Playa Grande Weather in August
August in Playa Grande sees daytime temperatures around 31°C (88°F) and lows of 25°C (77°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Playa Grande in August
Playa Grande is in the rainy season in August, with rain on around 21 days and an average of 241 mm (9.5 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Playa Grande in August
In August, Playa Grande sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 25°C (77°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Playa Grande in August
The city usually sees around 183 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February and December typically offer the best weather for Playa Grande.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Playa Grande's climate page.
Playa Grande Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
70%
Precipitation
241 mm (9.5 in)
Rainy days
21 days
Humidity
81% *
Sunshine
183 hours *
Percentage Sunshine
*
Daily Historical Temperatures
40-year average (1976-2025)
Based on our historical records, temperatures in Playa Grande typically stay consistent throughout August, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in August
Daily Historical Precipitation
40-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Playa Grande in August
Browse day-by-day weather records for Playa Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Playa Grande historical weather extremes in August
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Playa Grande.
- Playa Grande recorded its highest August temperature of 37°C (99°F) on August 20, 2014.
- The lowest daytime temperature in August was 26°C (79°F), recorded on August 12, 2007.
- The lowest overnight temperature recorded in August was 20°C (68°F) (August 15, 2018).
Best Places in Costa Rica in August
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Playa Grande in August
Warm but pleasant conditions in Playa Grande in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Playa Grande in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Playa Grande's climate page.
Temperature Rainfall Sunshine Humidity
See the full Playa Grande climate overview or explore weather in Costa Rica.
