Last updated: August 21, 2025
Turrialba, Costa Rica, in December experiences a mild and humid climate, characterized by an average temperature of 18°C (64°F), with daily highs reaching up to 23°C (74°F) and nighttime lows dropping to about 12°C (54°F). This month sees significant precipitation, totaling 290 mm (11.4 in) over approximately 20 days, resulting in a lush, vibrant landscape. With humidity levels averaging around 72%, December in Turrialba is ideal for those who appreciate a cooler climate infused with the refreshing scent of rain-soaked nature.
In December, Turrialba, Costa Rica, experiences a delightful transition as the year comes to a close. The temperatures range from a comfortable 12°C (54°F) at night to a pleasant max of 23°C (74°F) during the day, yielding an average of 18°C (64°F). This month marks a slight dip in temperatures compared to the warmer months preceding it, especially as average highs gradually decrease from November's 24°C (76°F). The cooler nights, along with the mild daytime warmth, create an inviting atmosphere perfect for exploring the lush surroundings or enjoying the festive spirit of the season. As the region heads into its wet season, December’s temperatures serve as a gentle reminder of the unique charm Costa Rica offers, blending comfort with the allure of its tropical landscape.
December in Turrialba, Costa Rica, marks a significant transition in the precipitation pattern. With an average of 290 mm (11.4 in) spread over 20 days, the month experiences a notable decrease compared to the peak rainy months of October and November, which see figures soaring above 300 mm. This decline signals the end of the intense wet season, while still offering ample moisture that nurtures the lush landscape characteristic of the region. As the year wraps up, December’s rainfall tends to foster a refreshing atmosphere, making it a vibrant time for nature enthusiasts to explore the diverse ecosystems that thrive in a setting enriched by this seasonal bounty.
December in Turrialba, Costa Rica, brings a slight reprieve with humidity levels averaging 72%, providing a comfortable environment as the year winds down. This month marks a notable dip from the peak humidity experienced in the rainy season, particularly in June and July, where levels soared to 84% and 85% respectively. Following this mid-year spike, the humidity begins to stabilize, with November maintaining a consistent 80% before the slight drop in December. Overall, the trend reveals a year characterized by moderate humidity, with the notable exceptions of the wetter months during the peak of the rainy season, setting the stage for a refreshing close to the year in this lush tropical region.
In December, Turrialba, Costa Rica, experiences a slight decrease in the UV Index, which drops to 10 categorized as very high, with a recommended burn time of 15 minutes. This marks a transition from the intense extreme levels seen throughout earlier months, where exposure was consistently rated at 12 to 15. Despite this reduction, visitors should remain vigilant and protect their skin, as the sun’s rays can still inflict harm quickly. As you enjoy the beautiful landscapes of Turrialba during this festive season, make sure to stay informed about the UV levels for a safe and enjoyable experience. For more details, check out the comprehensive information available at Turrialba UV Index.
UV Risk Categories
December in Turrialba, Costa Rica, welcomes a delightful 287 hours of sunshine, fitting perfectly into a year characterized by a beautiful arc of bright days. As the rainy season recedes, daylight hours increase from 243 hours in January to a peak of 330 hours in March, showcasing a steady climb in brilliance that sets the stage for the forthcoming dry season. The months of April and May maintain this sunny momentum before a gradual decline through the summer months, where the sunshine dips to the low 250s. However, December rejuvenates with a notable increase, allowing visitors to bask in the warm glow of the sun, making it a splendid time to explore Turrialba's stunning landscapes. Overall, the year rounds out with a wonderfully balanced pattern of sunshine, making Turrialba a sun-seeker's paradise as the year concludes.
December in Turrialba, Costa Rica, brings a refreshing 38% chance of sunny weather, making it a delightful month for those seeking sunshine. As the year winds down, the likelihood of sunny days shows an upswing compared to the preceding months; notably, after the heavy rains of the wet season from May through October, December offers a pleasant respite. While not as sunny as early months like January, it stands out against the dismal probabilities of mid-year, allowing visitors to bask in more favorable conditions. This trend highlights December as an ideal time to explore and enjoy the lush landscapes of Turrialba under a welcoming sun.
