Last updated: August 21, 2025
December in Zarcero, Costa Rica offers a delightful mix of mild temperatures and lush greenery. With a maximum temperature reaching 26°C (78°F) and a comfortable average of 20°C (68°F), this month is perfect for outdoor exploration. The minimum temperature dips to around 14°C (58°F), inviting cozy evenings. Rainfall is prevalent, with an average of 121 mm (4.7 in) spread over 17 days, contributing to the area's vibrant flora. Coupled with a humidity level of 74%, December's weather creates a refreshing and inviting atmosphere, making Zarcero an enchanting destination for visitors looking to experience Costa Rica's charming highland climate.
In Zarcero, Costa Rica, December ushers in a mild climate with temperatures that gracefully transition into the holiday season. The minimum temperature settles at around 14°C (58°F), providing a cool respite, while the average temperature hovers at a comfortable 20°C (68°F), perfect for outdoor exploration. The highs reach 26°C (78°F), ensuring pleasant afternoons without the sweltering heat felt in the months prior. This slight decrease in maximum temperatures from November indicates a gentle shift towards cooler evenings, creating a cozy atmosphere ideal for enjoying the local festivities. Overall, December offers a delightful blend of warmth and coolness, making it a wonderful time to experience the natural beauty and culture of Zarcero.
December in Zarcero, Costa Rica, marks a shift in the rainy season, bringing 121 mm (4.7 inches) of precipitation over 17 days. This amount is significantly lower than the torrential downpours of October, which recorded an impressive 434 mm (17.1 inches) spread over 30 days. As the year winds down, the rainfall begins to taper off, a trend that juxtaposes the heavier rains experienced in the months preceding it, particularly in May and June when precipitation peaks. December's weather sets the stage for a drier January, offering a brief reprieve before the cycle of rainfall resumes. This transition not only highlights the seasonal variability of Zarcero's climate but also provides a unique opportunity for visitors to enjoy the lush landscapes amid the milder rains.
In December, Zarcero, Costa Rica experiences a notable drop in humidity, with levels reaching 74%. This decrease follows a trend of rising moisture during the rainy season, where June to August peak at an impressive 88%. As the year progresses towards the end, humidity generally lessens after the relentless rains of mid-year, revealing a more comfortable atmosphere as visitors prepare for the holiday season. Overall, the shift from the high humidity of late summer to the more moderate levels in December highlights Zarcero's dynamic climate, making it a unique destination for those seeking to experience the lush beauty of Costa Rica under more temperate conditions.
In December, Zarcero, Costa Rica experiences a notable decline in the UV Index, dropping to 10, which falls into the very high exposure category. This marks a slight shift from the extreme levels seen throughout most of the year, where the UV Index often reached as high as 15 in April. While the burn time increases to 15 minutes, caution is still advised. This trend suggests that while December brings a more moderate UV exposure, it's essential to remain vigilant about sun protection. For detailed insights on the UV Index throughout the year, visit Zarcero UV Index.
UV Risk Categories
In Zarcero, Costa Rica, December emerges as a delightful bridge between the tranquil hues of the rainy season and the optimism of the upcoming dry months. With 261 hours of sunshine, this month shows a notable bounce back from the dimmer days of the previous months. The hours of sunlight gradually climb from 195 in July to a peak of 320 in March, revealing a clear pattern of increasing brightness that culminates in the lively atmosphere of December. As the year draws to a close, the skies in Zarcero not only bask in golden rays but also set the stage for vibrant celebrations and the lush landscapes that characterize this enchanting region. With each week, the feeling of warmth and light grows, inviting both locals and travelers to revel in the beauty of a Costa Rican winter.
In Zarcero, Costa Rica, December brings a refreshing increase in sunny weather, with the chance of sunshine rising to 33%. This marks a notable shift from the preceding months, where opportunities for clear skies dwindle significantly, particularly during the rainy season from May to October. Not only does December rekindle a glimmer of sun that starts to rival the earlier months of the year, like January through March at 32%, but it also offers a welcome respite as locals and travelers alike enjoy the cooler and drier climate. As the year draws to a close, December stands out as a promising time for those looking to bask in the sun in this picturesque region.
