Temperatures in August
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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Costa Rica in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Costa Rica with hot temperatures, averaging around 28°C during the day and nights close to 21°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-August
By mid-August, the average daytime temperature stays the same at 28°C, with nights close to 21°C. The chance of precipitation is high during this period.
Temperatures vary between day and night, so it’s smart to wear layers.
End of August
By the end of August, the average daytime temperature in Costa Rica will be around 28°C, with nights close to 20°C. There’s a significant chance of many days with precipitation.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in August
In August, there is an average of 201 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Across the whole month, the average precipitation chance is 52% per day.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Costa Rica. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Costa Rica in August |
UK | ||
|---|---|---|---|
 Average Temperature |
27°C | 22°C | |
 High Temp |
28°C | 24°C | |
| Low Temp |
27°C | 19°C | |
 Total Precipitation |
201 mm | 60 mm | |
| Rainy Days |
16 days | 10 days | |
July
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.
Is August a good time to visit Costa Rica?
After some sun? Then August isn’t the best time to be in Costa Rica. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Costa Rica runs from June to November.
Temperature records for Costa Rica in August
With 31°C, Costa Rica hit the highest temperature in the last 10 years in August 2019. The lowest daytime temperature in this month was 21°C in 2020. The extreme night temperatures ranged from a low of 14°C to a high of 23°C.
Check out the climate of Costa Rica for all months and discover the best travel time
The climate of Costa Rica is based on weather data from San José. Other locations might have different weather. You can check out all destinations in Costa Rica for a full picture of the climate.
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Daily Temperature in August in Costa Rica
This chart shows the average daily temperatures, both day and night, for each day in August in Costa Rica, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in August in Costa Rica
Good
Beautiful sunny days alternate with torrential rains, typica... more
Daily Precipitation in August in Costa Rica
The chart below shows the average daily precipitation in August for Costa Rica, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 16 days of rain in Costa Rica.
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.
Temperature in August in Costa Rica Over the Years
This chart shows the average temperature in August in Costa Rica, measured in degrees Celsius, over the past years.
Total Precipitation in August in Costa Rica Over the Years
This chart shows the average precipitation in August in Costa Rica, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Costa Rica
Click on a specific day in August for detailed info on the typical weather on that day in Costa Rica. Check out the historical temperatures and precipitation over the past 10 years on this day.
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 mackintosh!— 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.
Or check out the climate of Costa Rica for all months at once
