Measurements:
°C
°F
Monte Carlo
74°F
S 2 mph
Feels like: 74°F
Precip: 3%
World Resorts Monaco Monte Carlo Weather

Monte Carlo Sea Water Temperature

Current Sea Water Temperature:
+73.0°F
Maximum Sea Water Temperature in June: 85.2°F
Minimum Sea Water Temperature in June: 64.6°F
Average water temperature in June: 74.1°F

Sea Water Temperature for the Last 10 Days:

June 12 73.0°F June 07 74.6°F
June 11 72.8°F June 06 75.2°F
June 10 74.4°F June 05 74.6°F
June 09 74.2°F June 04 75.6°F
June 08 74.2°F June 03 75.8°F

When is the Warmest Sea for Monte Carlo?

According to our data for the last three years for Monte Carlo the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Monte Carlo was 82.3°F. The maximum and minimum values were 79.8°F and 84.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Monte Carlo was 82.3°F. The maximum and minimum values were 79.8°F and 87.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Monte Carlo was 78.6°F. The maximum and minimum values were 75.8°F and 80.4°F respectively.

Best Time to Visit Monte Carlo
The most sunny months:
July 27 days
August 26 days
June 24 days
The most warm months:
August 84.3 °F
July 83.5 °F
June 77.7 °F
Warmest sea temperature:
August 81.8 °F
July 80.4 °F
September 77.8 °F
The most cold months:
January 52.4 °F
February 53.4 °F
December 55.1 °F
The most rainy months:
November 4 days
March 3 days
January 3 days
The most windy months:
March 7 mph
November 7 mph
April 7 mph

Monte Carlo on the Weather Map

Monaco Resorts:
NAME
Fontvielle +74
La Condamine +74
Monaco +74
Monte Carlo +74
24 Hours Weather Forecast
Monte Carlo
Local time: 00:46
13 jun, saturday
0300 72°F
S
2 mph
0600 72°F
SE
2 mph
0900 76°F
N
4 mph
1200 78°F
N
7 mph
1500 78°F
N
7 mph
1800 78°F
NE
6 mph
2100 76°F
NE
6 mph
14 jun, sunday
0000 74°F
E
4 mph