Weather in Costa Rica All countries Weather in Costa Rica Weather in Costa Rica by months: JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember Weather by city City Now Sea water Rain Wind Avellanas Beach +29°C +30°CPlaya Avellanas 5% 3 m/s Guiones Beach +30°C +30°CPlaya Guiones 3% 3 m/s Carrillo Beach +29°C +30°CPlaya Carrillo 4% 2 m/s Cocles Beach +28°C +30°CPlaya Cocles 50% 1 m/s Conchal Beach +29°C +30°CPlaya Conchal 45% 2 m/s Pelada Beach +29°C +30°CPlaya Pelada 5% 2 m/s Potrero Beach +29°C +30°CPlaya Potrero 27% 2 m/s Santa Teresa Beach +29°C +30°CPlaya Santa Teresa 35% 3 m/s Playa Jacó — +30°CPlaya Jacó — —