Culebra Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Culebra, Guanacaste, Costa Rica. 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.
Culebra is known for its substantial rainfall, with annual precipitation reaching 1574 mm (62 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Rainfall & Rainy Days
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 336 mm (13 in) of precipitation, recorded across 21 rainy days.
In contrast, the driest month, February brings less rainfall, with 3.2 mm (0.1 in) over 5 rainy days.
October, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 171 hours of sunshine in this period. During the driest month February you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our Culebra Temperature page.
Daily Historical Precipitation
Average daily rainfall for each day of the month based on long-term records. 40-year average (1976-2025)
Average precipitation in August
Explore Culebra's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Culebra spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Costa Rica: City Comparison
The map below shows the annual precipitation across Costa Rica. You can also select the different months in case you are interested in a specific month.
Culebra vs World: Rainfall Compared
Culebra's average annual precipitation is 1574 mm (62 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
Climate change is affecting precipitation patterns worldwide, including Culebra:
- 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 Culebra's weather, including sunshine hours, humidity levels, and temperature data, visit our Culebra Climate page.
Culebra Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Culebra - and find the best time to visit.
Culebra 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Culebra climate overview or explore weather in Costa Rica.
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