Last updated: August 21, 2025
Experience the enchanting weather of La Fortuna, Costa Rica in January, where the tropical climate brings pleasant warmth and occasional rain. With maximum temperatures reaching 29°C (84°F) and an average of 22°C (72°F), visitors can enjoy a comfortable environment perfect for exploration. However, prepare for the possibility of sporadic showers, as the region sees about 99 mm (3.9 in) of rain over 13 days this month, contributing to the lush scenery. The air remains invitingly humid at 71%, adding to the vibrant atmosphere of this stunning locale. Whether you’re hiking through rainforests or relaxing in hot springs, January in La Fortuna promises a balance of adventure and tranquility.
In January, La Fortuna, Costa Rica, experiences a pleasant range of temperatures that beckon visitors to explore its stunning landscapes. The month starts with a minimum temperature of 16°C (61°F), averaging 22°C (72°F), and peaking at a comfortable 29°C (84°F). As the season progresses into February and March, there's a slight upward trend, with average temperatures rising to 23°C (73°F) and maximums reaching up to 31°C (88°F). By April, the warmth continues, with daytime highs hitting 32°C (90°F), showcasing the region’s tropical charm. However, the consistency of mild evenings, dropping to around 17°C (64°F) or 19°C (66°F), remains a delightful feature throughout the months. As the year transitions into the rainy season, temperatures stabilize, ranging from 20°C (68°F) to 24°C (75°F) for much of the mid-year. Whether you enjoy the warmer daytime highs or the cooler evenings, La Fortuna's January climate is an enchanting invitation to discover its natural wonders.
In January, La Fortuna experiences moderate precipitation with an average of 99 mm (3.9 in) spread over 13 days of the month. This marks a notable contrast to the upcoming dry February, which sees a significant drop in both rainfall and rainy days, plummeting to just 23 mm (0.9 in) over 5 days. As the months progress toward the dramatically wetter season, May showcases the transition with a striking increase to 308 mm (12.1 in), accompanied by nearly daily downpours. The peak precipitation months of June through October consistently exceed 250 mm and often see rainfall on most days, culminating in a remarkable 398 mm (15.7 in) in October. Meanwhile, the drier months, like February and March, offer a welcome respite and allow visitors to explore the lush landscapes and abundant wildlife that thrive under the tropical sun, before the intense rains return.
In La Fortuna, Costa Rica, January greets visitors with a comfortable humidity level of 71%, setting the stage for a pleasant dry season. As the months progress into February and March, humidity sees a slight decline, reaching its lowest point at 68% in March, ideal for outdoor adventures. However, by April and May, humidity levels begin to stabilize around 69% to 70%, ensuring the lush landscape remains vibrant. The climate shifts dramatically with the onset of the rainy season in June, where humidity surges to 81% and continues to climb, peaking in July at a notable 88%. This trend highlights the region’s transition from the dry to the wet season, with August and September maintaining high humidity levels just below 85%. As the year winds down, humidity begins to taper off, dropping to 74% in December, yet remains relatively high throughout the rainy months, creating a tropical paradise ripe for exploration.
In January, La Fortuna, Costa Rica experiences a severe UV Index of 12, categorized as extreme, with a burn time of just 10 minutes. This intense exposure sets the tone for the following months, as the UV index sees a slight increase, peaking at 15 in both March and April. Throughout the dry season, the index remains notably high, fluctuating between 13 and 15 before tapering off slightly toward the end of the year. Notably, even in November and December, while the levels drop to 11 and 10, respectively, they still remain in the very high to extreme categories. Visitors are encouraged to take precautions under the potent sun during this time. For more detailed information, check out the La Fortuna UV Index.
UV Risk Categories
In January, La Fortuna basks in an invigorating 251 hours of sunshine, setting the stage for a vibrant start to the year. As the months progress, the sun's embrace grows more generous, peaking in March with an impressive 330 hours, inviting adventure seekers and nature lovers alike to explore its lush landscapes. This sunny spell begins to taper off slightly in April and May, with 311 and 256 hours respectively, before settling into a more consistent rhythm through the mid-year. Despite a dip in brightness during the rainy season, with September and October each offering only 250 and 232 hours, the cloud of gloom lifts again by December, showcasing a delightful resurgence with 303 hours of radiant sunshine. Overall, La Fortuna's climate offers a captivating blend of sunny days and seasonal shifts, perfect for cultivating unforgettable experiences throughout the year.
