Weather in Zermatt in October

A hard month. October asks something of you. Go in knowing what. Highs sit at 10.9 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

October ranks 5 of 12 in Zermatt: past the worst of the year but short of August, which is the month to book if the dates are open.

Rain on 13 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 10.9 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 7 nights fall below freezing. Across the twenty years measured, the hottest October day reached 20.1 °C and the coldest night fell to -10.4 °C, and the wettest single day dropped 37 mm — roughly 51% of the month's rain in one day.

October is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest October on record still delivered 158 mm against 30 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 72 mm average is a reasonable planning figure, not a promise.

Wind is light at 5.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 80%, which at 10.9 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How October sits in the year

The month is on the way down: 4.2 °C cooler than September, with November dropping another 6.7 °C. The first week and the last are not the same trip.

Daylight in October

11 hours of daylight, losing 1.6 hours across the month. That is between Zermatt's extremes of 15.7 and 8.7 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 28.7 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 1608 m, altitude is doing as much work here as latitude: thinner air means fierce sun by day and heat that leaves the moment it sets.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Zermatt versus nearby

If Zermatt is one option among several, the nearby comparison is worth making. Chamonix-Mont-Blanc is a better bet in October — 4 °C warmer, 1 day less rain. Luzern is a better bet in October — 6 °C warmer, the same number of rain days.

So: October is a compromise. August is 20 points better and is what Zermatt is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Zermatt

See all twelve months in Zermatt, or where else to go in October.