Costa Rica in August
August is Costa Rica's 9th-best month (rank 9 of 12): its 10 destinations average 61/100, led by Monteverde at 67 — 27°C and 25 rainy days — while Nosara is warmer at 37°C and scores 62.
#9 of 12 months for Costa Rica · 10 destinations · updated September 2026 · climate normals from ERA5 reanalysis
🇨🇷 Costa Rica, month by month
61/100 in AugustWhere in Costa Rica in August
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means August is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Costa Rica in August
- Arribada at Ostional · Nosara · 1 Jul – 31 Dec (usually)
- Humpback whales · Jacó · 15 Jul – 15 Nov (usually)
- Olive ridley nesting · Jacó · 15 Aug – 15 Dec (usually)
- Green turtle nesting · Tortuguero · 1 Jul – 31 Oct
- Afro-Costa Rican culture parades · Puerto Viejo · 20–31 Aug (usually)
- Romeria to Cartago · San José · 25 Jul – 2 Aug
- Humpbacks off the headland · Manuel Antonio · 15 Jul – 31 Oct (usually)