At least sixteen people are dead and fifteen missing following mudslides in Costa Rica caused by heavy rains.
- South Korea signs free trade agreements with the Central American countries of Costa Rica, El Salvador, Honduras, Nicaragua, and Panama to eliminate duties on about 95% of traded goods and services.
- Twelve people, including all 10 American passengers, are killed when their single-propeller plane crashes in a mountainous area near Punta Islita, in Guanacaste Province, Costa Rica. The pilot was former President Laura Chinchilla's cousin.
- Costa Rica is hit by a 6.5 magnitude earthquake at Jaco near the capital San Jose. No immediate reports of casualties or damage.
- In Nicaragua, flooding from Tropical Storm Nate, kills at least fifteen people. In Costa Rica, the storm kills at least seven people with fifteen missing.
- Nicaragua deploys its military to help close its southern border in a dispute with Costa Rica over the passage of Cuban migrants on their way to the United States. Nicaragua's government said Costa Rica's decision to grant seven-day transit visas to 1,200 Cuban migrants who entered the country through Panama, "violated national sovereignty". Nicaraguan troops and riot police fired tear gas at people attempting to enter in what Costa Rica called a "humanitarian crisis".