Verdict: Excellent month
Zermatt Weather in August
August hits the sweet spot in Zermatt — highs around 18°C (64°F), ideal for a full day on foot. Expect showers on roughly 9 days of the month — rarely trip-ruining, worth planning around. Overall, August is one of the best months of the year to be in Zermatt.
Average high
18°C / 64°F
Average low
8°C / 46°F
Rain days
~9
Precipitation
49 mm
What to pack for Zermatt in August
- Layers — t-shirts under a light jacket or sweater
- Evenings turn genuinely cool — pack a warm layer for after dark
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
August against the rest of the year
Warmest in Zermatt: Jul (18°C / 64°F) · Coolest: Jan (0°C / 32°F) · Wettest: Dec (~14 rain days)
0°
-6°
Jan
3°
-4°
Feb
2°
-5°
Mar
5°
-2°
Apr
9°
3°
May
15°
7°
Jun
18°
9°
Jul
18°
8°
Aug
14°
5°
Sep
10°
2°
Oct
4°
-3°
Nov
1°
-6°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)