Last updated: August 21, 2025
La Fortuna, Costa Rica, experiences captivating weather in December, offering a maximum temperature of 29°C (84°F) and an average of 23°C (73°F) that invites exploration. Visitors can expect cooler evenings, with temperatures dipping to a minimum of 17°C (63°F). The month brings 180 mm (7.1 in) of rain spread over 22 days, creating a lush, vibrant landscape, ideal for enjoying the region's natural beauty. With an average humidity of 74%, the air feels refreshing yet invigorating, making December a delightful time to discover the charm of La Fortuna.
In December, La Fortuna, Costa Rica offers a delightful climate that encapsulates the charm of the dry season. With minimum temperatures around 17°C (63°F), visitors can expect mild, pleasant evenings, while the average temperature hovers at a comfortable 23°C (73°F), perfect for outdoor explorations. During the day, the maximum temperature reaches up to 29°C (84°F), allowing for plenty of sunshine and ideal conditions for enjoying the region’s stunning natural beauty. As the year wraps up, December brings a slight dip in temperature compared to the hotter months, maintaining a consistently pleasant ambiance that invites adventurous activities like hiking, soaking in hot springs, and embarking on wildlife excursions. Overall, it's a fantastic time to experience La Fortuna's lush landscapes and vibrant ecosystems.
In La Fortuna, Costa Rica, December marks a pivotal transition in the region's weather patterns. With 180 mm (7.1 in) of rainfall spread over 22 days, the precipitation tapers off from the intense wetness of previous months, such as October's peak of 398 mm (15.7 in), which is often characterized by nearly constant rain. This month offers a respite with fewer rainy days compared to the torrential summer months, yet still provides sufficient moisture to keep the lush landscape vivid. As the year ends, visitors can enjoy a blend of damp beauty and vibrant scenery, making December a unique time to experience the tantalizing allure of La Fortuna’s rainforests and waterfalls.
In La Fortuna, Costa Rica, December ushers in a notable shift in humidity levels, averaging around 74%, a respite from the peak moisture experienced in the preceding months. This decrease follows months of heightened humidity, with July reaching its zenith at a steamy 88%. As the year progresses from January’s 71% through June’s 81%, visitors can expect a gradual rise in humidity during the rainy season, culminating in mid-year's high. However, by December, the air becomes slightly drier, providing an inviting atmosphere for those looking to explore this lush paradise before entering the dry season. As such, December offers a balanced blend of warmth and moisture, ideal for unwinding amid the stunning landscapes of La Fortuna.
In December, La Fortuna, Costa Rica experiences a UV Index of 10, categorizing it as very high, with a burn time of 15 minutes. This marks a slight decrease from the extreme levels seen in the preceding months, where the UV Index consistently ranged between 12 and 15. Despite the reduced intensity, it's crucial for visitors to remain vigilant with sun protection during this month. The trend shows that throughout the year, particularly from March to May, UV levels peak, warranting extra caution for sun exposure. For more details about UV levels and recommendations, check out the La Fortuna UV Index.
UV Risk Categories
In La Fortuna, Costa Rica, December shines bright with 303 hours of sunshine, making it a delightful time to visit. As the year draws to a close, this month stands out with a remarkable surge in sunny days, following a rejuvenating rainy season. Compared to the preceding months, December's sunlight nearly rivals peak periods like March, which boasts an impressive 330 hours. This trend highlights a gradual climb in daylight as we transition from the wet months of October and November, both of which, while generous in their 269 and 232 hours of sunshine respectively, cannot quite match the vibrant warmth of December. Embrace this glorious month and bask in the sun that heralds the festive season, making it an ideal time for outdoor adventures in this stunning corner of the world.
In La Fortuna, Costa Rica, December offers a refreshing contrast to the increasing cloud cover that characterizes the following months. With a 38% chance of sunny weather, it's one of the more promising months for enjoying the region's breathtaking landscapes and outdoor activities. As the year winds down, you'll notice a slight recovery in sunshine compared to the dreary weeks of heavy rain from June to November, where chances fell as low as 7%. This uptick suggests an emerging balance as December approaches, making it an appealing time for travelers eager to soak in the beauty of this tropical paradise. While not quite as sunny as the peak months of January and February, December still provides a pleasant opportunity to embrace La Fortuna's natural wonders before the dry season fully takes hold.
