Puerto Manzanillo Weather in August
Puerto Manzanillo in August sees high temperatures, with highs around 29°C (84°F) and overnight lows of 24°C (75°F). With the rainy season in full effect, expect around 394 mm (16 in) of rainfall and regular showers throughout the month.
Rainfall in Puerto Manzanillo in August
Puerto Manzanillo is in the rainy season in August, with rain on around 23 days and an average of 394 mm (16 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in Puerto Manzanillo in August
In August, expect high temperatures in Puerto Manzanillo, with highs of 29°C (84°F) and lows of 24°C (75°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Puerto Manzanillo in August
The month brings about 146 hours of sunlight, offering a comfortable mix of sun and rainy moments.If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Puerto Manzanillo. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Puerto Manzanillo's climate page.
Puerto Manzanillo Temperature in August
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
76%
Precipitation
394 mm (16 in)
Rainy days
23 days
Humidity
87% *
Sunshine
146 hours *
Percentage Sunshine
*
Daily Historical Temperatures
35-year average (1984-2025)
Based on our historical records, temperatures in Puerto Manzanillo typically stay consistent throughout August, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in August
Daily Historical Precipitation
35-year average (1984-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Puerto Manzanillo in August
Browse day-by-day weather records for Puerto Manzanillo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Puerto Manzanillo historical weather extremes in August
Based on 24 years of weather observations in Puerto Manzanillo between 2001 and 2025, these are the recorded extremes.
- Puerto Manzanillo recorded its highest August temperature of 36°C (97°F) on August 29, 2015.
- The lowest daytime temperature in August was 25°C (77°F), recorded on August 5, 2004.
- Puerto Manzanillo registered its coldest August night on August 28, 2016, with temperatures dropping to 19°C (66°F).
- The heaviest August precipitation occurred on August 16, 2001, when 273 mm (11 in) of precipitation fell.
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 →
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What to Wear in Puerto Manzanillo 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Puerto Manzanillo 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 Puerto Manzanillo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Puerto Manzanillo climate overview or explore weather in Costa Rica.
