Playa Hermosa Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Playa Hermosa, Guanacaste, Costa Rica. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.
Playa Hermosa has a relatively rainy climate with high precipitation levels, averaging 1536 mm (60 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry and rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
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 331 mm (13 in) of precipitation, recorded across 21 rainy days.
In contrast, the driest month, February brings less rainfall, with 3.1 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 32°C (90°F). For more detailed insights into the city's temperatures, visit our Playa Hermosa Temperature page.
Daily Historical Precipitation
32-year average (1987-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Playa Hermosa's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Playa Hermosa 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.
heavy rainfall
high
moderate
low
almost none
Playa Hermosa vs World: Rainfall Compared
Playa Hermosa's average annual precipitation is 1536 mm (60 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.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
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.
- 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 Playa Hermosa's weather, including sunshine hours, humidity levels, and temperature data, visit our Playa Hermosa Climate page.
