Val dʼIlliez Temperature by Month
The average annual maximum temperature in Val dʼIlliez, Canton of Valais, Switzerland is 10°C (50°F), with daytime highs ranging from 0°C (32°F) in January to 20°C (68°F) in July. This page covers monthly averages, day-night differences, and how Val dʼIlliez compares to cities worldwide.
Val dʼIlliez Monthly Temperatures
In Val dʼIlliez, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 9°C (48°F) in July to -9°C (16°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Val dʼIlliez by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 275 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Val dʼIlliez vs Switzerland
The map below shows the annual temperature across Switzerland. You can also select individual months if you want to compare a specific time of year.
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Val dʼIlliez vs World: Temperature Compared
Val dʼIlliez's average annual maximum temperature is 10°C (50°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Val dʼIlliez's weather — including monthly rainfall, sunshine hours, and humidity — visit our Val dʼIlliez climate page.
