Last updated: August 21, 2025
December in Bahia Blanca, Argentina, offers a warm climate characterized by a maximum temperature of 36°C (97°F) and an average of 22°C (71°F), making it a perfect time for outdoor activities. Nighttime brings cooler temperatures, dipping to a minimum of 8°C (47°F). Throughout the month, residents and visitors can expect 54 mm (2.1 in) of precipitation over 6 days, complemented by a humidity level of 58% that adds to the summer ambiance. This combination of warmth and occasional rainfall creates a dynamic atmosphere, inviting exploration and enjoyment of Bahia Blanca's vibrant landscapes.
In December, Bahia Blanca experiences a delightful transition towards the peak of summer. With minimum temperatures hovering around 8°C (47°F) and rising to averages of 22°C (71°F), the weather invites locals and visitors alike to embrace the warmth. The days can reach a balmy maximum of 36°C (97°F), reflecting a clear upward trend from the cooler months earlier in the year. This gradual increase not only highlights the region’s comfortable climate but also sets the stage for outdoor activities and festive gatherings, making December an exhilarating month in Bahia Blanca. As the days get longer and the sun shines brighter, the vibrant energy of summer truly begins to unfold.
December in Bahia Blanca ushers in a transition from the drier months of winter and spring to a wetter summer climate. With 54 mm (2.1 in) of precipitation over 6 days, this month reflects a notable increase compared to the dry spell seen in the preceding months, particularly August and July, where rainfall was minimal. This uptick is part of a larger trend that sees November as the wettest month, receiving 76 mm (3.0 in), likely setting the stage for December's increased precipitation, making the region feel vibrant and lush as it approaches the height of summer. The rhythm of rainfall continues to build through the season, inviting a refreshing change to the atmospheric landscape as the year closes.
In Bahia Blanca, Argentina, the humidity throughout the year exhibits notable trends that shape the local climate. December stands out with a relatively low humidity level of 58%, marking a decline from the higher levels reached in the preceding months. As the year progresses, humidity gradually increases from 61% in January to a peak of 77% in May before starting to taper off. This pattern highlights a transition from cooler, drier conditions in late spring to the warmer, more humid days of autumn. Overall, while December's humidity dips significantly, it reflects the city's seasonal rhythm, reminding residents that refreshing, less humid air can often accompany the summer heat.
In Bahia Blanca, Argentina, December ushers in a notably high UV Index of 13, placing it in the extreme exposure category with a swift burn time of just 10 minutes. This trend of high UV levels continues from November's index of 12, emphasizing the need for vigilant sun protection as summer approaches. Reflecting on earlier months, the UV intensity gradually decreases from its peak in January (14) and February (12), tapering to lower levels in the middle of the year. From March onwards, the UV Index maintains a pattern of fluctuation, with a notable dip in April (6) before rising again in December. As conditions heat up, staying informed and protected is crucial—learn more at Bahia Blanca UV Index.
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In Bahía Blanca, Argentina, December shines brightly as the city basks in an impressive 393 hours of sunshine, making it the sunniest month of the year. This surge in sunlight marks a significant contrast to the cooler winter months, where sunlight hours dip as low as 204 in June. After a steady rise from November’s 343 hours, the December glow heralds the onset of summer, indicating the community's transition into warmer days filled with outdoor activities and vibrant gatherings. With sunlight hours gradually increasing from the spring months of October and November, each passing day in December becomes an invitation to embrace the warmth and joy that summer in Bahia Blanca brings.
In Bahia Blanca, December ushers in the summer season with a 58% chance of sunny weather, a trend that reflects the gradual transition from the milder autumn months to warmer summer days. As we analyze the chances of sun throughout the year, it's evident that December sits comfortably in the middle of the spectrum, showing an increase from the cooler months like May and June, which dip to lows of 46% and 42% respectively. Notably, while December’s sunlight likelihood is slightly lower than the peak months of January and February, it still offers a balanced opportunity for enjoying the outdoors. This makes December a delightful time for both locals and visitors to experience Bahia Blanca’s charm under the sun.
