People know it is going to rain but want to know if their whole day or week will be wasted. The truth is that when it rains in Costa Rica, it can come down very hard but it usually doesnt last for too long. A typical day in the rainy season starts off beautiful and sunny, with clouds starting to build around mid day, and then heavy rain or thunderstorms come in the late afternoon or evening. A storm might last only an hour or two, but it could dump a couple of inches in that time. Other times it can be cloudy and trying to rain all day but never really amount to a storm. Heres another chart with more detail on what you can expect for rainfall each month. What Does the Chart Mean Similar to previous chart, this one shows December to April seeing very little rain. The rain then really picks up in May, drops slightly in July, and then intensifies in September and October. Keep in mind, though, that like we said, rain often comes all at once in a short burst of time. Eight to 1. 0 inches spread out over the course of a month isnt really that much, especially when you consider that one storm event can drop an inch or two. Takeaways. Weve given you a lot of detail about the weather in Costa Rica, but heres what you really need to know. The weather forecast isnt that reliable so dont worry too much about what your weather app says. If you travel during the dry season of December to April, youll see little if any rain unless youre visiting the Caribbean coast where rain is much harder to predict. If you travel during the rainy season of May to November, its likely youll encounter some rain. But that doesnt mean it will rain all day every day of your vacation. More likely, youll have dry, sunny mornings and rain in the afternoon or evening. The only time of year where you are likely to see more rain than that is September and October. These are the rainiest months on the Pacific Coast and in the mountains so it is best to avoid them if you can. If you have no choice but to take vacation in September and October, the good news is that this is the driest time of year on the Caribbean coast so places like Tortuguero, Puerto Viejo de Talamanca, and Cahuita are perfect. Tips for Traveling During the Rainy Season. First off, if youre traveling during the rainy season, especially the hedge months of May to August, know that in our opinion, this is one of the best times of year to visit. The rainforest is nice and green, there are fewer crowds, and you can get better deals. You can read more of our reasons for why we love the rainy season here. Waterfall in the mountains near Dominical looking green and gorgeous in the rainy season. There are a few things to keep in mind when visiting Costa Rica in the greener months to ensure you have a fantastic trip Be flexible with your plans. Dont schedule all your activities in advance if they are weather dependent. That way, if its pouring rain, you can swap out a day at the beach for a visit to a waterfall, which is just as nice in the rain. Get in your activities in the morning when it is far less likely to rain. Be prepared for the rain and youll enjoy yourself a lot more. There are certain things youll want to pack for waterproofing like a raincoat or poncho and dry bags. Be sure to read our packing tips here. We hope that this post puts your mind at ease with Costa Ricas seemingly erratic weather. When you see the data, it is easier to see the trends and plan your travel to avoid the rainiest times of year. Want to learn more to get ready for your trip Check out these posts.