The best times to visit Aosta for ideal weather are
April 23rd to October 7th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Aosta Travel Guide
Other Aosta Travel Info
Weather in Aosta
Average temperatures in Aosta vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 51st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Aosta, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 86.7°F (30.4°C) with temperatures rarely dropping below 58.9°F (14.9°C) at night.
Aosta Temperatures (Fahrenheit)
Aosta Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Aosta Perceived Temperature (F)
Aosta Perceived Temperature (C)
Average Aosta Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Aosta are April, October, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid May. For example, on the week of May 7th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early June with an average of 2 days of significant precipitation the week of June 4th.
When can you find snow in Aosta? Weather stations report large amounts of snow likely to be deepest around September, especially close to late September. The best time to ski (if at all) in Aosta is often around around September 24th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Aosta.
Snow on the Ground
The graph below shows the average snow on the ground in Aosta (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Aosta has some very humid months, and slightly dry months in the opposite season. The least humid month is March (37.2% relative humidity), and the most humid month is December (74.4%).
Wind in Aosta is usually calm. The windiest month is November, followed by May and December. November’s average wind speed of around 9.1 knots (10.5 MPH or 16.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late November to early December where average top sustained speeds reach 17.6 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Aosta.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||2.8||Barely noticeable||6.6||Light breeze|
|Feb||3.1||Barely noticeable||8.3||Gentle breeze|
|Mar||6.1||Light breeze||13.2||Light breeze|
|Apr||5.9||Light breeze||13.9||Significant breeze|
|May||6.6||Light breeze||14.8||Light breeze|
|Jun||5.5||Light breeze||14.1||Significant breeze|
|Jul||6.3||Light breeze||15||Light breeze|
|Aug||5.3||Light breeze||13.5||Significant breeze|
|Sep||5.1||Light breeze||12.8||Light breeze|
|Oct||3.3||Barely noticeable||8.6||Gentle breeze|
|Nov||9.1||Gentle breeze||15.3||Light breeze|
|Dec||6.4||Light breeze||10.1||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Aosta?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Italy; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Aosta, Italy is June, followed by August and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Aosta in October. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Aosta Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 73.9°F (23.3°C) and 53°F (11.7°C) with warmer temperatures in the later months. Rain is rare with 1 to 4 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 3 to 4 days of precipitation per month. June – August is the busiest season for tourism in Aosta, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 77.1°F (25.1°C) and 43.9°F (6.6°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 2 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is far too cold this time of year in Aosta to be enjoyable for warm weather travelers. The average high during this season is between 56.3°F (13.5°C) and 35.8°F (2.1°C). On average, it rains or snows a smalll amount: 2 to 3 times per month. These times of year are fairly slow with tourists.