Last updated: August 21, 2025
December in Samara, Costa Rica offers a warm tropical climate, where maximum temperatures soar to 32°C (90°F), while the average hovers around a comfortable 26°C (78°F). As the year draws to a close, expect pleasant nights with temperatures dipping to a minimum of 20°C (68°F). Rainfall is moderate, with an accumulation of 49 mm (1.9 in) spread over about 10 days, contributing to the lush landscape. Humidity remains at a notable 72%, enhancing the tropical experience and making this idyllic destination a captivating spot for visitors seeking sunshine interspersed with refreshing rain.
In December, Samara, Costa Rica experiences a delightful blend of warmth and tropical charm, with temperatures that typically range from a minimum of 20°C (68°F) to a comfortable maximum of 32°C (90°F). This month marks a transition as the rainy season begins to wane, allowing for an average temperature of 26°C (78°F), which is ideal for beach outings and exploring the vibrant surroundings. Compared to the preceding months, December's warmth mirrors the patterns of earlier in the dry season, promising plenty of sunshine while still retaining a touch of humidity. As the festive season approaches, the pleasant climate invites both locals and visitors alike to revel in outdoor festivities against a backdrop of stunning sunsets and inviting ocean breezes.
In December, Samara, Costa Rica experiences a notable decrease in precipitation, with an average of 49 mm (1.9 in) over approximately 10 days of rain. This marks a significant dip from the preceding months, particularly from May through October, when the region is often drenched in heavy rains, peaking at 514 mm (20.2 in) in October. The tapering off of rainfall in December indicates a transition into the drier season, offering a reprieve from the intense downpours of the wet months. As the year draws to a close, this gradual decline not only signals a shift in weather patterns but also sets the stage for the vibrant beauty of Samara's dry season.
In December, Samara, Costa Rica, experiences a humidity level of 72%, marking a slight increase compared to the previous months. This is part of a consistent trend where humidity remains relatively stable throughout the year, with values hovering between 70% and 79%. The peak humidity arrives during the rainy season, observable in June and July at 79%, while the drier months of January through April maintain a more moderate range between 71% and 72%. As December transitions into the wetter months, visitors can expect a warm, humid atmosphere typical of this tropical paradise, inviting them to embrace the lush beauty that defines the region.
In December, Samara, Costa Rica experiences a very high UV Index of 10, indicating that while sun exposure remains significant, it's slightly less intense than the extreme levels seen in the preceding months. From January to November, the UV Index consistently ranged between 11 and 14, categorizing the exposure as extreme, with the burn time firmly set at just 10 minutes. This trend highlights a sustained risk for sunburn throughout the year, particularly in the early months when visitors must be especially cautious. As December arrives, the burn time increases to 15 minutes, providing a brief respite for sun-seekers. Whether you're lounging on the beach or exploring the vibrant surroundings, it's essential to stay protected. For more detailed information on UV levels throughout the year, visit Samara UV Index.
UV Risk Categories
As the year winds down, December in Samara, Costa Rica boasts an impressive 322 hours of sunshine, marking a delightful close to a year of varied light. Notably, the sun begins to shine more generously during this month, following a trend of increasing daylight from October's 251 hours, while eclipsing November’s 296 hours. This upward trajectory reflects the region's transition into its dry season, making December an ideal time for outdoor adventures and beach relaxation. The sun-soaked days are a striking contrast to the slightly cloudier earlier months, portraying Samara not only as a tropical haven but also as a destination where sunshine reigns supreme as the year comes to a close.
When considering the likelihood of sunny weather in December in Samara, Costa Rica, you'll be greeted with a promising 61% chance of sunshine. This marks a notable increase from the rainy months preceding it, particularly when compared to April and May, which plummet to just 25% and 20% respectively. Notably, December emerges as a favorable time to visit, closely following the trends from January and February, which both enjoy over 57% sunny days. As the year winds down, travelers can look forward to a beautiful transition into the dry season, making December a prime time for fun in the sun.
