NEARBY - LIST. 1  Little Switzerland, North Carolina (7 mi / 12 km) 2  Glenwood, North Carolina (12 mi / 20 km) 3  Marion, North Carolina (13 mi / 21 km)  Eskota, North Carolina (14 mi / 23 1  km) Glen Alpine, North Carolina (14 mi / 23  km)
During June and July, rain showers pause briefly, and Costa Rica's forests burst with green foliage. While planning your trip, keep in mind that the weather varies by region. In the thick forests of the Caribbean Sea coast and Northern Plains, expect high humidity and temperatures ranging between the 70s and high 80s year-round.
September Weather. The weather in Costa Rica during the month of September is one of extremes. Generally the Pacific side is at its rainiest, while the Caribbean side is experiencing the best weather of the year. The Northwest Pacific is the driest area on the Pacific side. Temperatures will be in the low to mid 80s during the day and a little cooler in the evening.