Speightstown Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Speightstown, Barbados. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.
Speightstown has a relatively rainy climate with high precipitation levels, averaging 1099 mm (43 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The seasons in Speightstown, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 162 mm (6.4 in) of precipitation. This rainfall is distributed across 16 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 33 mm (1.3 in) over 9 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 237 hours of sunshine in this period. During the driest month February you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Speightstown Temperature page.
Explore Speightstown's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Speightstown spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Barbados: City Comparison
The map below shows the annual precipitation across Barbados. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Speightstown vs World: Rainfall Compared
Speightstown's average annual precipitation is 1099 mm (43 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Climate change is affecting precipitation patterns worldwide, including Speightstown:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Speightstown's weather, including sunshine hours, humidity levels, and temperature data, visit our Speightstown Climate page.
