Last updated: August 21, 2025
Experience the vibrant December climate of Monte Hermoso, Argentina, where temperatures delightfully range from a maximum of 34°C (93°F) to a comfortable average of 21°C (70°F), dipping to a refreshing minimum of 9°C (48°F) at night. Visitors can expect occasional rain, with precipitation measuring 58 mm (2.3 in) over about 7 days during the month. The air retains a pleasant humidity level of 58%, making it an ideal time to explore this stunning coastal gem while basking in its diverse and inviting weather.
In Monte Hermoso, Argentina, December marks the arrival of warmer weather, with temperatures reflecting the peak of the summer season. The month kicks off with a comfortable minimum of 9°C (48°F) and an average that rises to a pleasant 21°C (70°F). As the days progress, the mercury can soar to a maximum of 34°C (93°F), creating ideal conditions for beachgoers and sun-seekers. This steady increase in warmth is characteristic of December, where the transition from spring to summer showcases a trend of rising temperatures, making it a vibrant time to experience the beauty of this coastal town. Visitors can expect bright, sunny days perfect for outdoor activities amidst a backdrop of stunning ocean views.
As December rolls into Monte Hermoso, the town experiences a moderate rise in precipitation, with 58 mm (2.3 in) of rain falling over the course of seven days. This increase follows a notably wet November that saw 86 mm (3.4 in), suggesting a trend of heightened rainfall as the summer season approaches. Compared to previous months, December's precipitation is slightly below the peak but remains consistent with the broader pattern of late-year moisture, setting the stage for lush landscapes. Interestingly, while the number of rainy days remains relatively stable, the intensity of rainfall appears to fluctuate, highlighting the dynamic weather patterns characteristic of this coastal region.
In Monte Hermoso, Argentina, December marks the transition to a more refreshing climate, as average humidity dips to 58%. This decline continues a trend observed throughout the latter half of the year, where humidity steadily decreased from October's 68%. Following a peak during the cooler autumn months, with levels reaching 75% in April, the progression into summer brings a welcome respite from the higher moisture levels. Such moderate humidity during December enhances the appeal of outdoor activities, inviting residents and visitors alike to enjoy the vibrant coastal scenery without the discomfort of oppressive dampness. This seasonal shift not only signifies a change in weather but also highlights the dynamic climate patterns characteristic of Monte Hermoso.
In Monte Hermoso, Argentina, December ushers in a notable surge in UV intensity, with a UV Index of 13, classified as extreme. This trend follows a pattern observed from January to November, where the UV Index fluctuates but often peaks during the summer months. The burn time remains a quick 10 minutes, similar to previous extreme months, emphasizing the need for vigilance against sun exposure during this period. As the year transitions from moderate levels in winter to the high and extreme categories of summer, it's crucial to stay informed about the UV Index to protect your skin. For more detailed insights, visit Monte Hermoso UV Index.
UV Risk Categories
In December, Monte Hermoso, Argentina, basks in an impressive 389 hours of sunshine, marking it as one of the sunniest months of the year. This vibrant increase is part of a consistent upward trend in daylight hours as the year winds down, showcasing a remarkable leap from the highs of November at 342 hours. As summer approaches in the Southern Hemisphere, this month not only offers plenty of bright days but also highlights a general pattern where sunshine peaks in late spring and early summer. The contrast to the dimmer winter months like June, which only sees 197 hours, emphasizes the sheer joy and allure of December sun, inviting both locals and tourists to revel in the warmth and outdoor adventures that Monte Hermoso has to offer.
In December, Monte Hermoso enjoys a 56% chance of sunny weather, a figure that reflects a transition towards the warmer summer months. This percentage is slightly below the annual average but aligns closely with the sunnier conditions seen in the preceding months, such as October with 67%, and November at 57%. As the year progresses, the likelihood of sunshine peaks during the early summer months, while the colder winter months of June and May significantly dip to 38% and 44% respectively. Overall, December offers a balance of sun and potential clouds, making it an appealing time for visitors seeking sun-drenched days along the Argentine coast.
