August · Costa Rica
Best time to visit Tamarindo in August Weather, crowds & prices
Weather in Tamarindo in August
Average temperature 28°C, 128 mm of rain, about 20 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
6.8/10
Ranked #6 of 12 months
- Avg temp
- 28°C
- Rainfall
- 128 mm
- Humidity
- 82%
- Days with 6h+ sun
- 20
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Tamarindo scores 6.8/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 28°C, 128 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Tamarindo is Guanacaste's surf-and-sunset beach town with leatherback nesting and estuary wildlife nearby. Best window: the drier months outside peak monsoon.
August in Tamarindo: mixed conditions, plan around the weather
Days in August average 28°C (82°F) and humidity near 82% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
128 mm of rain makes this a wet month here, though with about 20 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 6.8/10 on the same scale — 6th of 12 months, versus 9.9/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, January is materially better in Tamarindo — 3.1 points higher on the same scale.
Frequently asked
- What is the weather like in Tamarindo in August?
- In August, Tamarindo averages 28°C, 128 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is August a good time to visit Tamarindo?
- August earns a 6.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Tamarindo in August?
- Expect about 128 mm of rain in August. Average humidity is 82% and there are about 20 days with 6+ hours of sunshine.
Curated in Tamarindo
Tickets & experiences
Things to do in Tamarindo
Tamarindo, Costa Rica. Live activities and tours from GetYourGuide, matched to this destination.