Ostional Weather in August

Ostional in August averages 30°C (86°F) during the day and 25°C (77°F) at night. August is part of the rainy season, so frequent rainfall is typical.

Rainfall in Ostional in August

Ostional is in the rainy season in August, with rain on around 21 days and an average of 360 mm (14 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Ostional in August

Daytime highs in Ostional in August reach 30°C (86°F), with nights around 25°C (77°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.

If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Ostional. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Ostional's climate page.

Ostional Temperature in August

Min Temperature 25°C (77°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 71%  

Precipitation 360 mm (14 in)  

Rainy days 21 days  

What to Wear in Ostional in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!

What To Do in Ostional in August

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

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 Ostional's climate page.

More climate data for Ostional

Temperature Rainfall

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