The climate of Namibia is generally a hot and dry one. Rainfall occurs exclusively in the summer months, between November and February, when some humidity and heavy thunderstorms are sure to be expected.Even during the rainy season, thunderstorms tend to be localised and occur more in the centre and east of the country, while the desert receives markedly less rain. Summer is very hot and the Namib Desert should be avoided at this time as temperatures are often above 104ºF (40ºC) and extremely uncomfortable.The coast is cooler and often foggy in summer. Average winter temperatures during the day range between 64°F (18°C) and 71°F (22°C) and the days are pleasantly warm and sunny. But the nights can be very cold, especially in the desert, with frost covering the ground in the mornings.The best time to visit Namibia is during the winter months from March to October. April and May are green and fresh, while June and August are the best for game viewing as animals tend to congregate around waterholes, making them easy to spot. September and October are also fantastic for game viewing, but it can be very dry and dusty.