Last updated: April 22, 2025
In January, San Juan Vallarta, Mexico, experiences mild and pleasant weather, making it an ideal destination for travelers seeking a sunny escape. Daytime temperatures reach a comfortable maximum of 30°C (86°F), while the average temperature hovers around 18°C (64°F). Evenings can be cooler, dipping to a minimum of 5°C (41°F). With only 4 mm (0.2 in) of rain over just 1 day, visitors can expect predominantly dry conditions, complemented by a notably high humidity level of 84%. This blend of warmth and low precipitation ensures that January is a perfect time to enjoy outdoor adventures and soak in the vibrant local culture.
In January, San Juan Vallarta enjoys a delightful range of temperatures that set the stage for a perfect getaway. The month begins with cool mornings, where temperatures dip to a crisp 5°C (41°F), but quickly warms to an inviting average of 18°C (64°F) during the day, reaching highs of 30°C (86°F). As the month progresses into February, a gradual increase in temperatures can be observed, with nighttime lows rising slightly to 7°C (45°F) and daytime averages climbing to 20°C (68°F). This upward trend continues as spring approaches, culminating in a warm and pleasant climate that beckons visitors to bask in the sun-drenched beauty of the region. The gradual warming from January through March not only enhances the allure of outdoor activities but also creates a vibrant atmosphere, making it a prime time for exploring everything San Juan Vallarta has to offer.
In January, San Juan Vallarta enjoys a relatively dry start to the year, with only 4 mm (0.2 in) of precipitation recorded on just one day. This minimal rainfall sets the tone for the initial weeks of the year, allowing both locals and visitors to bask in the stunning coastal weather. As February approaches, a slight uptick is observed with 6 mm of rain over two days, hinting at the shift from the dry season toward the wetter months ahead. The transition becomes more pronounced in the following months, particularly from April onwards, when precipitation dramatically increases, peaking in September with an impressive 314 mm (12.4 in) across 26 days. This notable pattern highlights the region’s climatic rhythm, showcasing January as a serene prelude to the lush tropical abundance that arrives later in the year.
In January, San Juan Vallarta experiences a notable humidity level of 84%, setting the stage for a lush, tropical atmosphere that enhances its vibrant natural beauty. As the month transitions into February, humidity begins to decrease slightly to 78%, ushering in a more comfortable climate that remains consistent through March and April, which see levels of 75% and 70%, respectively. However, as spring gives way to summer in May and June, humidity returns to higher levels at 77% and 76%. The months of July and August bring a dip to 68% and 70%, making it one of the driest periods of the year, before soaring back up in September to 82%. As the year draws to a close, the humidity peaks again in October at an impressive 91%, followed by November and December, where levels remain at 89% and 88%. This cyclical pattern highlights the region's tropical climate, where humidity rises and falls, creating a dynamic environment that captivates both locals and visitors alike.
In January, San Juan Vallarta experiences a UV Index of 10, indicating a very high exposure category, where unprotected skin can burn in just 15 minutes. This is the perfect time to enjoy the sun while being mindful of protection, as the UV levels will escalate in the following months. From February to October, the index peaks at 12 to 14, landing in the extreme category, with a consistent burn time of only 10 minutes. Thankfully, the levels dip back to 10 in November and 9 in December, providing a more forgiving environment for sun-seekers. As you plan your activities in this beautiful destination, be sure to keep these trends in mind for safe sun exposure. For more details, visit San Juan Vallarta UV Index.
UV Risk Categories
January in San Juan Vallarta shines with an inviting 244 hours of sunshine, setting the stage for a delightful start to the year. As the months progress, sunshine increases steadily, peaking in May with an impressive 332 hours, making it a prime time for sun-seekers. Following May, the sunshine remains abundant, with July and August also boasting over 320 hours, ensuring that summer visitors are welcomed with bright, sunny days. The trend continues through the fall months with October and November still enjoying a generous amount of sunshine, before tapering down to December. Overall, San Juan Vallarta showcases a vibrant sunlit calendar, perfect for travelers looking to bask in warmth and relaxation.
In San Juan Vallarta, January offers a moderate 58% chance of sunny weather, making it an appealing month for sun-seekers compared to the gloomier months ahead. As the year progresses, the likelihood of sunshine skyrockets in February to an impressive 90%, marking the peak of sunny days. Following this, March and April maintain a strong showing with 77% and 72%, respectively, before the sunny days start to dwindle in the warmer months of May through July, where the chances drop significantly. Interestingly, the latter half of the year presents a mixed bag, with sun chances fluctuating but generally benefiting from a resurgence in November and December, both surpassing 60%. Overall, January strikes a balance—offering enough sunny days to attract visitors while hinting at even brighter days just around the corner.
