August weather forecast
Costa Rica

August signifies the continuation of the wet season in Costa Rica, following the brief respite offered by the "veranillo" in July. The lush greenery continues to thrive, nourished by the frequent rain showers. Average temperatures generally range from 21°C (69.8°F) to 26°C (78.8°F) throughout the country, consistent with the temperatures of previous months.

In the central highlands, including areas such as San Jose and the Cordillera Central, temperatures hover from 19°C (66.2°F) to 21°C (69.8°F). Despite the increasing precipitation, this region still experiences intervals of sunshine, making it possible to appreciate the verdant landscapes.

The Caribbean coast maintains its regular rainfall pattern, yet the diversity of wildlife remains a significant draw for visitors. The region continues to offer an abundance of nature-based activities.

While far from the temperature extremes seen earlier in the year, August is characterized by warm, humid days interspersed with rainfall. The showers are typically concentrated in the afternoons, while mornings often remain clear and bright.

As August transitions into September, the rainfall tends to intensify further, marking the height of the wet season. Despite the precipitation, August can be an attractive month for those who enjoy the vibrant, rain-nourished landscapes and the lively wildlife of Costa Rica.

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• San José - August »
  In San José during August, the rain falls for 29.2 days and regularly aggregates up to 339mm (13.35") of precipitation. In August, the average daily maximum UV index in San José, Costa Rica, is 5.
• Limon - August »
  On the first day of August in Limon, Costa Rica, sunrise is at 05:21 and sunset at 17:55. On the last day of August, in Limon, sunrise is at 05:22 and sunset at 17:41 CST.
• Alajuela - August »
  In Alajuela in August, during 28.8 rainfall days, 336mm (13.23") of precipitation is typically accumulated. August's presence in Alajuela marks an average high-temperature of a still warm 24.9°C (76.8°F), subtly varied from July's 24.8°C (76.6°F).
• Puntarenas - August »
  Puntarenas transitioning from July to August, settles on a high-temperature average of a still tropical 32.2°C (90°F), equal to the previous month. In August, the average sea temperature in Puntarenas is 29°C (84.2°F).
• Liberia - August »
  In Liberia during August, the rain falls for 23.1 days and regularly aggregates up to 180mm (7.09") of precipitation. The weather in August in Liberia, while similar in rain frequency to July, witnesses the highest monthly rainfall of the year, amassing 180mm (7.09").
• Guadalupe - August »
  In Guadalupe during August, the rain falls for 30.4 days and regularly aggregates up to 299mm (11.77") of precipitation. The average relative humidity in August in Guadalupe is 85%.
• San Francisco - August »
  On the first day of August in San Francisco sunrise is at 05:26 and sunset at 17:59. The months with the lowest UV index in San Francisco are May, August and November, with an average maximum UV index of 5.
• San Isidro - August »
  August temperatures in San Isidro vary between a high-temperature of 23.3°C (73.9°F) and a low-temperature of 15.8°C (60.4°F). In San Isidro, Costa Rica, the average daily maximum UV index in August is 5.
• Quesada - August »
  On the first day of August in Quesada, Costa Rica, sunrise is at 05:27 and sunset at 18:01. In Quesada, in August, it is raining for 29.2 days, with typically 339mm (13.35") of accumulated precipitation.
• San Vicente - August »
  August in San Vicente showcases Costa Rica's renowned wet season, as the city delves back into abundant rainfall with an average of 287mm (11.3"). The months with the lowest UV index in San Vicente are May, August and November, with an average maximum UV index of 5.
• San Rafael - August »
  In San Rafael in August, during 29.8 rainfall days, 307mm (12.09") of precipitation is typically accumulated. August in San Rafael, Costa Rica, registers an average high-temperature of a warm 23°C (73.4°F), slightly varied from July's 22.9°C (73.2°F).
• San Diego - August »
  In San Diego, Costa Rica, during August, the rain falls for 29.8 days and regularly aggregates up to 307mm (12.09") of precipitation. As the calendar flips to August, San Diego witnesses a gradual slackening of the showers compared to July, with rainfall measuring 307mm (12.09").