Best time to visit Oman
The best time to brave the heat of Oman is between late October and March, when daytime temperatures in Muscat can be expected to be around 30°C (86°F). During the rest of the year the heat and humidity is debilitating, particularly between May and August, except perhaps during these months in Salalah, where light rain tames the heat.
Because Oman is so large and the terrain diverse, the climatic conditions are as varied as the geography. The most popular time to visit is from October to April when the weather is warm and sunny and temperatures range from a very pleasant 25°C (77°F) to around 35°C (95°F) during the day. It is cooler at night, ranging in temperature from 17°C (63°F) to 19°C (66°F).
From May to August, it is very hot and humid at the coastal areas, while the interior generally remains hot and dry. Between May and September, the southern Dhofar region has its own microclimate. Known as the khareef, the area catches the Indian Ocean’s monsoon season and temperatures can be 10-15°C (18-27°F) lower than the rest of the country. Most of the rain falls during the winter months and varies according to the region. Other than in Dhofar, it is rare to see rain between May and November. The coastal areas and the interior plains average 20-100mm (0.8-4 inches) of rainfall annually but this can rise to around 900mm (35 inches) in the mountains. It is common to see snowfall on the highest mountain peaks during the winter.