Last updated: January 18, 2025
Cartago, Costa Rica, features a unique climate characterized by the Köppen-Geiger classes Cfb (Oceanic) and Am (Tropical Monsoon). With temperatures ranging from a minimum of 8°C (47°F) in February to a maximum of 28°C (82°F) in May, the region experiences a comfortable average temperature of 18°C (64°F) year-round. This pleasant climate supports a rich biodiversity and vibrant ecosystems, making Cartago a captivating destination for both nature enthusiasts and climate observers alike.
Cartago, Costa Rica exhibits a distinct temperature pattern throughout the year, with mild conditions prevailing in the cooler months of January and February, where minimums settle at 8°C (47°F) and peak at 25°C (78°F). As the year progresses into the warmer months of April and May, temperatures gradually rise, reaching a maximum of 28°C (82°F) in May. Following this warm peak, a slight cooling trend is observed from June to October, with average temperatures stabilizing around 18°C (65°F) and maximums ranging from 25°C to 27°C (78°F to 81°F). The cooler, dry months of December and January experience minimums returning to 10-12°C (50-54°F), rounding out a year that showcases Cartago’s climate as pleasantly moderate, with only subtle variations between the seasons.
Turrialba experiences a minimum temperature of 10°C (51°F) in February and reaches a maximum of 28°C (82°F) in May, while Cartago sees slightly warmer conditions, with minimum temperatures of 11°C (51°F) in January and a maximum of 26°C (79°F) in May. For more details on their climate, you can visit monthly temperatures in Turrialba and monthly temperatures in Cartago.
Cartago, Costa Rica experiences a diverse precipitation pattern characterized by distinct wet and dry seasons. January starts the year with 98 mm (3.9 in) of rainfall, followed by a gradual decrease in February to 52 mm (2.0 in). March sees a slight uptick, receiving 58 mm (2.3 in). As the dry season gives way to the wet season in April, precipitation significantly increases to 131 mm (5.2 in), peaking dramatically in May with 456 mm (17.9 in), marking the onset of the region's heaviest rainfall.
The rainy season continues into the summer months, with June receiving 310 mm (12.2 in) and July slightly lower at 257 mm (10.1 in). August and September maintain high levels of rainfall, measuring 288 mm (11.4 in) and 351 mm (13.8 in), respectively. The heaviest rainfall occurs in October, with 495 mm (19.5 in), followed by November at 275 mm (10.8 in) and December with 161 mm (6.3 in). Across these months, the frequency of rainy days also peaks in October, averaging 29 days, underscoring the dramatic seasonal contrast in Cartago's climate.
In Cartago, Costa Rica, sunshine duration exhibits distinct seasonal trends, with a noticeable increase in sunlight hours as the year progresses from winter to summer. January begins the year with 247 hours of sunshine, gradually rising through February to 297 hours and peaking in March at 330 hours. This mid-summer highlight is typically marked by the clearest skies and the highest levels of solar radiation, creating ideal conditions for outdoor activities and exploration.
As the rainy season approaches, sunshine hours begin to decline slightly, with April experiencing 299 hours before dipping to 239 hours in May. The onset of heavier rainfall in May and June signals a shift in the weather, which is reflected in the relatively stable but lower sunshine hours of 244 and 240 hours respectively. Despite this decrease, the months of July and August maintain 242 and 243 hours of sunshine, providing valuable opportunities for sunshine seekers. The transition toward the end of the year shows a slight recovery, with December showcasing 293 hours of sun, but still lower than the exceptional March figures. Overall, the variation in sunlight throughout the year underscores Cartago's dynamic climate, blending perfect sunny days with the lush greenery brought on by seasonal rains.
In Cartago, Costa Rica, the UV Index consistently ranks at an extreme level throughout the year, indicating a high risk of harm from unprotected sun exposure. Starting with a UV Index of 13 in January, it increases to 14 in February and reaches a peak of 16 in both March and April. These elevated levels demand vigilance, as even just 10 minutes of unprotected exposure can lead to skin damage, making sunscreen and protective clothing essential during these months.
As the rainy season arrives, the UV Index remains markedly high, with values of 15 recorded from May through July and gradually lowering to 14 in August and September. Even in October, the UV Index holds firm at 15, while November and December see a slight decrease to 12 and 11, respectively. Despite these marginal reductions, the extreme exposure category remains, underscoring the need for sun protection year-round. The consistent level of UV radiation in Cartago serves as a reminder of the fierce tropical sun, warranting proactive measures to safeguard skin health in this vibrant region.
UV Risk Categories
Cartago, Costa Rica experiences relatively consistent daylight duration throughout the year, with only slight variations that reflect the region's tropical climate. In the early months of January and February, daylight lasts for 11 hours, providing manageable light for daily activities. As spring progresses into March and April, daylight increases to 12 hours, allowing for extended opportunities to enjoy the lush surroundings and vibrant local culture. This consistent 12-hour period continues through the warmer months of May to August, supporting various outdoor pursuits and enhancing the region's appeal.
As the year transitions towards the end, daylight duration once again tapers off, returning to 11 hours in October, November, and December. This rhythmic pattern of daylight hours contributes to Cartago's stable climate, allowing residents and visitors alike to plan their activities with the assurance of ample sunlight. The minor fluctuations in daylight duration throughout the year exemplify the region's predictability in terms of light exposure, making it an inviting destination for those seeking both adventure and relaxation in a sun-kissed environment.
Cartago, Costa Rica, experiences a temperate climate characterized by mild temperatures throughout the year, with averages around 18°C (65°F). The warmest months, April and May, see maximums of 26°C (78°F) while the cooler months range from 11°C (51°F) to 14°C (57°F) for minimums. Rainfall varies significantly, peaking in May and October with over 500 mm (20 in), contributing to a pronounced wet season. Sunshine hours are highest in February and March, averaging over 300 hours, which contrasts sharply with the cloudier and wetter months. For more detailed information, visit Cartago climate.
Turrialba, Costa Rica, experiences a mild climate characterized by temperatures ranging from a low of 10°C (51°F) in February to a high of 28°C (82°F) in May. The region sees significant rainfall, particularly during May and October, with precipitation levels reaching up to 468 mm (18.4 in) in May. Sunshine hours vary throughout the year, peaking at 330 hours in March, while October records the least sun exposure with 257 hours. Overall, Turrialba's climate is marked by a blend of warmth and humidity, making it an intriguing destination for nature lovers and adventurers. For more detailed information, visit Turrialba climate.
In summary, Cartago, Costa Rica, presents a captivating climate characterized by consistent temperature patterns, significant rainfall fluctuations, abundant sunshine, and stable daylight duration throughout the year. With an average temperature range that fosters a pleasant environment, alongside an extreme UV Index that calls for sun protection, the region offers both natural beauty and outdoor adventure. The cyclical nature of daylight and precipitation underscores the balance of Cartago's tropical ecosystem, highlighting the interplay between sun and rain that nourishes its rich biodiversity. Collectively, these climatic elements create an appealing destination for visitors, whether they seek to bask in the sun, explore lush landscapes, or engage with the vibrant local culture.