In January, San Juan Vallarta enjoys a delightful 11 hours of daylight, setting the stage for a vibrant start to the year. As the month transitions into February, the daylight remains consistent, offering plenty of sunshine for outdoor activities. Moving into March and April, daylight increases to 12 hours, welcoming more time for exploration and relaxation under the warm sun. The trend peaks in May through July, with an inviting 13 hours of daylight, making it the perfect time for beachgoers and adventure seekers alike. As summer fades, daylight gradually decreases to 12 hours in August and September, before settling back into 11 hours from October through December. This rhythmic cycle not only highlights the beauty of San Juan Vallarta's climate but also suggests an ideal balance between vibrant summer days and the cozy comfort of winter's embrace.
In January, San Juan Vallarta greets visitors with a gentle breeze, showcasing an average wind speed of 2.0 m/s (4 mph). This refreshing maritime wind provides a pleasant escape from the warm tropical sun as temperatures begin to rise. As the month unfolds into February, the winds pick up slightly to 2.2 m/s (5 mph), setting the tone for a mild and invigorating atmosphere. Interestingly, the winds remain consistent through March and April, holding steady at 2.0 and 2.2 m/s respectively, which could entice adventurers to explore the enchanting coastlines and vibrant landscapes. However, as the season transitions into late spring and early summer, particularly in May and June, the winds begin to taper off, dropping to 1.8 and 1.5 m/s (3 mph). This trend of lighter winds continues into the summer months, creating an idyllic setting for leisurely beach days and sunset strolls. Overall, the winds of January in San Juan Vallarta signify the onset of a beautiful year ahead, inviting both relaxation and adventure.
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 January'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.
In January, the weather in San Juan Vallarta features a minimum temperature of 5°C (41°F) and an average high of 30°C (86°F), with low precipitation of just 4 mm (0.2 in) over a single day and high humidity at 84%. In contrast, February sees a slight increase in temperatures, with a minimum of 7°C (45°F) and an average of 20°C (68°F), and the maximum rises to 31°C (88°F). The precipitation in February is also slightly higher at 6 mm (0.2 in) over two days, while humidity decreases to 78%. For more details on February weather in the region, visit San Juan Vallarta weather in February.
In January, the weather in San Juan Vallarta features a pleasant range of temperatures, with a minimum of 5°C (41°F) and an average high of 30°C (86°F). The month sees minimal precipitation, totaling just 4 mm (0.2 in) over one day, accompanied by relatively high humidity at 84%. In contrast, March experiences slightly warmer temperatures, with a minimum of 9°C (48°F) and an average high reaching 34°C (93°F). Additionally, March has increased precipitation, totaling 13 mm (0.5 in) spread over three days, while humidity drops to a comfortable 75%. For a closer look at March weather specifics, check out San Juan Vallarta weather in March.
In comparing the weather of January and April, it is evident that April brings warmer temperatures, with minimums of 10°C (50°F) compared to January's 5°C (41°F). The average temperature in April rises significantly to 23°C (74°F), reaching a maximum of 34°C (93°F), while January features an average of 18°C (64°F) with a maximum of 30°C (86°F). Additionally, April experiences much higher precipitation levels at 36 mm (1.4 in) over 7 days, whereas January has only 4 mm (0.2 in) over just 1 day. Humidity also decreases from 84% in January to 70% in April, reflecting the transition towards a drier and warmer season. For more specific details, you can check San Juan Vallarta weather in April.
In January, the weather in San Juan Vallarta features mild temperatures with a minimum of 5°C (41°F) and an average high of 30°C (86°F), along with low precipitation of just 4 mm (0.2 in) over 1 day. The humidity is relatively high at 84%, contributing to a comfortable but somewhat sticky atmosphere. In contrast, May brings warmer conditions, with minimum temperatures rising to 14°C (57°F) and an average high of 35°C (95°F). However, this month experiences significantly more rainfall, totaling 131 mm (5.2 in) across 17 days, and the humidity decreases slightly to 77%. For more details on the weather in May, visit San Juan Vallarta weather in May.
