October weather forecast
Costa Rica

October in Costa Rica is recognized as the rainiest month of the year. The country experiences the peak of the wet, or "Green," season, with frequent and heavy rain showers. As a result, the landscapes are at their most lush and vibrant, teeming with rich biodiversity. The average temperatures during October remain similar to September, generally ranging from 20°C (68°F) to 25°C (77°F).

The central highlands, which include regions such as San Jose and the Cordillera Central, maintain temperatures from 18°C (64.4°F) to 20°C (68°F). Despite the heavy rainfall, periods of respite still occur, enabling visitors to admire the lush greenery and rich biodiversity of these regions.

On the Caribbean coast, the year-round pattern of regular rainfall continues through October. The region remains a haven for nature enthusiasts, with its national parks and protected areas providing shelter to a vast array of wildlife.

While October doesn't host the temperature extremes seen in the hotter months, it stands out due to its exceptionally high levels of rainfall. Days are typically warm and humid, punctuated with frequent and often heavy showers.

As October transitions into November, the rainfall begins to decrease, signaling the gradual approach of the dry season. Despite the heavy rains, October offers visitors the chance to experience Costa Rica's landscapes in their most fertile state, with the lush vegetation and diverse wildlife creating a unique and breathtaking spectacle.

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• San José - October »
  The month with the most rainfall in San José is October, when the rain falls for 30.5 days and typically aggregates up to 438mm (17.24") of precipitation. October, characterized by an average high temperature of 22.4°C (72.3°F) and a low temperature of 16.1°C (61°F), is generally the coldest month in San José, Costa Rica.
• Limon - October »
  In Limon, during October, the rain falls for 16.7 days and regularly aggregates up to 214mm (8.43") of precipitation. October in Limon is marked by pleasant days and cooler nights.
• Alajuela - October »
  October is the most humid month in Alajuela with an average relative humidity of 90%. In Alajuela, the month of October registers the lowest temperatures, averaging 23.8°C (74.8°F) at the peak and 17.5°C (63.5°F) at the lowest.
• Puntarenas - October »
  In Puntarenas, during October, the rain falls for 24.5 days and regularly aggregates up to 279mm (10.98") of precipitation. In Puntarenas, October records the average lowest temperatures, peaking at 31.6°C (88.9°F) and reaching a low of 23.2°C (73.8°F).
• Liberia - October »
  The month with the most rainfall in Liberia is October, when the rain falls for 27.2 days and typically aggregates up to 274mm (10.79") of precipitation. The month with the most rainfall in Liberia is October, when the rain falls for 27.2 days and typically aggregates up to 274mm (10.79") of precipitation.
• Guadalupe - October »
  September and October, with an average relative humidity of 86%, are most humid months in Guadalupe, Costa Rica. Meanwhile, the relative humidity and wind conditions persist consistently, maintaining October's position as a peak month in Guadalupe's rainy season.
• San Francisco - October »
  In San Francisco during October, the rain falls for 30.2 days and regularly aggregates up to 396mm (15.59") of precipitation. San Francisco's temperature records reveal October as the coldest month, marked by average highs of 25.4°C (77.7°F) and lows of 18.9°C (66°F).
• San Isidro - October »
  October stands out as San Isidro's coldest month, with temperatures ranging between an average high of 22.4°C (72.3°F) and a low of 16.1°C (61°F). The months with the highest humidity in San Isidro are September and October, with an average relative humidity of 91%.
• Quesada - October »
  September and October, with an average relative humidity of 91%, are most humid months in Quesada, Costa Rica. October sees a surge in rainfall, reaching a significant 438mm (17.24"), marking its position as the rainiest month in Quesada.
• San Vicente - October »
  The month with the most rainfall in San Vicente is October, when the rain falls for 30.2 days and typically aggregates up to 396mm (15.59") of precipitation. The month with the most rainfall in San Vicente is October, when the rain falls for 30.2 days and typically aggregates up to 396mm (15.59") of precipitation.
• San Rafael - October »
  October is the coldest month in San Rafael exhibiting average temperatures of 22.2°C (72°F) at the peak and 16.3°C (61.3°F) at the base. The month with the most rainfall in San Rafael is October, when the rain falls for 30.5 days and typically aggregates up to 444mm (17.48") of precipitation.
• San Diego - October »
  October is the month when San Diego, Costa Rica, sees the average lowest temperatures, with a high of 22.2°C (72°F) and a low of 16.3°C (61.3°F). October is the most humid month in San Diego, Costa Rica, with an average relative humidity of 90%.