Last updated: August 21, 2025
January in La Fortuna, Costa Rica, offers a delightful tropical experience, with average temperatures around 23°C (74°F) and maximums soaring to 30°C (87°F). Visitors can expect a refreshing atmosphere, tempered by an average minimum of 14°C (58°F). While the month sees about 42 mm (1.6 in) of rain over approximately 11 days, the lush landscapes remain vibrant and inviting. The air carries a pleasant humidity level of 66%, enhancing the region's renowned natural beauty. This is the perfect time to explore the rich biodiversity and spectacular waterfalls that define La Fortuna.
In January, La Fortuna, Costa Rica, welcomes visitors with a delightful climate characterized by mild temperatures. The month starts with a comfortable minimum of 14°C (58°F), gradually warming to an inviting average of 23°C (74°F), peaking at a pleasant 30°C (87°F). This early part of the year marks the tail end of the dry season, creating the perfect backdrop for outdoor adventures amidst lush landscapes and vibrant wildlife. As the month progresses and transitions into February, temperatures notably rise, with minimums starting at 17°C (63°F) and maximums soaring to 33°C (91°F). This gradual warming trend continues through March and April, reaching highs of 34°C (93°F), showcasing the region’s shift towards more humid conditions. The overall pattern indicates a move from the cooler, pleasant beginnings of the year to the warmer and more humid climate typical of La Fortuna, making January an ideal time for exploration before the heat intensifies.
In January, La Fortuna experiences a moderate precipitation total of 42 mm (1.6 in), falling across approximately 11 days of the month. This marks a transition from the significant rainfall typical of later months, such as May and June, which see sharp increases in both precipitation and the number of rainy days. Compared to February, where rainfall drops noticeably to 18 mm (0.7 in) over just 6 days, January serves as a bridge towards the drier season. However, the subsequent months, particularly from April onward, exhibit a dramatic uptick in rainfall, culminating in the peak wet months of May and June where totals soar above 300 mm. This pattern highlights La Fortuna's distinct tropical climate, characterized by its dry spells in early the year, followed by an intensification of rainfall as the months progress.
In January, La Fortuna, Costa Rica experiences a comfortable humidity level of 66%, setting the tone for the early year. As the weeks progress into February and March, humidity slightly decreases to 64% and 63%, respectively, offering a refreshing respite as the dry season takes hold. However, as April and May roll in, humidity remains stable at 63%, maintaining that pleasant, tropical feel. The climate begins to shift dramatically by June, where humidity surges to 74%, signaling the onset of the rainy season. This upward trend continues through the summer months, peaking in July at a substantial 85%, and stays high with August and September hovering around 82% and 80%. As the year winds down, humidity gradually decreases again, with October and November both at 79%, before dipping to 70% in December. This cyclical pattern beautifully illustrates La Fortuna's transition from the drier, cooler months to the lush, wetter season, creating an inviting environment for nature enthusiasts year-round.
In January, La Fortuna, Costa Rica experiences a highly intense UV Index of 11, categorizing its sun exposure as extreme, which means you could suffer sunburn in just 10 minutes. This trend of extreme UV levels continues through the months, peaking in April at 14 and 15, making it crucial for visitors to take necessary precautions to protect their skin. Even as the year progresses, the UV Index remains consistently high, with levels ranging between 11 to 15 until November, when it drops slightly to 11, and further to 10 in December, indicating very high exposure but allowing for a longer burn time of 15 minutes. Staying informed and prepared is vital in this stunning tropical paradise; for detailed guidance, check La Fortuna UV Index.
UV Risk Categories
In January, La Fortuna basks in 256 hours of sunshine, setting the tone for a spectacular year ahead. As the months progress, the sun's embrace intensifies, peaking in March with 333 hours of glorious rays. This vibrant trend continues into April, where the hours only slightly dip to 320, hinting at an inviting climate for adventure. However, as early summer approaches, sunshine remains abundant with 299 hours in February and 300 hours in July, making these months particularly enticing. The year then transitions into a softer glow with 230-270 hours through the remaining months, suggesting that while the intensity wanes, the allure of La Fortuna's enchanting landscape remains ever captivating. Whether you're seeking vibrant sunshine or the lush rainforests, this charming destination offers a beautiful balance throughout the year.
