Last updated: April 22, 2025
In San Juan del Río, Mexico, December ushers in pleasant weather characterized by warm temperatures and mild humidity. The maximum temperature can reach 33°C (92°F), while the average hovers around a comfortable 26°C (78°F), and the minimum dips to about 20°C (67°F). Precipitation is relatively low, with just 12 mm (0.5 in) of rain expected over a mere two days, allowing for plenty of sunshine and outdoor activities. The humidity level sits at 70%, giving a refreshing feel to the warm days while making evenings particularly enjoyable. Prepare for a delightful December in this charming city!
In San Juan del Río, Mexico, December welcomes a pleasant change in temperatures as the year winds down. With minimums hovering around 20°C (67°F) and averages settling at a comfortable 26°C (78°F), it’s an ideal time for outdoor activities. The warmth peaks at 33°C (92°F), mirroring the higher temperatures of previous months without reaching the summer extremes. This consistent climate highlights a trend of moderate warmth throughout the late year, making December a delightful month to experience the town's charm while enjoying the mild weather. The transition from November to December suggests a slight cooling, yet the overall conditions remain inviting for both locals and visitors alike.
In December, San Juan del Río experiences a notable decline in precipitation, totaling just 12 mm (0.5 in) over the month, spread across 2 days. This represents a significant drop compared to the preceding months, particularly from the summer peak in August with 357 mm (14.1 in). As the year winds down, the transition from the heavy, frequent rains of mid-year to the drier conditions of winter is evident. November shows a slight uptick in rainfall with 54 mm (2.1 in), but December's paltry totals signal a shift toward a much cooler and drier climate. This seasonal variation highlights the region's unique weather patterns, with December marking the end of a typically vibrant wet season, leading into the dry winter months that define the climate of the area.
As December arrives in San Juan del Río, Mexico, the humidity typically hovers around 70%, marking a slight decline from the peak summer months. This month sees a transition, as the summer’s consistent highs of 79% in August gradually give way to the more moderate levels characteristic of the cooler months. Notably, the humidity in December remains higher than the earlier months of the year, where January recorded 66% and February dipped to 64%. This trend illustrates a gradual increase through spring, peaking in the midsummer, before slowly decreasing as winter approaches, creating a comfortable balance for residents and visitors alike.
In December, the UV Index in San Juan del Rio, Mexico stands at 8, placing it in the very high exposure category with a burn time of just 15 minutes. This reflects a slight decrease from the extreme levels seen in the preceding months, where indices peaked at 14 in May and September. Despite December's somewhat lower UV intensity, caution is still necessary to protect your skin during outdoor activities. As we transition from late autumn to winter, the consistent trend of high UV exposure remains a crucial consideration for residents and visitors alike. For a deeper dive into these UV patterns, check out San Juan del Rio UV Index.
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In San Juan del Rio, Mexico, December is a delightful prelude to the new year, boasting an impressive 296 hours of sunshine. This month showcases a notable resurgence in sunlight, following the slightly dimmer days from September and October. As the year progresses, the hours of sunshine typically rise, peaking in the vibrant spring months of March and April, where the sun graces the city for over 300 hours. December's ample sunlight not only enhances the festive atmosphere but also serves as a reminder of the region's shift from cooler temperatures toward the warmth of spring. With an abundance of clear skies, the month's sunshine is a perfect invitation for outdoor adventures and celebrations amid the stunning backdrop of San Juan del Rio.
In December, San Juan del Río basks in a promising 79% chance of sunny weather, making it one of the most favorable months for sunshine in the area. This delightful opportunity for clear skies follows a trend of fluctuating sunshine potential throughout the year. After experiencing a significant dip in sunny days during the summer months—where chances plummet to as low as 11%—the weather begins to brighten again in November with a 62% likelihood of sunshine. December's sunny disposition, along with a strong trend in increasing sun from the previous month, underscores the area's charm during the winter season, inviting both locals and visitors to revel in its warm, sunlit days.
