Last updated: August 21, 2025
Experience the vibrant beauty of La Fortuna, Costa Rica in August, where temperatures reach a maximum of 32°C (90°F) and hover around an average of 24°C (76°F). The climate can be quite humid, with levels soaring to 82%, creating a lush and tropical atmosphere. However, prepare for frequent rain, as August sees about 257 mm (10.1 in) of precipitation over 27 days, bringing life to the stunning landscapes and enhancing the region's natural allure. Embrace the drizzle and explore at your own pace, while enjoying the unparalleled richness that this tropical paradise has to offer.
In August, La Fortuna, Costa Rica, maintains a warm and inviting climate, with temperatures ranging from a pleasant 20°C (68°F) at night to a comfortable 32°C (90°F) during the day. The average temperature hovers around 24°C (76°F), mirroring the patterns of the preceding months but slightly warming as the region transitions from the rainy season. This month presents a delightful opportunity to experience lush landscapes and vibrant wildlife, all while enjoying consistently mild weather. While the temperatures remain relatively stable throughout the year, August stands out for its tropical energy, making it an ideal time for outdoor adventures and exploration in this stunning locale.
In August, La Fortuna experiences a substantial increase in precipitation, recording 257 mm (10.1 in) of rain over 27 days. This marks a continuation of the rainy season, which begins in earnest around May and peaks in October. Comparatively, August sees less rainfall than the preceding months of June (314 mm) and July (146 mm), yet the persistent showers contribute significantly to the region's lush landscapes and vibrant ecosystems. The rainfall in August is part of a steady upward trend, highlighting the area's reputation as a tropical haven, where the verdant scenery thrives under the nourishing downpours. As the month unfolds, the occasional bursts of sunlight offer a striking contrast to the cloud-covered skies, creating a stunning backdrop for adventurers and nature lovers alike.
August in La Fortuna, Costa Rica, brings a notable spike in humidity, measuring around 82%. This month continues the trend set by the preceding months of the rainy season, where humidity levels soar, peaking in July at an impressive 85%. Following August, there's a slight decrease, with September and October displaying 80% and 79% humidity, respectively. Overall, the data reveals a clear pattern: as the wet season progresses from June through August, humidity consistently rises, creating a lush, vibrant atmosphere that characterizes this tropical paradise.
In August, La Fortuna continues to bask in the intense UV rays characteristic of its tropical climate, with a UV Index of 13 that falls into the extreme exposure category. Similar to the preceding months, this level of UV radiation mandates a cautious approach to sun exposure, as unprotected skin can burn within just 10 minutes. As the year progresses from January's peak of 15 in April to November's drop to 11, you can see a slight decrease in UV levels during late summer and early fall, yet the risk remains significant. Be sure to stay diligent about sun protection while enjoying the beautiful surroundings of La Fortuna, and for more insights on solar strength throughout the year, check out La Fortuna UV Index.
UV Risk Categories
In August, La Fortuna enjoys a commendable 271 hours of sunshine, continuing the vibrant trend of the region's summer months. While this figure slightly dips from the more sun-drenched July, which boasts 300 hours, it still contributes to the overall splendid weather that characterizes Costa Rica during this time. As the year progresses, the sunshine hours begin to wane, notably in the autumn months, with September and October seeing reduced brightness at 262 and 244 hours respectively. However, the clear skies and warm temperatures of August make it an ideal time to explore La Fortuna's rich biodiversity and stunning landscapes before the rainy season takes hold, ensuring visitors can bask in the tropical radiance.
August in La Fortuna, Costa Rica, tends to be one of the least sunny months, with only a 7% chance of clear skies. This decline in sunshine is indicative of the region's transition into the rainy season, where clouds and downpours become more prevalent. Following a pattern observed from June to September, the chances of sun remain low, peaking in earlier months like February (47%) and December (39%). If you’re envisioning a trip this August, be prepared for potential rain showers and consider the cooler beauty of the lush, green rainforest instead of sunbathing on the beach.
