How humid is Malta in 2026?

Climatology summaries for Malta often place annual average relative humidity in a high-70s percent band, with seasonal means commonly ranging from the high 60s in peak summer afternoons toward the high 70s in cooler months. Morning readings run higher than evenings. Giordan Lighthouse monitoring on Gozo shows humidity frequently clustering in a high band, with broader swings in hot dry spells: Weather.

In practice, laundry dries slowly on muggy weeks, bathroom mould appears faster in poorly ventilated rentals, and night sleep suffers when harbour flats hold moisture after hot days: Summer heat. Winter rain weeks add damp without deep cold: Rain.

Dense Sliema and St Julian’s corridors combine humidity with urban heat and limited night breeze between towers: Living in Sliema. Older stone rooms without AC or dehumidifiers can feel clammy in January and oven-like in August. Gozo and more exposed coastal edges often feel fresher when northwest winds run, though humidity itself remains part of island air: Living in Gozo and Where to live in Malta.

Ask landlords about ventilation, shutters, and prior mould. Budget dehumidifier use alongside summer AC on ARMS bills: Utilities, internet, and transport and Monthly budget. Cross-ventilation beats sealed glass boxes for many months if street noise allows open windows.

Closets against exterior walls and windowless bathrooms are the classic mould traps in harbour rentals. A cheap humidity meter tells you faster than guesswork whether the flat needs more airflow or simply less laundry hanging indoors overnight.