The country's tropical climate divides clearly into a rainy season and a dry season. The summer monsoon brings heavy rains to most of the country from May to October, and the winter monsoon brings cooler and drier air from December to February. The hottest time of year is April and May, although there is little variation in temperature all year round. Manila and most of the lowland areas are hot and dusty from March to May, when temperatures can rise to around 99°F (37°C).However, there are variations in climate according to region, such as along the eastern seaboard, where the rainy season generally runs from December to March. Also, it's generally dry when the rest of the country is at its wettest. Average sea-level temperatures rarely drop below 80°F (27°C) so swimming is possible year-round, providing the ocean is calm. Tropical storms and typhoons are possible between July and October.The best time to visit the Philippines is between November and April. However, this is also the peak tourist season, meaning flight and accommodation prices will be higher. The country is particularly crowded during Easter. Travellers should note that weather has become less predictable in the Philippines in recent years.