If your visit to Al-Diwaniyah is planned for the summer season (June–August), sun protection should be your top priority. Choose light, loose-fitting clothing in light colors made from natural fabrics such as linen or cotton. Be sure to bring a wide-brimmed hat, high-quality sunglasses, and sunscreen with a high SPF 50+. Closed-toe shoes are preferable to protect your feet from the scorching ground and dust.
For a trip during the winter period (December to February), you should prepare for cool evenings. It is recommended to bring a light jacket, blazer, or thick cardigan, as nighttime temperatures in Iraq can drop quite low. During the transitional seasons—spring and autumn—it is best to dress in layers to easily adapt to significant diurnal temperature fluctuations.
Regardless of the time of year, always keep a reusable water bottle with you. The region's dry climate requires constant hydration. It is also worth noting that visiting the city in July and August can be physically taxing due to the extreme heat, so if possible, plan your trip for the milder months.