Last updated: August 21, 2025
March in Atenas, Costa Rica presents a delightful blend of warm weather and refreshing breezes. With maximum temperatures reaching up to 32°C (89°F) and an average of 25°C (77°F), the days are pleasantly warm, while nights cool down to a comfortable 18°C (64°F). Although the month sees a modest 18 mm (0.7 in) of rainfall over just 4 days, humidity levels hover at a comfortable 66%, making it an ideal time to explore the lush surroundings or relax in the vibrant atmosphere of this charming town. Embrace the beauty of March in Atenas, where every moment is a celebration of tropical warmth and mild evenings.
In March, Atenas, Costa Rica experiences a delightful transition as temperatures rise, making it one of the warmest months of the year. The average temperature reaches a comfortable 25°C (77°F), with daytime highs peaking at 32°C (89°F). Early in the month, nights are pleasantly mild with lows around 18°C (64°F). This slight increase from February, paired with the consistency seen in the months prior, emphasizes the region's gradual warming trend as it moves towards the rainy season. Overall, March offers an inviting warmth that encourages outdoor adventures and relaxation under the sun, highlighting why Costa Rica is a favorite destination for travelers.
In March, Atenas, Costa Rica experiences a modest precipitation total of 18 mm (0.7 inches), falling over just 4 days. This marks a slight increase from February’s paltry 13 mm (0.5 inches), indicating the gradual shift toward the wetter months ahead. While still relatively dry compared to the deluge of the following months, March's rainfall hints at the onset of the rainy season, which culminates in April with a staggering 118 mm (4.6 inches). As the region transitions from the drier early months of the year, March serves as a subtle reminder of the lush greenery that soon envelops Atenas, setting the stage for the vibrant, tropical climate the region is known for.
In March, the humidity in Atenas, Costa Rica, experiences a slight dip to 66%, providing a refreshing contrast to the elevated levels typical of the following months. This gradual decrease from the consistent 68% humidity observed in January and February signals the onset of seasonal changes as the region transitions into the wetter months. As April approaches, humidity begins to rise again to 67%, foreshadowing the substantial increase to 84% in June. This trend highlights the climate dynamics of Atenas, where spring ushers in drier days before the lush, tropical conditions of summer take hold.
As March rolls into Atenas, Costa Rica, the UV Index surges to an impressive 15, placing it firmly in the extreme exposure category. This means that within just 10 minutes of sun exposure, you could be at risk of a sunburn, a trend that persists as the year progresses into April. Unlike the earlier months of January and February where the UV Index was slightly lower at 12 and 13 respectively, March heralds the peak of sun intensity, showcasing the region's tropical climate. With consistent high UV levels throughout the year, particularly from March through May, it’s crucial for residents and visitors alike to take protective measures against the sun. For more detailed information on UV exposure in Atenas, be sure to check out the Atenas UV Index.
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As March unfolds in Atenas, Costa Rica, the region basks in an impressive 329 hours of sunshine, marking it as one of the sunniest months of the year. This delightful spike reflects a broader trend, as the days gradually lengthen from the cool depths of January, which recorded 249 hours. Following this pattern, sunshine peaks in March before settling back to a still bright 300 hours in April. It's a burst of light that marks the transition into the vibrant dry season, inviting both locals and visitors to enjoy the landscape's lush beauty under the warm sun. As May approaches, the hours dip to 235, yet the warmth and brightness remain a highlight of life in this picturesque locale.
In Atenas, Costa Rica, March offers a moderate chance of sunny weather, with about 52% likelihood of sunshine. While this figure is slightly lower than the preceding months of January and February, which boast 57% and 55% chances respectively, it still provides ample opportunity for outdoor activities and enjoying the lush surroundings. As the region transitions into the rainy season, the likelihood of sun significantly drops in April to 24%, highlighting March as a transition month where visitors can still experience pleasant weather before the clouds become more frequent. Overall, those planning a visit in March can expect a delightful mix of sun and scenery, making it a prime time for exploration.
