Last updated: August 28, 2025
December in Canelones, Uruguay is a month of contrasting temperatures and moderate humidity, providing a unique summer experience. With maximum temperatures soaring up to 36°C (98°F), the average daily warmth settles at a comfortable 22°C (72°F), while nights can cool down to a refreshing 8°C (47°F). Rainfall is modest yet notable, with approximately 65 mm (2.6 in) spread across 7 days, contributing to the region's lush landscape. Humidity levels hover around 65%, adding to the vibrant and lively atmosphere that characterizes the start of summer in this picturesque location.
In Canelones, Uruguay, December offers a delightful transition into summer, with temperatures that highlight the region's warmth. The month starts to heat up, displaying a minimum of 8°C (47°F) and reaching an average of 22°C (72°F), showcasing pleasantly mild weather. As the days progress, the mercury can soar to a maximum of 36°C (98°F), revealing the intense summer heat that characterizes this time of year. Compared to the cooler months preceding it, December’s temperatures reflect a clear upward trend, making it an inviting period for outdoor activities and enjoyment of the vibrant local culture. This warmth sets the stage for the summer festivities that envelop the region, providing an ideal backdrop for both locals and visitors alike.
In Canelones, Uruguay, December brings a slight dip in precipitation, accumulating 65 mm (2.6 in) over approximately 7 days of rainfall. This marks a continuation of a trend seen in the latter months of the year, where rainfall tends to decrease, contrasting sharply with the wetter peak typically experienced in May. Despite this reduction, the rainy season lingers as December complements November's 67 mm, revealing a shift from heavier downpours to more intermittent showers. As summer approaches, residents can expect a blend of sunny days and refreshing rains, making for a dynamic climate that's characteristic of the region.
December in Canelones, Uruguay marks a subtle transition in humidity levels, with an average of 65%. This month reflects a notable dip from the preceding autumn and winter months, which exhibited higher humidity levels peaking at 82% in May and 79% in April. Following the summer surge in February, where humidity reached 69%, December's humidity nonetheless maintains a comfortable and moderate balance, suggesting a trend towards drier conditions as the year wraps up. As the festive season unfolds, Canelones experiences a refreshing change, setting the stage for enjoyable outdoor activities under the sun.
In Canelones, Uruguay, December marks the peak of the UV Index, soaring to a striking 14, placing it firmly in the extreme exposure category with a burn time of just 10 minutes. This high UV intensity mirrors the patterns established in the preceding summer months, where January and February also recorded indices of 14 and 13, respectively. As the year winds down, the UV Index sees a significant dip in the colder months, with values dropping to 4 in June and July, indicating a more moderate risk. However, as the sun returns in spring, the index climbs back up, hitting 11 in October and remaining high through November, before peaking again in December. Such trends highlight the need for sun protection year-round, particularly during these intense summer months. For more information on how to stay safe under the sun, check out the detailed Canelones UV Index.
UV Risk Categories
In Canelones, Uruguay, the month of December shines brilliantly with an impressive 380 hours of sunshine, marking it as one of the sunniest periods of the year. This surge in sunlight reflects a noticeable upward trend as the year draws to a close, following November's already generous 336 hours. As summer sets in, the days become longer and brighter, promising warmth and outdoor fun. The gradual increase from the cooler months, such as April's 258 hours and June's 205 hours, showcases a seasonal transition that invites both locals and visitors to revel in the beauty of sunny days. This sunshine trend suggests the vibrant heart of summer is reaching its peak, illuminating the lush landscapes that define this charming region.
As December approaches in Canelones, Uruguay, residents can look forward to an increasing likelihood of sunny weather, with a noteworthy 67% chance of sunshine this month. This figure marks a delightful peak in the year, following a gradual ascent from the moderate 62% in January and 64% in April and October. While the earlier months of the year such as March and September show relatively lower probabilities, December clearly stands out as a bright spot on the calendar. This trend not only heralds the start of summer but also promises ample opportunities for outdoor enjoyment, making it an ideal time for gatherings and festivities under the sun.
In Canelones, Uruguay, December heralds the return of longer days, with daylight stretching up to an impressive 14 hours. This peak is mirrored at the beginning of the year in January, where daylight hours are also maximized at 14 hours, creating a vibrant and sun-drenched atmosphere. As the seasons progress from February to May, daylight gradually diminishes, reaching a minimum of 10 hours in May. However, this decline is short-lived; from June to August, daylight remains at a low ebb, only slightly rising to 10 hours. As spring approaches, days gradually lengthen again, culminating in the robust daylight of December. The rhythmic ebb and flow of daylight throughout the year not only enhances the landscape but also deeply influences the lifestyle and activities in this beautiful region.
In December, the winds of Canelones, Uruguay, gently swirl at an average speed of 3.6 m/s (8 mph), providing a moderate feel as summer approaches. This month reflects a slight dip in wind intensity compared to the more robust gusts experienced in July and November, where speeds reached up to 4.1 m/s (9 mph). Overall, the trends throughout the year indicate a steady breeze, with the wind speed fluctuating minimally but generally remaining within the 3.5 to 4.1 m/s range. As January beckons, residents can anticipate a wind that will remain relatively calm, nurturing those warm summer days ahead.
Weather in Canelones varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Canelones, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in the region range from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), with an average of 22°C (72°F). The month experiences 65 mm (2.6 in) of precipitation over approximately 7 days, alongside a humidity level of 65%. In contrast, January brings slightly warmer temperatures, with a minimum of 10°C (51°F), average temperatures of 24°C (75°F), and maximum highs reaching 41°C (106°F). Precipitation increases slightly to 69 mm (2.7 in) over 6 days, but humidity decreases to around 63%. For more insights on January's weather, check out Canelones weather in January.
