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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the True North Brief Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Live conditions for La Fortuna show a typical tropical day: high around 31°C, low near 22°C, with a chance of afternoon showers. This pattern holds year-round, though the dry season (December–April) delivers more sun and less rain than the wet season (May–November).
What drives La Fortuna’s weather?
La Fortuna sits at the base of Arenal Volcano in northern Costa Rica’s lowland rainforest, giving it a hot, humid climate with little seasonal temperature variation. Daytime highs consistently reach 30–33°C, while overnight lows stay near 20–23°C. Rainfall is abundant—about 4,500 mm annually—with the heaviest downpours from September to November. The national forecasting service provides weather warnings for sudden flooding.
Best time to visit for dry conditions
Travelers who prefer clearer skies should aim for the dry season (December–April), when morning sunshine is common and afternoon storms are shorter. Even then, brief tropical bursts can occur. Those interested in Canada weather comparisons will find La Fortuna far warmer than even southern Ontario in winter. For a closer look at microclimates, compare with monteverde weather or tamarindo weather. If you check la fortuna weather by month, expect little change in temperature but a big shift in rainfall.
Does it rain every day in La Fortuna?
Nearly every day receives some rain, especially during the wet season. Afternoon showers are the norm, often intense but brief. Even in the dry season, a quick downpour is possible every few days. Check la fortuna weather radar for real-time storm movement.
What is the humidity like in La Fortuna?
Humidity remains high year-round, typically 75–90%. Combined with the heat, it can feel muggy, especially before rain. Wearing light, quick-dry clothing is recommended. For hourly details, consult la fortuna weather hourly forecasts.
How does La Fortuna compare with Tamarindo or Monteverde?
Tamarindo weather is much drier, with a distinct dry season and less rain overall. Monteverde weather is cooler due to higher elevation (1,440 m). La Fortuna is warmer and wetter than both, making it a classic rainforest experience.