San Isidro Weather in August

August in San Isidro typically sees daytime highs of 24°C (75°F) and nighttime lows of 17°C (63°F). August falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in San Isidro in August

As part of the rainy season, San Isidro sees around 23 days of rain in August, with an average of 645 mm (25 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in San Isidro in August

San Isidro in August gets highs of 24°C (75°F) during the day and drops to 17°C (63°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in San Isidro in August

The area enjoys a balanced 152 hours of sunlight, ensuring it's neither too rainy nor too sunny.

August in San Isidro can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit Costa Rica, check out our San Isidro's climate page.

San Isidro Temperature in August

Min Temperature 17°C (63°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 78%  

Precipitation 645 mm (25 in)  

Rainy days 23 days  

Humidity 82% *  

Sunshine 152 hours *  

Percentage Sunshine *  

* Data from: Quepos, Costa Rica (50 KM, 31 Miles).

What to Wear in San Isidro in August

For San Isidro in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in San Isidro in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Costa Rica, check out our San Isidro's climate page.

More climate data for San Isidro

Temperature Rainfall Sunshine Humidity

See the full San Isidro climate overview or explore weather in Costa Rica.