when is hurricane season in costa rica 2026

Hurricane season in Costa Rica in 2026 runs from June 1 through November 30 for the Atlantic basin, with the Pacific hurricane season running May 15 through November 30. Costa Rica’s weather agencies and regional forecasts also note that the country can still feel indirect effects from storms during that window, especially in late season.

What that means for travel

• Highest overall caution: June through November.
• Most active stretch: Usually October and November , when late-season storms can intensify more quickly.

• Regional timing matters: Costa Rica’s rainy season starts earlier in some areas, but the hurricane-related risk window is tied to the broader Atlantic and Pacific seasons.

Practical take

If you’re planning a trip, the safest planning assumption is that June to November is the hurricane/rainy-risk period in Costa Rica, with the Pacific side opening earlier in mid-May. For 2026 specifically, local reporting says forecasters expect a quieter Atlantic season than average, but not zero risk.

TL;DR: Costa Rica’s main hurricane season is June 1 to November 30 , and the Pacific side starts earlier, on May 15.