In Atenas, Costa Rica, the enchanting daylight hours show a fascinating progression as the calendar turns from winter to spring. In January and February, sunlight graces the land for a consistent 11 hours, creating a serene atmosphere. As March emerges, the days noticeably stretch to 12 hours, heralding the arrival of longer, sun-drenched afternoons. This increase continues through April, May, June, July, August, and September, where daylight remains steady at 12 hours, allowing plenty of time to soak in the vibrant surroundings. As the year transitions into October, daylight begins to wane again, reducing to 11 hours once more, eventually leading into November and December. This rhythmic cycle of light not only reflects the tropical climate of the region but also sets the perfect backdrop for outdoor adventures and relaxation throughout the year.
In Atenas, Costa Rica, March ushers in a slight uptick in average wind speed, reaching 2.1 m/s (5 mph), which is just above the calm breezes of the previous months. This gentle increase marks the onset of a transitional period, before the winds ease in April to 1.5 m/s (3 mph). Interestingly, as the months progress into the warmer season, the wind tends to slow down, reflecting the shift in weather patterns typical for this lush region. Overall, March stands out as a brief interlude where the breeze picks up just enough to herald the upcoming changes, making it an ideal time for outdoor activities amid the blossoming beauty of Costa Rica’s landscape.
Weather in Atenas varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Atenas, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, we see a slight increase in temperatures during March, with averages reaching 25°C (77°F) compared to January's average of 23°C (74°F). While both months experience mild minimum temperatures, March typically sees higher maximum temperatures, reaching up to 32°C (89°F) versus January’s 31°C (87°F). Precipitation is more frequent in January, accumulating around 28 mm (1.1 in) over 7 days, compared to March’s lighter rainfall of 18 mm (0.7 in) over just 4 days. Additionally, both months have similar humidity levels, with March at 66% and January slightly higher at 68%. For a more detailed overview, you can visit Atenas weather in January.
In comparing the weather of March and February, we observe that March tends to be slightly warmer, with an average temperature of 25°C (77°F) compared to February’s 24°C (76°F). The maximum temperatures are also a bit higher in March, reaching 32°C (89°F), while February peaks at 31°C (88°F). Additionally, March experiences a marginally greater amount of precipitation, totaling 18 mm (0.7 in) over 4 days, compared to February's 13 mm (0.5 in) over 3 days. Humidity levels are slightly lower in March at 66%, compared to February’s 68%. For more details on February weather, you can visit Atenas weather in February.
In March, the weather in Atenas features warm temperatures, with a minimum of 18°C (64°F), an average of 25°C (77°F), and a maximum of 32°C (89°F). The month sees relatively low precipitation at 18 mm (0.7 inches) over just four days, accompanied by a humidity level of 66%.
In contrast, April experiences a slight dip in average temperature, with a maximum of 31°C (89°F) and an average of 24°C (76°F), while maintaining the same minimum temperature of 18°C (64°F). However, the month is significantly wetter, with precipitation soaring to 118 mm (4.6 inches) spread over 24 days and a marginal increase in humidity to 67%.
For more details on the weather in April, you can visit Atenas weather in April.
March and May exhibit distinct weather patterns in Atenas. In March, temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 25°C (77°F), alongside relatively low precipitation of 18 mm (0.7 in) over just 4 days. In contrast, May experiences slightly higher minimum temperatures at 19°C (67°F) and a lower average temperature of 24°C (75°F), but is characterized by significantly higher rainfall totaling 412 mm (16.2 in) spread across 30 days. The humidity levels also increase slightly in May, reaching 69%. For more details on Atenas weather in May, check out Atenas weather in May.
In March, the weather is generally warm, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), and an average of 25°C (77°F). The month experiences relatively low precipitation, totaling only 18 mm (0.7 in) over about 4 days, with a humidity level of 66%.
By June, however, the climate changes significantly. The minimum temperature rises slightly to 19°C (66°F), while the average drops to 24°C (75°F) and the maximum reaches 30°C (86°F). June is characterized by much heavier rainfall, with a staggering 397 mm (15.6 in) falling over the entire month, leading to precipitation on nearly every day (30 days). Additionally, humidity levels increase to 84%, making the atmosphere feel quite muggy.
