SeasonScore
Monaco, Monaco
Photo: Martin Weber · CC BY-SA 3.0

Monaco

Monaco in September

🍂 Autumn

Pleasant and some showers.

🎒 Pack: sunglasses & hat

Best months: May (9.7), Jun (9.5), Sep (9.5)

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Why September scores 9.5What goes into the score

How it works
🌡️ 24° / 18°C🌧️ 73 mm💧 dew pt 17°🍃 PM2.5 6
  • Weather comfort9.3
    • ✓Comfortable temperatures (24°C highs / 18°C lows)
    • ✓Slightly humid (dew point 16.7°C)
    • ✓Mostly dry (~73 mm rain)
  • Air quality9.8
    • ✓Good (within WHO guideline) (PM2.5 ~6 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline9.0
    • ·Normal precautions
Compare monthsPut September side by side with another month
SepMay
Score9.5 Excellent9.7 Excellent
Season🍂 Autumn🌷 Spring
High / low24° / 18°20° / 15°
Rain73 mm49 mm
Humiditydew pt 17°dew pt 14°
PM2.56 µg/m³8 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Monaco weather-station normals. Rainfall: Monaco weather-station normals (national met service).

Holidays & crowdsSeptember 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Monaco this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore MonacoEvents, sights, food & souvenirs

Check event dates locally

A tiny, glamorous city-state on the French Riviera known for its casino, yachts and Formula 1 race. Visitors come for the views, the old town on the Rock and a taste of luxury.

Events in September

No major events on our calendar for September.

Coming up later

National DayEvery year19 November every year

National holiday with ceremonies and fireworks.

Why go: Festive atmosphere; some closures.

Where: Palace Square and the cathedral

Feast of Sainte DévoteEvery year27 January every year (with a boat burning on the evening of 26 January)

Festival of Monaco's patron saint, including the symbolic burning of a boat.

Why go: A local tradition rarely seen by visitors.

Where: Church of Sainte-Dévote and the port

Monte-Carlo International Circus FestivalDate variesDates vary; usually January

Prestigious circus competition.

Why go: Book tickets early for top seats.

Where: Espace Fontvieille