SPRING – March, April, May
The weather in Monaco during the spring is pretty mild but can range from sweater weather to short sleeves so you’ll want to dress with layers. You’ll be comfortable in pants or a maxi dress during the day. Once the sunsets around 6 the temperature drops quickly, so you’ll need a pullover or a light jacket.
Spring is the most cloudy season of the year in Monaco, but don’t worry even on a rainy day there’s still plenty of sunshine. The rainfall typically doesn’t last long, but the short bursts of rain can be intense so make sure to have your umbrella handy.
Temperatures in the spring range on average between 55°F to 68°F (12°C-20°C)
SUMMER – June, July, August
Monaco’s summers are warm and dry. The days can get pretty hot especially if you’re in direct sun. You’ll want to wear something that fits the dress codes yet is breathable, like linen trousers or a cotton top. The nights have a cool breeze coming off the Mediterranean so you’ll be happy that you packed a shall or light jacket.
Make sure to also pack a sun hat. Although there’s plenty of shade when you’re in the residential areas, places like Casino Square and The Prince’s Palace are pretty open with nowhere to protect you from the sun.
Temperatures in the summer range on average between 70°F to 80°F (20°C-28°C)
FALL – September, October, November
Monaco’s fall season is mild like the spring but still holds onto a bit more of the summer warmth, especially in September and October. Autumn is known to be the windy season in Monaco, so even if the sun is shining the wind can make it feel colder than it is. Layers are key for staying comfortable throughout the day. Men can wear a nice pair of chinos with a breathable shirt, but make sure to keep a pullover handy. For women, a maxi dress or a nice pair of trousers is perfect, a cashmere shawl keep you warm in the wind.
Fall also gets rainfall so make sure to have your umbrella with you.
Temperatures in the fall range on average between 55°F to 80°F (20°C-28°C)
WINTER – December, January, February
Winters in Monaco are wet and mildly cold. Sometimes the forecast can be misleading in the winter. Since it’s a wet-cold it tends to feel colder than it actually is, especially if the sun isn’t shining.
You’ll want to dress for warmth during the winter days. While the sun’s out a sweater will be enough to keep you warm. At night you will need a light winter jacket that will keep you toasty as you wander the picturesque streets of Monaco.
Temperatures in the winter range on average between 46°F to 57°F (7°C-14°C)