Mellieha weather by month

When to go to Mellieha

For beach weather, look at months where the daytime average clears 25°C and rainy days stay low: July, August, September. December is the wettest month (73 mm, about 10 rainy days) and July the driest (0 mm). The sea is warmest in August at 26.6°C and coolest in February at 15.2°C.

Getting there

A direct flight from London Gatwick to Malta International Airport (MLA, 17 km from Mellieħa) takes roughly 3 h 18 min - short-haul (up to 4.5 h) by UK standards. Time-zone: Europe/Malta.

Records and extremes, 1991-2020

The hottest day recorded in Mellieha between 1991 and 2020 reached 35.8°C on 7 August 2017; the coldest fell to 2.7°C on 23 February 2019. In August one day in ten tops 29.6°C and about 8% of days pass 30°C; in February one night in ten drops to 8.4°C or below. The wettest single month of the period was January 2006 with 189 mm, against a January average of 56 mm.

Winter into spring: layers first, swimming later

December, January and February suit travellers who want mild days rather than reliable beach weather. December averages 16°C by day and has the most rain, so keep outdoor plans flexible. January and February sit around 14°C; a jacket and rain protection make more sense than a suitcase built around swimwear. March edges up to 15°C, with fewer rainy days, but the sea remains cold. April's 17°C days are more comfortable for spending time outside, though evenings still call for a layer. May is the clearer turning point: daytime averages reach 20°C and rain becomes uncommon. It is a good choice if you dislike summer heat, but the sea averages 18°C, so keen swimmers may prefer to wait until summer.

Summer: the strongest choice for sea and sunshine

June offers a useful balance: days average 24°C, the sea reaches 22°C and rain is scarce. It suits travellers who want to swim without choosing the hottest part of the year. July is sunnier and drier, with 14 hours of sunshine and daytime averages of 27°C. Plan shade breaks around midday rather than treating the sunshine as an invitation to stay outside continuously. August is the hottest month, with days around 28°C and sea temperatures of 27°C. That makes it particularly appealing for warm-water swimming, but nights averaging 24°C offer little cooling. Light clothing and comfortable sleeping conditions matter most then.

Autumn: warm water, with a growing rain risk

September is a strong alternative to summer if warm swimming water matters more than the driest conditions. Both the daytime and sea averages are 26°C, although rain becomes more frequent than in August. October still offers 23°C days and a sea averaging 24°C, so swimming remains a reasonable part of the plan. The catch is greater disruption from rain: leave room to rearrange outdoor time. November shifts the balance towards a mild-weather break, with days averaging 19°C and cooler evenings. The sea retains some warmth at 21°C, but more frequent rain and less sunshine make a holiday centred on swimming less dependable.