San Juan del Sur Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in San Juan del Sur. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

San Juan del Sur is known for its substantial rainfall, with annual precipitation reaching 1426 mm.

Monthly Precipitation Levels

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

The climate in San Juan del Sur shows significant variation throughout the year. Expect 289 mm of precipitation during the wettest month October, distributed over 21 rainy days.

In contrast, March offers drier and sunnier days, with around 7.2 mm of rainfall over 5 rainy days.

October, the city’s wettest month, has a maximum daytime temperature of 29°C and receives 175 hours of sunshine. During the driest month March you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our San Juan del Sur Temperature page.

Annual Precipitation in Nicaragua

The map below shows the annual precipitation across Nicaragua. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

San Juan del Sur’s average annual precipitation is 1426 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

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.

Sea vs. Land Precipitation

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.

For more detailed information about San Juan del Sur’s weather, including sunshine hours, humidity levels, and temperature data, visit our San Juan del Sur Climate page.