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Manuel Antonio National Park Weather in August
Manuel Antonio National Park in August averages 28°C (82°F) during the day and 23°C (73°F) at night. This is the wettest month of the year.
Rainfall in Manuel Antonio National Park in August
Manuel Antonio National Park is in the rainy season in August, with rain on around 22 days and an average of 940 mm (37 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 Manuel Antonio National Park in August
August in Manuel Antonio National Park sees highs of 28°C (82°F) and lows of 23°C (73°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. Nights stay warm at around 23°C (73°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Manuel Antonio National Park in August
With about 152 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February and March typically offer the best weather for Manuel Antonio National Park.
Manuel Antonio National Park Temperature in August
Min Temperature
23°C (73°F)
Max Temperature
28°C (82°F)
Chance of Rain
73%
Precipitation
940 mm (37 in)
Rainy days
22 days
Humidity
82% *
Sunshine
152 hours *
Percentage Sunshine
*
* Data from: Quepos, Costa Rica (7 KM, 4 Miles).
Manuel Antonio National Park Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Manuel Antonio National Park - and find the best time to visit.
Daily Historical Temperatures
43-year average (1976-2025)
Based on our historical records, temperatures in Manuel Antonio National Park typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in August
Daily Historical Precipitation
43-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Manuel Antonio National Park in August
Browse day-by-day weather records for Manuel Antonio National Park spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Manuel Antonio National Park historical weather extremes in August
According to our 30 years of weather records for Manuel Antonio National Park, the following extremes were recorded between 1996 and 2026.
- Manuel Antonio National Park recorded its highest August temperature of 31°C (88°F) on August 10, 1998.
- On August 26, 2020, Manuel Antonio National Park saw its coldest August day with temperatures maxing out at 22°C (72°F).
- The lowest overnight temperature recorded in August was 15°C (59°F) (August 2, 2018).
- Peak precipitation in August occurred on August 18, 2009, when 273 mm (11 in) of precipitation was measured.
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
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Manuel Antonio National Park 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! Sunglasses could come in handy during the sunnier parts of your trip.
Manuel Antonio National Park 3-Day Forecast
More climate data for Manuel Antonio National Park
Temperature Rainfall Sunshine Humidity
See the full Manuel Antonio National Park climate overview or explore weather in Costa Rica.
Popular in August
Where to go in August - average daytime high across popular destinations.
Tamarindo
31°C (88°F) Cahuita29°C (84°F) Santa Teresa29°C (84°F) Herradura28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Fortuna28°C (82°F) Jacó28°C (82°F) San José24°C (75°F) Bucket list
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