Ernen Temperature by Month
Ernen, Canton of Valais, Switzerland has an average annual maximum temperature of 5°C (41°F), ranging from -5°C (23°F) in January to 16°C (61°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Ernen Monthly Temperatures
The weather in Ernen experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 6°C (43°F) in July to -12°C (10°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ernen by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 219 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ernen 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.
very warm
warm
pleasant
moderate
cold
very cold
Ernen vs World: Temperature Compared
Ernen's average annual maximum temperature is 5°C (41°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Ernen?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Ernen, January is the coolest month, with average highs of -5°C (23°F) and humidity around 82% — considered very high. For a full picture, see our humidity page.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Ernen this rarely lasts long on the ground.
For more on Ernen's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ernen climate page.
