Prague's spring and autumn can deliver a cold morning, warm sunny lunch, river wind, and rain before dinner. Packing one thick outfit is less useful than a small layering system that can change between outdoor walks, heated trams, museums, and naps. Check the forecast each morning and observe the child rather than dressing only by the calendar month.
Build adjustable layers
Start with a comfortable base, add a mid-layer, and carry a wind or rain shell appropriate to conditions. A hat may help in cold wind or sun, depending on season. Choose layers that do not interfere with a stroller harness or carrier position. Check the child's chest or back and general behavior regularly; cold hands alone do not give a complete picture.
Change layers indoors
Trams, metro stations, shops, and museums may be much warmer than the street. Open or remove outer layers soon after entering rather than leaving a sleeping child bundled under a rain cover. Preserve airflow and never drape a blanket over the stroller opening. In a carrier, adult body heat adds warmth, so reassess more often.
Handle rain and wind
Use a fitted, ventilated rain cover and remove or dry it when conditions improve. Waterproof adult footwear matters because careful stroller control is harder when the person pushing is slipping. Riverside and castle viewpoints are exposed; sheltered Old Town lanes may feel warmer. Choose an indoor stop instead of testing the limit of the child's clothing.
Keep car-seat clothing safe
Bulky coats and padded suits can prevent a harness from fitting snugly. Secure the child in appropriate thinner layers, tighten the harness according to the seat manual, then place a blanket over the harness if suitable and supervised. Never put material behind the child or under straps unless approved by the seat manufacturer. Ask a clinician about individual temperature concerns.
