Last updated: August 21, 2025
In March, La Union, Chile experiences a dynamic climate characterized by significant temperature fluctuations, with maximums reaching 30°C (85°F) and minimums dropping to 2°C (36°F). The average temperature hovers around a comfortable 14°C (57°F), making it suitable for various outdoor activities. However, the month also brings notable precipitation, totaling 75 mm (2.9 in) across 7 days, resulting in a humidity level of 79% that adds to the richness of the region's natural landscape. This blend of warmth and moisture creates an inviting yet unpredictable weather pattern, making March a fascinating time to explore the vibrant beauty of La Union.
In March, La Union, Chile, welcomes a gradual transition into autumn, with temperatures experiencing a noticeable shift from the warmth of summer. The month boasts a minimum temperature of around 2°C (36°F), offering a crisp start to the day, while the average hovers around 14°C (57°F), ideal for outdoor activities. Afternoon highs reach up to 30°C (85°F), allowing for lingering warmth as the sun sets. Compared to the soaring temperatures of February, which hit a scorching 37°C (98°F), March presents a more moderate climate that invites residents and visitors alike to enjoy the beauty of the changing season, all while preparing for the cooler months ahead.
In March, La Union, Chile, experiences a notable uptick in precipitation, with 75 mm (2.9 in) of rain falling over an average of 7 days. This marks a significant increase compared to the preceding months, indicating the onset of a wetter season as the year progresses. As temperatures begin to cool, the region transitions toward its peak rainfall periods in April and May, where precipitation escalates to 98 mm (3.9 in) and 157 mm (6.2 in), respectively. The trend highlights a gradual buildup of moisture in the atmosphere, heralding the lush, verdant landscapes characteristic of Chile's autumn months. With March acting as a bridge between the drier summer and the drenching winter, it sets the stage for the dramatic shifts that follow in the coming months.
In March, La Union, Chile, experiences a humidity level of 79%, marking a slight decline from the preceding months of January and February which reported 81% and 80% respectively. This gradual decrease suggests a transitional phase as the region moves toward the wetter season ahead. Following March, humidity begins to rise again, peaking in the middle of the year, with July and August recording the highest levels at 87%. The overall trend indicates a rhythmic pattern where humidity peaks in the winter months, often exceeding 85%, aligning with the region's climate dynamics. As such, March offers a brief reprieve before the humidity escalates in the months that follow, making it a pivotal point in the yearly climatic cycle.
In March, La Union, Chile, experiences a very high UV Index of 9, indicating that sun protection is essential, with a burn time of just 15 minutes. This is a notable decrease from the extreme levels of January and February, which had indices of 14 and 12 respectively, both requiring caution with a burn time of only 10 minutes. As the season transitions into April, the UV Index drops further to 6, categorized as high, allowing for longer exposure time of 25 minutes. This pattern reveals a significant seasonal shift, urging residents and visitors to adjust their sun safety measures as they move from the intense summer rays into the milder autumn sun. For more detailed information on sun protection and UV levels throughout the year, visit La Union UV Index.
UV Risk Categories
As March unfolds in La Union, Chile, it continues to bask in a warm glow with an impressive 307 hours of sunshine, just shy of February's peak of 310 hours. This subtle dip marks a transition into the cooler months, yet March still showcases a robust display of daylight that hints at the lingering summer vibes. Following a pattern, the month holds onto more sunlight than both April and May, which are further defined by significant decreases to 225 hours and 185 hours, respectively. As the year progresses, a clear trend emerges: La Union enjoys its sunniest months during the tail end of summer, providing a brilliant backdrop for outdoor adventures and relaxation before the winter months set in.
In March, La Union, Chile experiences a 59% chance of sunny weather, marking a noticeable dip from the 76% likelihood in February. This trend indicates the arrival of autumn, as the region transitions toward the wetter months ahead. Following March, the probability of sunshine continues to decline sharply in April and May, where it drops to 25% and 29%, respectively. This pattern of decreasing sunny days highlights the importance of planning outdoor activities earlier in the year, when you can still enjoy the lingering warmth and brightness before the clouds take over in the coming months.
