Climate averages 1991–2020
Monaco weather
in May.
A mild, moderately wet month: the 5th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Monaco: daytime highs average 20.0°C and nights cool to about 13.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 52 mm of rain on roughly 9 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 42 min on an average May day.
The nearest other city in this atlas is Nice (13 km away). In May its highs average 20.6°C, 0.5°C warmer than Monaco, with 64 mm of rain.
From May to June, average highs rise by 3.8°C to 23.8°C, and monthly rainfall falls from 52 mm to 40 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Nice in MayFrance · 13 kmHigh 20.6°C · Low 13.4°C · 64 mm rain
- Antibes in MayFrance · 29 kmHigh 20.4°C · Low 12.8°C · 47 mm rain
- Cannes in MayFrance · 39 kmHigh 20.7°C · Low 12.6°C · 47 mm rain
- Toulon in MayFrance · 138 kmHigh 20.6°C · Low 13.6°C · 42 mm rain
- Genoa in MayItaly · 143 kmHigh 20.8°C · Low 13.5°C · 103 mm rain
- Asti in MayItaly · 144 kmHigh 22.0°C · Low 12.1°C · 114 mm rain
- Turin in MayItaly · 150 kmHigh 20.0°C · Low 10.2°C · 115 mm rain
- Aix-en-Provence in MayFrance · 160 kmHigh 21.9°C · Low 11.5°C · 58 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.