March to May: Temperatures in Muscat start to climb from a comfortable 25°C in March to around 34°C in April, making early spring a pleasant time for outdoor activities before the intense heat sets in. Rainfall is minimal, but this is the best time to witness the greenery in the mountains after the winter rains.
June to August: Summer is extremely hot and dry across most of Oman, with daytime temperatures frequently exceeding 40°C, making outdoor activities challenging. However, this is the high season for Salalah in the south, as the khareef (monsoon) transforms the desert landscape into a lush, green paradise, providing a unique experience despite the high humidity and occasional rain.
September to November: Autumn is a great time to explore Oman. The temperatures become more bearable, cooling down to around 36°C in September and further to 31°C in November in Muscat. The sea remains warm, and the weather is generally pleasant, ideal for beach holidays and outdoor explorations.
December to February: Winter is the peak season for holidays to Oman, especially in the northern regions, due to the mild, pleasant climate, with daytime temperatures hovering around 25°C in Muscat. Nights can be cooler, especially in the desert and mountain areas. It's an excellent time for trekking and sightseeing, with minimal rainfall and comfortable temperatures.