San Ġwann
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San Ġwann Weather in September

In San Ġwann, September brings high daytime temperatures around 27°C (81°F), with nights cooling to 24°C (75°F). Some rainfall is to be expected.

Rainfall in San Ġwann in September

Past climate data indicates that roughly 4 days will see rain, totalling around 36 mm (1.4 in) for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.

Temperature in San Ġwann in September

San Ġwann has excellent weather in September, with days reaching 27°C (81°F) and nights cooling to 24°C (75°F). Experience the summer season in September. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in San Ġwann in September

The month enjoys around 269 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in San Ġwann 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 temperature is 25°C (77°F), which most people find very comfortable. A good month for swimming and water sports.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit San Ġwann.

San Ġwann 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 (3 KM, 2 Miles).

San Ġwann Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Ġwann - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in San Ġwann 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 records for San Ġwann in September

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

San Ġwann historical weather extremes in September

Based on weather observations in San Ġwann between 1976 and 2026, these are the recorded extremes during September.

  • The warmest day in September was on September 3, 1987, with a maximum of 37°C (99°F).
  • On September 27, 2008, San Ġwann saw its coldest September day with temperatures maxing out at 21°C (70°F).
  • San Ġwann 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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in San Ġwann 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. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in San Ġwann 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

San Ġwann 3-Day Forecast

More climate data for San Ġwann

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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