Monaco sea temperature today: 26°C – beach water temperature, Monaco, Monaco
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Monaco · Mediterranean
Monaco
Sea
25.9°C78.6°F
Air
–
UV
–
Beach day
⁦23–28°C⁩

Last updated ·

Today, September 13, the sea temperature at Monaco is 25.9 °C (79 °F). That is 2.8 °C warmer than the usual 23.1 °C in September. Comfortable for swimming from June to October.

Beachfront hotels in this photo: Monte-Carlo Bay Hotel and Fairmont Monte Carlo.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in August (25.3°C). Coldest in February (12.9°C). Comfortable for swimming from June to October.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January13.4°C13.7°C14.1°C8.7°C9.3°C10.4°C
February12.8°C12.9°C13.1°C9.3°C10.1°C11.1°C
March12.7°C13.0°C13.4°C9.9°C11.0°C12.1°C
April13.5°C14.2°C14.8°C11.8°C12.8°C13.7°C
May15.8°C17.1°C18.0°C15.2°C16.4°C17.4°C
June20.3°C21.6°C22.8°C20.1°C21.3°C22.3°C
July23.4°C24.8°C25.9°C22.8°C23.9°C24.9°C
August24.1°C25.3°C26.7°C23.2°C24.2°C25.1°C
September22.8°C23.1°C23.6°C19.9°C20.7°C21.5°C
October19.8°C20.2°C20.8°C16.9°C17.6°C18.5°C
November17.1°C17.7°C18.5°C12.7°C13.3°C14.3°C
December14.8°C15.2°C15.7°C10.1°C10.7°C11.6°C

About Monaco

Hugging the French Riviera between Cap-d'Ail and Cap-Martin, Monaco wraps barely two square kilometres around Le Rocher, the limestone headland crowned since 1297 by the Grimaldis' Palais Princier, and Monte-Carlo, whose 1863 Belle Époque casino was designed by Charles Garnier. The principality counts a single proper beach: Larvotto, a recently rebuilt 500-metre crescent of pale pebbles facing east into a sheltered, low-swell bay. Sea temperatures climb between 22 and 25 °C72 and 77 °F from July through September, and Nice Côte d'Azur airport sits 35 minutes west along the A8.

Frequently asked questions

Today, September 13, the sea at Monaco is 25.9 °C (79 °F)79 °F (25.9 °C) – ideal for swimming for most people. The usual September average is 23.1 °C74 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Monaco is 25.9 °C79 °F.

In May the sea at Monaco (Monaco) averages 17.1 °C63 °F – cold, most people reach for a wetsuit. It keeps warming until August, when it peaks at 25.3 °C78 °F.

In October the sea at Monaco (Monaco) still averages 20.2 °C68 °F – refreshing, good for a short swim. It peaks in August at 25.3 °C78 °F and cools slowly from there.