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 perfect 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.
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 San Ġwann's climate page.
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% *
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 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 2025, 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 →
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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.
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 San Ġwann's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full San Ġwann climate overview or explore weather in Malta.
