Carrillo Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Carrillo, Guanacaste, Costa Rica. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's explore all the details to give you a full picture.

Carrillo has a notably wet climate with abundant precipitation, recording 2779 mm (109 in) of rainfall per year. It does, however, have a distinct dry and rainy 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 Carrillo, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 465 mm (18 in) of precipitation. This rainfall is distributed across 21 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 13 mm (0.5 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 167 hours of sunshine in this period. During the driest month February you can expect a temperature of 32°C (90°F). For more detailed insights into the city's temperatures, visit our Carrillo Temperature page.

Explore Carrillo's Historical Precipitation: 1976-2026

Browse day-by-day precipitation records for Carrillo spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.

Historical weather Temperatures Precipitation

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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.

Carrillo vs World: Rainfall Compared

Carrillo's average annual precipitation is 2779 mm (109 in). Let's compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.

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

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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