Newcastle Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Newcastle, Jamaica. 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.
Newcastle has a notably wet climate with abundant precipitation, recording 1079 mm (42 in) of rainfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, October receives substantial rainfall, averaging 165 mm (6.5 in) of precipitation, recorded across 16 rainy days.
In contrast, the driest month, February brings less rainfall, with 46 mm (1.8 in) over 6 rainy days.
October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 226 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 Newcastle 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 Newcastle's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Newcastle 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
Newcastle vs World: Rainfall Compared
Newcastle's average annual precipitation is 1079 mm (42 in). Let's compare this to some popular worldwide tourist destinations:
Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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.
- "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 Newcastle's weather, including sunshine hours, humidity levels, and temperature data, visit our Newcastle Climate page.
