Climate averages 1991–2020
Monaco weather
in August.
A warm, fairly dry month: the warmest and one of the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Monaco: daytime highs average 26.8°C and nights cool to about 20.7°C. By daytime temperature it is the warmest month of the year.
Expect about 21 mm of rain on roughly 5 days, which makes August a fairly dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 13 h 59 min on an average August day.
The nearest other city in this atlas is Nice (13 km away). In August its highs average 27.4°C, 0.6°C warmer than Monaco, with 31 mm of rain.
From August to September, average highs fall by 3.7°C to 23.1°C, and monthly rainfall rises from 21 mm to 65 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Monaco climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.2°C5.3°C | 5.3°C | 69 | 8.1 | 9.39 h |
| February | 11.6°C5.0°C | 5.0°C | 58 | 7.5 | 10.510 h |
| March | 14.1°C7.2°C | 7.2°C | 62 | 7.2 | 11.912 h |
| April | 16.4°C9.8°C | 9.8°C | 74 | 9.5 | 13.413 h |
| May | 20.0°C13.7°C | 13.7°C | 52 | 9.2 | 14.715 h |
| June | 23.8°C17.6°C | 17.6°C | 40 | 7.5 | 15.415 h |
| July | 26.5°C20.3°C | 20.3°C | 21 | 5.4 | 15.115 h |
| August, selected | 26.8°C20.7°C | 20.7°C | 21 | 5.0 | 14.014 h |
| September | 23.1°C17.4°C | 17.4°C | 65 | 7.3 | 12.613 h |
| October | 19.2°C13.9°C | 13.9°C | 102 | 8.9 | 11.111 h |
| November | 14.9°C9.6°C | 9.6°C | 129 | 10.1 | 9.710 h |
| December | 12.0°C6.4°C | 6.4°C | 87 | 8.6 | 9.09 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Nice in AugustFrance · 13 kmHigh 27.4°C · Low 20.8°C · 31 mm rain
- Antibes in AugustFrance · 29 kmHigh 27.4°C · Low 20.3°C · 19 mm rain
- Cannes in AugustFrance · 39 kmHigh 27.8°C · Low 20.1°C · 19 mm rain
- Toulon in AugustFrance · 138 kmHigh 28.0°C · Low 20.6°C · 11 mm rain
- Genoa in AugustItaly · 143 kmHigh 27.6°C · Low 20.3°C · 67 mm rain
- Asti in AugustItaly · 144 kmHigh 28.8°C · Low 18.9°C · 108 mm rain
- Turin in AugustItaly · 150 kmHigh 26.8°C · Low 16.8°C · 58 mm rain
- Aix-en-Provence in AugustFrance · 160 kmHigh 29.5°C · Low 18.1°C · 23 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Monaco) is explained once on the Monaco year overview and on the Sources, method and limits page.