In La Fortuna, Costa Rica, the rhythm of daylight brings a unique charm throughout the year. August sees a consistent 12 hours of daylight, mirroring the trend established in the preceding months of April through July and continuing into September. This moderate and even distribution of daylight hours allows visitors to fully embrace the beauty of the lush landscapes and captivating wildlife. As the month transitions into the shoulder seasons of October and November, daylight begins to wane, reminiscent of the earlier months of January, February, and December, when daylight dips back to 11 hours. The steady duration of sunlight in August presents an ideal opportunity for engaging in outdoor adventures and soaking in the vibrant culture of this enchanting region.
In La Fortuna, Costa Rica, the August winds bring a gentle breeze, with an average speed of just 1.5 m/s (3 mph). This month typically marks one of the calmest periods of the year, following a gradual decline in wind strength since March's peak at 4.0 m/s (9 mph). With winds remaining light, August offers an ideal setting for enjoying the lush surroundings and vibrant wildlife without the disruptive gusts that characterize other months. As the rainy season progresses towards its peak, the stillness of the air invites both relaxation and exploration, making it a perfect time for outdoor adventures in this breathtaking region. The transition into September and October continues this trend of minimal wind, creating a serene atmosphere ideal for soaking in the natural beauty that La Fortuna is famous for.
Weather in La Fortuna varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in La Fortuna, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of August and January, we see distinct differences that characterize each month. August is marked by higher temperatures, with an average of 24°C (76°F) and maximums reaching 32°C (90°F). However, it also brings significant rainfall, with total precipitation of 257 mm (10.1 in) over 27 days and high humidity at 82%. In contrast, January offers milder conditions, featuring a slightly cooler average temperature of 23°C (74°F) and maximums of 30°C (87°F), but with much less rainfall, totaling only 42 mm (1.6 in) over 11 days and lower humidity at 66%. For more detailed insights into January's weather, you can refer to La Fortuna weather in January.
When comparing the weather in August and February, notable differences emerge. August experiences higher humidity levels at 82% and significantly more precipitation, receiving 257 mm over 27 days. In contrast, February enjoys a drier climate, with only 18 mm of rain over just 6 days and lower humidity at 64%. Temperature-wise, both months have similar average temperatures of around 24°C (75°F). However, February can reach slightly higher maximum temperatures, peaking at 33°C (91°F) compared to August's 32°C (90°F). For more details, visit La Fortuna weather in February.
When comparing the weather in August and March, we notice distinct differences in temperature and precipitation patterns. August experiences a minimum temperature of 20°C (68°F), with an average of 24°C (76°F) and a maximum of 32°C (90°F), accompanied by a high level of humidity at 82%. In contrast, March has slightly cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 33°C (91°F), yet it maintains the same average temperature of 24°C (76°F). The most significant difference lies in precipitation; March receives only 19 mm (0.8 in) over 6 days, whereas August sees a much wetter climate with 257 mm (10.1 in) over 27 days. For more detailed insights on weather in March, you can check La Fortuna weather in March.
When comparing the weather in August and April, we see notable differences in temperature, precipitation, and humidity levels. In August, the temperatures range from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 24°C (76°F). This period is characterized by high precipitation, totaling 257 mm (10.1 in) over 27 rainy days and elevated humidity at 82%. In contrast, April experiences slightly higher average temperatures, with a minimum of 18°C (64°F) and a maximum of 34°C (93°F), averaging 25°C (78°F). However, it has significantly lower precipitation, with just 52 mm (2.1 in) over 12 rainy days and humidity at a more comfortable 63%. For more specific insights, you can refer to La Fortuna weather in April.
