The weather in August in Costa Rica
It's warm in August in Costa Rica with an average temperature of 27°C. Temperatures this month range from a low of 27°C to a high of 28°C. At night, you can expect temperatures between 19°C and 21°C.
Looking for sun? August isn’t a good month to be in Costa Rica. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Costa Rica. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 31°C in 2019, Costa Rica reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 21°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 23°C.
Rainfall amount
In August, there is an average of 201 mm of precipitation, spread over 22 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in August for Costa Rica
Click on any day in August to get detailed info about the usual weather on that day in Costa Rica. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Costa Rica | New York | |
|---|---|---|
| Average temperature | 27°C | 30°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 201 mm | 79 mm |
| Rainy days | 22 days | 13 days |
Start of August
The month of August starts in Costa Rica with hot temps, averaging around 28°C during the day and nights around 21°C.
Mid August
By mid-August, daytime temps stay steady at around 28°C, with nights around 21°C. There’s a high chance of precipitation during this time.
End of August
By the end of August, the average daytime temperature in Costa Rica is around 28°C, while nighttime temps are about 20°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in Costa Rica runs from June to November.
Check out the climate of Costa Rica for all months and discover the best travel time
The climate in Costa Rica is based on weather data from San José. Other spots might have different weather. You can check out all destinations in Costa Rica to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in August in Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Costa Rica
Temperature in August in Costa Rica over the years
Precipitation charts
These charts show the average amount of precipitation in August in Costa Rica. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Costa Rica
Total precipitation in August in Costa Rica over the years
Daily UV index in August in Costa Rica
This chart shows the average daily UV index in August in Costa Rica, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Costa Rica
The weather in August in Costa Rica is rated 4 out of 5 stars by 1 visitor. Have you been to Costa Rica? Share your weather experience to help other visitors.
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Beautiful sunny days alternate with torrential rains, typical of the rainy season. Despite the rain, temperatures remain pleasant between 25 and 30 degrees Celsius. Be sure to bring a raincoat!— This text is automatically translated to English
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Average weather in Costa Rica by month
Click on a month below to see detailed weather info for Costa Rica. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.