This page also contains general Jaco weather and climate information and a brief dicussion of seasons, rainfall and avearge temperatures.
DoceLunas has the most accurate Jaco Costa Rica weather forecast. It is based on the Weather Underground forecast for Puntarenas, which is about 50km to the north of Jaco. Weather Underground is a great site and has the most accurate forecast data for this region, but if you check the RSS feed on their Jaco forecast you will see it is actually the weather forecast for Chacarita, which is inland and far to the south. Temperatures in Chacarita are typically lower than temperatures in Puntarenas and Jaco and rainfall is typically quite a bit higher.
This is the Playa Jaco Costa Rica weather forecast page - click for main Jaco Costa Rica facts, map, tours, and nightlife page.
We also provide general information on Jaco weather and climate in Jaco Costa Rica. To find out more about seasons, average rainfall, high temperatures and low temperatures, humidity and more useful Jaco weather facts for travel planning, please visit our Jaco Costa Rica weather page for detailed weather information or read on below for a summary.
Temperatures can reach the mid 90's in downtown Jaco in December through March. The valley cools off quickly when you leave the downtown/beach area. Temperatures at the base of the mountains a mile from downtown can be as much as 10 degrees cooler. Under a tropical sun, the shade of the mountains and the trees make more noticeable difference than they would in a temperate climate.
In the green season, May-October, daytime highs are typically in the 80s or high 70s. In both seasons, overnight lows may dip into the high 60s.
Downtown Jaco Costa Rica is more developed that the surrounding valley and the black sand beach, streets, parking lots, and buildings soak up the heat from the tropical sun. Daytime highs reach the mid 90s downtown because of the heat sink effect of development.
Jaco Hotel DoceLunas is one mile from the beach in the shade at the base of the largest mountain rising from the Jaco valley, Cerro Puntudo, towering over 1,000 feet above the hotel. The shade gives us our own Jaco weather.
It is much cooler here. At mid-day in dry season, it can be as much as ten degrees cooler here than in downtown Jaco even though we are only 100 feet higher. This is partly because of the mountain, partly because we have preserved the canopy throughout the hotel so the grounds are shady, dappled with sun rather than baked, and partly because we are surrounded by fields and jungle, not pavement. You will love it.
Whatever the weather in Jaco Costa Rica, its always cooler in the shade at Jaco Costa Rica hotel DoceLunas. Find out more about our beautiful hotel in Jaco Costa Rica.