Weekly note
Monaco
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Photo by Timothy A, CC BY-SA 4.0, via Wikimedia Commons.

Monaco in September

sweet spot · the best month to go

The year in Monaco

Tap a month for its page

  1. Monaco in January: ok
  2. Monaco in February: good
  3. Monaco in March: good
  4. Monaco in April: good
  5. Monaco in May: good, busy
  6. Monaco in June: sweet spot, busy
  7. Monaco in July: sweet spot, busy
  8. Monaco in August: good, busy
  9. Monaco in September: sweet spot
  10. Monaco in October: good
  11. Monaco in November: good
  12. Monaco in December: ok
  • Sweet spot
  • Good
  • OK
  • Avoid
  • Busy
September at Monaco is 25°C by day and 18°C at night, with 3 rainy days and about 11 hours of sun a day. 25C max, 3 rainy days.

The numbers

Daily high25°C
Nightly low18°C
Feels like, afternoon26°C
Rainy days, 1 mm or more3 · 52 mm
Humidity66%
Sunshine10.9 h/day
Daylight12.5 h/day
Crowds100 / 100, higher is quieter

Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.

Weather read at Monte Carlo: ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.

How busy it gets

September: about usual. Busiest from May to August; quietest in January, February and November.

Monaco in pictures

What to pack

  • Sun protection: about 11 hours of sunshine a day.

Each line is a threshold over the ten-year figures above, not advice from anywhere else.

Before you go

CurrencyEuro
LanguagesFrench
PlugsType C and E and F, 230 V
DrivingOn the right
Calling code+377
Travel advice No advice against travel — UK Foreign Office, updated 2025-12-10
HealthUK Foreign Office health advice

Facts from Wikidata (CC0), the UK Foreign Office (Open Government Licence) and the World Bank, refreshed 2026-10-07. The advisory is written for British travellers; entry rules depend on your passport.

On arrival in Monaco: the apps, paying, getting around, tipping and the emergency numbers.

September elsewhere

In September from

The other months at Monaco

← August · All twelve months at Monaco · October →

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