For more detailed information about the weather in Atenas during June, you can check out this link: Atenas weather in June.
March and July present distinct differences in weather patterns. In March, temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average temperature of 25°C (77°F) and relatively low precipitation of 18 mm (0.7 in) over just four days. Humidity levels sit at 66%, offering a warm and moderately dry atmosphere.
In contrast, July experiences milder temperatures, with a minimum of 19°C (67°F) and a maximum of 29°C (85°F), averaging 24°C (75°F). However, this month is characterized by heavy rainfall, receiving 296 mm (11.7 in) across 30 days, resulting in much higher humidity at 85%. For more insights about the weather specifics, you can visit Atenas weather in July.
When comparing the weather in March and August, notable differences emerge. March typically experiences warmer temperatures, with minimums around 18°C (64°F) and averages peaking at 25°C (77°F), while August has slightly cooler minimums at 19°C (66°F) and an average of 23°C (74°F). Additionally, March tends to be drier, with only 18 mm (0.7 in) of precipitation over about 4 days, whereas August is characterized by significantly higher rainfall of 393 mm (15.5 in) spread across 30 days. The humidity also rises from March's 66% to August's 82%, creating a noticeably more humid atmosphere during the latter month. For more details, you can check out Atenas weather in August.
In March, the weather in Atenas is generally warm and pleasant, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (89°F). The month sees relatively low precipitation, averaging only 18 mm (0.7 in) over about 4 days, and humidity levels are moderate at 66%.
In contrast, September experiences a notable shift, characterized by cooler average temperatures of around 23°C (74°F) and higher humidity at 81%. The month is significantly wetter, with an average precipitation of 461 mm (18.2 in) spread across 29 days, making it one of the rainiest times of the year. For more details, you can check out Atenas weather in September.
March and October in Atenas showcase notable differences in weather patterns. In March, temperatures are warmer, with average highs reaching 32°C (89°F) and significantly lower precipitation of 18 mm (0.7 in) over just 4 days. Conversely, October experiences a cooler average temperature of 23°C (73°F), but it is characterized by heavy rainfall, accumulating 639 mm (25.2 in) over the course of the month, with rain occurring almost daily. Additionally, humidity levels rise in October to 80%, compared to 66% in March, contributing to a more humid atmosphere. For more detailed information, you can check Atenas weather in October.
In comparing the weather between March and November, it's clear that March is generally warmer and drier. With temperatures averaging 25°C (77°F) and a maximum of 32°C (89°F), March also sees relatively low precipitation of just 18 mm (0.7 in) over 4 days and humidity at 66%. In contrast, November experiences cooler temperatures, with an average of 23°C (74°F) and a maximum of 29°C (85°F), but is characterized by much heavier rainfall, totaling 251 mm (9.9 in) across 28 days and higher humidity at 80%. For more detailed insights into the weather in November, you can check Atenas weather in November.
March and December offer distinct weather experiences, reflecting the transition between seasons. In March, temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 25°C (77°F). The month sees fewer rainy days, with only 18 mm (0.7 in) of precipitation over just 4 days, resulting in a humidity level of 66%. In contrast, December experiences slightly cooler temperatures, with a minimum of 18°C (65°F) and a maximum of 30°C (86°F), averaging 23°C (74°F). However, it is significantly wetter, with 72 mm (2.8 in) of rain spread across 18 days, leading to increased humidity at 72%. For more details on December weather, visit Atenas weather in December.
March in Atenas ushers in a delightful blend of warmth and moderate humidity, creating ideal conditions for outdoor activities. As temperatures rise, reaching their peak compared to the cooler months, the average remains comfortably pleasant. While brief rain showers may occur, they are infrequent, allowing for plenty of sunshine to dominate the days. This transitional period not only marks a shift towards the dryer season but also offers an inviting escape for visitors seeking to enjoy the lush landscapes and vibrant culture. For a deeper understanding of what to expect throughout the year, explore Atenas Climate.