In La Fortuna, Costa Rica, January boasts a 34% chance of sunny weather, making it a promising start to the year for those seeking to soak up the sun. This figure is relatively modest compared to February, which sees an increase to 47%, marking the peak of sunny opportunities as the dry season unfolds. Following February, the likelihood of clear skies remains reasonably high in March at 43% but begins to dip sharply in April to 24%. As the rainy season approaches from May onwards, the chance of sunny weather dwindles significantly, with July and August seeing a mere 16% and 7%, respectively. Thus, early in the year presents the best chance for sun-soaked adventures in this tropical paradise, while the latter months tend to be cloudier and wetter.
In La Fortuna, Costa Rica, January offers a delightful 11 hours of daylight, a setting that remains consistent through February. As the days stretch into March, a gradual increase unfolds, providing 12 hours of daylight from March through October. This extended daylight period invites visitors to bask in the natural beauty and rich biodiversity that the region is famous for. However, as the year winds down, daylight begins to wane again, returning to 11 hours in November and December. This rhythmic cycle of daylight not only enhances the allure of La Fortuna's stunning landscapes but also provides a sense of balance and predictability within the tropical climate.
In January, La Fortuna enjoys a gentle breeze with an average wind speed of 3.7 m/s (8 mph), setting a pleasant tone for the start of the year. This consistent breeze continues into February, maintaining the same delightful pace. However, as we transition into March, the winds pick up slightly, reaching 4.0 m/s (9 mph), hinting at the approach of warmer days ahead. As spring unfolds, wind speeds begin to wane, dipping to 2.8 m/s (6 mph) in April and further to 2.7 m/s (6 mph) in May. The summer months bring a noticeable calm, with June seeing the lowest annual wind speed at 1.8 m/s (4 mph), while July and August experience a slight increase, albeit still gentle at 2.5 m/s (6 mph) and 1.5 m/s (3 mph), respectively. As the year draws to a close, November witnesses a revival in wind activity, reaching 2.8 m/s (6 mph), and December ends the year on a high note with a refreshing 3.4 m/s (8 mph) breeze. Overall, January serves as a lovely beginning, leading to a dynamic shift through the seasons, reflecting the rhythmic dance of wind that characterizes La Fortuna's enchanting climate.
Weather in La Fortuna varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in La Fortuna, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February exhibit some noticeable differences in weather patterns. January tends to be slightly cooler, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 30°C (87°F) and an average of 23°C (74°F). In contrast, February experiences warmer conditions, with a minimum temperature of 17°C (63°F), an average of 24°C (75°F), and a maximum reaching 33°C (91°F). Additionally, February has significantly less precipitation, totaling only 18 mm (0.7 in) over 6 days, compared to January's 42 mm (1.6 in) over 11 days. Humidity levels remain relatively similar, with January at 66% and February slightly lower at 64%. For more details, check out La Fortuna weather in February.
In January, temperatures in La Fortuna range from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), with an average temperature of 23°C (74°F). The month experiences around 42 mm (1.6 in) of precipitation over 11 days, contributing to a relatively humid environment with 66% humidity. In contrast, March sees a slight increase in temperature, with a minimum of 18°C (64°F), an average of 24°C (76°F), and a maximum of 33°C (91°F). Precipitation decreases significantly to 19 mm (0.8 in) over just 6 rainy days, resulting in lower humidity at 63%. For more detailed information, check La Fortuna weather in March.
In January, the weather is generally mild, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), averaging around 23°C (74°F). The month experiences about 42 mm (1.6 in) of precipitation over 11 days, coupled with a relatively high humidity of 66%.
In contrast, April brings warmer temperatures, with a minimum of 18°C (64°F) and a maximum soaring to 34°C (93°F), averaging 25°C (78°F). This month sees slightly increased precipitation at 52 mm (2.1 in) across 12 days, while humidity decreases to 63%. The transition from January to April marks a noticeable rise in temperature and overall warmth. For more detailed information, check out La Fortuna weather in April.
In January, the weather in La Fortuna features a warm temperature range with a minimum of 14°C (58°F), an average of 23°C (74°F), and a maximum of 30°C (87°F). This month experiences moderate precipitation, totaling 42 mm (1.6 in) over approximately 11 days, and a humidity level of 66%. In contrast, May sees higher temperatures, with a minimum of 19°C (67°F), an average of 25°C (77°F), and a peak of 34°C (93°F). However, this month is also notably wetter, receiving 308 mm (12.1 in) of rain over about 25 days, accompanied by slightly lower humidity at 63%. For a detailed overview of conditions during this month, check out La Fortuna weather in May.