In March, La Union, Chile experiences a transition as daylight decreases to 12 hours, marking the end of summer and the gradual onset of autumn. This trend reflects a broader pattern throughout the year, where the longest days unfold in January with 14 hours of sunlight, gradually waning to 9 hours during the winter months of May through July. As the calendar turns, daylight begins to reclaim its hours in August, reaching 10 hours, before climbing back to 14 hours by November and December. This rhythm of diminishing and renewing daylight not only shapes the landscape but also influences the activities and lifestyles of those living in this vibrant region.
In March, La Union experiences a gentle dip in wind speed, with averages at 2.9 m/s (6 mph), marking a transition from the breezy highs of January and February. The calmer winds hint at the approach of autumn, creating a serene backdrop for outdoor activities. This subtle decline from earlier months is part of a broader seasonal trend, as winds gradually settle, reaching their lowest point in April at 2.4 m/s (5 mph). Interestingly, while March may feel slightly calmer, it carries the nostalgic whispers of summer’s farewell, making it an ideal time for those seeking a blend of tranquility and the lingering warmth of the sun.
Weather in La Union varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in La Union, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in March and January, both months exhibit mild minimum temperatures around 2°C (36°F), but January tends to have a slightly warmer average temperature of 16°C (60°F) compared to March's 14°C (57°F). The maximum temperatures peak higher in January at 32°C (89°F), whereas March reaches a maximum of 30°C (85°F). Precipitation is notably higher in March, with 75 mm (2.9 in) falling over 7 days, while January sees only 27 mm (1.1 in) across 5 days. Humidity levels are similar in both months, hovering around 79% in March and 81% in January, making both months feel relatively damp. For a closer look at January's weather specifics, check out La Union weather in January.
March weather shows a notable range in temperatures, with a minimum of 2°C (36°F) and a maximum of 30°C (85°F), resulting in an average of 14°C (57°F). This month experiences significantly more precipitation, totaling 75 mm (2.9 in) over 7 days, while humidity levels remain relatively high at 79%. In contrast, February offers warmer conditions, with a minimum of 4°C (39°F) and a maximum of 37°C (98°F), and a higher average temperature of 17°C (62°F). It also has less rainfall with only 29 mm (1.1 in) over 4 days, alongside a slightly higher humidity of 80%. For more detailed insights on February weather, visit La Union weather in February.
March and April exhibit distinct differences in weather patterns. In March, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (85°F), with an average of 14°C (57°F). The month experiences 75 mm (2.9 in) of precipitation over 7 days, alongside a humidity level of 79%. In contrast, April sees cooler temperatures, with a minimum of -1°C (31°F), an average of 11°C (53°F), and a maximum of 25°C (77°F). Precipitation increases to 98 mm (3.9 in) across 12 days, accompanied by higher humidity at 84%. For more details on the April weather, you can check La Union weather in April.
In March, the weather features a wider temperature range, with minimums of 2°C (36°F), an average of 14°C (57°F), and highs reaching up to 30°C (85°F). The month sees a moderate level of precipitation at 75 mm (2.9 in) over about 7 days, and humidity levels are relatively comfortable at 79%. In contrast, May experiences cooler temperatures, with minimums dipping as low as -3°C (27°F) and an average of 9°C (48°F), peaking at 21°C (70°F). Additionally, May is much wetter, accumulating 157 mm (6.2 in) of precipitation across 17 days, and exhibits higher humidity levels at 86%. For detailed information, check out La Union weather in May.
The weather in March and June presents a notable contrast. In March, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (85°F), with an average of 14°C (57°F) and relatively lower precipitation at 75 mm (2.9 in) over about 7 days. The humidity levels stand at 79%. In contrast, June experiences cooler temperatures, with a minimum of -4°C (25°F) and a maximum of just 15°C (60°F), averaging 7°C (45°F). It also sees significantly more rainfall, totaling 256 mm (10.1 in) over roughly 20 days, accompanied by higher humidity at 86%. For more details about June's weather, you can check out La Union weather in June.
