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Normal weather for Costa Rica 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.

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.

Costa Rica in August

New York
Temperature Average Temperature
27°C 30°C
Sun High Temp
28°C 31°C
Sun Low Temp
27°C 28°C
Rain Total Precipitation
201 mm 79 mm
Rain 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. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.

With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

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.

Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

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.

Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

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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.

Is August a good time to visit Costa Rica?

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.

The hurricane season in Costa Rica runs from June to November.

Temperature records for Costa Rica in August

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.

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Daily Temperature in August in Costa Rica

This chart shows the average daily high and low temperatures in August for Costa Rica, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in August in Costa Rica

Weather experiences in August in Costa Rica

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Beautiful sunny days alternate with torrential rains, typica... more

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Daily Precipitation in August in Costa Rica

The chart below shows the average daily precipitation in August for Costa Rica, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 22 days of precipitation in Costa Rica.

Daily Precipitation in August 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.

Daily UV Index in August in Costa Rica

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 few years.

Temperature in August in Costa Rica Over the Years

Total Precipitation in August in Costa Rica Over the Years

This chart shows the average precipitation in August in Costa Rica, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in August in Costa Rica Over the Years

Daily Climate 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.

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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Weather experience:Good StarStarStarStar

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.


Or check out the climate of Costa Rica for all months at once

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