In Samara, Costa Rica, the daylight duration is relatively consistent throughout the year, highlighting the region's tropical climate. During the month of December, the sun graces the sky for about 11 hours each day, mirroring the shorter daylight months of October and November. As the year progresses from January to August, daylight extends to a peak of 12 hours, creating an inviting atmosphere for outdoor activities and exploration. This steady pattern of daylight offers both locals and visitors a reliable rhythm, with slightly reduced daylight in the latter months of the year, lending a cozy ambiance to the festive season.
As December arrives in Samara, Costa Rica, the wind begins to whisper its gentle presence, with an average speed of 1.9 m/s (4 mph). This slight dip from November's 2.0 m/s marks the transition into the quieter end of the year. Throughout the preceding months, wind speeds fluctuated, reaching a peak of 2.6 m/s (6 mph) in March before settling into a more subdued rhythm in the latter half of the year. Despite the calm that accompanies December, the consistent coastal breeze offers a refreshing touch, inviting both locals and visitors to embrace the serene beauty of the season. This undulating pattern of wind serves as a reminder of nature's ebb and flow, creating a picturesque backdrop for holiday festivities and peaceful beach days alike.
Weather in Samara varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Samara, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January share similar average temperatures, with December ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), while January sees slightly cooler minimums at 17°C (63°F) and warmer maximums reaching up to 34°C (93°F). December experiences more precipitation, averaging 49 mm (1.9 in) over 10 days, whereas January is drier, with only 18 mm (0.7 in) falling over just 3 days. Both months maintain a consistent humidity level of 72%, offering a tropical feel throughout. For a more detailed look at January weather, you can visit Samara weather in January.
December and February exhibit somewhat similar weather patterns, but with distinct differences. In December, temperatures range from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 26°C (78°F). The month experiences more precipitation, totaling 49 mm (1.9 in) over 10 days, and a humidity level of 72%. In contrast, February enjoys slightly warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 35°C (95°F), averaging 27°C (81°F). Notably, February is much drier, with only 5 mm (0.2 in) of precipitation over just 1 day, and a humidity level of 71%. For more details on February weather, you can refer to Samara weather in February.
In December, the weather is warm yet slightly cooler than in March, with minimum temperatures around 20°C (68°F) and average highs reaching 32°C (90°F). Rainfall is more frequent during this month, totaling 49 mm (1.9 in) over about 10 days, contributing to a humidity level of 72%. In contrast, March sees a rise in temperatures, with average highs peaking at 35°C (95°F) and average temperatures around 27°C (82°F). Additionally, March experiences significantly less precipitation, with only 12 mm (0.5 in) over just 2 days, accompanied by a humidity level of 70%. For more details on the specific weather conditions during this month, you can visit Samara weather in March.
In December, the weather showcases warm temperatures, with a minimum of 20°C (68°F) and an average of 26°C (78°F), reaching a maximum of 32°C (90°F). The month typically experiences about 49 mm (1.9 in) of precipitation over approximately 10 days, with humidity levels around 72%. In contrast, April sees slightly higher temperatures, with a minimum of 21°C (71°F), an average of 27°C (81°F), and a maximum soaring to 35°C (96°F). However, April brings a significant increase in rainfall, totaling 130 mm (5.1 in) across about 22 days, while maintaining a similar humidity level at 71%. For more detailed insights regarding April weather, you can visit Samara weather in April.
December and May present contrasting weather experiences. In December, temperatures range from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 26°C (78°F). The month sees about 49 mm (1.9 in) of precipitation over 10 days, coupled with a humidity level of 72%. In comparison, May is slightly warmer, with a minimum of 21°C (71°F) and a higher maximum of 34°C (93°F), while maintaining an average of 26°C (79°F). However, May is significantly wetter, receiving 442 mm (17.4 in) of rain over 30 days, and the humidity remains relatively stable at 71%. For more insights on the weather in May, you can check Samara weather in May.
