Located in the windward part of the Caribbean’s archipelago, Barbados enjoys a tropical, oceanic climate with hot and humid conditions that persist year-round. The country enjoys an average temperature of 26.8°C, with no drastic changes in either seasonal or daily temperatures. Weather seasons can be classified as either wet or dry, with the wet season coinciding with the Atlantic hurricane season, which runs from June to November. Monthly average rainfall ranges from a peak of approximately 168.4mm during the wet season, to a low of approximately 39 mm, during the dry season (December to May). Weather during the dry season generally includes warm days, cool nights and relatively low rainfall. The wet season is characterised by high humidity, low wind speeds and high rainfall. Maximum air temperatures are experienced during the wet season, peaking in September–October, with cooler temperatures occurring during the dry season. Barbados’s climate is heavily influenced by the El Niño Southern Oscillation (ENSO). The El Niño phenomena brings hotter and drier conditions during the months of June to August while La Niña brings colder and wetter conditions to the region. These phenomena have been historically the main determinants of the severity of weather events in the country.
- Mean annual temperatures have increased from 0.6°C at an average rate of 0.14°C per decade since 1960.
- Annual average coastal water temperatures varied from 26°C to 29°C.
- Average monthly relative humidity varied between 75% in March to 83% in November.
- Average monthly rainfall varied between 37.4 mm in February and 185 mm in November
- Mean annual rainfall increased (for the time period 1960-2010), with peak values of over 1600 mm occurring in 2004, 2005 and 2010.
- Mean rainfall over Barbados increased during the months of September to November and by 12.9 mm per month (6.2%) per decade since 1960, but this increase is not statistically significant. This increase is offset partially by decreases of around 4.0 mm per month (2.1%) per decade during the months of June to August.
- There are insufficient daily rainfall records available to identify trends in daily rainfall extremes.