Monaco records about 752mm of rain across roughly 60 wet days a year, which is a 16% chance on an average day. October is the wettest month at 128mm (17% of the annual total) and July the driest at 10mm. Local rain type: brief showers. Monaco enjoys the French Riviera's dry summers. Autumn storms can be dramatic but brief. The principality's compact size means shelter is always seconds away.
Chance of rain on an average day: 16%
Rainfall climatology for Monaco. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 752mm |
| Rain days per year | 60 |
| Odds on an average day | 16% |
| Wettest month | October — 128mm over 11 days |
| Driest month | July — 10mm over 1 days |
| Rain type | brief showers |
| Best dry window | May through September offers warm, dry conditions for outdoor events. |
| Worst rain window | October brings the heaviest rain — Mediterranean storms can be intense but rarely last more than a few hours. |
October delivers 1180% more rain than July (128mm vs 10mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 17% of the annual total, so rain in Monaco is spread through the year — there is no season you can rely on being dry.
Monaco rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 11 days in October against 1 in July — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 70mm | 6 | 20% | 12°C |
| February | 46mm | 4 | 13% | 12°C |
| March | 52mm | 4 | 13% | 14°C |
| April | 60mm | 5 | 17% | 18°C |
| May | 41mm | 3 | 10% | 21°C |
| June | 23mm | 2 | 7% | 25°C |
| July | 10mm | 1 | 3% | 27°C |
| August | 20mm | 2 | 7% | 27°C |
| September | 63mm | 5 | 17% | 25°C |
| October | 128mm | 11 | 37% | 21°C |
| November | 98mm | 8 | 27% | 18°C |
| December | 94mm | 8 | 27% | 14°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Monaco we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Monaco records rain on roughly 60 days a year — about a 16% chance on any given day — totalling around 752mm.
October, with about 128mm over 11 rain days. That is 17% of the entire year's rainfall in a single month.
July is the driest month at 10mm across roughly 1 days. May through September offers warm, dry conditions for outdoor events.
Monaco enjoys the French Riviera's dry summers. Autumn storms can be dramatic but brief. The principality's compact size means shelter is always seconds away.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.