Sliema Weather in September

September in Sliema brings high temperatures, with highs of 27°C (81°F) and nights dropping to 24°C (75°F). With perfect weather conditions overall, it's a good time to visit.

Rainfall in Sliema in September

Expect around 4 days of rain based on historical data, with 36 mm (1.4 in) average. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in Sliema in September

September is a perfect month in Sliema, with 27°C (81°F) during the day and 24°C (75°F) at night. Experience the summer season in September. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Sliema in September

The days are predominantly sunny, with an estimated total of around 269 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Sliema in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water is 25°C (77°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Malta, check out our Sliema's climate page.

Sliema Temperature in September

Min Temperature 24°C (75°F)  

Max Temperature 27°C (81°F)  

Water Temperature 25°C (77°F) *  

Chance of Rain 12%  

Precipitation 36 mm (1.4 in)  

Rainy days 4 days  

Humidity 77% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 269 hours *  

Percentage Sunshine 76% *  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Sliema typically stay consistent throughout September, with daily highs averaging around 27°C (81°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 23°C (73°F).

Average temperatures in September

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Sliema in September

Browse day-by-day weather records for Sliema spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Sliema historical weather extremes in September

Our historical data for Sliema spans 1976 to 2025, revealing these weather extremes.

• The hottest September day on record in Sliema reached 37°C (99°F) (September 3, 1987).
• Sliema experienced its chilliest September day on September 27, 2008, reaching only 21°C (70°F).
• Sliema registered its coldest September night on September 27, 1984, with temperatures dropping to 14°C (57°F).

What to Wear in Sliema in September

Warm but pleasant conditions in Sliema in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Sliema in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Malta, check out our Sliema's climate page.

More climate data for Sliema

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Sliema climate overview or explore weather in Malta.