Valencia sells itself on 300 days of sunshine, and the number is honest. What the brochures leave out is that the sunshine stays outside. From late November to early March the daytime is often 15 to 18 degrees, the nights drop to 5 or 6, and an apartment built for July can sit at 14 degrees indoors for weeks. Newcomers from northern Europe are regularly colder in Valencia in January than they were at home. This guide explains why, and what to check before you rent a Valencia apartment for the winter.
Why the apartments are cold
The city was built to lose heat, not keep it. Most of the housing stock went up between the 1960s and the 1990s, before insulation was required, with single-glazed windows, aluminium frames, tiled floors and thick walls that soak up the cold and hold it. Central heating is rare: there is no district heating, and gas central heating exists mainly in newer or renovated buildings. The default is nothing at all, or a wall-mounted air conditioner that also runs warm.
Add humidity. Valencia sits on a coastal plain beside a lagoon, and winter humidity indoors regularly reaches 70 percent or more. Fourteen degrees at 70 percent humidity feels colder than ten degrees in dry air, and it is why the same apartment that was perfect in September feels damp and hostile in December.
None of this is a defect of any particular flat. It is the city. The point is to choose within it.
Orientation is worth more than heating
The single biggest factor is which way the windows face. A south- or south-west-facing living room gets direct sun from late morning to mid-afternoon on most winter days, and that sun heats the room to a comfortable 20 degrees without anything switched on. A north-facing flat never sees it and needs heating from breakfast to bedtime.
When you view an apartment, or look at photos, work out where the main windows point. In listings, "exterior" means the windows face the street or open air; "interior" means they face a light well, and an interior flat gets no winter sun at all whatever its orientation. Ask for "exterior, orientación sur" and you have solved half the problem before discussing heating.
Upper floors are warmer than ground floors, and a flat with apartments above and below it borrows heat from its neighbours. Top floors under an uninsulated roof and ground floors over a garage are the two to be careful with.
The heating types, from best to worst
Gas central heating (calefacción central or de gas natural). Radiators in every room, a boiler, a thermostat. Rare in Valencia but it exists in buildings from the 2000s onwards and in renovated older flats. If a listing has it, that alone justifies a higher rent in winter.
Ducted air conditioning with heat pump (aire acondicionado por conductos, bomba de calor). Vents in the ceiling of every room, one system, one control. Common in newer buildings. Efficient and even, and it does the summer too.
Split-unit air conditioning with heat pump (split, bomba de calor). The wall-mounted unit most flats have. Check that it heats, not only cools: look for a sun symbol on the remote or "frío/calor" in the listing. One unit in the living room is standard; the bedrooms are then heated by whatever crosses the corridor. A unit in each bedroom is a real upgrade.
Electric radiators and oil heaters. Plug-in, cheap to buy, expensive to run. Fine for a bedroom for an hour before sleep, ruinous as the main heating. If this is all a flat has, treat it as no heating.
Underfloor heating. Exists in some new-build and premium renovations. Excellent, and a sign the whole building is properly insulated.







