Runaway Bay Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Runaway Bay, Trelawny, Jamaica. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let's break down all the details for a clearer picture.
Runaway Bay has a relatively rainy climate with high precipitation levels, averaging 1242 mm (49 in) of rainfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Runaway Bay shows significant variation throughout the year. Expect 174 mm (6.9 in) of precipitation during the wettest month October, distributed over 16 rainy days.
In contrast, February offers drier and sunnier days, with around 51 mm (2 in) of rainfall over 6 rainy days.
October, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 217 hours of sunshine in this period. During the driest month February you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Runaway Bay Temperature page.
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Runaway Bay's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Runaway Bay spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Jamaica: City Comparison
The map below shows the annual precipitation across Jamaica. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Runaway Bay vs World: Rainfall Compared
Runaway Bay's average annual precipitation is 1242 mm (49 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Runaway Bay's weather, including sunshine hours, humidity levels, and temperature data, visit our Runaway Bay Climate page.
