Weather in Monte Carlo: October
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Average day temperature: | 67.9°F |
| Average night temperature: | 61.2°F | |
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Sea water temperature: | 69.9°F |
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Number of sunny days: | 20 days |
| Day length: | 10.3 - 11.7 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 2.2 in. | |
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forecast
| Monte Carlo |
temperature
| Monte Carlo |
Air temperature in October, °F
The highest day temperature during October of 2025 was 70°F. At the same time the lowest night temperature was 57°F. Daily and nightly averages during October were 66.4°F and 63.0°F.
Sea water temperature in Monte Carlo in October, °F
The average sea water temperature in October of 2025 was 70.0°F. The highest and lowest sea temperatures during the month were 73.4°F and 66.0°F.
Mostly all days in October are sunny but cloudy days are also possible.
Precipitation total in October, in.
Precipitation total value in Monte Carlo in October is 2.5 in. Other months of the year show relatively similar values.
The average wind speed value in October is 5.9 mph It makes October one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in October is: 7.2.
Best time for vacation in Monte Carlo
Monte Carlo on a weather map
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