Pico Bonito: Honduras' enchanting jungle adventure awaits
Explore Pico Bonito, Honduras' largest national park. Discover diverse wildlife, exhilarating activities, and lush landscapes. Your jungle adventure begins here!
This page shows both the average monthly rainfall and the number of rainy days in Guanaja, Bay Islands, Honduras. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.
Guanaja experiences significant rainfall throughout the year, averaging 1370 mm (54 in) of precipitation annually.
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, October receives substantial rainfall, averaging 274 mm (11 in) of precipitation, recorded across 21 rainy days.
In contrast, the driest month, April brings less rainfall, with 25 mm (1 in) over 6 rainy days.
October, the wettest month, has a maximum daytime temperature of 29°C (84°F). During the driest month April you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Guanaja Temperature page.
Average daily rainfall for each day of the month based on long-term records. 38-year average (1982-2025)
Browse day-by-day precipitation records for Guanaja spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
The map below shows the annual precipitation across Honduras. You can also select the different months in case you are interested in a specific month.
Guanaja's average annual precipitation is 1370 mm (54 in). Let's compare this to some popular worldwide tourist destinations:
Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
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.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
For more detailed information about Guanaja's weather, including sunshine hours, humidity levels, and temperature data, visit our Guanaja Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Guanaja - and find the best time to visit.
Temperature Rainfall Water Temp
See the full Guanaja climate overview or explore weather in Honduras.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Pico Bonito: Honduras' enchanting jungle adventure awaits
Explore Pico Bonito, Honduras' largest national park. Discover diverse wildlife, exhilarating activities, and lush landscapes. Your jungle adventure begins here!
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