In January, San Juan Vallarta experiences relatively mild weather, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F) and an average of 18°C (64°F). The month is characterized by low precipitation, totaling only 4 mm (0.2 in) over just one rainy day, accompanied by high humidity levels at 84%. In contrast, June sees a significant increase in both temperature and precipitation. The minimum temperature rises to 14°C (57°F), with averages reaching 22°C (71°F) and maximums peaking at 35°C (94°F). Rainfall during this month is much more substantial, with 277 mm (10.9 in) spread across 24 days, and humidity remains high at 76%. For more detailed information on weather during this month, you can visit San Juan Vallarta weather in June.
In January, the weather enjoys a mild warmth, with temperatures ranging from a minimum of 5°C (41°F) to a pleasant average of 18°C (64°F) and a maximum of 30°C (86°F). The month experiences minimal precipitation, totaling just 4 mm (0.2 in) over one day, but the humidity is notably high at 84%.
In contrast, July presents a much hotter and wetter climate, with temperatures starting at a minimum of 12°C (54°F), an average of 21°C (71°F), and peaking at 32°C (91°F). This month sees significant rainfall, with 198 mm (7.8 in) over 22 days, and humidity levels drop to 68%, offering a different atmosphere altogether.
For more details on the weather specifics, you can check San Juan Vallarta weather in July.
In January, the weather is relatively mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F) and an average of 18°C (64°F). The month experiences minimal precipitation, averaging just 4 mm (0.2 in) over only one day, contributing to a high humidity of 84%. In contrast, August brings warmer temperatures, with a minimum of 13°C (55°F), an average of 21°C (71°F), and a peak of 32°C (90°F). However, this month is significantly wetter, receiving 254 mm (10.0 in) of rainfall spread over 25 days, and a lower humidity level of 70%. For a detailed look at the climate specifics, you can check San Juan Vallarta weather in August.
In January, the weather is characterized by milder temperatures, with a minimum of 5°C (41°F) and an average of 18°C (64°F), peaking at a comfortable 30°C (86°F). The month experiences very little rainfall, with only 4 mm (0.2 in) of precipitation over just one day, and humidity levels are relatively high at 84%. In contrast, September sees warmer nights with a minimum temperature of 13°C (56°F) and an average of 21°C (69°F), but the month is also marked by significantly increased rainfall, totaling 314 mm (12.4 in) over 26 days. The humidity is slightly lower at 82%, but the rainy season can make the weather feel quite different. For a detailed look at September's weather specifics, visit San Juan Vallarta weather in September.
When comparing the weather of January and October, we see notable differences. January features a mild climate with average temperatures ranging from 5°C (41°F) at night to a warm 30°C (86°F) during the day, alongside minimal rainfall of just 4 mm (0.2 in) over a single day. In contrast, October presents slightly cooler nights with a minimum temperature of 9°C (49°F) and an average high that remains the same as in January. However, October is significantly wetter, recording 120 mm (4.7 in) of precipitation across 16 days, contributing to a higher humidity level of 91%. For more detailed insights into the weather during this month, you can check San Juan Vallarta weather in October.
January and November in San Juan Vallarta exhibit distinct weather patterns despite having similar maximum temperatures of 30°C (86°F). In January, temperatures range from a minimum of 5°C (41°F) to an average of 18°C (64°F), accompanied by low precipitation of just 4 mm over one day. The humidity during this month is fairly high at 84%. Conversely, November sees slightly milder temperatures with a minimum of 9°C (48°F) and an average of 19°C (67°F). It also experiences significantly more rainfall, totaling 36 mm across five days, and a higher humidity level of 89%. For more detailed information, check out San Juan Vallarta weather in November.
In January, the weather in San Juan Vallarta remains relatively consistent with December, featuring a minimum temperature of 5°C (41°F) and an average temperature of 18°C (64°F). The maximum temperature in January reaches 30°C (86°F), slightly higher than December's peak of 29°C (85°F). Both months experience low precipitation, with January recording 4 mm (0.2 in) over just one day, whereas December has the same amount with no rainy days. Humidity levels are also comparable, with January at 84% and December slightly higher at 88%. For a more detailed look at December weather patterns, check out San Juan Vallarta weather in December.
January in San Juan Vallarta offers a delightful reprieve from the summer heat, boasting pleasant temperatures that hover around the average of 18°C (64°F). With a maximum of 30°C (86°F) during the day, visitors can enjoy ample sunshine while enjoying lower humidity levels compared to the sweltering summer months. The precipitation is minimal, with only about one day of rain, making it an ideal time for outdoor activities. This month’s weather stands in stark contrast to the hotter and wetter months that follow, ensuring that January is perfect for tourists looking to escape the chill of winter elsewhere. For more insights into the local climate, check out San Juan Vallarta Climate.