In Turrialba, Costa Rica, daylight hours exhibit a captivating rhythm throughout the year. From January to February, the sun graces the region with 11 hours of daylight, creating a gentle beginning to the year. As spring emerges in March, daylight peaks at 12 hours, extending the warmth and brightness into the early summer months of April through September. This consistent 12-hour daylight duration fosters an inviting environment for both locals and visitors to enjoy the lush landscapes. As the year winds down, October through December sees a return to 11 hours of daylight, wrapping up the year with a comforting familiarity. Overall, the variation reveals a subtle yet engaging pattern, where longer days in the middle months encourage vibrant activity, while shorter days towards the year's end offer a tranquil close.
As December rolls into Turrialba, Costa Rica, the wind begins to pick up slightly, averaging 1.7 m/s (4 mph)—a refreshing shift from the calmer months of October and November. Notably, this increase heralds a return to the more robust breezes experienced earlier in the year, similar to the steady winds of January and March. This trend suggests a transition as the region moves toward the peak of its dry season, allowing visitors and locals alike to enjoy the invigorating air on outdoor adventures. With December's gentle gusts, the atmosphere remains inviting, making it an ideal time for exploring the breathtaking landscapes and vibrant culture that Turrialba has to offer.
Weather in Turrialba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Turrialba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally warm with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), and an average of 18°C (64°F). However, it is also characterized by high precipitation, totaling 290 mm (11.4 in) over 20 days, and a humidity level of 72%. In contrast, January sees slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 24°C (75°F), averaging 17°C (63°F). Precipitation decreases to 194 mm (7.6 in) over 17 days, and humidity drops to 68%. For more detailed information, you can visit Turrialba weather in January.
In December, the weather tends to be warmer with average temperatures around 18°C (64°F) and maximums reaching 23°C (74°F). However, December also experiences higher precipitation, totaling 290 mm (11.4 in) over 20 days, and a relative humidity of 72%. In contrast, February sees slightly cooler averages at 17°C (63°F) and maximums peaking at 24°C (76°F), but it enjoys significantly less rain, with only 105 mm (4.1 in) over 18 days and a humidity level of 68%. Overall, February offers a drier and somewhat milder climate compared to the wetter and warmer conditions of December. For more details, check Turrialba weather in February.
In December, the weather is warmer with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F). However, this month also sees significantly higher precipitation, with around 290 mm (11.4 in) spread over 20 days, resulting in a humidity level of 72%. In contrast, March experiences slightly cooler average temperatures, with a minimum of 11°C (51°F) and a maximum of 24°C (75°F). The rainfall dramatically decreases to 117 mm (4.6 in) while maintaining the same number of rainy days (20), but with a lower humidity level of 66%. For more detailed insights, you can check Turrialba weather in March.
In December, Turrialba experiences a mild climate with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), and an average of 18°C (64°F). This month sees significant rainfall, with 290 mm (11.4 in) over approximately 20 days, contributing to a fairly humid atmosphere at 72%.
In contrast, April offers slightly warmer temperatures, with a minimum of 12°C (55°F) and a maximum of 26°C (78°F), averaging around 19°C (66°F). Precipitation decreases to 167 mm (6.6 in) but occurs over 27 days, resulting in a marginally lower humidity level of 67%. The weather in April is generally more inviting for outdoor activities, making it a popular time to visit. For more details, you can check Turrialba weather in April.
In December, temperatures range from a mild 12°C (54°F) to a comfortable 23°C (74°F), with an average of 18°C (64°F). The month experiences significant rainfall, totaling 290 mm (11.4 in) spread over 20 days, and humidity hovers around 72%. In contrast, May sees slightly warmer temperatures, with a minimum of 14°C (58°F), an average of 20°C (67°F), and a maximum of 28°C (82°F). However, it also brings more precipitation, amounting to 468 mm (18.4 in) across 30 days, accompanied by a slightly lower humidity level of 69%. For a more detailed look at May's weather, you can visit Turrialba weather in May.