In San Juan del Río, Mexico, the trend in daylight duration reveals a subtle yet captivating rhythm throughout the year. From January to November, the city enjoys a consistent 11 hours of daylight, creating a steady ambiance for daily activities. As spring fades into summer, daylight extends to 12 hours in March, April, and May, peaking at 13 hours in June and July, which invites longer evenings of exploration and enjoyment. As autumn rolls in, the daylight gradually recedes back to 12 hours in August and September, before settling once again at 11 hours in October, November, and December. This cyclical pattern not only enhances the region’s charm but also highlights the beauty of its changing seasons.
As December unfolds in San Juan del Río, Mexico, the wind whispers a gentle farewell to the year, maintaining an average speed of 1.4 m/s (3 mph). This tranquil breeze is emblematic of a trend observed throughout the year, where the winds tend to soften during the latter months, dipping from a peak of 1.9 m/s (4 mph) in April. December, in particular, embodies this calmness, as it showcases a slight decrease from November's 1.3 m/s, offering a cozy atmosphere perfect for leisurely strolls and enjoying the festive spirit. Overall, the transition from the breezier early months to the more subdued winter winds invites residents and visitors alike to savor the unique charm of San Juan del Río in December.
The weather in San Juan del Rio 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 del Rio and find detailed weather information for every month.
In December, temperatures in San Juan del Rio range from a minimum of 20°C (67°F) to a maximum of 33°C (92°F), with an average of 26°C (78°F). The month experiences moderate humidity at 70% and sees about 12 mm (0.5 in) of rainfall over two days. In contrast, January brings slightly cooler conditions, with a minimum temperature of 19°C (67°F) and a maximum of 34°C (93°F), while maintaining the same average of 26°C (78°F). Precipitation decreases significantly to just 5 mm (0.2 in) over a single day, and humidity drops to 66%. To explore more about January weather specifics in the region, you can visit San Juan del Rio weather in January.
In December, the weather remains warm with temperatures ranging from a minimum of 20°C (67°F) to a maximum of 33°C (92°F), averaging around 26°C (78°F). The month sees a moderate level of humidity at 70% and experiences a slight amount of precipitation, with 12 mm (0.5 in) falling over two days. In contrast, February features slightly cooler temperatures, with a minimum of 18°C (64°F) and the same maximum of 33°C (92°F), but the average remains the same at 26°C (79°F). Precipitation is minimal in February, with only 3 mm (0.1 in) recorded and no rainy days, and humidity lowers to 64%. For more detailed information on February weather, you can visit San Juan del Rio weather in February.
In December, the weather is typically warm with a minimum temperature of 20°C (67°F) and an average of 26°C (78°F), peaking at 33°C (92°F). The month experiences some rainfall, with an average precipitation of 12 mm (0.5 in) over two days and humidity levels around 70%. In contrast, March brings slightly warmer temperatures, with a minimum of 20°C (68°F) and an average of 26°C (80°F), reaching up to 34°C (94°F). Notably, March is drier with only 2 mm (0.1 in) of precipitation and no rainy days, accompanied by lower humidity at 63%. For more detailed insights, check out San Juan del Rio weather in March.
In December, the weather is warm with temperatures ranging from a minimum of 20°C (67°F) to a maximum of 33°C (92°F) and an average of 26°C (78°F). During this month, there is some precipitation, with about 12 mm (0.5 in) falling over 2 days, and humidity levels sit at around 70%. In contrast, April experiences slightly higher temperatures, with a minimum of 20°C (68°F) and a maximum of 35°C (96°F), averaging 27°C (81°F). Notably, April is much drier, with only 1 mm (0.0 in) of precipitation and no rainy days, while humidity remains similar at 69%. For more details, check out San Juan del Rio weather in April.
In December, the weather is generally warm with an average temperature of 26°C (78°F), peaking at 33°C (92°F) and featuring a relatively low precipitation level of 12 mm (0.5 in) over just 2 days. Humidity sits at around 70%, making the heat feel quite pleasant. In contrast, May brings slightly warmer temperatures, with an average of 27°C (82°F) and maximums reaching 35°C (95°F). However, it also experiences increased rainfall, totaling 28 mm (1.1 in) across 5 days and a slight uptick in humidity to 73%. For a detailed look at the weather during May, you can visit San Juan del Rio weather in May.
