Last updated: February 24, 2025
In San Marcos, United States, March ushers in a varied climate, with maximum temperatures reaching 33°C (91°F) that hint at the warmer days ahead. The average temperature hovers around a comfortable 17°C (64°F), while the nights can dip to a chilly minimum of -3°C (27°F). This month, residents experience 67 mm (2.6 in) of precipitation over 11 days, contributing to a relatively high humidity level of 74%. Overall, March in San Marcos embodies a transitioning season, characterized by its dynamic weather and refreshing springtime vibes.
In March, temperatures in San Marcos begin to show a promising transition towards spring, marking a notable warming trend compared to the colder winter months. With a minimum of -3°C (27°F) and an average temperature rising to 17°C (64°F), the days gradually become more pleasant. The maximum temperature can reach a comfortable 33°C (91°F), creating ideal conditions for outdoor activities. This month serves as a bridge into the balmy warmth of April and May, where temperatures continue to climb, ushering in a vibrant atmosphere. Overall, March offers a refreshing reprieve from winter's chill, hinting at the soon-to-come sun-soaked days of spring.
In March, San Marcos experiences a notable uptick in precipitation, with 67 mm (2.6 inches) of rain accumulating over 11 days. This marks an increase from February's 60 mm, indicating a transition into wetter spring conditions. As the region approaches April, the precipitation continues to rise, peaking in May with a significant 149 mm, showcasing a clear trend of increasing rainfall as temperatures warm. The early spring showers not only nourish the landscape but also set the stage for the lush growth that follows in the months ahead. Overall, March encapsulates the essence of spring’s arrival, blending variability and renewal as the rainfall begins to intensify.
In March, San Marcos experiences a slight dip in humidity at 74%, marking a transition towards warmer months. Following two consistently humid winter months at 79%, this reduction suggests a shift in the weather pattern as the season begins to change. The drop is subtle, yet it foreshadows the higher humidity levels that return in May, peaking at 81%. Observing the trend, it’s clear that humidity levels tend to increase in springtime, peaking once again in late autumn, while summer months see a refreshing decrease, bringing in drier air. Overall, March serves as a pivotal point in the humidity cycle, indicating the approach of warmer, more humid days ahead.
As March approaches in San Marcos, the UV Index rises significantly, reaching 9—firmly placing it in the very high exposure category. This increase follows a pattern from February, where the UV Index was 8, indicating a consistent trend of heightened sun intensity as spring unfolds. With a burn time of just 15 minutes, it’s essential for residents and visitors to take precautions against overexposure, as the sun's rays become more potent. This trend signals the arrival of the region's sunny season, which will only intensify in the coming months, especially as April braces for an even more startling 11 on the UV scale. For more detailed insights and updates, visit San Marcos UV Index.
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March shines brightly in San Marcos, United States, with an impressive 229 hours of sunshine, marking a delightful shift from the winter months. As the days grow longer and warmer, March begins a steady upward trend in sunlight that continues into spring and summer. Following a cozy February with 165 hours, residents and visitors alike can enjoy the invigorating transition into April's 260 hours of sunshine, and then May's even brighter 282 hours. This sunny ascent peaks in the summer months of June and July, where San Marcos basks in an abundance of light, reaching up to 348 hours. With each passing month, the sun's presence feels more pronounced, making March not just a precursor to warmer days but a vibrant herald of the brilliant sunshine to come.
March in San Marcos shows a moderate likelihood of sunny weather, with a 50% chance of sun. As winter transitions into spring, this month stands out among its neighbors: January starts strong at 58%, while February dips to 44%. Interestingly, March’s sunshine potential is higher than in April and May, which drop to 41% and 29% respectively, suggesting a brief peak in sunny days before the summer haze. This pattern hints at March being a favorable time for enjoying outdoor activities, just as the blooms of spring begin to emerge. As the year progresses, the chance of sunny days fluctuates, but March maintains a compelling balance, marking it as a delightful month for sunshine seekers.
