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Monte Carlo Weather in August
With daytime temperatures of 26°C (79°F) and nighttime lows of 21°C (70°F), August in Monte Carlo brings high temperatures during the day. The excellent weather makes it an appealing time to visit.
Rainfall in Monte Carlo in August
Expect around 7 days of rain based on historical data, with 28 mm (1.1 in) average. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Monte Carlo in August
If you're visiting Monte Carlo in August, expect excellent temperatures with highs of 26°C (79°F) and overnight lows of 21°C (70°F). The month of August belongs to the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.
Sunshine in Monte Carlo in August
Expect sunny days throughout the month, with an estimated 308 hours of sunshine. This makes it a pleasant time to visit Monte Carlo.
Average water temperature in August
With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Monte Carlo Temperature in August
Min Temperature
21°C (70°F)
Max Temperature
26°C (79°F)
Water Temperature
24°C (75°F)
Chance of Rain
23%
Precipitation
28 mm (1.1 in)
Rainy days
7 days
Sunshine
308 hours
Percentage Sunshine
71%
Monte Carlo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Monte Carlo - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Monte Carlo typically stay consistent throughout August, with daily highs averaging around 26°C (79°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 22°C (72°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Monte Carlo in August
Browse day-by-day weather records for Monte Carlo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Monte Carlo historical weather extremes in August
Based on 50 years of weather observations in Monte Carlo between 1976 and 2026, these are the recorded extremes.
- The hottest August day on record in Monte Carlo reached 37°C (99°F) (August 1, 2006).
- Monte Carlo experienced its chilliest August day on August 21, 2025, reaching only 19°C (66°F).
- Nighttime temperatures dropped to 13°C (55°F) on August 30, 2025, marking the coldest August night on record.
Best Places in Monaco in August
Find out more about the weather in Monaco and which places have the best travel conditions in this month. See all of Monaco in August →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Monte Carlo in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. Expect water temperatures of around 24°C (75°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Monte Carlo in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Monte Carlo 3-Day Forecast
More climate data for Monte Carlo
Temperature Rainfall Sunshine Water Temp
See the full Monte Carlo climate overview or explore weather in Monaco.
Popular in August
Where to go in August - average daytime high across popular destinations.
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