In Monte Hermoso, Argentina, December brings a delightful 14 hours of daylight, mirroring the peak light levels found in January and November. This period marks the culmination of the city's long, sun-drenched days that begin in late spring, with daylight gradually diminishing from March to May as autumn approaches. As the seasons transition, daylight stabilizes around 9 hours during the heart of winter from June to July, before making a gradual comeback. By August, daylight begins to extend again, peaking in December as residents and visitors enjoy the vibrant summer sunshine, fostering an atmosphere that's perfect for outdoor activities and coastal relaxation.
As December settles in Monte Hermoso, the winds begin to whisper a gentle lull, averaging 5.1 m/s (11 mph). This slight decrease in wind speed reflects a yearly trend of easing breezes as summer approaches, contrasting with the stronger gusts that define the peak months of January and July, both averaging 5.7 m/s (13 mph). Throughout the year, the winds exhibit a consistent flow, predominantly hovering around the 5 m/s mark, with only a few fluctuations. The months leading up to December, particularly May through November, showcase stable winds around 5.4 to 5.5 m/s (12 mph), providing ideal conditions for beachgoers and enthusiasts alike. As the year winds down, the cool December air paired with softer breezes creates a serene atmosphere, perfect for enjoying the picturesque coastal landscapes of Argentina.
Weather in Monte Hermoso varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Monte Hermoso, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January showcase notable differences in weather patterns. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 34°C (93°F), with an average temperature of 21°C (70°F). There's moderate precipitation of 58 mm (2.3 in) over seven days, accompanied by a humidity level of 58%. In contrast, January sees slightly warmer temperatures, with a minimum of 11°C (52°F) and a maximum soaring to 39°C (103°F), averaging 23°C (73°F). Precipitation decreases to 38 mm (1.5 in) occurring over just five days, while humidity increases marginally to 61%. For more detailed weather insights, you can check Monte Hermoso weather in January.
When comparing the weather in December and February, it's clear that both months offer warm conditions, though February is slightly warmer overall. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 34°C (93°F), with an average of 21°C (70°F). Precipitation is relatively common, averaging about 58 mm (2.3 in) over 7 days, alongside a humidity level of 58%.
In February, the weather becomes just a bit warmer, with minimum temperatures rising to 11°C (52°F) and maximums reaching 35°C (95°F), resulting in a similar average of 22°C (71°F). Rainfall is slightly less at 50 mm (2.0 in) over 5 days, but humidity increases to 67%. For a detailed look at February's weather specifics, visit Monte Hermoso weather in February.
In comparing the weather between December and March, both months experience similar temperature ranges, with December having an average high of 34°C (93°F) and March matching that maximum. However, December tends to be slightly warmer on average, with temperatures reaching an average of 21°C (70°F) compared to March's 20°C (68°F). Precipitation is also noteworthy; December sees a bit more rain, totaling 58 mm (2.3 in) over 7 days, while March has slightly less at 49 mm (1.9 in) across 6 days. Interestingly, March is characterized by higher humidity levels at 70%, compared to 58% in December. For a detailed look at the specific weather conditions in March, you can visit Monte Hermoso weather in March.
When comparing the weather in December and April, noticeable differences emerge in temperature and humidity levels. December boasts warmer conditions, with minimum temperatures around 9°C (48°F) and maximums reaching up to 34°C (93°F), while April experiences cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 31°C (88°F). Additionally, December has an average humidity of 58%, making it feel less muggy compared to April, which has a higher humidity level of 75%. Precipitation is slightly more pronounced in April, with 64 mm (2.5 in) over 6 days, compared to December's 58 mm (2.3 in) over 7 days. For more detailed insights into April weather, visit Monte Hermoso weather in April.
In comparing December and May weather, December boasts warmer temperatures, with a minimum of 9°C (48°F) and a maximum of 34°C (93°F), alongside an average temperature of 21°C (70°F). In contrast, May experiences cooler conditions, with a minimum of 3°C (37°F) and a maximum of 24°C (76°F), leading to a significantly lower average of 13°C (55°F). Although December has slightly higher precipitation at 58 mm (2.3 in) over 7 days, May's precipitation is not far behind at 51 mm (2.0 in) over 6 days, with notably higher humidity in May at 77% compared to December's 58%. For more detailed information on May weather, visit Monte Hermoso weather in May.
