Humidity and Mold in Mallorca During Winter – What Property Owners Should Know
Many people spending their first winter in Mallorca are surprised to discover that, despite the island’s mild temperatures, humidity levels can be remarkably high, especially along the coast. Relative humidity between 72% and 80% is common during the winter months.
Combined with cooler indoor temperatures and insufficient ventilation, this can cause condensation on walls and windows. In some cases, small patches of mold may appear, particularly in corners, behind furniture, or on exterior walls.
Why Does Humidity Increase During Winter?
Mallorca has a Mediterranean maritime climate. The surrounding sea keeps humidity levels high throughout winter. At the same time, many holiday homes are only occupied occasionally or are not heated and ventilated regularly, allowing moisture to accumulate indoors.
This affects apartments, villas, fincas, and townhouses alike and, in most cases, is not a structural defect, but rather a natural consequence of the island’s climate.
How Can You Prevent It?
The good news is that moisture and minor mold spots are usually easy to remove and prevent.
We recommend the following:
- Ventilate your home regularly, especially after cooking or showering.
- Maintain a consistent indoor temperature.
- Avoid placing large furniture directly against exterior walls to allow air circulation.
- Clean existing mold spots using a chlorine-based household cleaner.
- Use a dehumidifier if the property is left unoccupied for extended periods.
- Alternatively, use the dehumidification (“Dry”) mode available on most modern air conditioning systems.
Our Recommendation for Property Owners
If your property is only used seasonally, investing in a quality dehumidifier or an air conditioning system with a dehumidification function is highly recommended. This helps maintain a healthy indoor climate and significantly reduces the risk of moisture damage.
Conclusion
High humidity is a normal part of winter in Mallorca, particularly in coastal areas. Fortunately, with proper ventilation and a few simple precautions, moisture and mold can usually be prevented without difficulty.
Anyone who owns—or plans to purchase—a property in Mallorca should be aware of these climatic conditions. In most cases, occasional moisture is simply a characteristic of the Mediterranean climate rather than a defect in the property.
