San José sää — toukokuu

Monteverde-forum threads asking if the rainy season is tolerable get a consistent yes, posters describing rain as far less disruptive inside the cloud forest reserve itself, where the dense canopy offers real cover from all but the heaviest downpours. Evenings are called genuinely cool, into the 50s Fahrenheit, and posters are consistent that damp plus cool at elevation feels noticeably colder than the number alone suggests, a fleece under a proper rain shell the standard combination. Big downpours are real and worth planning for, ponchos recommended over umbrellas given the wind that often comes with heavier systems. Regulars call May a genuine transition month - greener, mistier and quieter than the sunnier high-season peak, with forest wildlife activity several posters call noticeably better once the rains properly return. The record: 25.1C days feeling like a punishing 28C, 18.4C nights, an extraordinarily high 251mm across over 23 days and 83 percent humidity.

Forum posters generally rate August as a good month to visit Costa Rica overall, describing a typical lowland or coastal day as sunny and hot in the morning with rain, sometimes heavy, moving in during the afternoon or evening - a pattern posters say leaves the landscape noticeably greener. San Jose itself, at over 1,100m elevation, runs noticeably milder than those hotter coastal descriptions, with comfortable daytime highs rather than genuine heat. Posters are direct that late August specifically can turn genuinely rainy, and while Pacific-slope rain is usually confined to afternoon and evening, posters emphasize there's no guarantee during rainy season. One visitor's second-half-of-August trip found mostly good weather, though posters are consistent that predicting exact conditions for specific dates isn't really possible. Posters generally rate August as workable and even good for a San José-area visit, rain gear recommended regardless.

February is deep in Costa Rica's dry season, and San José sits at altitude, so it runs cooler than the coasts — near 26°C by day, dropping to 17 at night. "Dry season" is the forum's own phrase and their own caveat: it does not mean it cannot rain, and eight wet days is the record's answer. Regulars pack an umbrella regardless. Two regional notes matter more than the capital's own weather: the Caribbean side is reliably rainier and cloudier than the Pacific in February, and Guanacaste gets serious wind this month while La Fortuna, Monteverde and Manuel Antonio generally do not.