The weather in December is significantly warmer than in June, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 34°C (93°F) and an average of 21°C (70°F). In contrast, June experiences much cooler temperatures, with a minimum of 2°C (35°F), a maximum of 20°C (68°F), and an average of only 10°C (50°F). Although both months encounter precipitation, December sees slightly more rainfall with 58 mm (2.3 in) over 7 days compared to June's 48 mm (1.9 in) over 6 days. Additionally, the humidity is higher in June at 74%, whereas December has a more moderate humidity level of 58%. For more details on weather patterns, you can read more about Monte Hermoso weather in June.
When comparing the weather in December and July, it becomes clear that December is significantly warmer, with average temperatures reaching up to 21°C (70°F) and maximums of 34°C (93°F). In contrast, July experiences much cooler temperatures, with average highs of only 9°C (48°F) and maximums around 19°C (66°F). Additionally, December sees more precipitation overall at 58 mm (2.3 in) across 7 days, compared to July's 41 mm (1.6 in) over 6 days. However, July exhibits higher humidity at 71%, compared to December's 58%. For more detailed insights into the July weather, you can visit Monte Hermoso weather in July.
When comparing December and August weather, December boasts significantly warmer temperatures, with a minimum of 9°C (48°F) and an average of 21°C (70°F), reaching a maximum of 34°C (93°F). In contrast, August experiences much cooler conditions, with temperatures ranging from a chilly 0°C (33°F) to a maximum of 23°C (75°F) and an average of only 10°C (50°F). Additionally, December sees more precipitation at 58 mm (2.3 in) over 7 days, compared to the 29 mm (1.1 in) that typically falls in August over just 4 days. Humidity levels are slightly higher in August at 68%, whereas December has a humidity of 58%. For more details on the weather during August, you can visit Monte Hermoso weather in August.
In December, temperatures range from a mild minimum of 9°C (48°F) to a warm maximum of 34°C (93°F), with an average of 21°C (70°F). The month experiences a total precipitation of 58 mm (2.3 in) over approximately 7 days, accompanied by a humidity level of 58%. In contrast, September sees significantly cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 25°C (76°F), averaging just 12°C (54°F). This month records a lower total precipitation of 41 mm (1.6 in) spread across 6 days, but with higher humidity at 71%. For more detailed insights into September weather, you can visit Monte Hermoso weather in September.
When comparing the weather between December and October, December tends to be warmer, with average temperatures ranging from 21°C (70°F) to a high of 34°C (93°F), while October has cooler averages, peaking at 33°C (91°F) and dropping to a low of 4°C (39°F). Although December has slightly higher precipitation at 58 mm (2.3 in) compared to October's 53 mm (2.1 in), it experiences one less rainy day. Additionally, October's humidity is notably higher at 68%, contrasting with December's 58%. For more details, you can check out Monte Hermoso weather in October.
In comparing the weather of December and November, we see that December typically offers slightly warmer temperatures, with an average of 21°C (70°F) as opposed to November's 18°C (64°F). December also boasts a higher maximum temperature of 34°C (93°F), compared to November’s peak of 31°C (88°F). However, November experiences more precipitation, with 86 mm (3.4 in) over 8 days, while December records 58 mm (2.3 in) across 7 days, resulting in a drier end to the year. Moreover, November's humidity level of 65% is higher than December's 58%, indicating a somewhat more humid atmosphere in November. For more detailed insights, you can check Monte Hermoso weather in November.
In December, Monte Hermoso basks in a vibrant transition as summer unfolds, showcasing warmer temperatures compared to other months, with daily highs reaching a balmy 34°C (93°F). This makes it a delightful time for beachgoers and outdoor enthusiasts, although a few rainy days, around seven in total, bring a refreshing contrast to the warmth. The average humidity of 58% adds a touch of tropical flair, making the evenings pleasantly mild. As you plan your visit, be sure to learn more about the nuances of this stunning location by exploring the detailed weather conditions at Monte Hermoso Climate.