Valletta Weather in September
Valletta in September sees high daytime temperatures of 27°C (81°F) and nighttime lows of 24°C (75°F). Moderate rainfall is typical, with around 36 mm (1.4 in) for the month.
Rainfall in Valletta in September
Typically, you can expect about 4 days of rain this month, with 36 mm (1.4 in) on average. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Valletta in September
September is a perfect month in Valletta, with 27°C (81°F) during the day and 24°C (75°F) at night. September is in the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Valletta in September
The month enjoys around 269 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Valletta in September
September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in September
The water temperature is 25°C (77°F), which most people find very comfortable. A good month for swimming and water sports.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malta, check out our Valletta's climate page.
Valletta 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 Valletta 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
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
Historical weather for Valletta in September
Browse day-by-day weather records for Valletta spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Valletta historical weather extremes in September
Based on weather observations in Valletta between 1976 and 2025, these are the recorded extremes during September.
- On September 3, 1987, temperatures climbed to 37°C (99°F), marking the warmest September day on record.
- On September 27, 2008, Valletta saw its coldest September day with temperatures maxing out at 21°C (70°F).
- Valletta registered its coldest September night on September 27, 1984, with temperatures dropping to 14°C (57°F).
Best Places in Malta in September
Find out more about the weather in Malta and which places have the best travel conditions in this month. See all of Malta in September →
perfect weather
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What to Wear in Valletta in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. The water temperature sits at about 25°C (77°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Valletta in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malta, check out our Valletta's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Valletta climate overview or explore weather in Malta.
