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Contents
- The climate of Sliema
- The best time to visit Sliema
- The worst time to visit Sliema
- Spring weather in Sliema
- Summer weather in Sliema
- Autumn weather in Sliema
- Winter weather in Sliema
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
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).
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 »
Updated: Feb 7, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How much does it rain in Sliema?
Throughout the year, in Sliema, Malta, there are 107.6 rainfall days, and 347mm (13.66") of precipitation is accumulated.
What is the month with the least sunshine in Sliema?
With an average of 6.1h of sunshine, January has the least sunshine of the year in Sliema.
When is the lowest UV index in Sliema?
January, February and December, with an average maximum UV index of 4, are months with the lowest UV index in Sliema.
What is the coldest time of year in Sliema?
The month of February, characterized by an average high of 14.9°C (58.8°F) and a low of 13.5°C (56.3°F), is recognized as the coldest in Sliema.
What are the months with the coldest sea water in Sliema?
February and March, with an average sea temperature of 15.4°C (59.7°F), are months with the coldest seawater.
What is the most humid month in Sliema?
The most humid month in Sliema is April, with an average relative humidity of 77%.
When are the longest days in Sliema?
The month with the longest days in Sliema is June, with an average of 14h and 36min of daylight.
What are the months with the most sunshine in Sliema?
June and July, with an average of 12.1h of sunshine, are months with the most sunshine in Sliema, Malta.
What is the driest month in Sliema?
July is the month with the least rainfall. Rain falls for 0.9 days and accumulates 1mm (0.04") of precipitation.
What is the month with the highest UV index in Sliema?
July and August, with an average maximum UV index of 7, are months with the highest UV index in Sliema, Malta.
What month is the hottest in Sliema?
Sliema records the warmest temperatures in August, averaging a high of 27.4°C (81.3°F) and a low of 26.4°C (79.5°F).
What month is the sea warmest in Sliema?
With an average sea temperature of 26.1°C (79°F), August is the month with the warmest seawater.
When is Daylight Saving Time (DST) in Sliema?
On Sunday, 27. October 2024, at 3:00 am, Daylight Saving Time ends in Sliema, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 2:00 am, and the time zone reverts from CET to CEST.
What is the rainiest month in Sliema?
November is the month with the most rainfall. Rain falls for 15.6 days and accumulates 76mm (2.99") of precipitation.
What is the least humid month in Sliema?
December is the least humid month, with an average relative humidity of 69%.
What is the month with the shortest days in Sliema?
With an average of 9h and 48min of daylight, December has the shortest days of the year.
Average temperature
Sliema, Malta
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is February (14.9°C).
The month with the highest average low temperature is August (26.4°C).
The coldest month (with the lowest average low temperature) is February (13.5°C).
Average pressure
Sliema, Malta
- Average pressure in January:
1017.4mbar - Average pressure in February:
1015.6mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1014.7mbar - Average pressure in June:
1014.4mbar
- Average pressure in July:
1013.9mbar - Average pressure in August:
1014.1mbar - Average pressure in September:
1015.4mbar - Average pressure in October:
1016.1mbar - Average pressure in November:
1015.8mbar - Average pressure in December:
1019.3mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed
Sliema, Malta
- Average wind speed in January:
27.9km/h - Average wind speed in February:
27.4km/h - Average wind speed in March:
25.4km/h - Average wind speed in April:
22.7km/h - Average wind speed in May:
20.9km/h - Average wind speed in June:
16.7km/h
- Average wind speed in July:
14.3km/h - Average wind speed in August:
13.2km/h - Average wind speed in September:
17.7km/h - Average wind speed in October:
20.2km/h - Average wind speed in November:
23.8km/h - Average wind speed in December:
27.6km/h
The windiest month (with the highest average wind speed) is January (27.9km/h).
The calmest month (with the lowest average wind speed) is August (13.2km/h).
Average humidity
Sliema, Malta
The month with the highest relative humidity is April (77%).
The month with the lowest relative humidity is December (69%).
Average rainfall
Sliema, Malta
The wettest month (with the highest rainfall) is November (76mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days
Sliema, Malta
- Average rainfall days in January:
14.2 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
8.4 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
2.3 days
- Average rainfall days in July:
0.9 days - Average rainfall days in August:
2 days - Average rainfall days in September:
8 days - Average rainfall days in October:
14.8 days - Average rainfall days in November:
15.6 days - Average rainfall days in December:
14.5 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is July (0.9 days).
Average sea temperature
Sliema, Malta
The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest months (with the lowest average sea temperature) are February and March (15.4°C).
Average daylight / Average sunshine
Sliema, Malta
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
6h and 4min - Average sunshine in March:
8h and 5min - Average sunshine in April:
10h and 5min - Average sunshine in May:
11h and 4min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 2min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days
Sliema, Malta
- Average sunshine days in January:
13.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
19 days - Average sunshine days in April:
19.7 days - Average sunshine days in May:
23.8 days - Average sunshine days in June:
26.3 days
- Average sunshine days in July:
29.8 days - Average sunshine days in August:
27.8 days - Average sunshine days in September:
19.5 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
12 days - Average sunshine days in December:
12.4 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is November (12 days).
Average UV index
Sliema, Malta
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover
Sliema, Malta
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Sliema, Malta
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