In La Fortuna, Costa Rica, the daylight duration exhibits a fascinating pattern throughout the year. From January to April, the days gradually lengthen from 11 to 12 hours, creating a delightful transition that signals the onset of the dry season. This period of increased sunlight continues consistently through the summer months until October, where daylight hours begin to recede back to 11 hours in time for the rainy season. Interestingly, the trend culminates in a cycle that notably returns to 11-hour days in both November and December, providing a sense of continuity and rhythm to the lush tropical climate. This stability in daylight makes La Fortuna an inviting destination for year-round exploration, with a reliably pleasant mix of sun and shadows.
As December arrives in La Fortuna, Costa Rica, the winds begin to pick up, averaging a pleasant 2.9 m/s (7 mph). While earlier months like June and August experience their calmest days, December ushers in a refreshing breeze that hints at the transition towards the drier season. The wind speeds, which had dipped to their lowest in the mid-year months, now show a gentle upward trend, reminiscent of January and February's consistent 3.2 m/s. This change not only invigorates the lush landscapes but also sets the stage for a vibrant holiday atmosphere, inviting visitors to explore the natural wonders that La Fortuna has to offer.
Weather in La Fortuna varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in La Fortuna, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January weather shows some similarities but also notable differences. In December, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average of 23°C (73°F). The month experiences significantly more rainfall, totaling 180 mm (7.1 in) over 22 days, and has a humidity level of 74%. In contrast, January sees slightly lower temperatures with a minimum of 16°C (61°F) and an average of 22°C (72°F), while still reaching up to 29°C (84°F). The precipitation is reduced to 99 mm (3.9 in) across just 13 days, and humidity decreases to 71%. For more detailed insights, you can check La Fortuna weather in January.
In comparing December and February weather, we see some notable differences despite similar average temperatures. December tends to be wetter, with 180 mm of precipitation over 22 days, resulting in a higher humidity level of 74%. In contrast, February experiences much drier conditions, with only 23 mm of rainfall occurring over just 5 days and slightly lower humidity at 70%. Additionally, February boasts warmer maximum temperatures, reaching up to 31°C (88°F), compared to December's peak of 29°C (84°F). For more specific details, check out La Fortuna weather in February.
In December, the weather features a warm range of temperatures, with minimums around 17°C (63°F) and maximums reaching up to 29°C (84°F). The month experiences significant rainfall, averaging 180 mm (7.1 in) across 22 days, contributing to a humidity level of 74%. In contrast, March presents slightly warmer conditions with maximum temperatures peaking at 30°C (87°F), while still maintaining a minimum of 17°C (63°F) and an average of 23°C (74°F). Notably, March sees much less precipitation, with only 28 mm (1.1 in) over just 6 days, leading to a decreased humidity of 68%. For more details on the weather specifics in March, you can visit La Fortuna weather in March.
In December, the weather features a slightly lower average temperature of 23°C (73°F) with a maximum of 29°C (84°F), accompanied by higher humidity at 74%. This month sees substantial rainfall, with around 180 mm (7.1 in) spread over 22 days, creating a lush and vibrant landscape. In contrast, April experiences warmer temperatures, reaching an average of 24°C (76°F) and a high of 32°C (90°F), while benefiting from significantly less rain, totaling only 72 mm (2.8 in) across 13 days. The humidity decreases to 69%, contributing to a drier feel. For a detailed look at the weather specifics in April, you can visit La Fortuna weather in April.
December and May present distinct weather patterns. December typically boasts milder temperatures, with a range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F) and an average of 23°C (73°F). However, this month is quite wet, receiving approximately 180 mm (7.1 in) of rainfall over 22 days, leading to a high humidity of around 74%. In contrast, May experiences slightly warmer temperatures, with a minimum of 19°C (67°F) and a maximum reaching 32°C (91°F), averaging 24°C (76°F). Rainfall is more abundant in May, totaling around 308 mm (12.1 in) over 26 days, yet humidity remains relatively stable at 70%. For a closer look at the specifics of May weather in La Fortuna, check out La Fortuna weather in May.