In January, La Fortuna experiences mild temperatures with a minimum of 14°C (58°F) and an average high of 30°C (87°F), while the humidity sits at a comfortable 66%. Precipitation during this month is relatively low at 42 mm (1.6 in), occurring over about 11 days. In contrast, June sees warmer temperatures with a minimum of 20°C (69°F) and an average maximum of 32°C (90°F). However, the weather becomes significantly wetter, with a substantial increase in rainfall to 314 mm (12.4 in) spread over 28 days and increased humidity at 74%. For a detailed insight into June's weather, you can visit La Fortuna weather in June.
January and July exhibit notable differences in weather conditions. In January, temperatures range from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), with an average of 23°C (74°F). The month experiences relatively low precipitation, totaling 42 mm (1.6 in) over about 11 days, and the humidity sits at a comfortable 66%. In contrast, July boasts warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 31°C (88°F), averaging 24°C (76°F). However, it is significantly wetter, with 146 mm (5.7 in) of rain spread across 28 days and higher humidity at 85%. For more specific insights on weather patterns during this month, you can check La Fortuna weather in July.
In January, temperatures in La Fortuna range from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), with an average temperature of 23°C (74°F). The month experiences relatively low precipitation, totaling 42 mm (1.6 in) over 11 days and maintaining a humidity level of 66%. In contrast, August brings warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 32°C (90°F), averaging at 24°C (76°F). However, August significantly increases in rainfall, totaling 257 mm (10.1 in) across 27 days and higher humidity levels at 82%. For more details on the weather specifics in August, check out La Fortuna weather in August.
In January, the weather is typically warm with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), averaging around 23°C (74°F). There is relatively low precipitation of 42 mm (1.6 in) over about 11 days, and humidity levels sit at a comfortable 66%. In contrast, September brings noticeably warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 32°C (89°F), averaging 24°C (76°F). However, this month is characterized by significantly higher rainfall, totaling 295 mm (11.6 in) across 28 days, resulting in increased humidity of 80%. For more insights on weather conditions, check out La Fortuna weather in September.
In January, the weather features a comfortable range of temperatures, with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at 30°C (87°F). Precipitation is relatively low during this month, with about 42 mm (1.6 in) spread over 11 days and humidity resting at 66%. In contrast, October brings warmer nighttime temperatures, starting at a minimum of 20°C (67°F) and averaging 24°C (75°F), with highs reaching 31°C (87°F). However, October is significantly wetter, receiving around 391 mm (15.4 in) of rain across 29 days and higher humidity levels at 79%. For more detailed insights into the conditions during this month, you can refer to La Fortuna weather in October.
When comparing January and November weather, January experiences warmer daytime temperatures, averaging 23°C (74°F) with a maximum of 30°C (87°F), while November has a slightly higher average of 24°C (75°F) but starts with a minimum temperature of 18°C (65°F). Notably, November is much wetter, with 169 mm (6.7 in) of precipitation over 24 days compared to January's 42 mm (1.6 in) over only 11 days. Additionally, humidity levels are higher in November at 79%, compared to January's 66% humidity. For more detailed information about La Fortuna's weather in November, you can visit La Fortuna weather in November.
In January, temperatures in La Fortuna range from a minimum of 14°C (58°F) to a maximum of 30°C (87°F), maintaining an average of 23°C (74°F). The month sees less precipitation, totaling 42 mm (1.6 in) across 11 days, and the humidity is at 66%. In contrast, December experiences slightly warmer temperatures, with a minimum of 18°C (64°F) and a maximum of 29°C (85°F), while the average remains the same at 23°C (74°F). December also brings more rain, with 60 mm (2.3 in) spread over 20 days, and a higher humidity of 70%. For more detailed weather information, check La Fortuna weather in December.
January in La Fortuna is a delightful time, offering a warm and inviting climate that sets it apart from the rest of the year. With mild temperatures, averaging around 23°C (74°F), visitors can enjoy the region’s natural beauty without the extreme heat often felt in the peak months. The shorter rainfalls of about 42 mm across 11 days make for a refreshing yet manageable humidity of 66%. This unique blend of weather makes January a prime time for outdoor adventures, allowing travelers to explore the stunning landscapes of La Fortuna. For a deeper understanding of how January fits into the broader climate patterns, explore La Fortuna Climate.