The rainy season usually starts off in mid-May. At that point sporadic rain showers begin during the afternoon and evening hours. As the days pass the rain increases in duration, amounts, and evenings are full of wonderful thunderstorms and beautiful lightening. In the mountain areas flash flooding can suddenly occur during these months. During the rainy season day time temperatures are about 10 to 15 degrees cooler than the dry season but the humidity is much higher. The rainiest month is November but by mid-December the rain is completely gone in most of Panama on the Pacific side.
Climatic regions are determined less on the basis of temperature than on rainfall, which varies regionally from less than 1,300 millimeters (51.2 in) to more than 3,000 millimeters (118.1 in) per year. Almost all of the rain falls during the rainy season, which is usually from April to December, but varies in length from seven to nine months. In general, rainfall is much heavier on the Caribbean than on the Pacific side of the continental divide. The annual average in Panama City is little more than half of that in Colón. Although rainy-season thunderstorms are common, the country is outside the hurricane belt.
^ "Hong Kong innovation minister, Polytechnic University embroiled in Panama Papers leaks: Documents show that Nicholas Yang was involved with two companies set up by the institution through Panamanian law firm Mossack-Fonseca in the British Virgin Islands". South China Morning Post. April 22, 2016. Archived from the original on April 23, 2016. Retrieved April 22, 2016.
One of the newer tourist areas of the city is the area immediately east of the Pacific entrance of the canal, known as the Amador Causeway. This area is currently being developed as a tourist center and nightlife destination. The Smithsonian Tropical Research Institute operates a station and a small museum open to the public at Culebra Point on the island of Naos. A new museum, the Biomuseo, was recently completed on the causeway in 2014. It was designed by the American architect Frank Gehry, famous for the Guggenheim Museum Bilbao and the Disney Concert Hall in Los Angeles. Just outside the city limits is the Parque Municipal Summit. A new convention center called the Amador Convention Center is being built in Amador by CSCEC in a joint venture with a Panamanian company called CCG Cocige. The Panamanian ministry of Tourism hopes for the convention center to house 100 international events annually. There were plans(proposed by Panamanian president Juan Carlos Varela) to build in Amador a campus for the embassy of the People's Republic of China in Panama, however the plans were eventually dropped, due to criticism from the general public and fears that tourists could easily assume that Panama was Chinese territory. Varela in response said that Amador is an area that "must have more value".
^ "Iceland's PM says he will not resign in Panama Papers scandal". Belfast Telegraph. April 4, 2016. Retrieved April 4, 2016. He allegedly sold his half of the company to Palsdottir for one US dollar on 31 December 31, 2009, the day before a new Icelandic law took effect that would have required him to declare the ownership of Wintris as a conflict of interest.
Casco Antiguo displays a mix of architectural styles that reflect the country's cultural diversity: Caribbean, Republican, art deco, French, and colonial architecture mix in a site comprising around 800 buildings. Most of Panama City's main monuments are located in Casco Antiguo, including the Salón Bolivar, the National Theater (founded in 1908), Las Bóvedas, and Plaza de Francia. There are also many Catholic buildings, such as the Metropolitan Cathedral, the La Merced Church, and the St. Philip Neri Church. The distinctive golden altar at St. Joseph Church was one of the few items saved from Panama Viejo during the 1671 pirate siege. It was buried in mud during the siege and then secretly transported to its present location.
The earliest discovered artifacts of indigenous peoples in Panama include Paleo-Indian projectile points. Later central Panama was home to some of the first pottery-making in the Americas, for example the cultures at Monagrillo, which date back to 2500–1700 BC. These evolved into significant populations best known through their spectacular burials (dating to c. 500–900 AD) at the Monagrillo archaeological site, and their beautiful Gran Coclé style polychrome pottery. The monumental monolithic sculptures at the Barriles (Chiriqui) site are also important traces of these ancient isthmian cultures.