In December, the weather in San Juan del Rio is warm and relatively dry, with temperatures ranging from a minimum of 20°C (67°F) to a maximum of 33°C (92°F) and an average of 26°C (78°F). The month sees minimal precipitation, with only 12 mm (0.5 in) of rain over just 2 days, and the humidity averages around 70%. In contrast, June presents a more humid and wetter climate, with temperatures starting at a minimum of 22°C (72°F) and peaking at 34°C (93°F), with an average temperature of 27°C (80°F). Rainfall is significantly higher in June, averaging 289 mm (11.4 in) over 21 days, and the humidity rises to about 76%. For more detailed information, check out San Juan del Rio weather in June.
December and July weather exhibit significant differences, reflecting the seasonal transitions. In December, temperatures range from a minimum of 20°C (67°F) to a maximum of 33°C (92°F), with an average of 26°C (78°F). The month experiences relatively low precipitation, with only 12 mm (0.5 in) over about 2 days, and humidity levels at around 70%. In contrast, July witnesses slightly higher temperatures, with a minimum of 23°C (73°F) and a maximum of 34°C (93°F), maintaining an average of 27°C (81°F). However, it is much wetter, with 172 mm (6.8 in) of rain over 20 days, and humidity increases to 78%. This stark contrast highlights July as a more humid and rainy month compared to the drier, warmer December. For more detailed insights, check out San Juan del Rio weather in July.
December and August present contrasting weather patterns. In December, temperatures range from a mild 20°C (67°F) to a warm 33°C (92°F), with an average of 26°C (78°F) and relatively low humidity at 70%. The month experiences minimal rainfall, totaling just 12 mm (0.5 in) over only 2 days. In contrast, August is slightly warmer, with temperatures from 22°C (72°F) to 33°C (91°F) and an average of 27°C (81°F). However, it is significantly wetter, receiving 357 mm (14.1 in) of precipitation across 24 days, accompanied by higher humidity levels at 79%. For more detailed insights, you can check San Juan del Rio weather in August.
The weather in December is characterized by warmer temperatures and significantly less precipitation compared to September. December features a minimum temperature of 20°C (67°F), an average of 26°C (78°F), and a maximum of 33°C (92°F), alongside only 12 mm (0.5 in) of rain over just 2 days. In contrast, September is typically cooler, with a minimum of 22°C (72°F), an average of 27°C (80°F), and a maximum of 32°C (90°F). However, it experiences heavy rainfall, totaling 368 mm (14.5 in) spread across 25 days, coupled with higher humidity levels at 78%. For more details on weather patterns, check out San Juan del Rio weather in September.
When comparing the weather in December and October, we see notable differences in temperature and precipitation. In December, temperatures range from a minimum of 20°C (67°F) to a maximum of 33°C (92°F), with an average of 26°C (78°F) and relatively low precipitation of just 12 mm (0.5 in) over 2 days. In contrast, October experiences slightly higher temperatures, with a minimum of 22°C (71°F) and a maximum of 32°C (90°F), but it is significantly wetter, receiving 280 mm (11.0 in) of rain over 24 days. Moreover, humidity is a bit higher in October at 75%, compared to December's 70%. For more information about October weather conditions, you can visit San Juan del Rio weather in October.
When comparing the weather in December and November, we see some distinct differences. Both months have similar temperature ranges, with minimums around 20°C (67°F), average temperatures of approximately 26°C (78°F), and maximums reaching 33°C (92°F). However, December experiences significantly less precipitation, with only 12 mm (0.5 in) over 2 days, whereas November sees much more rain at 54 mm (2.1 in) over 6 days. This results in slightly lower humidity in December at 70%, compared to November's 72%. For further details on November's weather, check out San Juan del Rio weather in November.
As December rolls into San Juan del Rio, the weather experiences a subtle yet refreshing shift compared to the hotter months. With pleasantly warm temperatures and a gentle decrease in humidity, this time of year offers a more comfortable and enjoyable climate for both locals and visitors. The occasional light rainfall, totaling just a couple of days, adds to the charm without overwhelming the sunshine that still graces the region. For a deeper look into how this month stacks up against the rest of the year, check out San Juan del Rio Climate.