Retalhuleu Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Retalhuleu. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Retalhuleu has a notably wet climate with abundant precipitation, recording 3003 mm of rainfall per year.

Monthly Precipitation Levels

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

Retalhuleu can be quite wet during September, receiving approximately 517 mm of precipitation over 21 rainy days.

In contrast February, experiences much drier conditions, with 28 mm of rainfall, spread across 2 rainy days.

September, the wettest month, has a maximum daytime temperature of 30°C. The city receives 155 hours of sunshine in this period. During the driest month February you can expect a temperature of 32°C. For more detailed insights into the city’s temperatures, visit our Retalhuleu Temperature page.

Annual Precipitation in Guatemala

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

Amsterdam Precipitation Compared World Wide

Retalhuleu’s average annual precipitation is 3003 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.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

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

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

Interesting weather facts

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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