At A Glance
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September keeps summer’s 25°C sea but drops air temperatures to a comfortable 28°C, prices fall noticeably, and the cruise crowds thin — arguably the smartest month of the year.
- Average daytime high 28°C; lows 21°C; sea 25°C; rain days 4.
- Sunshine 9 hours/day; sunset 19:00; daylight 12h 30m.
- The Naxxar Vittorja festa on 8 September is one of the year’s larger village events, coinciding with the Victory Day national holiday.
- September often has Malta’s rare Mediterranean storms — warm sea evaporation can fuel sudden short downpours.
- Aster House sits 150 metres from the Sliema seafront, sleeping up to 9 across three super-king ensuite bedrooms.
September is the month I most often recommend to repeat Malta visitors. The sea stays at 25°C through the first three weeks, but the air drops from August’s 32°C peak to a comfortable 28°C, the children of Italy and Malta are back in school by the second week, and the Comino day-tripper crowd thins to a fraction of August numbers.
Prices follow the same shift — September rates run 20-30% below August in most categories, and Aster House becomes available on shorter-notice bookings than the August peak allows.
Staying in Malta?
Aster House sleeps up to 9, with a rooftop chillout, a 1930s outdoor tub, and a media room with a 2-metre projector screen. 150 metres from the seafront, 5 minutes from the Valletta ferry.
Malta weather in September at a glance
| Stat | Value |
|---|---|
| Average high | 28°C |
| Average low | 21°C |
| Sea temperature | 25°C |
| Rain days | 4 |
| Sunshine hours/day | 9 |
| Sunset (mid-month) | 19:00 |
| Daylight hours | 12h 30m |
| Season | Autumn |
September events in Malta
The Naxxar Vittorja festa on 8 September is one of the year’s larger village events, coinciding with the Victory Day national holiday. Independence Day on 21 September is the next national holiday, with parades in Valletta. The grape harvest in late September fills the wine country, with Marsovin and Meridiana running harvest events. Lampuki season (mahi-mahi) opens properly mid-month and runs into November — restaurants put lampuki pie back on the menu. The Malta International Airshow falls in late September.
Sea temperature and swimming
Sea at 25°C through the first three weeks, dropping to 24°C in the last week. The warmest week of the year is actually 1-7 September, when the sea peaks before air temperatures cool.
What to wear in Malta in September
Daytime
Light cotton and linen, T-shirts, shorts or summer skirts, swimwear. A thin long-sleeve shirt for evening breezes by month-end.
Evening
A light cardigan or denim jacket from the third week onwards, particularly along the Sliema Strand.
Footwear
Sandals through mid-month, one pair of trainers for cooler evenings and Valletta sightseeing.
Extras
SPF 30-50, sunglasses, sun hat. UV is still strong even when the breeze masks the heat.
What to do in Malta in September
- Comino on a weekday with a fraction of August crowds
- The grape harvest at Marsovin or Meridiana — book the harvest event ahead
- Lampuki pie at Rubino, Nenu, or Legligin — in season from mid-month
- Independence Day parades in Valletta (21 September)
- Long days on the Sliema lidos and St Julian’s bays
- Gozo for a 2-3 night side trip — warm sea, far quieter than August
What is open and what is closed
Everything still open. Beach lidos in full operation. Comino ferries on summer schedule through the month. Public buses on summer timetable. Hotel rates 20-30% below August.
Why September works (and what to know)
September often has Malta’s rare Mediterranean storms — warm sea evaporation can fuel sudden short downpours. Most are 30-60 minutes, but they can be dramatic. Pack a packable raincoat just in case.
Where to base yourself
Sliema is your best base in Malta in any month. Central, walkable, on the Valletta ferry line. Aster House sleeps 9 across three super-king ensuite bedrooms with a rooftop chillout, projector media room, and 1930s outdoor tub. Read my full where-to-stay guide.
A Note From Susan
“September is the month I save my own family for. The sea is still 25°C, the queues at the major sites have gone, and the lampuki pie is back on the menu at Nenu. I cannot think of a better one-week trip in the Mediterranean.”
— Susan, Espais Roca founder
More to Explore
- Malta Weather by Month: Complete Climate Guide
- Best Time to Visit Malta: Month-by-Month
- Where to Stay in Malta: Best Areas Guide
- What to Do in Malta: My Complete Guide
Frequently Asked Questions
How hot is Malta in September?
Average daytime highs of 28°C, with overnight lows of 21°C and sea temperatures around 25°C.
Can you swim in Malta in September?
Sea at 25°C through the first three weeks, dropping to 24°C in the last week. The warmest week of the year is actually 1-7 September, when the sea peaks before air temperatures cool.
What should I pack for Malta in September?
Light cotton and linen, T-shirts, shorts or summer skirts, swimwear. A thin long-sleeve shirt for evening breezes by month-end. A light cardigan or denim jacket from the third week onwards, particularly along the Sliema Strand.
Is September a good month to visit Malta?
September is the month I most often recommend to repeat Malta visitors. The sea stays at 25°C through the first three weeks, but the air drops from August’s 32°C peak to a comfortable 28°C, the children of Italy and Malta are back in school by the second week, and the Comino day-tripper
What events are on in Malta in September?
The Naxxar Vittorja festa on 8 September is one of the year’s larger village events, coinciding with the Victory Day national holiday. Independence Day on 21 September is the next national holiday, with parades in Valletta. The grape harvest in late September fills the wine country, with Marsovin an
What is the rainfall in Malta in September?
Around 4 rain days on average through the month, with rainfall coming in short concentrated bursts rather than steady drizzle.
Stay at Aster House
Warm sea, low crowds, and lampuki season.
Aster House sleeps up to 9 across three ensuite super-king bedrooms, with a rooftop chillout, projector media room, 1930s outdoor tub, and gas BBQ on the terrace. 150 metres from the Sliema seafront.
Check availability