In Bahía Blanca, Argentina, the rhythm of daylight ebbs and flows throughout the year, with December marking a peak in brightness as residents enjoy a generous 14 hours of daylight. Following the sunniest months of November and January, which both boast similar durations, December ushers in the southern hemisphere's summer, allowing locals to bask in sunlight for extended periods. As the year progresses into March and April, daylight gradually wanes, dropping to 12 and 11 hours respectively, before settling into the shorter days of winter. However, the cycle reverses with the arrival of spring, with daylight increasing again in September and October. This consistent fluctuation highlights the vibrant seasonal changes that define life in Bahía Blanca, inviting both adventure and relaxation under its expansive skies.
In December, Bahia Blanca experiences a gentle breeze with an average wind speed of 4.9 m/s (11 mph), mirroring the trend observed in the previous months of November and May. This slight drop marks a shift from the stronger gusts seen in the height of winter, with wind speeds gradually softening after peaking at 5.5 m/s (12 mph) in both July and August. As summer approaches, the transitional winds carry a hint of warmth, creating a serene atmosphere perfect for enjoying the coastal city. Overall, December's breezes are emblematic of Bahia Blanca's milder summer climate, inviting both locals and visitors to partake in the beautiful outdoor settings it offers.
Weather in Bahia Blanca varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bahia Blanca, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather in Bahia Blanca typically features a minimum temperature of 8°C (47°F) and an average of 22°C (71°F), with a maximum reaching up to 36°C (97°F). The month experiences about 54 mm (2.1 in) of precipitation over approximately six days, with humidity averaging 58%. In contrast, January brings slightly warmer temperatures, with a minimum of 11°C (52°F), an average of 24°C (75°F), and a peak of 39°C (103°F). This month sees reduced precipitation of about 31 mm (1.2 in) over four days and slightly higher humidity at 61%. For more detailed insights, you can check the Bahia Blanca weather in January.
In comparing the weather of December and February, both months display similar average temperatures, with December ranging from a minimum of 8°C (47°F) to a maximum of 36°C (97°F), while February sees slightly higher minimums at 10°C (49°F) and a peak of 35°C (95°F). Precipitation levels are quite comparable, with December receiving 54 mm (2.1 in) over 6 days, and February slightly higher at 55 mm (2.2 in) over just 5 days. Notably, February tends to be more humid, with a humidity level of 67% compared to December's 58%. For those interested in more detailed information, please check Bahia Blanca weather in February.
In December, the weather tends to be warmer with an average temperature of 22°C (71°F), peaking at a high of 36°C (97°F). This month also experiences relatively higher humidity at 58% and 54 mm (2.1 in) of precipitation over 6 days. In contrast, March sees slightly cooler average temperatures at 20°C (68°F) with a maximum of 34°C (93°F). While precipitation is somewhat lower at 44 mm (1.7 in) over the same number of days, humidity rises to 70%. For a more detailed look at the weather in March, you can visit Bahia Blanca weather in March.
In December, the weather in Bahia Blanca is generally warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (97°F). Despite some heat, the precipitation is lower at 54 mm (2.1 in) over six days, and humidity levels are moderate at 58%. In contrast, April brings cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (87°F), while average temperatures sit at 17°C (63°F). The month sees slightly more rainfall at 61 mm (2.4 in) over the same number of days, and higher humidity levels at 75%. For a detailed insight into April weather, check out Bahia Blanca weather in April.
December and May present quite contrasting weather experiences. In December, temperatures can range from a minimum of 8°C (47°F) to a scorching maximum of 36°C (97°F), with an average of 22°C (71°F). The month also sees about 54 mm (2.1 in) of precipitation over six days, and humidity levels hover around 58%. In stark contrast, May offers cooler conditions with temperatures dipping to a minimum of 1°C (34°F) and reaching a maximum of 24°C (76°F), averaging around 12°C (54°F). This month experiences slightly less precipitation at 44 mm (1.7 in) across five days, but the humidity is notably higher at 77%. For a deeper look into the conditions during this month, you can check Bahia Blanca weather in May.
