Mosta Weather in September

Mosta 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 Mosta in September

On average, there are about 4 days with rain during this month, averaging 36 mm (1.4 in). Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in Mosta in September

September is a good time to be in Mosta. Days are perfect, reaching 27°C (81°F), with nights around 24°C (75°F). September is known for being in the summer season. This kind of day-to-night contrast is typical for this time of year. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Mosta in September

Expect a lot of sunshine this month, with about 269 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Mosta 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

At 25°C (77°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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 Mosta's climate page.

Mosta 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% *  

* Data from: Valletta, Malta (8 KM, 5 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Mosta 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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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

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Historical weather for Mosta in September

Browse day-by-day weather records for Mosta 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 ›

Mosta historical weather extremes in September

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Mosta.

• Mosta recorded its highest September temperature of 37°C (99°F) on September 3, 1987.
• The coldest September day was on September 27, 2008, with a maximum of 21°C (70°F).
• The lowest overnight temperature recorded in September was 14°C (57°F) (September 27, 1984).

What to Wear in Mosta in September

Warm but pleasant conditions in Mosta 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. 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Mosta 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 Mosta's climate page.

More climate data for Mosta

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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