Last updated: August 22, 2025
In December, the average temperature in Formosa, Argentina hovers around 27°C (81°F), offering a warm climate that's perfect for exploration. Temperatures can range from a cool 15°C (59°F) to a sizzling 40°C (104°F), so be prepared for a variety of conditions. Expect 82 mm (3.2 in) of precipitation over the course of about 7 days, with an average humidity of 82% that adds to the vibrant atmosphere of the region.
In December in Formosa, the average temperature is 27°C (81°F). The maximum can reach 40°C (104°F), while the minimum can drop to as low as 15°C (59°F). This climate makes Formosa a great destination for travelers seeking warm weather combined with cooler evenings.
In Formosa in December, the precipitation amount is 82 mm (3.2 in) over the course of 7 days.
In Formosa in December humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.
In Formosa in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Formosa.
UV Risk Categories
Weather in Formosa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Formosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 28°C (83°F) | 132 mm (5.2 inches) | 76% | extreme |
| February Weather | 27°C (81°F) | 69 mm (2.7 inches) | 70% | extreme |
| March Weather | 26°C (78°F) | 106 mm (4.2 inches) | 73% | extreme |
| April Weather | 23°C (73°F) | 121 mm (4.8 inches) | 83% | very high |
| May Weather | 19°C (67°F) | 171 mm (6.7 inches) | 85% | high |
| June Weather | 18°C (64°F) | 73 mm (2.9 inches) | 73% | moderate |
| July Weather | 17°C (62°F) | 63 mm (2.5 inches) | 63% | high |
| August Weather | 19°C (66°F) | 50 mm (2.0 inches) | 44% | very high |
| September Weather | 21°C (71°F) | 87 mm (3.4 inches) | 50% | very high |
| October Weather | 24°C (75°F) | 155 mm (6.1 inches) | 53% | extreme |
| November Weather | 25°C (78°F) | 175 mm (6.9 inches) | 66% | extreme |
| December Weather | 27°C (81°F) | 82 mm (3.2 inches) | 82% | extreme |