As March arrives in San Marcos, the days begin to stretch, offering approximately 12 hours of daylight—an exciting increase from the 10 hours in January and 11 hours in February. This upward trend marks the transition into spring, as sunlight starts to dominate and gradually prepares the landscape for the vibrant colors of blooming flora. Following March, April maintains the same daylight duration, but as April gives way to May, residents can look forward to an impressive 13 hours of daylight, heralding longer and sunnier days ahead. This steady increase emphasizes the region's shift towards summer, enriching the outdoor experience for locals and visitors alike.
As March arrives in San Marcos, the winds begin to pick up, ushering in a springtime freshness with an average speed of 4.1 m/s (9 mph). This increase reflects a slight rise from the calmer months of January and February, which featured average winds of 3.4 m/s (8 mph) and 3.9 m/s (9 mph), respectively. As we transition into April, the wind speed settles back to 3.9 m/s (9 mph), creating a trend of fluctuating breezes that characterize the early months of the year. The pattern suggests that as the seasons shift, so too do the winds—providing a hint of the vibrant growth and activity to come.
The weather in San Marcos changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of March's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Marcos and find detailed weather information for every month.
In comparing the weather in March to January, March tends to be significantly warmer, with average temperatures around 17°C (64°F) compared to January's cooler average of 11°C (52°F). The minimum temperatures in January dip lower, reaching -7°C (19°F), while March's lowest is milder at -3°C (27°F). Additionally, March experiences more precipitation, with 67 mm (2.6 in) over 11 days, compared to January's 48 mm (1.9 in) over just 6 days. Despite the increased rainfall in March, the humidity is slightly lower at 74% compared to 79% in January. For more detailed information on January weather, you can visit San Marcos weather in January.
March brings a noticeable warmth compared to February, with average temperatures rising from 12°C (54°F) in February to 17°C (64°F) in March. While February experiences colder nights with a minimum of -15°C (6°F), March's lows are milder at -3°C (27°F). Precipitation levels are slightly higher in March at 67 mm (2.6 in) over 11 days, compared to February's 60 mm (2.4 in) over 10 days; however, humidity remains relatively similar, with February at 79% and March at 74%. For a more detailed look at the February weather, check out San Marcos weather in February.
March and April display noteworthy differences in weather patterns. In March, temperatures range from a low of -3°C (27°F) to a high of 33°C (91°F), averaging around 17°C (64°F). The month sees about 67 mm (2.6 in) of precipitation across 11 days, with humidity levels at 74%. In contrast, April experiences milder mornings with a minimum temperature of 3°C (38°F) and warms up to a maximum of 35°C (94°F), averaging 20°C (69°F). Although April has slightly higher precipitation at 89 mm (3.5 in) over 9 days, humidity remains somewhat elevated at 76%. For a detailed look at San Marcos weather this month, visit San Marcos weather in April.
March and May exhibit notable differences in weather patterns. In March, temperatures fluctuate from a chilly minimum of -3°C (27°F) to a comfortable average of 17°C (64°F), with maximums reaching 33°C (91°F). The month experiences about 67 mm (2.6 in) of precipitation over 11 days and maintains a humidity level of 74%. In contrast, May offers a warmer climate, with minimum temperatures rising to 10°C (51°F), an average of 25°C (76°F), and maximums soaring to 36°C (98°F). Additionally, May sees increased precipitation at 149 mm (5.9 in) over 14 days, coupled with higher humidity at 81%. For a more detailed look at the weather in May, you can visit San Marcos weather in May.
The weather in March and June shows a striking contrast. In March, temperatures can range from a chilly -3°C (27°F) to a warm 33°C (91°F), with an average of 17°C (64°F). This month also sees approximately 67 mm (2.6 in) of precipitation over about 11 days, accompanied by a humidity level of 74%. In contrast, June brings significantly warmer conditions, with minimum temperatures starting at 17°C (63°F) and peaking at 37°C (100°F), averaging around 27°C (82°F). While June experiences slightly higher precipitation at 102 mm (4.0 in) over 12 days, the humidity remains relatively consistent at 76%. For more detailed insights on June conditions, check out San Marcos weather in June.