In Zarcero, Costa Rica, daylight duration exhibits a captivating rhythm throughout the year. Starting the year with 11 hours of daylight in both January and February, the duration gradually increases to a peak of 12 hours from March to September, creating a generous window for outdoor activities. As autumn approaches in October, the daylight dips back to 11 hours, settling into a cozy pattern that persists through November and December. This cyclical change showcases a blend of consistency and variation, allowing residents and visitors alike to enjoy the lush landscapes and vibrant culture under the sun’s embrace year-round.
As December descends upon Zarcero, Costa Rica, the breeze begins to pick up slightly, averaging 2.6 m/s (6 mph)—a refreshing contrast to the year’s previous months. This increase is notable when compared to the calmer winds of June and August, which saw lows of 1.4 m/s (3 mph) and 1.3 m/s (3 mph), respectively. The transition into December also marks a departure from the year's minimum wind speeds, reviving the atmosphere as it flurries through the vibrant landscapes. Overall, December's gentle yet invigorating winds set the stage for the lush greenery of the new year, as the region breathes a sigh of relief from the more stagnant summer months.
Weather in Zarcero varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Zarcero, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally warmer and more humid, with average temperatures ranging from 14°C (58°F) to a high of 26°C (78°F) and a notable humidity level of 74%. The month also experiences significant rainfall, totaling 121 mm (4.7 in) over 17 days. In contrast, January sees slightly cooler temperatures, with minimums of 13°C (55°F) and maximums reaching 27°C (80°F), while average humidity decreases slightly to 71%. Additionally, January is much drier, with only 67 mm (2.7 in) of precipitation across 10 days. For more details, check out Zarcero weather in January.
In December, the weather tends to be warm with average temperatures around 20°C (68°F), peaking at a maximum of 26°C (78°F). However, this month also brings considerable rainfall, with 121 mm (4.7 in) of precipitation spread over 17 days and a relatively high humidity of 74%.
Conversely, February offers slightly cooler nighttime temperatures with a minimum of 12°C (55°F) but warms up to an average of 20°C (68°F) and can reach as high as 28°C (83°F). The month is much drier, featuring only 28 mm (1.1 in) of precipitation over 9 days and a lower humidity level of 70%. For more detailed insights, you can visit Zarcero weather in February.
In December, the weather typically features a minimum temperature of 14°C (58°F) and averages around 20°C (68°F), peaking at a maximum of 26°C (78°F). This month also sees significant precipitation, with 121 mm (4.7 in) falling across 17 days and maintaining a humidity level of 74%. In contrast, March experiences slightly cooler temperatures, with a minimum of 13°C (56°F), an average of 20°C (69°F), and a higher maximum of 28°C (82°F). Precipitation in March is considerably lower at 38 mm (1.5 in) over just 10 days, and humidity drops to 68%. For a more detailed look at March weather, visit Zarcero weather in March.
In December, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), with an average temperature of 20°C (68°F). The month sees significant precipitation, totaling 121 mm (4.7 in) over 17 days, and a relatively high humidity level of 74%. In contrast, April experiences slightly warmer temperatures, with a minimum of 15°C (59°F) and maximum reaching 29°C (85°F), along with an average of 21°C (71°F). Nonetheless, April has less precipitation at 92 mm (3.6 in) over 19 days, and humidity is marginally lower at 69%. For more details, you can check Zarcero weather in April.
In December, Zarcero experiences relatively mild conditions with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), averaging around 20°C (68°F). The month sees significant rainfall, with a total of 121 mm (4.7 in) over approximately 17 days, coupled with a humidity level of 74%. In contrast, May is slightly warmer, with temperatures ranging from a low of 16°C (61°F) to a high of 29°C (85°F) and an average of 21°C (71°F). However, it is also the wettest month, receiving 306 mm (12.0 in) of precipitation across 29 days, while humidity remains lower at 70%. For a detailed look at local conditions, you can refer to Zarcero weather in May.
