This month in Costa Rica
Costa Rica Weather in August
Planning August in Costa Rica? The daily record averages 87.2°F highs and 76.6°F lows, with 8.73 inches of rain over the month. The August 14 to 21 fare from Omaha was $651 on American through Chicago and Miami. Daylight on the 15th runs 5:34 am to 6:02 pm (12.5 hours), and the August time difference from Omaha is 1 hour (behind).
Photo: Ann Lane
High / low
87° / 77°F
Rain
8.7 in
for the month
Humidity
81%
Wind
6 mph
Hurricane season
In season
Fare from OMA
$651
Aug 14, 2027–Aug 21, 2027
Verdict
August in Costa Rica: 8.73 in rain, 87.2°F average high; peak hurricane window.
Rule: rain, comfort band and hurricane timing, explained on the method page.
vs last / next month
- vs July: same highs, 1.4 in wetter, 1 pts less humid
- vs September: 1°F warmer, 3.7 in drier, 3 pts less humid
- August sky: 79.2% cloud, 4.97 kWh/m²/day solar. July: 79.4% / 4.95; September: 81.1% / 4.92 (NASA).
- 2027-08-15: sunrise 05:34, sunset 18:02; 12.46 hours of light, changing -16 minutes across August. July daylight: 12.67 hours; September: 12.18. Omaha clock offset: -1 hours.
- August water: 84.2°F (NOAA 2015–2024). July water: 84.2°F; September: 84.2°F. Dew point: 74.4°F in August, 74.5°F in July, 74.8°F in September (NASA 2001–2025).
- Fares: $651 in August versus $656 in July; September came in at $651.
NASA POWER 2001–2025 means, Tamarindo, Guanacaste, Costa Rica (Pacific coast).
Holidays & events
- August holidays on the Costa Rica MTSS feriados list: Dia de la Virgen de los Angeles (non-mandatory pay) on August 2; Dia de la Madre / Asuncion on August 15. August crowd levels: no source, so left out.
Pack for August (rule shown)
- Packable rain jacketrain 8.7 in > 3 in
- Quick-dry shoes, not just sandalsrain 8.7 in > 6 in
- Breathable fabrics, extra topshumidity 81% ≥ 80%
- Travel insurance confirmation and the resort's weather policyinside hurricane season
- Sunscreen for middayAugust solar energy 4.97 kWh/m2/day is under our 5.0 line, so the rash guard is optional (daily-mean UV 2.07).
Flight detail, OMA to LIR
$651
American, 2 stops via ORD/MIA, 16h 43m out. 20 itineraries. Observed Oct 31, 2026; not a quote.
Guide, sources and the 12-month table: Costa Rica.
August questions
Costa Rica weather: August or the months beside it?
Sources: ignav.com · nhc.noaa.gov · escuelajudicialpj.poder-judicial.go.cr · power.larc.nasa.gov · coastwatch.pfeg.noaa.gov · travel.state.gov · travel.state.gov · power.larc.nasa.gov
From Ann
August in Costa Rica, priced for your week.
Considering August in Costa Rica? Share your dates and budget. Ann checks OMA–LIR flights and places to stay against this 8.73 in rain / 87.2°F climate record.
Photo: Ann Lane