In December, the weather in Samara features a minimum temperature of 20°C (68°F) and an average of 26°C (78°F), with a maximum hitting 32°C (90°F). The month experiences relatively moderate precipitation of 49 mm (1.9 in) over about 10 days, and humidity levels hover at 72%. In contrast, June sees slightly warmer nights with a minimum of 22°C (71°F), while maintaining the same average temperature of 26°C (78°F) and a maximum of 32°C (91°F). However, June is much wetter, with a staggering 498 mm (19.6 in) falling across 29 days, leading to higher humidity at 79%. For more details on the weather in June, you can check out Samara weather in June.
In comparing the weather between December and July, we see some intriguing differences. December features a more pleasant climate with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), accompanied by moderate humidity at 72% and relatively low precipitation of 49 mm (1.9 in) over about 10 days. In contrast, July exhibits slightly warmer nighttime temperatures starting at 21°C (71°F), but maintains the same maximum temperature of 32°C (90°F). However, July is significantly wetter, with a staggering 331 mm (13.0 in) of rain spread over 28 days and an increase in humidity to 79%. For a detailed look at weather conditions in July, you can check Samara weather in July.
When comparing the weather in December and August, several notable differences emerge. December typically experiences milder temperatures, with a minimum of 20°C (68°F), an average of 26°C (78°F), and a maximum of 32°C (90°F). In contrast, August tends to be slightly warmer with a minimum of 22°C (72°F) and a peak of 33°C (92°F). Precipitation levels are significantly higher in August, with 417 mm (16.4 in) over 29 days, compared to December's 49 mm (1.9 in) across just 10 days. Humidity levels remain comparable, with December at 72% and August at 75%. For more detailed insights on the climate, you can visit Samara weather in August.
In December, the weather in Samara exhibits a warmer yet slightly drier climate than in September. With temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), the average stays comfortable at 26°C (78°F). Precipitation is significantly lower, totaling 49 mm (1.9 in) over about 10 days, and humidity hovers at 72%. In contrast, September experiences a milder minimum temperature of 22°C (71°F) and a maximum of 32°C (91°F), but it sees much heavier rainfall, accumulating 440 mm (17.3 in) across an average of 29 days and a similar humidity level of 73%. For a closer look at what to expect, check Samara weather in September.
When comparing the weather in December and October, December tends to be slightly warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), while October has a higher minimum temperature of 22°C (71°F) and a slightly lower average of 25°C (77°F). Precipitation is significantly lower in December, averaging just 49 mm (1.9 in) over 10 days, compared to a much wetter October, which sees 514 mm (20.2 in) over 30 days. Both months maintain similar humidity levels, with December at 72% and October at 73%. For a more detailed look at October's weather patterns, check out Samara weather in October.
In comparing the weather of December to that of November, December generally presents slightly warmer temperatures, with a minimum of 20°C (68°F) and an average of 26°C (78°F), compared to November's minimum of 21°C (70°F) and average of 25°C (78°F). However, while December experiences less rainfall at 49 mm (1.9 in) over 10 days, November is significantly wetter, accumulating 214 mm (8.4 in) over 25 days. Humidity levels remain relatively similar, with December at 72% and November at 74%. For a more detailed look at November's weather, you can refer to Samara weather in November.
As December unfolds in Samara, the weather reveals a delightful shift compared to earlier months. You'll experience warmer temperatures averaging around 26°C (78°F), with peaks reaching an inviting 32°C (90°F), perfect for beach activities and outdoor adventures. While humidity remains relatively high at 72%, this cozy atmosphere is accompanied by some refreshing rains, totaling about 49 mm over approximately 10 days. This transitional month beckons visitors with its vibrant essence and lush landscapes, making it an ideal time to explore tropical wonders. For more details on the climate and how it shapes your visit, check out Samara Climate.