Costa Rica in February: Pacific or Caribbean Coast?
Compare Costa Rica weather in February, from dry and sunny Tamarindo to wetter Puerto Viejo, plus Jacó, Arenal and San José.
Tamarindo Weather in August
August in Tamarindo brings very high temperatures around 31°C (88°F) during the day, dropping to 25°C (77°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Tamarindo in August
As part of the rainy season, Tamarindo sees around 21 days of rain in August, with an average of 250 mm (9.8 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Tamarindo in August
In August, expect very high temperatures in Tamarindo, with highs of 31°C (88°F) and lows of 25°C (77°F) at night. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Tamarindo in August
The month experiences a moderate amount of sunlight, with 183 hours of sunshine. This provides a nice balance between sunshine and rain.August in Tamarindo 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.
Tamarindo Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
71%
Precipitation
250 mm (9.8 in)
Rainy days
21 days
Humidity
81% *
Sunshine
183 hours *
Percentage Sunshine
*
* Data from: Liberia, Costa Rica (58 KM, 36 Miles).
Tamarindo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tamarindo - and find the best time to visit.
Daily Historical Temperatures
40-year average (1976-2025)
Based on our historical records, temperatures in Tamarindo 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 records for Tamarindo in August
Browse day-by-day weather records for Tamarindo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tamarindo historical weather extremes in August
The extremes listed below come from historical weather data collected in Tamarindo from 2000 through 2026.
- The warmest day in August was on August 4, 2026, with a maximum of 38°C (100°F).
- On August 12, 2007, Tamarindo saw its coldest August day with temperatures maxing out at 26°C (79°F).
- Tamarindo registered its coldest August night on August 15, 2018, with temperatures dropping to 20°C (68°F).
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 Tamarindo 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! Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Tamarindo in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Tamarindo 3-Day Forecast
More climate data for Tamarindo
Temperature Rainfall Sunshine Humidity
See the full Tamarindo 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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