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Best time to visit Aosta

Month-by-month weather averages for Aosta.

Aosta, Aosta Valley, Italy

°C

mm

−20°−10°0°10°20°30°40°
0100200300400500600
  • Average daily high and low
  • Precipitation
  • Good month
  • Best month
  • Made good or best by an event
Average daily high and low temperature, average precipitation and each month's verdict
MonthAverage daily highAverage daily lowPrecipitationVerdict
January-5 °C / 23 °F-11.8 °C / 11 °F100 mm / 3.9 inneither best nor good
February-2.6 °C / 27 °F-10.3 °C / 13 °F72 mm / 2.8 inneither best nor good
March0.2 °C / 32 °F-7.6 °C / 18 °F101 mm / 4 inneither best nor good
April4.3 °C / 40 °F-3.3 °C / 26 °F95 mm / 3.7 inneither best nor good
May8.4 °C / 47 °F0.4 °C / 33 °F133 mm / 5.2 inneither best nor good
June14.3 °C / 58 °F5.3 °C / 42 °F106 mm / 4.2 inneither best nor good
July17 °C / 63 °F7.2 °C / 45 °F90 mm / 3.5 ingood month
August16.5 °C / 62 °F6.9 °C / 44 °F86 mm / 3.4 ingood month
September12.5 °C / 55 °F3.5 °C / 38 °F76 mm / 3 inneither best nor good
October7.8 °C / 46 °F-0.1 °C / 32 °F89 mm / 3.5 inneither best nor good
November0.7 °C / 33 °F-6.5 °C / 20 °F123 mm / 4.8 inneither best nor good
December-4.1 °C / 25 °F-10.6 °C / 13 °F120 mm / 4.7 inneither 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'.

  1. JJanuary: neither
  2. FFebruary: neither
  3. MMarch: neither
  4. AApril: neither
  5. MMay: neither
  6. JJune: neither
  7. JJuly: good
  8. AAugust: good
  9. SSeptember: neither
  10. OOctober: neither
  11. NNovember: neither
  12. DDecember: neither
Good
July–August
Why these months

  • July · good

    In its favour: feels like (high) 16.2 °C / 61 °F, share of daylight that is sunny 85%, average daily high 17 °C / 63 °F, precipitation 90 mm / 3.5 in, days with heavy rain 2.6 days, relative humidity 69%, average daily low 7.2 °C / 45 °F.

    Against: wet days 14.9 days.

  • August · good

    In its favour: feels like (high) 15.5 °C / 60 °F, share of daylight that is sunny 83%, average daily high 16.5 °C / 62 °F, precipitation 86 mm / 3.4 in, days with heavy rain 2.4 days, relative humidity 70%, average daily low 6.9 °C / 44 °F.

    Against: wet days 12.9 days.

Skiing and snow

Wants cold and snowfall; sunshine barely matters.

  1. JJanuary: best
  2. FFebruary: best
  3. MMarch: best
  4. AApril: best
  5. MMay: best
  6. JJune: neither
  7. JJuly: neither
  8. AAugust: neither
  9. SSeptember: neither
  10. OOctober: good
  11. NNovember: best
  12. DDecember: best
Best
November–May
Good
October
Why these months

  • January · best

    In its favour: snowfall 72 cm / 28.4 in, average daily high -5 °C / 23 °F, days with snow 17.6 days, average daily low -11.8 °C / 11 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 9.1 h.

  • February · best

    In its favour: snowfall 53 cm / 20.9 in, average daily high -2.6 °C / 27 °F, days with snow 17.1 days, average daily low -10.3 °C / 13 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 10.4 h.

  • March · best

    In its favour: snowfall 73 cm / 28.7 in, average daily high 0.2 °C / 32 °F, days with snow 20.1 days, average daily low -7.6 °C / 18 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 11.9 h.

  • April · best

    In its favour: snowfall 59 cm / 23.1 in, days with snow 17 days, average daily low -3.3 °C / 26 °F, average daily high 4.3 °C / 40 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 13.6 h.

  • May · best

    In its favour: snowfall 44 cm / 17.5 in, days with snow 12.9 days, wind (daily max) 6 km/h / 4 mph, daylight per day 14.9 h.

    Against: average daily high 8.4 °C / 47 °F, average daily low 0.4 °C / 33 °F.

  • October · good

    In its favour: snowfall 26 cm / 10.2 in, days with snow 8.3 days, wind (daily max) 6 km/h / 4 mph, daylight per day 10.9 h, average daily low -0.1 °C / 32 °F.

    Against: average daily high 7.8 °C / 46 °F.

  • November · best

    In its favour: snowfall 79 cm / 31.2 in, average daily high 0.7 °C / 33 °F, days with snow 16.9 days, average daily low -6.5 °C / 20 °F, wind (daily max) 6 km/h / 4 mph, daylight per day 9.5 h.

  • December · best

    In its favour: snowfall 86 cm / 33.9 in, average daily high -4.1 °C / 25 °F, days with snow 18.4 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 Pila ski, 7 km away.

Weather averages

Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.

  JanFebMarAprMayJunJulAugSepOctNovDec
Feels like (high) -8.8 °C-6.3 °C-3 °C1.9 °C6.8 °C13.4 °C16.2 °C15.5 °C10.7 °C5.2 °C-2.6 °C-7.8 °C
Days with heavy rain 3.3 days2.4 days3 days2.9 days4 days2.4 days2.6 days2.4 days2 days3 days4.1 days4.2 days
Time rain usually falls 2 am9 pm8 am3 pm5 pm5 pm4 pm4 pm4 pm4 pm9 am7 am
Sunshine per day 6.9 h8.1 h9.4 h10.9 h11.1 h12.2 h13 h11.7 h10 h8.5 h7 h6.5 h
Relative humidity 71%70%71%73%78%75%69%70%77%79%78%71%

Air quality

Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.

  JanFebMarAprMayJunJulAugSepOctNovDec
Air pollution (PM2.5) 2022–20252.9 µg/m³5 µg/m³5.2 µg/m³5.6 µg/m³6 µg/m³10.1 µg/m³6.7 µg/m³6.4 µg/m³4.5 µg/m³3.8 µg/m³2.4 µg/m³2.8 µg/m³
Air pollution (PM2.5, daily peak) 2022–20256.1 µg/m³9.2 µg/m³10.4 µg/m³10.4 µg/m³11.6 µg/m³17 µg/m³12 µg/m³10.4 µg/m³8.5 µg/m³7.7 µg/m³4.7 µg/m³5.4 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.

Other places in Italy

Compare places month by month on the travel calendar

Monthly averages over 2006–2025, unless stated otherwise.

Weather data by Open-Meteo.com (CC-BY 4.0), generated using Copernicus Climate Change Service information (ERA5). City data from GeoNames (CC-BY 4.0). Air quality from the Copernicus Atmosphere Monitoring Service (CAMS) and sea temperature from Météo-France / Copernicus Marine, both via Open-Meteo.com. Coastline from Natural Earth. Ski areas from OpenSkiMap.org, © OpenStreetMap contributors (ODbL) and Skimap.org. World Heritage sites from Wikidata (CC0), from the World Heritage List © UNESCO World Heritage Centre. Readership from Wikimedia pageview data (CC0). Destination classification derived from English Wikivoyage, © Wikivoyage contributors (CC BY-SA 4.0).