San Antonio Weather in August

Thinking of visiting San Antonio in August? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 17°C (63°F) at night. Heavy showers are common during the rainy season.

Rainfall in San Antonio in August

As part of the rainy season, San Antonio sees around 24 days of rain in August, with an average of 387 mm (15 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in San Antonio in August

August in San Antonio sees highs of 25°C (77°F) and lows of 17°C (63°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in San Antonio in August

The area enjoys a moderate level of sunlight, with around 160 hours. It's a good balance between sunny and rainy days.

If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit San Antonio. Our weather planner can help you explore destinations with more pleasant weather conditions.

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

San Antonio Temperature in August

Min Temperature 17°C (63°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 78%  

Precipitation 387 mm (15 in)  

Rainy days 24 days  

Humidity 83% *  

Sunshine 160 hours *  

Percentage Sunshine *  

* Data from: San José, Costa Rica (12 KM, 7 Miles).

What to Wear in San Antonio in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in San Antonio in August

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

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

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 Antonio's climate page.

More climate data for San Antonio

Temperature Rainfall Sunshine Humidity

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