The Monteverde Biological Station is located at the highest point of the Tilarán Mountain Range, between 1400 and 1800 m above sea level. This elevation influences its weather, creating a microclimate with very distinctive characteristics since it is affected by the Pacific Ocean – some 80Km to the West as the crow flies. The Gulf of Nicoya lies between the Pacific Ocean and the station, about 30Km away and with an approximate width of between 15 and 20Km. The Caribbean Sea also influences the weather pattern due to the elevation at which the station is and to the location of this body of water at about 145Km due East.
A thick tropical cloud forest with 25m tall trees in average, but which height is directly influenced by wind action. As a result, there is an area of elfin forest where the wind is very strong and the maximum height of the vegetation is 4m; whereas in areas just a few meters away, trees easily surpass 25m in height.
The area is very wet, with only two well defined seasons: Dry or Summer, from the end of December to mid May; and Wet or Winter, from mid May to the end of December. The lowest temperatures of the year occur from December to February (8 to 10 degrees Celsius), while the hottest time of the year is from June to October with a high of 27°C.