mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (85°F). The average temperature is around 18°C (65°F), and the conditions are typically dry, with only about 4 mm (0.1 in) of precipitation throughout the month and a high humidity level of 88%.
In contrast, April brings warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 34°C (93°F). The average temperature rises to 23°C (74°F), and the month experiences significantly more rainfall, accumulating 36 mm (1.4 in) over approximately 7 rainy days. The humidity also drops to a more comfortable 70%. For more detailed insights, you can check the San Juan Vallarta weather in April.
When comparing the weather in December and May, the contrast is quite striking. December experiences milder temperatures, with a minimum of 5°C and a maximum reaching 29°C, averaging around 18°C. This month is characterized by minimal precipitation, with humidity levels at 88%, creating a comfortable, albeit slightly humid atmosphere. In stark contrast, May sees significantly warmer temperatures, with lows of 14°C and highs soaring to 35°C, averaging 23°C. However, May is also marked by heavy rainfall, receiving 131 mm over 17 days, and humidity dropping to 77%. For a closer look at May's weather specifically, you can check out San Juan Vallarta weather in May.
When comparing the weather in December to that in June, a stark contrast emerges. December enjoys mild temperatures with a minimum of 5°C (41°F), averaging 18°C (65°F) and peaking at 29°C (85°F). The month experiences very little precipitation, with only 4 mm (0.1 in) and no rainy days, coupled with high humidity levels at 88%. In contrast, June is considerably warmer, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 35°C (94°F), and an average of 22°C (71°F). However, June is characterized by a significant increase in precipitation, receiving 277 mm (10.9 in) over 24 rainy days, with humidity at a lower 76%. For more details, check out San Juan Vallarta weather in June.
In December, the weather is generally milder with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 29°C (85°F), averaging around 18°C (65°F). The month is quite dry, boasting only 4 mm (0.1 in) of precipitation over no rainy days and relatively high humidity at 88%. In contrast, July experiences warmer conditions, with temperatures fluctuating between a minimum of 12°C (54°F) and a maximum of 32°C (91°F), and an average of 21°C (71°F). However, July is significantly wetter, receiving approximately 198 mm (7.8 in) of rainfall over 22 days, along with lower humidity at 68%. For more detailed insights on July weather, you can check San Juan Vallarta weather in July.
When comparing the weather in December and August, notable differences emerge. December enjoys milder temperatures, with average highs of 29°C (85°F) and lows around 5°C (41°F), creating a comfortable climate with minimal precipitation of just 4 mm and 0 rainy days. In contrast, August is significantly warmer, featuring average highs of 32°C (90°F) and lows of 13°C (55°F), accompanied by substantial rainfall, totaling 254 mm over approximately 25 days. The humidity is also higher in December at 88%, compared to 70% in August, making for a more tropical feel in the latter month. For more specific details, check this link: San Juan Vallarta weather in August.
In December, the weather in San Juan Vallarta is generally mild, with temperatures ranging from a minimum of 5°C (41°F) to an average of 18°C (65°F) and highs reaching up to 29°C (85°F). The month is quite dry, with only 4 mm (0.1 in) of precipitation and no rainy days, accompanied by relatively high humidity at 88%.
In contrast, September experiences warmer night temperatures, with a minimum of 13°C (56°F) and an average of 21°C (69°F), while still reaching a high of 29°C (85°F). However, it is also much wetter, as September sees significant rainfall totaling 314 mm (12.4 in), spread over 26 days, and slightly lower humidity at 82%. For a detailed look at the weather conditions, check San Juan Vallarta weather in September.
In comparing December and October weather, we observe a notable shift in temperature and precipitation patterns. December features milder conditions with minimum temperatures around 5°C (41°F) and average highs reaching 29°C (85°F), accompanied by low precipitation of just 4 mm over no rainy days and high humidity at 88%. In contrast, October experiences slightly warmer temperatures with a minimum of 9°C (49°F) and an average of 20°C (69°F), but significantly higher precipitation levels of 120 mm spread across 16 days, along with a humidity of 91%. This contrast highlights October's wetter climate compared to the drier December conditions. For a detailed look at the October climate, you can check out San Juan Vallarta weather in October.
In comparing the weather of December and November, we observe a notable shift in temperature and precipitation patterns. December experiences a lower minimum temperature of 5°C (41°F) compared to November's minimum of 9°C (48°F), yet maintains a similar average temperature of 18°C (65°F) versus November's 19°C (67°F). The maximum temperature in both months is quite close, with December reaching 29°C (85°F) and November slightly higher at 30°C (86°F). A significant difference is seen in precipitation; December records just 4 mm (0.1 in) with no rainy days, while November has 36 mm (1.4 in) of rain spread across five days. Humidity levels remain relatively stable, with December at 88% and November slightly higher at 89%. For more detailed weather insights, you can explore San Juan Vallarta weather in November.
As December rolls in, San Juan Vallarta offers a delightful change in weather compared to the sizzling summer months. With pleasantly mild temperatures averaging around 18°C (65°F), it's a refreshing escape from the heat while still allowing for enjoyable outdoor activities. December witnesses virtually no precipitation, creating ideal conditions for exploring the picturesque surroundings. The slight humidity of 88% adds a touch of tropical warmth without the discomfort often felt during wetter months. Overall, December stands out as a perfect time to experience the natural beauty of the region without the bustling crowds, making it a hidden gem for travelers. For more details on the weather patterns throughout the year, visit San Juan Vallarta Climate.