When packing for Huelva, it is important to consider that summer here is hot and sunny, so for a trip from June to September, light clothing made from natural breathable fabrics, such as cotton and linen, is ideal. Since temperatures often rise above 30°C in July and August, and rain is virtually absent, be sure to put a hat, high-quality sunglasses, and high SPF cream in your suitcase. Also, don't forget swimwear if you plan to relax on the coast.
Winter and the off-season in this region of Andalusia are mild but require a more thoughtful wardrobe. From November to April, it is best to stick to the principle of layering: it can be warm during the day, while in the evening the temperature drops to 7–9°C. Take jumpers, jeans, and a mid-season jacket or windbreaker with you. Although there is little rainfall in Huelva, short-term rains are possible in spring (especially in March and April), so a compact umbrella or a light raincoat will not be amiss.
Regardless of the season, the main element of your luggage should be comfortable walking shoes. Huelva is a city that is pleasant to explore on foot, so reliable sneakers or flat sandals will ensure comfort during long walks. If you plan to visit restaurants or evening events, it is worth packing one smart casual outfit to match the local relaxed yet elegant atmosphere.