Currency
The currency in Costa Rica is the Colon. Exchange Rate may range between ¢540 to ¢560 Colones to a US Dollar. US Dollars and credit cards (mainly Visa and Master Card) are widely accepted in larger cities, hotels and stores; ATMs and banks are available mostly everywhere, except for remote areas with little development. Thus, when traveling to more rural areas or shopping and dining at more local places make sure to have some Colones with you.
Language
Spanish is the national language of Costa Rica. However, just like every Spanish speaking country, the Costa Ricans speak Central American Spanish and also have their own dialect and twist. Surprising to some Spanish speaking foreigners, Costa Ricans usually use the respectful “usted” form when addressing each other and when they do use the familiar form, instead of tu they use vos. Ticos also love to use nicknames as terms of endearment and never mean to be offensive. Common nicknames are gordo (fatty) or flaco (skinny) even if you are only slightly gordo or flaco. If you are actually gordo or flaco, and people really like you, you might receive a special name like repollito (little cabbage) or palito (little stick).They are amused and delighted when foreigners try to speak Spanish, especially when they include tiquismos, expressions that are particular to Costa Rican or Central American culture. Ticos have patience for beginners and will encourage them, so do not be shy and test your Spanish or tiquismos! Non-Spanish speakers should not worry, although Spanish is the primary language, many businesses and hotels around San Jose and resorts throughout the country also speak English.
Weather
Costa Rica benefits from an ideal tropical climate. The average temperature is 70°F (21°C) in the highlands and ranges from the high 70´s to the low 90´s (21 to 28°C) in the lowlands. Costa Rica does not have four defined seasons; its seasons are rather defined by the amount of rainfall during a particular time of year. The rainy season goes from May to November and the dry season lasts from December to April. However, even during the rainy season mornings are often bright and sunny. Temperatures vary little throughout the year; the main influence on temperature is altitude. Always pack an umbrella or raincoat wherever you go, just in case!