In comparing the weather between March and July, it's evident that March typically offers more warmth and variability, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 30°C (85°F) and an average of 14°C (57°F). In contrast, July experiences significantly colder conditions, with temperatures ranging from -4°C (25°F) to a maximum of 15°C (60°F), and an average of just 6°C (44°F). Additionally, July sees more precipitation, averaging 199 mm (7.8 in) over 17 days, compared to March's 75 mm (2.9 in) over 7 days. The humidity is slightly higher in July at 87%, compared to March's 79%. For more detailed insights into July weather, you can check La Union weather in July.
The weather in March is generally warmer, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 30°C (85°F), while August offers cooler conditions, with temperatures peaking at 17°C (62°F) and dropping to as low as -5°C (23°F). March experiences relatively lower precipitation at 75 mm (2.9 in) over about 7 days, compared to August's significant rainfall of 226 mm (8.9 in) spread over 18 days. Additionally, humidity levels are slightly higher in August at 87%, compared to 79% in March. For more detailed information about August weather, you can visit La Union weather in August.
March and September showcase a notable contrast in weather conditions. In March, temperatures swing from a cool minimum of 2°C (36°F) to an average of 14°C (57°F) and can peak at a warm 30°C (85°F). While the month experiences 75 mm (2.9 in) of precipitation over about 7 days, the humidity sits at a relatively mild 79%. In comparison, September presents a chillier scene with minimum temperatures dropping to -2°C (29°F), an average of 8°C (47°F), and a maximum of only 21°C (71°F). This month sees increased precipitation, totaling 118 mm (4.6 in) over 13 days, accompanied by higher humidity levels at 85%. For more detailed insights into September weather, visit La Union weather in September.
March and October present contrasting weather patterns. In March, temperatures range from a mild minimum of 2°C (36°F) to a warm maximum of 30°C (85°F), with an average of 14°C (57°F). This month experiences roughly 75 mm (2.9 in) of precipitation over about 7 days and a humidity level of 79%. In contrast, October brings cooler temperatures, with a minimum of -1°C (30°F), an average of 10°C (50°F), and a maximum of 24°C (75°F). It also experiences increased rainfall, totaling 115 mm (4.5 in) across approximately 15 days, along with a slightly higher humidity of 83%. For a deeper look into October's weather patterns, visit La Union weather in October.
March and November present mild weather conditions with subtle differences. In March, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (85°F), averaging around 14°C (57°F). The month sees about 75 mm (2.9 in) of precipitation over roughly 7 days, accompanied by a humidity level of 79%. In contrast, November has slightly cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 25°C (77°F), averaging 13°C (55°F). Precipitation in November is similar at 73 mm (2.9 in), but it occurs over 9 days, with humidity slightly higher at 80%. For more detailed weather information, you can check La Union weather in November.
In March, temperatures can vary more significantly, with a minimum of 2°C (36°F) and a maximum of 30°C (85°F), contributing to an average temperature of 14°C (57°F). The month typically experiences 75 mm (2.9 in) of precipitation over about 7 days, along with a humidity level of 79%. In contrast, December tends to offer slightly warmer temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (86°F), resulting in an average of 15°C (59°F). Rainfall is less frequent in December, totaling 52 mm (2.0 in) over just 6 days, accompanied by slightly higher humidity at 82%. For more specific details on December weather, you can visit La Union weather in December.
As March transitions into autumn, La Union experiences a remarkable change in weather compared to the earlier summer months. Temperatures cool down, offering mild average highs that hover around a comfortable 30°C during the day, while nights can dip to a brisk 14°C. This month sees an uptick in rainfall, with about 75 mm over approximately seven days, resulting in a notable shift in humidity levels, which reach around 79%. This blend of milder temperatures and increased precipitation provides a refreshing respite from the dry summer heat. For more detailed insights about the region's conditions, check out La Union Climate.