September brings 17°C daytime highs, 50mm of precipitation across about 8 wet days and 12.3 hours of daylight — best for hiking, cycling and reliable sunshine. The strongest run of the year is July to September. January is the quietest month: cold and snow-focused, and still good for snow, skiing and cabin weekends.
Long-run climate normals for Zermatt. Month ratings compare months within Zermatt only — they are not a ranking of Zermatt against other destinations, and they are not a forecast for a specific year.
Last updated: · Live forecast data refreshes hourly.
| Best month | September — Hiking, Cycling, Reliable sunshine |
| Best 3-month window | July–September |
| Quietest month | January — Cold and snow-focused |
| Driest month | February — 35mm |
| Wettest month | August — 75mm |
| Warmest / coolest | July 20°C / February 1°C |
| Seasonality | Fairly even across the year |
| Annual rainfall | 600mm over roughly 100 rain days |
January gets roughly 20% less precipitation than September — 40mm against 50mm. That difference, more than temperature, is what changes how a day here feels.
Daytime highs only move 19°C across the whole year (1–20°C), so timing matters far less here than rainfall does.
June gives you 15.5 hours of daylight against just 8.5 in December — a 7-hour difference in how much you can actually fit into a day.
February is the driest month at 35mm across roughly 6 wet days, while August peaks at 75mm.
January–December sit at or below freezing, so the precipitation shown for those months falls mainly as snow rather than rain — the millimetre figures are water equivalent, not puddles.
Zermatt stays fairly consistent all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Ratings compare months within Zermatt, not against destinations worldwide: five stars means the best time to be here, not that Zermatt beats anywhere else. Tags describe what the conditions actually suit.
| Month | Rating | High / Low | Precipitation | Wet days | Sun | Daylight | Best for |
|---|---|---|---|---|---|---|---|
| January | ★★☆☆☆ | 1°C / -8°C | 40mm (snow) | 7 | 8h | 8.8h | Snow · Skiing · Cabin weekends |
| February | ★★☆☆☆ | 1°C / -8°C | 35mm (snow) | 6 | 8h | 10.1h | Snow · Skiing · Cabin weekends |
| March | ★★☆☆☆ | 4°C / -6°C | 40mm (snow) | 7 | 5h | 11.7h | Snow · Cabin weekends · Quiet and local |
| April | ★★★☆☆ | 8°C / -2°C | 45mm (rain/snow) | 8 | 6h | 13.4h | Cabin weekends |
| May | ★★★★☆ | 13°C / 3°C | 55mm | 9 | 6h | 14.8h | Hiking · Cycling · Spring greenery |
| June | ★★★★☆ | 17°C / 7°C | 65mm | 11 | 5h | 15.5h | Hiking · Cycling |
| July | ★★★★☆ | 20°C / 9°C | 70mm | 12 | 5h | 15.2h | Hiking · Cycling |
| August | ★★★★☆ | 20°C / 9°C | 75mm | 13 | 5h | 13.9h | Hiking · Cycling |
| September | ★★★★★ | 17°C / 7°C | 50mm | 8 | 11h | 12.3h | Hiking · Cycling · Reliable sunshine |
| October | ★★★★☆ | 13°C / 3°C | 45mm | 8 | 10h | 10.6h | Hiking · Cycling · Reliable sunshine |
| November | ★★★☆☆ | 8°C / -2°C | 45mm (rain/snow) | 8 | 9h | 9.2h | Cabin weekends · Reliable sunshine · Autumn colour |
| December | ★★☆☆☆ | 4°C / -6°C | 35mm (snow) | 6 | 8h | 8.5h | Snow · Cabin weekends · Festive season |
| You are planning | Pick | Why |
|---|---|---|
| Sun & beach days | September | 11h daily sunshine, 17°C highs and only 8 rain days. |
| City walking & sightseeing | September | 17°C highs with 12.3h of daylight — long days without heat fatigue. |
| Photography & light | September | 11h of sun and 12.3h daylight give the widest window for golden-hour work. |
| Value & fewer crowds | October | Scores 64/100 — close to peak conditions but outside the busiest window. |
| Cooler-weather travel | September | 17°C highs and 7°C nights suit anyone who dislikes heat. |
Each month in Zermatt is described from long-run climate normals and then rated relative to the other eleven months in the same city. A five-star January in a cold destination means January is one of the best times to be there — not that it beats a Mediterranean summer.
| Factor | Weight | What it measures |
|---|---|---|
| Temperature | Described | Average daytime high and overnight low for the month, shown as measured rather than judged. |
| Precipitation | Described | Monthly millimetres and wet-day count, labelled as snow or rain/snow where temperatures make that the likely phase. |
| Sunshine & daylight | Described | Average daily sunshine hours and astronomical daylight length at mid-month, from the city’s latitude. |
| “Best for” tags | Derived | Applied only when the conditions genuinely support the activity — snow depth-friendly cold for skiing, 13–24°C and low rain risk for hiking, dark evenings at high latitude for aurora. A month with few strong use cases gets fewer tags rather than padded ones. |
| Star rating | Relative | Ranks the month against the other eleven months in the same city. Never a comparison between cities. |
Figures are long-run climate averages, not a forecast for a specific year. Where a month lacks sourced rainfall or humidity, the value is modelled from temperature range and rain frequency.
September is the best all-round month in Zermatt: 17°C highs, 50mm of precipitation and 12.3 hours of daylight, which suits hiking, cycling and reliable sunshine. The strongest three-month window is July to September.
January — 1°C highs, 40mm of precipitation over roughly 7 days and 8.8 hours of daylight. It is the cheapest and least crowded time to go, and it still works for snow, skiing and cabin weekends.
February is the driest month at 35mm over about 6 rain days, against 75mm in August. Across the year Zermatt records around 600mm.
Yes — conditions in Zermatt stay fairly even all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Daylight ranges from 8.5 hours in December to 15.5 hours in June, calculated from the city's latitude.