In La Fortuna, Costa Rica, January boasts a 37% chance of sunny weather, making it one of the more favorable months for sunshine as the region transitions into its drier season. This trend continues into February and March, where the likelihood of sun increases to 42%, offering visitors ample opportunities to explore lush landscapes and vibrant wildlife. However, come April, the forecast shifts dramatically, with sunny days dwindling to just 21% as the rains begin to creep in. This pattern highlights the importance of planning your visit earlier in the year, as the chances of sunshine in the following months—May through August—drop significantly, hovering around 16% to 7%. By the end of the year, December sees a slight recovery to 38%, but travelers keen on maximizing their sunny experience should certainly take advantage of January's relatively bright outlook.
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 experiences a gentle breeze with an average wind speed of 3.2 m/s (7 mph), setting a tranquil tone for the month. This consistent wind pattern continues into February, maintaining the same mild conditions. As the seasons shift into March, the wind picks up slightly, reaching 3.5 m/s (8 mph), hinting at the warmer days ahead. However, April brings a gentle decline to 2.5 m/s (6 mph), followed by the calmest winds of the year in May and June, with speeds dropping to 2.2 m/s (5 mph) and 1.6 m/s (3 mph), respectively. The summer months see a slight resurgence in wind speeds, with July and November each reaching 2.1 m/s (5 mph) and 2.3 m/s (5 mph). As the year winds down, December ushers in a refreshing shift back to 2.9 m/s (7 mph), reminding us that La Fortuna’s winds remain a captivating element of its climate, providing a rhythmic dance to the lush landscapes.
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.
In comparing the weather between January and February, we see a slight increase in average temperatures, with February averaging 23°C (73°F) compared to January's average of 22°C (72°F). The maximum temperatures also rise in February, reaching 31°C (88°F), which is warmer than January's maximum of 29°C (84°F). Precipitation significantly decreases in February, with only 23 mm (0.9 in) over just 5 days, while January experiences heavier rainfall of 99 mm (3.9 in) across 13 days. Humidity remains relatively stable, slightly dropping from 71% in January to 70% in February. For a detailed look at February weather, you can visit La Fortuna weather in February.
In January, the weather is slightly cooler, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F). This month experiences more rainfall, totaling 99 mm (3.9 in) across about 13 days, along with a higher humidity level of 71%. In contrast, March sees a marginal rise in temperature, with averages ranging from a minimum of 17°C (63°F) to a maximum of 30°C (87°F). Rainfall significantly decreases to 28 mm (1.1 in) over just 6 days, and humidity slightly drops to 68%. For a more detailed look at the weather patterns, check out La Fortuna weather in March.
In January, the weather is characterized by temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F), with an average temperature of 22°C (72°F). This month experiences substantial rainfall, totaling 99 mm (3.9 in) over 13 days, and carries a humidity level of 71%.
In contrast, April features slightly warmer conditions, with temperatures ranging from a minimum of 17°C (64°F) to a maximum of 32°C (90°F) and an average of 24°C (76°F). Although April also sees precipitation on 13 days, the total rainfall is lower at 72 mm (2.8 in) and humidity is marginally reduced at 69%.
For more detailed information about weather patterns during this month, you can visit La Fortuna weather in April.
In January, the weather tends to be slightly cooler, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F) and an average of 22°C (72°F). Though there is significant humidity at 71%, January experiences a total rainfall of 99 mm (3.9 in) over approximately 13 days. In contrast, May sees warmer temperatures, with a minimum of 19°C (67°F) and a maximum of 32°C (91°F), averaging 24°C (76°F). However, it is also wetter, with precipitation reaching 308 mm (12.1 in) over 26 days. Despite the higher rainfall, May's humidity remains comparable at 70%. For further details, you can check La Fortuna weather in May.
In January, the weather is generally mild with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F) and an average of 22°C (72°F). This month experiences around 99 mm (3.9 in) of precipitation over approximately 13 days, contributing to a humidity level of 71%. In contrast, June is typically warmer and wetter, featuring a minimum temperature of 20°C (68°F), an average of 24°C (76°F), and a maximum of 31°C (88°F). This month sees a significant increase in precipitation, totaling 312 mm (12.3 in) over 29 days, leading to higher humidity levels at 81%. For further details, check out La Fortuna weather in June.