In comparing the weather of December and February, it's notable that both months experience significant warmth, with maximum temperatures reaching around 36°C (97-98°F). December typically sees a minimum temperature of 8°C (47°F) and an average of 22°C (72°F), while February starts slightly warmer with a minimum of 10°C (50°F) and an average of 23°C (73°F). Precipitation levels rise in February, with 90 mm (3.5 in) expected over 9 days compared to December’s 65 mm (2.6 in) over 7 days, and humidity also increases slightly from 65% in December to 69% in February. For more detailed information about February weather patterns, you can check Canelones weather in February.
In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), with an average of 22°C (72°F). The month experiences moderate precipitation, totaling 65 mm (2.6 in) over approximately 7 days, coupled with a humidity level of 65%. In contrast, March sees slightly cooler temperatures, with a minimum of 8°C (47°F), an average of 21°C (70°F), and a maximum of 34°C (93°F). Rainfall increases to 80 mm (3.2 in) over about 9 days, and humidity rises to 73%. For more detailed weather information, visit Canelones weather in March.
In December, the weather tends to be hot with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), while April experiences slightly cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 34°C (93°F). Although both months share an average of 7 days of precipitation, April sees a bit more rain, totaling 76 mm (3.0 in) compared to December's 65 mm (2.6 in). Additionally, humidity levels are higher in April at 79%, compared to December's 65%, contributing to a more muggy atmosphere. For more detailed insights on the weather in April, you can check Canelones weather in April.
When comparing the weather in December and May, notable differences emerge in temperature and precipitation patterns. December boasts a range of temperatures with a minimum of 8°C (47°F) and maximum reaching up to 36°C (98°F), providing an average of 22°C (72°F). In contrast, May features cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 27°C (81°F), resulting in a more modest average of 14°C (58°F). Additionally, while December experiences 65 mm (2.6 in) of rainfall over seven days, May sees a significant increase in precipitation to 112 mm (4.4 in) over the same number of days, contributing to higher humidity levels of 82% compared to December's 65%. For more detailed information on May weather, check out Canelones weather in May.
In December, the weather is much warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), and an average of 22°C (72°F). This month experiences less precipitation, with about 65 mm (2.6 in) falling over approximately 7 days and a humidity level of 65%. In contrast, June brings cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 26°C (80°F), averaging just 12°C (54°F). Additionally, June tends to be wetter, with 95 mm (3.8 in) of precipitation over 8 days and a higher humidity of 80%. For more detailed information, you can check this link: Canelones weather in June.
December and July present stark contrasts in weather conditions. December boasts a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), while July experiences cooler temperatures, hitting a minimum of -1°C (30°F) and an average high of only 26°C (79°F). Additionally, December tends to be drier with 65 mm (2.6 in) of precipitation over 7 days, compared to July's wetter conditions, which see 98 mm (3.9 in) over 9 days. The humidity is also higher in July at 72%, compared to 65% in December. For a deeper look into July's weather patterns, check out Canelones weather in July.
December and August present contrasting weather conditions. In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), with an average of 22°C (72°F). The month sees about 65 mm (2.6 in) of precipitation spread over 7 days, accompanied by a humidity level of 65%. In stark contrast, August experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 26°C (80°F), averaging 12°C (54°F). Precipitation is slightly higher at 87 mm (3.4 in) over the same number of rainy days, but humidity rises to 72%. For more details on the weather in August, check out Canelones weather in August.
December weather is generally warmer than September, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), compared to September’s cooler range of 2°C (36°F) to 30°C (85°F). While December has a relatively lower precipitation level of 65 mm (2.6 in) across 7 days, September experiences slightly higher rainfall at 82 mm (3.2 in) over the same number of days. Additionally, humidity levels are higher in September at 76%, compared to December’s 65%. For more detailed insights on seasonal weather patterns, visit Canelones weather in September.
When comparing the weather in December and October, December tends to be warmer overall, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (98°F), while October has a cooler range with temperatures between 3°C (38°F) and 34°C (93°F). October experiences more precipitation, with 90 mm (3.5 in) over 10 days, compared to December's 65 mm (2.6 in) over 7 days. Additionally, humidity levels are slightly higher in October at 71%, compared to December's 65%. For more details, you can check out Canelones weather in October.
In comparing the weather of December and November, December generally offers warmer temperatures, with a minimum of 8°C (47°F) and an average of 22°C (72°F), compared to November's minimum of 5°C (42°F) and average of 20°C (67°F). While both months experience similar levels of precipitation, with December recording 65 mm (2.6 in) and November slightly higher at 67 mm (2.7 in), the humidity remains relatively consistent, with December at 65% and November at 68%. Those looking for a clearer perspective on November's weather can explore more details via this link: Canelones weather in November. Overall, December tends to be warmer and slightly less humid than November.
As December arrives in Canelones, the weather transforms into a vibrant mix of warmth and humidity, creating a stark contrast to the cooler months that precede it. With maximum temperatures soaring and an average that hints at summer's approach, residents spend more days basking in the sun. However, the month is also marked by occasional rainfall, as about seven days will see precipitation, contributing to the region's lush landscape. This blend of warmth and moisture makes December a dynamic time, perfect for outdoor activities and enjoying the festive spirit. For those interested in a deeper understanding of the local climate, explore further at Canelones Climate.