The best time to go to Wadi Kabir is generally during the cooler months, from October to April.
During this period, the weather is much more pleasant, with average temperatures ranging from the low 20s to high 20s Celsius. This makes it ideal for exploring the area comfortably, whether you're visiting the Sultan Qaboos Grand Mosque or enjoying the Muttrah Corniche, which are both easily accessible from Wadi Kabir. The evenings are also cooler, great for dining outdoors.
For those planning activities that involve a lot of walking or being outdoors, such as visiting the historic Muttrah Souq or exploring the museums in Old Muscat, these months provide the most comfortable conditions. The peak tourist season also falls within this window, meaning more tours and services are readily available.
Conversely, the summer months from May to September can be extremely hot and humid, with temperatures often exceeding 40 degrees Celsius.