The Indoor Attractions Are the Real Backbone
Dubai's theme parks and aquariums (IMG Worlds of Adventure, Dubai Aquarium, Museum of the Future's interactive sections) are air-conditioned and genuinely well-built — for roughly eight months of the year, plan your days around these rather than outdoor activities during peak heat hours.
Malls Are Not a Compromise Here — They're Entertainment
Dubai Mall and Mall of the Emirates both include serious attractions (an aquarium, an ice rink) alongside shopping, so a 'mall day' with kids is a genuine plan here, not a fallback.
Beach Time Works Best Early or Late in the Day
Public beaches and beach clubs are family-friendly, but midday sun for much of the year is intense enough that mornings or late afternoons work far better with young kids than a full day out.
Timing the Trip Matters More Than Usual
November through March is the realistic family-travel window — outside of it, the heat genuinely limits how much outdoor time is workable with kids, regardless of how good the indoor attractions are.
Dubai with family works well if you build the day around indoor attractions and early/late beach time rather than expecting an all-day outdoor rhythm — and it works far better between November and March than in summer.