When comparing the weather in December and June, it's clear that December offers significantly warmer temperatures, with minimums of 8°C (47°F) and maximums reaching up to 36°C (97°F), compared to June's cooler range of 1°C (33°F) to 19°C (67°F). Precipitation levels are somewhat similar, with December receiving 54 mm (2.1 in) over 6 days, while June sees slightly less at 43 mm (1.7 in) over 5 days. Furthermore, June experiences higher humidity at 74%, compared to December's 58%. For more details on weather trends, you can check out Bahia Blanca weather in June.
December and July present stark contrasts in weather. December boasts a minimum temperature of 8°C (47°F) and can reach highs of up to 36°C (97°F), making it significantly warmer with an average of 22°C (71°F). Rain is relatively common, occurring on about 6 days and bringing 54 mm (2.1 in) of precipitation, with humidity levels at 58%. In contrast, July experiences much cooler temperatures, starting at a minimum of -1°C (30°F) and averaging just 8°C (47°F), peaking at 19°C (66°F). Precipitation is slightly lower at 43 mm (1.7 in) over just 4 days, accompanied by higher humidity at 71%. For more detailed information about July weather, visit Bahia Blanca weather in July.
In December, Bahia Blanca experiences significantly warmer temperatures compared to August. The minimum in December is a mild 8°C (47°F), with average highs reaching up to a scorching 36°C (97°F), while August sees much cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 23°C (74°F). Precipitation is also higher in December, with 54 mm (2.1 in) over six days, compared to just 22 mm (0.9 in) over three days in August. Moreover, humidity levels are slightly lower in December at 58%, compared to 68% in August, contributing to the more comfortable feel of the warmer month. For more details about weather trends in August, you can visit Bahia Blanca weather in August.
In December, the weather is significantly warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 36°C (97°F) and an average of 22°C (71°F). This contrasts sharply with September, where temperatures are much cooler, starting at a minimum of 1°C (34°F) and reaching a maximum of 26°C (79°F), with an average of only 12°C (55°F). While December experiences slightly higher precipitation at 54 mm (2.1 in) over approximately 6 days, September has a bit less rain at 42 mm (1.6 in) spread over 5 days, though the humidity is noticeably higher in September at 71% compared to 58% in December. For more detailed insights, you can visit Bahia Blanca weather in September.
In December, the weather is noticeably warmer than in October, with minimum temperatures around 8°C (47°F) compared to October's 4°C (39°F). The average temperature in December reaches 22°C (71°F), which is significantly higher than October's average of 15°C (60°F). December also features a higher maximum temperature of 36°C (97°F), while in October it peaks at 32°C (91°F). Both months experience similar precipitation levels, with December registering 54 mm (2.1 in) and October slightly less at 49 mm (1.9 in), each with rainfall occurring on about six days. Humidity is higher in October at 68%, compared to December's 58%. For more detailed information on October weather, check Bahia Blanca weather in October.
December generally brings warmer temperatures compared to November, with minimums around 8°C (47°F) and maximums reaching up to 36°C (97°F), compared to November's range of 6°C (43°F) to 31°C (89°F). The average temperature in December is notably higher at 22°C (71°F) versus November's 19°C (66°F). While December sees slightly less precipitation at 54 mm (2.1 in) over 6 days, November records higher rainfall at 76 mm (3.0 in) across 7 days, contributing to a higher humidity level of 65% in November as opposed to 58% in December. For a more detailed look at the weather during November, check out Bahia Blanca weather in November.
In December, Bahia Blanca experiences a delightful departure from the cooler months, with warmer temperatures that can soar up to 36°C (97°F), while still enjoying a pleasant average of 22°C (71°F). Although the air feels humid, with 58% humidity levels, the relatively low precipitation of 54 mm over just six days keeps the surroundings inviting and perfect for outdoor activities. This seasonal shift brings a vibrant atmosphere, making it a fantastic time for both locals and visitors to bask in the sun and indulge in the city's charm. Explore more about the unique weather characteristics throughout the year at Bahia Blanca Climate.