When comparing the weather in August and May, both months exhibit warm temperatures but differ in precipitation and humidity levels. August has an average temperature ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with significant rainfall of 257 mm (10.1 in) over 27 days and high humidity at 82%. In contrast, May features slightly warmer averages with a minimum of 19°C (67°F) and a maximum of 34°C (93°F). However, it experiences even higher rainfall at 308 mm (12.1 in) over 25 days, combined with lower humidity at 63%. For more detailed information, you can explore La Fortuna weather in May.
In comparing the weather conditions of August and June, both months exhibit similar temperature ranges, with minimums around 20°C (68°F) and maximums peaking at 32°C (90°F). However, June tends to be slightly warmer on average, with a mean temperature of 25°C (77°F) compared to August’s 24°C (76°F). Precipitation levels are notably higher in June, receiving 314 mm (12.4 in) over 28 days, while August sees 257 mm (10.1 in) across 27 days. Additionally, humidity is more pronounced in August at 82%, compared to June's 74%. For more detailed information, you can visit La Fortuna weather in June.
In comparing the weather of August and July, both months experience similar temperature ranges, with minimums around 20°C (68°F) and average highs reaching approximately 31-32°C (88-90°F). However, August tends to be notably wetter, receiving 257 mm (10.1 in) of precipitation over 27 days, compared to July's 146 mm (5.7 in) over 28 days. Additionally, humidity levels slightly decrease in August to 82%, down from July's 85%. For more specific insights on July weather, you can check La Fortuna weather in July.
In comparing the weather between August and September, both months exhibit similar temperature ranges, with minimums around 20°C (68°F), averages at 24°C (76°F), and maximums reaching 32°C (89°F in September, slightly lower than August's 90°F). However, September sees a bit more precipitation, totaling 295 mm (11.6 in) over 28 days, compared to August's 257 mm (10.1 in) across 27 days. The humidity levels are also slightly lower in September at 80%, versus August's higher humidity of 82%. For more detailed insights about September's climate, you can check this link: La Fortuna weather in September.
When comparing the weather in August and October, both months feature similar average temperatures, with August averaging around 24°C (76°F) and October slightly lower at 24°C (75°F). However, October experiences increased precipitation, totaling 391 mm (15.4 in) over 29 days, compared to August's 257 mm (10.1 in) over 27 days. Humidity levels are also slightly lower in October at 79%, compared to August's 82%. To learn more about the specifics of October weather in the region, visit La Fortuna weather in October.
In August, the weather is typically warmer and more humid, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F) and an average of 24°C (76°F). This month experiences considerable rainfall, totaling 257 mm (10.1 in) over 27 rainy days, leading to a humidity level of 82%. In contrast, November sees slightly cooler temperatures, with a minimum of 18°C (65°F), averaging 24°C (75°F) and peaking at 30°C (87°F). Precipitation drops to 169 mm (6.7 in) across 24 days, resulting in a lower humidity of 79%. For more detailed information on November weather patterns, you can check La Fortuna weather in November.
August and December in La Fortuna present contrasting weather conditions. In August, the temperatures range from a minimum of 20°C (68°F) to a maximum of 32°C (90°F), with an average of 24°C (76°F). This month is marked by high humidity at 82% and significant rainfall, totaling 257 mm (10.1 in) over 27 days. In contrast, December experiences milder temperatures with a minimum of 18°C (64°F) and a maximum of 29°C (85°F), averaging at 23°C (74°F). The precipitation drastically decreases to 60 mm (2.3 in) over 20 days, accompanied by lower humidity at 70%. For more detailed information, check out La Fortuna weather in December.
In August, La Fortuna embraces a lush, tropical climate characterized by higher humidity levels and frequent rain showers, creating an enchanting, verdant landscape. While daytime temperatures can rise to a warm 32°C, the evenings bring a comfortable coolness, ideal for unwinding after a day of exploration. Compared to the dry season, August experiences significantly more precipitation, with rain during approximately 27 days of the month. This shift in weather not only enhances the region's natural beauty but also encourages vibrant wildlife activity, making it a unique time to experience the allure of La Fortuna. For more insights into the region's climate, visit La Fortuna Climate.