Old Man Bay Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Old Man Bay, Cayman Islands. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.

Old Man Bay has a notably wet climate with abundant precipitation, recording 1055 mm (42 in) of rainfall per year. It does, however, have a distinct dry season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The seasons in Old Man Bay, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 224 mm (8.8 in) of precipitation. This rainfall is distributed across 17 rainy days.

October, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 248 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 Old Man Bay Temperature page.

Old Man Bay's average annual precipitation is 1055 mm (42 in). Let's compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

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.

• "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 Old Man Bay's weather, including sunshine hours, humidity levels, and temperature data, visit our Old Man Bay Climate page.