Best time to visit Courmayeur
Month-by-month weather averages for Courmayeur.
Courmayeur, Aosta Valley, Italy
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | -5.1 °C / 23 °F | -11.7 °C / 11 °F | 126 mm / 4.9 in | neither best nor good |
| February | -2.5 °C / 28 °F | -10.2 °C / 14 °F | 86 mm / 3.4 in | neither best nor good |
| March | 0.5 °C / 33 °F | -7.4 °C / 19 °F | 114 mm / 4.5 in | neither best nor good |
| April | 4.5 °C / 40 °F | -3.3 °C / 26 °F | 89 mm / 3.5 in | neither best nor good |
| May | 8.6 °C / 47 °F | 0.2 °C / 32 °F | 134 mm / 5.3 in | neither best nor good |
| June | 14.4 °C / 58 °F | 5 °C / 41 °F | 105 mm / 4.1 in | neither best nor good |
| July | 16.9 °C / 62 °F | 7.1 °C / 45 °F | 98 mm / 3.9 in | good month |
| August | 16.5 °C / 62 °F | 6.8 °C / 44 °F | 91 mm / 3.6 in | good month |
| September | 12.6 °C / 55 °F | 3.5 °C / 38 °F | 78 mm / 3.1 in | neither best nor good |
| October | 8.1 °C / 47 °F | 0 °C / 32 °F | 89 mm / 3.5 in | neither best nor good |
| November | 0.8 °C / 33 °F | -6.7 °C / 20 °F | 125 mm / 4.9 in | neither best nor good |
| December | -4.1 °C / 25 °F | -10.6 °C / 13 °F | 150 mm / 5.9 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: neither
- JJuly: good
- AAugust: good
- SSeptember: neither
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Good
- July–August
Why these months
July · good
In its favour: feels like (high) 16 °C / 61 °F, share of daylight that is sunny 83%, average daily high 16.9 °C / 62 °F, precipitation 98 mm / 3.9 in, days with heavy rain 3 days, average daily low 7.1 °C / 45 °F, relative humidity 71%.
Against: wet days 15.4 days.
August · good
In its favour: feels like (high) 15.4 °C / 60 °F, share of daylight that is sunny 82%, average daily high 16.5 °C / 62 °F, precipitation 91 mm / 3.6 in, days with heavy rain 2.8 days, average daily low 6.8 °C / 44 °F, relative humidity 73%.
Against: wet days 13 days.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: good
- JJuly: best
- AAugust: best
- SSeptember: best
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Best
- July–September
- Good
- June
Why these months
June · good
In its favour: average daily high 14.4 °C / 58 °F, precipitation 105 mm / 4.1 in, days with heavy rain 2.3 days, feels like (high) 13.5 °C / 56 °F, average daily low 5 °C / 41 °F, share of daylight that is sunny 77%, daylight per day 15.7 h, wind (daily max) 7 km/h / 4 mph.
Against: wet days 17.8 days.
July · best
In its favour: average daily high 16.9 °C / 62 °F, precipitation 98 mm / 3.9 in, feels like (high) 16 °C / 61 °F, average daily low 7.1 °C / 45 °F, share of daylight that is sunny 83%, daylight per day 15.3 h, days with heavy rain 3 days, wind (daily max) 7 km/h / 5 mph.
Against: wet days 15.4 days.
August · best
In its favour: average daily high 16.5 °C / 62 °F, precipitation 91 mm / 3.6 in, feels like (high) 15.4 °C / 60 °F, average daily low 6.8 °C / 44 °F, share of daylight that is sunny 82%, daylight per day 14.1 h, days with heavy rain 2.8 days, wind (daily max) 7 km/h / 4 mph.
Against: wet days 13 days.
September · best
In its favour: average daily high 12.6 °C / 55 °F, precipitation 78 mm / 3.1 in, days with heavy rain 2.2 days, share of daylight that is sunny 79%, daylight per day 12.5 h, feels like (high) 10.8 °C / 51 °F, average daily low 3.5 °C / 38 °F, wet days 12.6 days, wind (daily max) 6 km/h / 4 mph.
