Climate and monthly weather forecastSliema, Malta

The climate of Sliema

Situated in the island nation of Malta, Sliema has a Mediterranean climate, primarily classified by the Köppen climate system as Csa - hot summers and mild winters. The subtle shift in weather parameters over the year bestows a remarkable weather consistency that is a characteristic of Mediterranean regions.

Sliema experiences a relatively stable temperature range from 14.2°C (57.6°F) to 27.4°C (81.3°F) through the year. Winter months observe cooler temperatures with the lowest average in the range of 14.2°C (57.6°F) to 15.9°C (60.6°F), while the summer months experience higher temperatures that can go up to a comfortable 27.4°C (81.3°F).

The rainfall patterns are varied, from a scant 1mm (0.04") in the peak of summer to a maximum of 76mm (2.99") in autumn. The number of rainfall days follows a similar pattern, with almost no rainy days in summer, increasing to a high of 15.6 days by the end of autumn. Humidity remains consistent throughout the year at around 70%, with minor fluctuations.

Wind speeds in Sliema shift subtly over the course of the year. The calmest period is between July and September, with the average wind speed decreasing to 13.2km/h (8.2mph). On the other hand, the windiest months are observed between November and January, with the wind speed increasing to 27.9km/h (17.3mph).

The best time to visit Sliema

Evaluating the weather parameters, the optimal time to visit Sliema would be between June and August. During these months, the weather is at its warmest with average temperatures from 23.2°C (73.8°F) to 27.4°C (81.3°F). Simultaneously, rainfall is nearly absent with an average of only 1mm (0.04") to 4mm (0.16"). The generous sunshine hours, between 12 and 12.1 hours per day, offer ample daylight for sightseeing and outdoor activities.

The worst time to visit Sliema

The least favourable time for a visit to Sliema is arguably between November and February. In these months, temperatures drop from 20.4°C (68.7°F) to a low of 14.2°C (57.6°F) , and rainfall significantly increases, reaching highs of up to 76mm (2.99") in November. The number of rainy days also spikes to 15.6 days in November.

Spring weather in Sliema

The spring weather in Sliema, from March to May, makes the transition from mild to warm. The temperatures rise gradually from an average of 15.6°C (60.1°F) to 19.7°C (67.5°F), accompanied by an increase in daylight from 12 hours to 14.1 hours. The rainfall decreases steadily during spring, from 27mm (1.06") to a paltry 9mm (0.35"), and the number of rainy days follows a similar descending order, slipping from 10.7 days to a mere 4.8 days by the end of May.

Summer weather in Sliema

Summers in Sliema, stretching from June to August, offer hot conditions with temperatures ranging from 23.2°C (73.8°F) to a high of 27.4°C (81.3°F). This season is characterized by abundant sunshine, with up to a maximum of 14.3 hours of daylight. The rainfall is almost non-existent, with just 1mm (0.04") to 4mm (0.16") over the summer months. The sea temperature rises significantly during the summer, making it an excellent time for water-based activities.

Autumn weather in Sliema

Autumn in Sliema, from September to November, sees a gradual cooling of temperatures, from an average of 25.7°C (78.3°F) to 20.4°C (68.7°F). Rainfall begins to pick up in this period, with rain measurements increasing from 23mm (0.91") to a high of 76mm (2.99") by November. The number of rainy days also increases, from 8 days in September to 15.6 days in November.

Winter weather in Sliema

The winter months in Sliema, from December to February, witness the lowest temperatures, in the range of 14.2°C (57.6°F) to 17.1°C (62.8°F). However, compared to many places, winters are mild. Rainfall is substantially high, with an average of 42mm (1.65") in December, although it tapers off to 34mm (1.34") by the end of February. The number of bright sunshine hours reduces to 6.4 hours, and the sea temperature also decreases, making it less suitable for swimming.

Weather in January

The kick-off of the year in Sliema, Malta, is marked by temperate, fluctuating average temperatures from 14.2°C (57.6°F) to 15.5°C (59.9°F), with the presence of cold breezes. The ocean chills down to a luke-warm 16.1°C (61°F), which doesn't attract many swimmers or surfers. Weather in January »

Weather in February

Given the transition from winter to spring, February in Sliema, Malta sees a slight dip in temperatures compared to January. Even with the drop in temperatures, February maintains nearly the same level of relative humidity at 71% compared to the previous month. Weather in February »

Weather in March

Contrasting with February, March ushers in warmer temperatures, clearer skies and a decline in precipitation to 27mm (1.06"). Ocean temperatures remain constant at 15.4°C (59.7°F), keeping beach activities at bay. March's climatic shift sets it apart from earlier months, marking the beginning of the balmy Mediterranean spring in Sliema, Malta. Weather in March »

Weather in April

April presents a distinction as temperatures rise up to 16.9°C (62.4°F) in Sliema. This month witnesses a sharp decrease in rainfall, receding to a mere 13mm (0.51") from 27mm (1.06") the previous month. A significant change in the weather occurs, as the humid chill of winter gives way to pleasant warmth. Weather in April »

Weather in May

May in Sliema, Malta, brings a noticeable leap in temperature, reaching 19.7°C (67.5°F) compared to April. Responding to the soaring mercury, seawater warms to a comfortable 18.8°C (65.8°F), making the beaches more appealing. May proliferates with warming temperatures, minimal rain, and clear, sunlit skies. Weather in May »

Weather in June

June welcomes the peak tourist season with daytime temperatures peaking to a lovely 23.2°C (73.8°F). While rainfall is nearly nonexistent at just 4mm (0.16"), there's a gradual rise in humidity up to 75%. As summer sets in fully, clear skies and virtually uninterrupted sunshine become a mainstay, illuminating the city's charm. Weather in June »

Weather in July

Reaching a high point in scorching summer, July showcases the hottest temperatures, reaching a high of 26.4°C (79.5°F). July with its minuscule 1mm (0.04") rainfall, marks the driest month. Undeterred by the heat, Sliema, Malta remains vibrant and spirited, with cooling winds providing faint relief. Weather in July »

Weather in August

Unlike July, the peak summer month of August in Sliema results in a slight increase in temperature to a sweltering 27.4°C (81.3°F). The Mediterranean Sea, resonating with the summer heat, reaches its warmest at 26.1°C (79°F). Weather in August »

Weather in September

September distinguishes itself with a decline in temperatures to 25.7°C (78.3°F), signifying the onset of autumn's mildness. Compared to August, rainfall starts to make a perceptible return with 23mm (0.91") precipitation. This period of the year in Sliema characterizes a tranquil weather phase, where the summer's high heat is replaced by more temperate ambiance. Weather in September »

Weather in October

In October, Sliema features a drastic leap in rainfall quantity to 74mm (2.91") alongside cooler temperatures. The clear blue sky becomes cloudier as the rainy season makes its way. This shift from dry, hot weather towards a cooler, wet season presents an entirely different atmosphere in Sliema, Malta. Weather in October »

Weather in November

The weather in November continues to cool down further, with temperatures dropping to 20.4°C (68.7°F) from the October's 23.5°C (74.3°F). Rainfall peaks to 76mm (2.99") in November being the wettest month. The shift to the cooler months becomes more prominent, despite the remainder of warm sea temperatures. Weather in November »

Weather in December

Moving into December, Sliema, Malta, experiences average temperatures of 17.1°C (62.8°F), thus wrapping the year with mild winter weather. The amount of rainfall decreases to 42mm (1.65"), providing slight relief from November's wet conditions. Weather in December »