In January, the weather typically features milder temperatures, with a minimum of 16°C (61°F) and a maximum of 29°C (84°F), averaging around 22°C (72°F). The month experiences moderate rainfall, totaling 99 mm (3.9 in) over about 13 days, and has a humidity level of 71%. In contrast, July tends to be warmer with minimum temperatures of 20°C (68°F) and a maximum of 30°C (87°F), averaging 24°C (75°F). However, this month sees significantly higher precipitation, reaching 253 mm (10.0 in) spread over 28 days, and the humidity rises to 88%, creating a much more humid environment. For more details on July's weather, you can visit La Fortuna weather in July.
January and August present contrasting weather patterns, particularly in terms of temperature and precipitation. In January, temperatures range from a minimum of 16°C (61°F) to a maximum of 29°C (84°F), with an average of 22°C (72°F). The month experiences 99 mm (3.9 in) of rainfall over 13 days and has a humidity level of 71%. In sharp contrast, August sees higher temperatures, with a minimum of 20°C (68°F), an average of 24°C (75°F), and a maximum of 31°C (89°F). However, this month is significantly wetter, with 295 mm (11.6 in) of rainfall over 29 days and increased humidity at 85%. For more detailed information, check out La Fortuna weather in August.
The weather in January and September shows notable differences, particularly in temperature and precipitation. January experiences milder temperatures, with a minimum of 16°C (61°F) and a maximum of 29°C (84°F), while September is warmer with a minimum of 20°C (68°F) and a maximum of 31°C (88°F). However, September is significantly wetter, receiving 277 mm (10.9 in) of rain over 29 days compared to January's 99 mm (3.9 in) over just 13 days. Additionally, September has higher humidity at 84%, compared to January's 71%. For more detailed information about September weather in La Fortuna, you can visit La Fortuna weather in September.
In January, the weather features a milder temperature range, with minimums of 16°C (61°F) and maximums reaching 29°C (84°F), while, on average, it is a comfortable 22°C (72°F). The month experiences about 99 mm (3.9 in) of precipitation over 13 days, with a humidity level of 71%. In contrast, October sees warmer temperatures, with a minimum of 20°C (67°F) and a maximum of 30°C (86°F), averaging around 24°C (75°F). However, October is significantly wetter, receiving 398 mm (15.7 in) of rainfall over 29 days, and the humidity rises to 82%. For a more detailed look at weather patterns, you can refer to La Fortuna weather in October.
In comparing the weather between January and November, January typically features a milder temperature range, with minimums around 16°C (61°F) and averages of 22°C (72°F), while November sees slightly warmer conditions, with minimums at 19°C (66°F) and average temperatures of 23°C (74°F). Both months have maximum temperatures peaking at 29°C (84°F), but November is notably wetter, receiving 259 mm (10.2 in) of precipitation over 27 days, compared to January's 99 mm (3.9 in) across 13 days. Additionally, November has a higher humidity level of 81% compared to January's 71%. For more detailed insights into November’s weather, check out La Fortuna weather in November.
In comparing the weather of January and December, we observe that January typically features slightly cooler temperatures, with an average low of 16°C (61°F) compared to December's 17°C (63°F). Both months have similar maximum temperatures of 29°C (84°F), but January is generally warmer overall with an average temperature of 22°C (72°F) versus December's 23°C (73°F). Precipitation levels are notably higher in December, with 180 mm (7.1 in) over 22 days, as opposed to January's 99 mm (3.9 in) over 13 days. This results in January being a bit drier, with lower humidity at 71% compared to December's 74%. For more detailed information about conditions in December, you can check La Fortuna weather in December.
In January, La Fortuna welcomes visitors with a blend of mild temperatures and moderate humidity, offering a pleasant escape from the heat of the tropical sun. With daily highs hovering around a comfortable 29°C (84°F) and cooler nights, the weather strikes a perfect balance for outdoor adventures. While January sees a fair share of precipitation, it generally marks a transition into a drier season compared to the heavier rains of later months. This combination of warm days and occasional refreshing showers makes January an ideal time to explore the lush landscapes and vibrant wildlife of La Fortuna. For an in-depth look at what to expect throughout the year, check out the detailed insights on La Fortuna Climate.