In December, the weather in Turrialba is characterized by milder temperatures, with averages ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F). The month sees considerable rainfall totaling about 290 mm (11.4 in) spread across approximately 20 days, accompanied by a humidity level of 72%. In contrast, June experiences slightly warmer temperatures, with minimums of 15°C (59°F) and maximums reaching 27°C (80°F). Rainfall in June is marginally higher at 292 mm (11.5 in), but it is spread over more days—29 in total—and the humidity increases to 84%. These differences showcase June as a warmer and wetter month compared to the milder, albeit still rainy, December. For more detailed information, check out Turrialba weather in June.
In December, Turrialba experiences mild temperatures with a minimum of 12°C (54°F) and an average of 18°C (64°F), peaking at a maximum of 23°C (74°F). The month is characterized by considerable rainfall, totaling 290 mm (11.4 in) over 20 days, coupled with a humidity level of 72%. In contrast, July sees slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 25°C (78°F), while the average remains around 19°C (67°F). The precipitation in July is somewhat lower at 254 mm (10.0 in), but it spans across 28 days, contributing to a higher humidity level of 85%. For more specific details about July weather, you can refer to Turrialba weather in July.
In December, the weather tends to be slightly cooler with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), while August sees a warmer temperature range with minimums of 15°C (59°F) and maximums reaching 26°C (79°F). December experiences more rainfall, with 290 mm (11.4 in) over 20 days, compared to August, which receives 243 mm (9.5 in) over 29 days. Additionally, humidity is higher in August at 82%, compared to December's 72%, making the latter slightly more comfortable for outdoor activities. For a closer look at what to expect during this summer month, check out Turrialba weather in August.
December and September have similar average temperatures, with December ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F) and September showing slightly higher values with a minimum of 15°C (59°F) and a maximum of 26°C (79°F). Both months experience significant rainfall, with December receiving 290 mm (11.4 in) over 20 days and September accumulating 284 mm (11.2 in) across 29 days. Interestingly, September tends to be more humid at 81%, compared to December's 72%, creating a more tropical feel during the earlier month. For a closer look at September's weather patterns, visit Turrialba weather in September.
In comparing the weather between December and October, December tends to be slightly cooler with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 23°C (74°F), while October experiences higher temperatures with a minimum of 14°C (58°F) and a maximum of 27°C (81°F). Additionally, October is characterized by significantly higher precipitation, accumulating 479 mm (18.9 in) over 30 days compared to December's 290 mm (11.4 in) over 20 days. Humidity levels are also higher in October at 80%, compared to December's 72%. For a detailed overview, you can check Turrialba weather in October.
In comparing the weather of December and November, December experiences slightly milder temperatures, with a minimum of 12°C (54°F) and an average of 18°C (64°F), compared to November's minimum of 14°C (57°F) and average of 19°C (66°F). However, November showcases a higher maximum temperature at 24°C (76°F), while December peaks at 23°C (74°F). Precipitation is more frequent in November, totaling 341 mm (13.4 in) over 27 days, compared to December's 290 mm (11.4 in) over 20 days. Additionally, November has a higher humidity level at 80%, versus December's 72%. For more detailed insights, check out Turrialba weather in November.
In December, Turrialba experiences a distinct shift in its weather patterns compared to other months, featuring milder temperatures that create a pleasant atmosphere for visitors. While the average temperature settles around a comfortable 18°C, the region is known for its increased precipitation, with significant rainfall occurring on about 20 days throughout the month. This results in a higher humidity level, enhancing the lush greenery of the surroundings. As December marks the transition into the wetter season, those looking to explore Turrialba will find a refreshing environment brimming with vibrant nature. For a more detailed overview of what to expect, check out Turrialba Climate.