March and July present distinctly different weather patterns. In March, temperatures fluctuate between a chilly minimum of -3°C (27°F) to a warm average of 17°C (64°F), peaking at 33°C (91°F). The month sees considerable precipitation, with around 67 mm (2.6 in) falling over approximately 11 days, accompanied by a relatively high humidity of 74%. In contrast, July experiences much warmer conditions with a minimum temperature of 17°C (63°F) and an average of 29°C (84°F), reaching a scorching maximum of 41°C (106°F). Although July has slightly higher total precipitation at 79 mm (3.1 in), it occurs over fewer days (9 days) and at a lower humidity level of 66%. For more details on July conditions, you can refer to San Marcos weather in July.
March and August present contrasting weather patterns in terms of temperature and humidity. In March, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 33°C (91°F), with an average of 17°C (64°F). The month experiences a significant amount of precipitation, totaling 67 mm (2.6 in) over approximately 11 days, along with a relative humidity of 74%. In contrast, August boasts much warmer temperatures, with a minimum of 20°C (68°F) and a maximum soaring up to 40°C (104°F). The average temperature sits at 29°C (85°F), yet the humidity drops to a more comfortable 58%. Despite having fewer rainy days, August receives more precipitation overall, totaling 111 mm (4.4 in) over just 7 days. For more details, you can visit San Marcos weather in August.
In March, temperatures in San Marcos range from a chilly minimum of -3°C (27°F) to a warm maximum of 33°C (91°F), with an average of 17°C (64°F). The month experiences about 67 mm (2.6 in) of precipitation over 11 days, contributing to a higher humidity of 74%. In contrast, September sees milder nights with a minimum temperature of 11°C (53°F) and a significantly warmer average of 26°C (79°F), reaching up to 38°C (100°F) at its peak. Precipitation increases to 112 mm (4.4 in) over the same number of days, but humidity drops to 65%. For more details, visit San Marcos weather in September.
March and October in San Marcos exhibit some notable differences in weather. March typically experiences a wider temperature range, with minimums dipping to -3°C (27°F) and maximums reaching up to 33°C (91°F). In contrast, October's temperatures are milder, ranging from a minimum of 3°C (37°F) to a maximum of 35°C (96°F). Precipitation levels also vary, with March receiving about 67 mm (2.6 in) across 11 days, while October sees an increase to 94 mm (3.7 in) over 10 days. Interestingly, despite these differences, both months maintain a consistent humidity level of 74%. For more detailed information on October weather, you can refer to San Marcos weather in October.
In March, temperatures range from a chilly minimum of -3°C (27°F) to a warm maximum of 33°C (91°F), with an average temperature of 17°C (64°F). This month experiences a higher level of precipitation, totaling 67 mm (2.6 in) over about 11 days, and humidity levels are moderate at 74%.
In contrast, November sees slightly cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 30°C (86°F), averaging around 15°C (60°F). Precipitation decreases to 49 mm (1.9 in) over just 6 days, while humidity slightly increases to 81%. For more details, check San Marcos weather in November.
March and December in San Marcos present distinct weather patterns. In March, temperatures range from a low of -3°C (27°F) to a high of 33°C (91°F), with an average of 17°C (64°F) and 67 mm (2.6 in) of precipitation over approximately 11 days. The humidity sits at 74%, providing a generally mild and variable climate. In contrast, December features a cooler temperature range, with a minimum of -3°C (27°F) and a maximum of 29°C (84°F), and an average of 13°C (55°F). Although precipitation is slightly higher at 73 mm (2.9 in) over 7 days, the humidity increases to 86%, contributing to a more damp and chilly atmosphere. For more specific details, you can check San Marcos weather in December.
March in San Marcos is a transitional month, showcasing a blend of cool and warm temperatures that hint at the approaching spring. With an average temperature that sits comfortably in the range, residents experience both warm afternoons and the occasional chilly night, making it unlike the more consistent temperatures of summer or winter months. Additionally, the humidity levels rise, contributing to a unique atmosphere, while precipitation occurs over a modest number of days, reflecting a move away from the drier winter season. For those seeking more insights into seasonal experiences, check out the comprehensive guide on San Marcos Climate.