Skiing and snow
Wants cold and snowfall; sunshine barely matters.
- JJanuary: best
- FFebruary: best
- MMarch: best
- AApril: best
- MMay: best
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: good
- NNovember: best
- DDecember: best
- Best
- November–May
- Good
- October
Why these months
January · best
In its favour: snowfall 89 cm / 35.2 in, average daily high -5.1 °C / 23 °F, days with snow 17.8 days, average daily low -11.7 °C / 11 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 9.1 h.
February · best
In its favour: snowfall 62 cm / 24.2 in, average daily high -2.5 °C / 28 °F, days with snow 15.9 days, average daily low -10.2 °C / 14 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 10.4 h.
March · best
In its favour: snowfall 80 cm / 31.6 in, average daily high 0.5 °C / 33 °F, days with snow 19.4 days, average daily low -7.4 °C / 19 °F, wind (daily max) 7 km/h / 4 mph, daylight per day 11.9 h.
April · best
In its favour: snowfall 55 cm / 21.5 in, days with snow 15.6 days, average daily low -3.3 °C / 26 °F, wind (daily max) 7 km/h / 4 mph, daylight per day 13.6 h.
Against: average daily high 4.5 °C / 40 °F.
May · best
In its favour: snowfall 45 cm / 17.6 in, days with snow 12.5 days, wind (daily max) 7 km/h / 4 mph, daylight per day 14.9 h.
Against: average daily high 8.6 °C / 47 °F, average daily low 0.2 °C / 32 °F.
October · good
In its favour: snowfall 26 cm / 10.3 in, days with snow 8.1 days, wind (daily max) 7 km/h / 4 mph, daylight per day 10.9 h, average daily low 0 °C / 32 °F.
Against: average daily high 8.1 °C / 47 °F.
November · best
In its favour: snowfall 79 cm / 31.1 in, average daily high 0.8 °C / 33 °F, days with snow 16.7 days, average daily low -6.7 °C / 20 °F, wind (daily max) 7 km/h / 4 mph, daylight per day 9.5 h.
December · best
In its favour: snowfall 105 cm / 41.2 in, average daily high -4.1 °C / 25 °F, days with snow 18.1 days, average daily low -10.6 °C / 13 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 8.7 h.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Courmayeur, 0 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | -8.9 °C | -6.2 °C | -2.7 °C | 2.2 °C | 6.9 °C | 13.5 °C | 16 °C | 15.4 °C | 10.8 °C | 5.5 °C | -2.5 °C | -7.8 °C |
| Days with heavy rain | 4.2 days | 2.8 days | 3.8 days | 2.6 days | 4.3 days | 2.3 days | 3 days | 2.8 days | 2.2 days | 2.9 days | 4.6 days | 5.2 days |
| Time rain usually falls | 1 am | 9 pm | 7 am | 6 pm | 5 pm | 4 pm | 4 pm | 4 pm | 4 pm | 4 pm | 9 am | 8 am |
| Sunshine per day | 6.6 h | 7.9 h | 9.3 h | 10.9 h | 11.1 h | 12 h | 12.8 h | 11.5 h | 9.9 h | 8.4 h | 6.9 h | 6.2 h |
| Relative humidity | 74% | 73% | 73% | 74% | 79% | 76% | 71% | 73% | 78% | 79% | 80% | 75% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 3.9 µg/m³ | 5.9 µg/m³ | 5.9 µg/m³ | 6.1 µg/m³ | 6.2 µg/m³ | 9.8 µg/m³ | 6.5 µg/m³ | 6.5 µg/m³ | 4.7 µg/m³ | 4.2 µg/m³ | 2.9 µg/m³ | 3.5 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 7.3 µg/m³ | 10.6 µg/m³ | 11.4 µg/m³ | 10.6 µg/m³ | 11.9 µg/m³ | 15.8 µg/m³ | 11.5 µg/m³ | 10.3 µg/m³ | 8.4 µg/m³ | 7.6 µg/m³ | 5.6 µg/m³ | 6.7 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.