Whether in Costa Rica or Miami, there are more of them in these tropical or sub-tropical areas and they often grow much larger in these environments.I live in San José, by far an area with more moderate temperatures than the beaches or rain forests, but we still get a ton of these fellows. Unfortunately streets in Costa Rica do not have good drainage and when it rains hard, drains get clogged. You can also reduce your risk of exposure to mosquitoes by wearing long pants, a long sleeve shirt, hat and socks and shoes.Mosquitoes are most active around dusk and dawn. Below are some highlights from an article found in the New York Times about the For more information directly related to health questions and concerns. Tourist come … Some of the symptoms of Dengue include nausea, joint pains, and headaches.Also keep in mind that a case study prepared by Bloomberg company, published on the World Economic Forum website, ranks Costa Rica as the healthier country in the region, even above Mexico and Chile.

There are not many mosquitoes in high altitude destinations such as Poas Volcano, Monteverde, San Gerardo de Dota, and other mountain destinations due to cool overnight temperatures. As Costa Rica is a tropical climate there are mosquitoes year round.

Mosquitoes are more common in beach areas. If you want to read what it is like to have a wife who is "into" bugs, you can  Probably every person who lives in Costa Rica and who is reading this is already rolling their eyes.There are ants here, and I mean ants like nobody's business, and they are everywhere, especially in the house.

However, mosquitoes are rare in other parts of the country due to low temperatures in the night. Yet, unfortunately, there is no prevention for Dengue, which is the most prevalent during the rainy season (May-mid Nov.)

It is the cheaper season because it does rain all the time. Bugs. The Osa Peninsula gets so much rain that travel becomes difficult and many of the lodges shut down in September and October. Larger and more aggressive, many can give a nasty bite. These fellows may serve some useful purpose, but as I don't want to step on one in the night, I send them to their maker.Unless you know your caterpillars, I would suggest leaving them alone while in Costa Rica and especially if you are near the high temperature - high humidity areas. There are not many mosquitoes in high altitude destinations such as Poas Volcano, Monteverde, San Gerardo de Dota, and other mountain destinations due to cool overnight temperatures. The many insects are practically impossible to avoid in most of Costa Rica. Prevent your risk of being bit by closing doors and unscreened windows between 4 PM and 8 AM.

Bring the kids!Serpentario El Mundo de las SerpientesThese big boys are all over Costa Rica including my house. However, they are more prevalent between the months of May through October. I had nothing to fear. Mosquitoes are most active around dusk and dawn. They are definitely more prevalent at the beaches and hotter climates, but can be found anywhere. It also seems a little dark sometimes. Mosquitoes are more common in beach areas. The cleanest houses had them. Use insect repellent with 30 - 50% DEET. Prevent your risk of being bit by closing doors and unscreened windows between 4 PM and 8 AM. Happily, these are not generally found in the San José area where I live but are more often found in the beach and rain forest areas where the temps are much higher. Mosquitoes are more common in beach areas. My housekeeper finds about one each month in our house. Prevent your risk of being bit by closing doors and unscreened windows between 4 PM and 8 AM. Since mosquitoes breed in stagnant water, rainy season (May to end of November) is the worst time of year for mosquitoes.