The cool season from November to March is by far the best time to visit, with pleasant, mild days, cooler evenings and the occasional rain shower, ideal for the Corniche, souqs and outdoor sights. Spring and autumn shoulder months are warm but manageable, while summer (roughly May to September) is extremely hot and often dusty, with daytime temperatures regularly soaring past 45C, so plan indoor activities and move around in the early morning or after dark.
Kuwait has one of the hottest summers on earth, with daytime temperatures that can exceed 50C and occasional dust storms. In the warm months limit midday time outdoors, carry plenty of water, use sun protection, and plan outdoor sights like the towers, souq and Corniche for the early morning or evening.
Kuwait is a dry country where alcohol is completely banned and society is fairly conservative. Dress modestly, especially at mosques, markets and public places, avoid public displays of affection, and be aware that eating, drinking or smoking in public during daylight in Ramadan is not permitted and can bring a fine.
Kuwait City is built for cars and traffic can be fast and assertive, with busy multi-lane roads and limited pedestrian crossings. Take care when crossing, use ride-hailing or taxis rather than walking long distances, and be patient in heavy rush-hour and weekend traffic.