December and June present distinct weather patterns that highlight the tropical climate of the region. In December, temperatures range from a mild 17°C (63°F) to a warm 29°C (84°F), with an average of 23°C (73°F). However, the month experiences significant precipitation, totaling 180 mm (7.1 in) across 22 rainy days, alongside a humidity level of 74%.
In contrast, June is typically warmer, with minimum temperatures starting at 20°C (68°F) and peaking at 31°C (88°F), averaging around 24°C (76°F). This month also sees a higher precipitation level of 312 mm (12.3 in) over 29 days, and humidity rises to 81%. For a more detailed look at the weather in June, you can visit La Fortuna weather in June. Overall, while both months are characterized by considerable rainfall, June tends to be warmer and wetter, making it a vibrant yet humid time in the region.
In December, the weather features a warm average temperature of around 23°C (73°F), with daytime highs reaching 29°C (84°F) and nighttime lows of 17°C (63°F). This month experiences considerable rainfall, averaging 180 mm (7.1 in) over 22 days, accompanied by a humidity level of 74%. In contrast, July is slightly warmer, with average temperatures of 24°C (75°F) and highs peaking at 30°C (87°F). However, it also brings more rainfall, with 253 mm (10.0 in) spread over 28 days and a higher humidity of 88%. The increased precipitation in July often leads to more overcast skies. For more details, check out La Fortuna weather in July.
In comparing the weather between December and August, we see notable differences in temperature, precipitation, and humidity levels. December typically features milder temperatures, with a minimum of 17°C (63°F) and an average of 23°C (73°F), while August experiences slightly warmer conditions, with a minimum of 20°C (68°F) and an average of 24°C (75°F). Precipitation is considerably higher in August, with 295 mm (11.6 in) falling over 29 days, compared to December's 180 mm (7.1 in) over 22 days. Additionally, humidity levels peak in August at 85%, compared to 74% in December, making August feel more humid and damp. For more details on the weather in August, you can visit La Fortuna weather in August.
When comparing December and September weather, December tends to be slightly cooler, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), while September is typically hotter, with averages between 20°C (68°F) and 31°C (88°F). In terms of precipitation, September is much wetter, receiving 277 mm (10.9 in) over 29 days, compared to December's 180 mm (7.1 in) spread across 22 days. Humidity levels are also higher in September at 84% versus December's 74%. For more detailed information, you can check La Fortuna weather in September.
In comparing the weather between December and October, December tends to be slightly warmer on average, with average temperatures around 23°C (73°F) compared to October's average of 24°C (75°F). However, December experiences a lower minimum temperature of 17°C (63°F) compared to October's minimum of 20°C (67°F). Additionally, December has significantly less rainfall, with 180 mm (7.1 in) of precipitation over 22 days, whereas October sees a much higher precipitation of 398 mm (15.7 in) over 29 days. Humidity levels are also higher in October at 82%, compared to 74% in December. For more specifics on October weather patterns, you can check this link: La Fortuna weather in October.
In comparing the weather of December to November, both months exhibit a similar average temperature of around 23°C (73°F), but December experiences slightly cooler minimum temperatures, with a low of 17°C (63°F) compared to November's 19°C (66°F). Additionally, December sees a reduction in precipitation, accumulating 180 mm (7.1 in) over 22 days, while November has a higher total of 259 mm (10.2 in) spread across 27 days. Humidity levels also drop in December to 74%, down from November's 81%, indicating a somewhat drier atmosphere as the year concludes. For a more detailed look at November's weather, you can check La Fortuna weather in November.
In December, La Fortuna experiences a refreshing shift in weather, offering warm temperatures that average around 23°C (73°F), which can feel particularly inviting after the cooler, rainy months. With high humidity at 74% and precipitation spread across roughly 22 days, visitors can expect a lush, vibrant landscape, though occasional showers are part of the experience. This month marks the transition towards the dry season, making it an enchanting time to explore the region’s natural beauty. For a deeper insight into the climate patterns, check out La Fortuna Climate.