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San José weather in August

Planning a journey to San José this August and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in San José in August?

San José is a region in Costa Rica. August in San José generally has warm temperatures, with heavy precipitation.

The average maximum temperatures are warm and range from 23°C in La Ese to 26°C in Colón. Nighttime temperatures generally drop to 18°C in Colón and 16°C in La Ese.

In August, precipitation varies across different areas. From heavy rainfall in Heredia with an average of 355 mm to heavy rainfall in San Isidro with 645 mm. Most areas experience a moderate amount of sunshine, with approximately 160 hours of sunlight expected in San José. This makes it neither too gloomy nor overly bright.

For specific regional insights in San José for August, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our San José climate page.

Where to go in San José in August

Find the average weather conditions in August for the most popular destinations in San José on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in San José

What is the weather like in August for the 5 most popular destinations in San José?

Average weather in San José

In August San José generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 17°C and heavy monthly rainfall. So on average the conditions are poor that month.

San José
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
24°C 
17°C 
152 hours 
347 mm 
23 days 
poor 
24°C 
17°C 
160 hours 
414 mm 
24 days 
poor 
24°C 
16°C 
149 hours 
476 mm 
24 days 
poor 
Climate in San José

Average weather in Heredia

In August Heredia generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 17°C and heavy monthly rainfall. So on average the conditions are poor that month.

Heredia
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
25°C 
17°C 
152 hours 
290 mm 
24 days 
poor 
25°C 
17°C 
160 hours 
355 mm 
24 days 
poor 
25°C 
17°C 
149 hours 
426 mm 
24 days 
poor 
Climate in Heredia

Average weather in Santa Ana

In August Santa Ana generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 17°C and heavy monthly rainfall. So on average the conditions are poor that month.

Santa Ana
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
25°C 
18°C 
152 hours 
379 mm 
23 days 
poor 
25°C 
17°C 
160 hours 
453 mm 
23 days 
poor 
25°C 
17°C 
149 hours 
510 mm 
24 days 
poor 
Climate in Santa Ana

Average weather in San Gerardo de Dota

In August San Gerardo de Dota generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 16°C and heavy monthly rainfall. So on average the conditions are poor that month.

San Gerardo de Dota
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
24°C 
16°C 
150 hours 
442 mm 
24 days 
poor 
24°C 
16°C 
152 hours 
506 mm 
24 days 
poor 
24°C 
16°C 
153 hours 
564 mm 
24 days 
poor 
Climate in San Gerardo de Dota

Average weather in San Isidro

In August San Isidro generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 17°C and heavy monthly rainfall. So on average the conditions are poor that month.

San Isidro
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
24°C 
17°C 
150 hours 
562 mm 
23 days 
poor 
24°C 
17°C 
152 hours 
645 mm 
23 days 
poor 
24°C 
17°C 
153 hours 
655 mm 
23 days 
poor 
Climate in San Isidro

Is your destination not in the list? Have a look at other destinations in San José, in Costa Rica.

Is August the best time to visit San José?

In our opinion, August may not be the ideal time to visit San José due to the typically poor weather in San José.

On average, the best time to visit San José is in January, February and March with generally perfect weather in San José. On the other hand, the months of May, June, July, August, September, October and November tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in San José. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Costa Rica? Get detailed historical weather averages for many cities in Costa Rica.

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