Last updated: August 22, 2025
In San Salvador, Argentina, the average temperature in January hovers around 25°C (78°F), with minimums dipping to 12°C (54°F) and maximums soaring up to 41°C (106°F). During this month, expect about 126 mm (4.9 in) of precipitation over the course of 8 days, with an average humidity level of 59%. Whether you're planning activities in the sun or preparing for a rainy day, it’s a month of diverse weather in San Salvador!
In January in San Salvador, the average temperature is 25°C (78°F). Maximum temperatures can reach 41°C (106°F), while minimums can plunge to as low as 12°C (54°F). This makes San Salvador an ideal destination for travelers looking to enjoy warm weather with a pleasant range of temperature variations.
In San Salvador in January, the total precipitation amount is 126 mm (4.9 in), occurring over the course of 8 days.
In San Salvador in January, humidity is 59%. With an average temperature of 25°C (78°F), this humidity feels like a warm embrace, creating a slightly sticky atmosphere that can make outdoor explorations feel both refreshing and somewhat uncomfortable as you wander through the sights.
In San Salvador in January, 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 San Salvador.
UV Risk Categories
Weather in San Salvador varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Salvador, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (78°F) | 126 mm (4.9 inches) | 59% | extreme |
| February Weather | 24°C (75°F) | 92 mm (3.6 inches) | 56% | extreme |
| March Weather | 22°C (72°F) | 84 mm (3.3 inches) | 69% | extreme |
| April Weather | 20°C (67°F) | 104 mm (4.1 inches) | 78% | very high |
| May Weather | 15°C (60°F) | 139 mm (5.5 inches) | 82% | moderate |
| June Weather | 13°C (55°F) | 98 mm (3.9 inches) | 81% | moderate |
| July Weather | 12°C (54°F) | 66 mm (2.6 inches) | 66% | moderate |
| August Weather | 14°C (57°F) | 92 mm (3.6 inches) | 54% | high |
| September Weather | 16°C (61°F) | 101 mm (4.0 inches) | 60% | very high |
| October Weather | 19°C (66°F) | 104 mm (4.1 inches) | 59% | extreme |
| November Weather | 22°C (72°F) | 84 mm (3.3 inches) | 57% | extreme |
| December Weather | 24°C (76°F) | 100 mm (3.9 inches) | 68% | extreme |