Visit top-rated & must-see attractions. With a population of about 400,000 people, it covers the whole northwestern section of the country, bordering the Pacific Ocean and … Long range weather outlook for Guanacaste includes 14 day forecast summary: Reviewing the forecast for Guanacaste Over the next 14 days and the average daytime maximum temperature will be around 33°C, with a high for the two weeks of 34°C expected on the afternoon of Sunday 29th. The ineractive map makes it easy to navitgate around the globe. of 2017-2018, see https:/… Consider visiting Guanacaste Region in the months of January, February, March, December, for the best beach weather.Also consider one of our other suggestions for June. Get the forecast for today, tonight & tomorrow's weather for Liberia, Guanacaste, Costa Rica. The perfect time to visit Guancaste is year around. For example, Guanacaste has a dry arid climate as it sits on the lowlands. Get the forecast for today, tonight & tomorrow's weather for Coco Beach, Guanacaste, Costa Rica. Prices for accommodations, etc might be higher during mid December., which is the peak holiday season, but in terms of weather, good choice, probability of rain is higher in Nov. Guanacaste is the driest province of CR, so hopefully, you will have a good trip! If you want to see some info about the most recent, last yr's, Nov. / Dec. / etc. Consider visiting Guanacaste Region in the months of January, February, March, December, for the best beach weather.Also consider one of our other suggestions for October. See the latest Costa Rica enhanced weather satellite map, including areas of cloud cover. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Guanacaste is the warmest and driest of Costa Rica’s seven provinces. June is a hot and slightly rainy time for sunbathing in Guanacaste Region.June is an excellent month for swimming in Guanacaste Region with very warm sea temperatures. The main reason for the diversity in Costa Rica’s weather is the various elevations at which different parts of the country are located. Book your tickets online for the top things to do in Province of Guanacaste, Costa Rica on Tripadvisor: See 105,928 traveler reviews and photos of Province of Guanacaste tourist attractions. Climate and Average Weather in Guanacaste, Costa Rica. Costa Rica will reopen its borders on August 1 for low-risk countries. October is a hot and very rainy time for sunbathing in Guanacaste Region.October is a good month for swimming in Guanacaste Region with warm sea temperatures. We have reviews of the best places to see in Province of Guanacaste. Partly because of its pristine beaches, beautiful coastline and a variety of wildlife. The province of Guanacaste is known as one of the most special areas to visit in Costa Rica. Guanacaste is the Warmest and Driest of Costa Rica’s Seven Provinces . Find what to do today, this weekend, or in December. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! The area of Guanacaste has a number of beautiful beaches, including Playa Conchal and Playa Tamarindo.