Weather in Монте-Карло by month: what to expect

Монте-Карло enjoys a Mediterranean climate with mild winters and warm summers, making it a year-round destination. The city rarely sees extreme temperatures, but the seasons still bring noticeable changes. From November to March, the weather in Монте-Карло is cooler and wetter, while June through August offers long, sunny days with little rain.

Spring and autumn in Монте-Карло are particularly pleasant, with comfortable temperatures and fewer crowds. April and May bring blooming landscapes, while September and October offer warm sea temperatures and golden light, ideal for exploring the city’s coastal charm.

In Монте-Карло, winter temperatures hover between +6.4 °C and +13.7 °C, with January being the coolest month. By March, the air warms to +8.6...+15.9 °C, and by May, daytime highs reach +21.2 °C. Summer in Монте-Карло is consistently warm, with July and August averaging +22.5...+28.8 °C, though evenings can feel cooler near the water.

Autumn arrives gradually, with September still warm at +19.1...+25.7 °C, while November sees a drop to +10.3...+17.6 °C. The sea remains swimmable until late autumn, with temperatures peaking at +26.7 °C in August and cooling to +18.3 °C by November.

Rainfall in Монте-Карло is unevenly distributed, with the wettest months falling between October and December. November sees the highest precipitation at 100.3 mm, while July is the driest with just 8.4 mm. Even in the rainier months, downpours are often short-lived, giving way to sunshine.

Summer in Монте-Карло is reliably dry, with June, July, and August averaging less than 25 mm of rain combined. The shoulder seasons—April and September—offer a balance, with moderate rainfall and plenty of dry days. If you prefer to avoid rain, plan your visit to Монте-Карло between June and August.

For a winter trip to Монте-Карло, pack layers to adapt to +6.4...+13.7 °C temperatures. A light jacket, scarf, and comfortable walking shoes will suffice for exploring the city, while evenings may call for a warmer coat. Waterproof footwear is useful during the wetter months, especially in November and December.

Summer in Монте-Карло calls for lightweight clothing, sunglasses, and a hat to shield against the sun. Evenings can be breezy, so a light shawl or long-sleeve shirt is handy. If you plan to swim, bring a swimsuit—sea temperatures reach +26.7 °C in August. For spring or autumn, a mix of short and long sleeves, along with a light rain jacket, will cover most weather scenarios.