August weather forecast
Monte Carlo, Monaco

August signals the waning phase of summer in Monte Carlo with only slight climate fluctuations. Remarkably, the city pushes through August with the highest sea temperatures registered at 23.7°C (74.7°F). Outdoor activities remain in full swing and beach days are common. The weather remains consistently warm, ensuring that outdoor dining and late-night strolls can be enjoyed comfortably. Despite August being toward the end of the summer season, sun-protective gear continues to be indispensable.

Temperature

Monte Carlo's August weather, marked by an average high temperature of 26.6°C (79.9°F) and an average low temperature of 19.3°C (66.7°F), is the warmest in the year.

Rainfall

In Monte Carlo, in August, during 3.1 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, there are 62.7 rainfall days, and 769mm (30.28") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 23.7°C (74.7°F), August is the month with the warmest seawater.
Note: Factor in your tolerance to cold, the sunshine, the wind, and the air's warmth, and a swim in 23.7°C (74.7°F) might be tempting. It is interesting to note that Olympians compete in 25°C (77°F) to 28°C (82.4°F) water temperatures.

Daylight

In August, the average length of the day is 13h and 57min.
On the first day of August, sunrise is at 06:19 and sunset at 20:53. On the last day of the month, sunrise is at 06:53 and sunset at 20:07 CEST.

Sunshine

The average sunshine in August in Monte Carlo is 9.9h.

UV index

The average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during August leads to these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Watch out! Sand and water enhance the UV exposure you receive.