As Jacó lies on the seashore, climate is normally humid, with relative humidity around 80%, reaching 90% in June. Temperature is 85–90 °F (24-32 °C) during the day and 75–80 °F (24-26 °C) at night. During the dry season, away from the water, the temperature may consistently reach 95 °F (35 °C) or above.
Jacó lies in a tropical climate zone mainly defined by distinct dry and wet seasons. Generally speaking, August through early December are wet, and late December through early April are dry; the remaining months have irregular rainy spells.
Jacó lies between several mountains, and is neighbored by the beaches of Herradura Bay to the North, and Playa Hermosa to the South. About 35 kilometers north of Jacó, lies the Carara National Park, recognized for its exuberant wildlife and dense rain forest. Carara is home to one of the largest remaining populations of wild scarlet macaws in the country. The ecotourism park Rainforest Adventures, NatGeo´s top ten of adventure trips, is just 5 minutes from the beach and it features an aerial tram through the transitional forest. The Manuel Antonio National Park is located 75 kilometres south of Jacó.
Jacó lies about 100 kilometers (a little less than two hours via Route 34) from the capital San José and an hour and a half from Costa Rica’s primary international airport, Juan Santamaría International, accessed via route 34/27.
Jaco is fairly small, and it’s easy to see the entire town in one day. But you can also just as easily take your time and spend several days exploring, shopping, going to the beach, surfing, dining out, going to bars, and taking tours in the Jaco area. If you have a rental car, a drive along the Western Costa, along the Costanera is very beautiful, and offers many opportunities to stop, take pictures, or find private, secluded beaches. Manuel Antonio, one of Costa Rica’s National Parks, is an hour drive from Jaco, and is nearly a straight shot South along the Costanera highway.
Jaco is not very big, but there are plenty of things to do there. Surfing and boogie boarding are extremely popular, and it’s fairly inexpensive to rent a board for the day. Jaco is known for being one of the best beginner surf spots in Costa Rica for the beach breaks (sand bottom) and good waves during high tides. There are lots of surf camps and surf schools in the area, make sure you choose one that is credible and especially certified to guarantee quality. There are also many shops along Jaco’s main street that offer surfboard/boogie board rentals. Lying out on the beach and swimming are nice. The beach is beautiful, however the black sand at midday is scorching hot. There are some fantastic restaurants in Jaco, including some excellent “sodas”, the local traditional restaurant. At night there are numerous clubs and bars that stay open late.
• Del Mar Extreme. Fitness vacations and sport adventure tours including stand up paddling, stand up paddle surf lessons, mountain biking tours and beachfront fitness classes (yoga, boxing, pilates, TRX, beach boot camp, circuit training, butts and guts and capoeira).