In December, temperatures in Zarcero range from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), with an average of 20°C (68°F). The month experiences moderate humidity at 74% and a total precipitation of 121 mm (4.7 in) over 17 days. In contrast, June brings slightly warmer temperatures, with a minimum of 16°C (62°F) and a maximum of 28°C (82°F), averaging 21°C (71°F). However, June is significantly wetter, with total precipitation reaching 268 mm (10.6 in) spread across 28 rainy days and higher humidity at 81%. For more detailed information, check out Zarcero weather in June.
In December, the weather is generally warm, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (78°F) and an average of 20°C (68°F). The month experiences moderate rainfall, totaling 121 mm (4.7 in) over 17 days, and humidity levels are around 74%. In contrast, July is slightly warmer, with temperatures varying from a minimum of 17°C (63°F) to a maximum of 27°C (81°F) and an average of 21°C (70°F). However, July sees significantly more precipitation, with total rainfall of 241 mm (9.5 in) falling over 28 days, and it comes with higher humidity at 88%. For more specifics on the weather patterns, you can check out Zarcero weather in July.
When comparing the weather in December and August, we see notable differences in both temperature and precipitation. December experiences milder temperatures, with lows around 14°C (58°F) and highs reaching 26°C (78°F), while August tends to be slightly warmer, with minimum temperatures of 16°C (62°F) and maximums of 29°C (84°F). In terms of moisture, December brings 121 mm (4.7 in) of rain over 17 days, while August is significantly wetter, with 273 mm (10.8 in) of rainfall distributed over 29 days. Additionally, humidity levels are higher in August at 85%, compared to December's 74%. For a more detailed look at August weather in Zarcero, you can visit Zarcero weather in August.
December and September exhibit notable differences in weather patterns. In December, the temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), with an average of 20°C (68°F). This month experiences lower precipitation at 121 mm (4.7 in) over 17 days, and the humidity level is around 74%. In contrast, September tends to be slightly warmer, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 28°C (83°F) and an average of 21°C (70°F). However, it experiences much heavier rainfall, totaling 288 mm (11.3 in) across 29 days, accompanied by higher humidity at 84%. For a more detailed look at September weather in this region, visit Zarcero weather in September.
When comparing the weather in December to that of October, December tends to be slightly warmer with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (78°F), while October features a narrower range with minimums of 16°C (61°F) and maximums of 27°C (81°F). In terms of precipitation, October experiences significantly more rainfall, totaling 434 mm (17.1 in) over 30 days, compared to December's 121 mm (4.7 in) spread over 17 days. Additionally, humidity remains higher in October at 82%, contrasted with December's 74%. For a closer look at October's weather patterns, you can visit Zarcero weather in October.
In comparing the weather of December and November, December shows a slight increase in minimum temperatures, with averages remaining consistent, while the maximum temperatures are nearly identical. However, December is notably drier, recording 121 mm of precipitation over 17 days compared to November's much wetter pattern of 228 mm over 26 days. Additionally, humidity levels drop slightly in December to 74%, compared to November’s 81%. For more detailed information, you can check Zarcero weather in November.
December in Zarcero brings a delightful shift in weather, setting itself apart from the other months. With a pleasing average temperature that hovers around 20°C (68°F), the month feels pleasantly warm, contrasting with the cooler mornings that drop to 14°C (58°F). It's a month characterized by frequent rainfall, with approximately half the days experiencing some precipitation, leading to a higher humidity level of 74%. This combination of warmth and wetness not only enhances the lush landscapes of Zarcero but also creates a vibrant atmosphere that invites exploration. For a detailed look at the overall climate, check out Zarcero Climate.