The country generally experiences two seasons, one of which contains significantly more rainfall. This period is known as the “rainy season” and lasts from June to November. In contrast, the “dry season” lasts from December to May. Annual rainfall ranges from 1,000 to 2,300 mm (40 to 90 inches). From December to May, average temperatures range from 21 to 31°C, while from June to November they range from 23 to 31°C.
On the Köppen climate classification scale, most of Barbados is classified as having a tropical monsoon climate (Am). However, light breezes of 12 to 16 km/h (7 to 10 mph) prevail throughout the year, giving Barbados a temperate tropical climate.
Unusual natural hazards include earthquakes, landslides and hurricanes. Barbados is often spared the tropical storms and hurricanes of the region during the rainy season. Due to its location in the southeast of the Caribbean, the country lies just outside the main hurricane strike zone. On average, a major hurricane strikes about every 26 years. The last time a hurricane caused significant damage in Barbados was Hurricane Janet in 1955. In 2010, the island was hit by Hurricane Tomas, but it caused only minor damage throughout the country.