What are the cycling conditions like in Klausenpass?

🗻 Klausenpass Status & Opening Dates 📅 Seasonal Opening Official road opening for summer is typically from mid‑May to late October / early November each year. Exact dates vary by snow conditions — in 2025 it was open roughly 24 May – 11 Nov. and similarly in other years. Historically the Klausenpass is closed for winter roughly November through May because of heavy snow at altitude. The official closure for winter 2025 was on 31 October 2025 and it stays shut through winter into spring 2026. 🚴♂️ Cycling Before Official Opening Local cyclists often ride before the official car opening when snow is cleared and the road is passable but still technically closed to motor vehicles — essentially giving a car‑free stretch early in the season. This can be ideal for cyclists because the road is quieter, but it depends on snow melt and local clearance crews . 📆 Rough Timing Guide (typical) YearKlausenpass Open Period 2025 | ~24 May – 11 Nov. Other years | usually mid‑May → late October/Nov. 🌦️ Weather & Road Conditions for Cyclists ⛰️ Alpine Weather Patterns High‑altitude conditions can change rapidly — sun one moment, snow/ice the next, even in “summer.” Expect cool temperatures at the summit (~1,900 m) even on warm days, and frost/ice/patchy snow early in season (May) or late (October). 🛣️ Typical Conditions by Season 🌼 Spring (May → early June) Road may be cleared but snowbanks and meltwater likely. Car traffic usually low until official opening. Bring extra layers; frost still possible early mornings/evenings. ☀️ Summer (June → September) Best cycling weather: warm valleys, cooler summit (sunny but bring wind/warm clothes). Potential afternoon thunderstorms in Alps — check forecast same day. Road surfaces mostly dry, but shade sections can stay damp. 🍂 Autumn (October) Officially open often until ~late October/early Nov., but snowstorms can close early. Cooler temps and shorter daylight; watch for early winter weather. 🧭 Cycling Tips & Hazards ⚠️ What to Expect Steep climbs and descents: 1,000+ m might be common from valley to summit. Sudden weather swings: CARRY wind/rain layers; mt. weather changes quickly. Snowbanks early/late season: even if cleared, snow may line road edges. 🚴 Safety Tips Check local pass status on the day of ride (Swiss TCS or Alpen‑Paesse site). Wear bright visible gear — high alpine roads can have low visibility. Be cautious of icy patches or wet roads adjacent to snowmelt. Consider starting late morning → early afternoon , when frost/ice are less likely. 📌 Short Summary Klausenpass is officially closed in winter and re‑opens around mid‑May to late May , staying open typically until late October/early November — but exact dates vary with snow conditions. Cyclists sometimes ride before the official opening when snow is cleared of the road and there’s effectively no car traffic. Weather at altitude can be unpredictable — cool summit temps, possible rain or frost well into shoulder seasons. Best conditions for cycling are June through September , with careful weather checks on the day.

Back to Alpine Passes

Detailed cycling weather forecast for Klausenpass. See wind direction, temperature and rain along the entire climb and descent.

✗ Closed Uri/Glarus, CH

Visit alpen-paesse.ch

Pass Information

1,948m

Elevation

9.0%

Max Gradient

35.0 km

Length

Current status: closed

Opening Period: Wintersperre

Current Conditions

Open with no general restrictions for most vehicles. Specific permit required for certain larger touring cars (2.55m wide, 18-ton) from Monday to Friday.

Wed

11 Mar

ac_unit

Snow showers

06:45 — 18:23

3° / -1°

Precipitation 1 mm

Humidity 93 %

🗻 Klausenpass Status & Opening Dates

📅 Seasonal Opening

Official road opening for summer is typically from mid‑May to late October / early November each year. Exact dates vary by snow conditions — in 2025 it was open roughly 24 May – 11 Nov. and similarly in other years.
Historically the Klausenpass is closed for winter roughly November through May because of heavy snow at altitude.
The official closure for winter 2025 was on 31 October 2025 and it stays shut through winter into spring 2026.

🚴‍♂️ Cycling Before Official Opening

Local cyclists often ride before the official car opening when snow is cleared and the road is passable but still technically closed to motor vehicles — essentially giving a car‑free stretch early in the season.
This can be ideal for cyclists because the road is quieter, but it depends on snow melt and local clearance crews.

📆 Rough Timing Guide (typical)

YearKlausenpass Open Period2025 | ~24 May – 11 Nov.
Other years | usually mid‑May → late October/Nov.

🌦️ Weather & Road Conditions for Cyclists

⛰️ Alpine Weather Patterns

High‑altitude conditions can change rapidly — sun one moment, snow/ice the next, even in “summer.”
Expect cool temperatures at the summit (~1,900 m) even on warm days, and frost/ice/patchy snow early in season (May) or late (October).

🛣️ Typical Conditions by Season

🌼 Spring (May → early June)

Road may be cleared but snowbanks and meltwater likely.
Car traffic usually low until official opening.
Bring extra layers; frost still possible early mornings/evenings.

☀️ Summer (June → September)

Best cycling weather: warm valleys, cooler summit (sunny but bring wind/warm clothes).
Potential afternoon thunderstorms in Alps — check forecast same day.
Road surfaces mostly dry, but shade sections can stay damp.

🍂 Autumn (October)

Officially open often until ~late October/early Nov., but snowstorms can close early.
Cooler temps and shorter daylight; watch for early winter weather.

🧭 Cycling Tips & Hazards

⚠️ What to Expect

Steep climbs and descents: 1,000+ m might be common from valley to summit.
Sudden weather swings: CARRY wind/rain layers; mt. weather changes quickly.
Snowbanks early/late season: even if cleared, snow may line road edges.

🚴 Safety Tips

Check local pass status on the day of ride (Swiss TCS or Alpen‑Paesse site).
Wear bright visible gear — high alpine roads can have low visibility.
Be cautious of icy patches or wet roads adjacent to snowmelt.
Consider starting late morning → early afternoon, when frost/ice are less likely.

📌 Short Summary

Klausenpass is officially closed in winter and re‑opens around mid‑May to late May, staying open typically until late October/early November — but exact dates vary with snow conditions.
Cyclists sometimes ride before the official opening when snow is cleared of the road and there’s effectively no car traffic.
Weather at altitude can be unpredictable — cool summit temps, possible rain or frost well into shoulder seasons.
Best conditions for cycling are June through September, with careful weather checks on the day.

Check weather on own route

Location

Weather Forecast

Next 7 Days

Wed

11 Mar

ac_unit

Snow showers

06:45 — 18:23

3° / -1°

Precipitation 1 mm

Humidity 93 %

Thu

12 Mar

ac_unit

Snow

06:43 — 18:25

1° / -3°

Precipitation 7 mm

Humidity 98 %

Fri

13 Mar

cloud

Overcast

06:41 — 18:26

5° / -2°

Precipitation 0 mm

Humidity 57 %

Sat

14 Mar

ac_unit

Snow showers

06:39 — 18:28

2° / -7°

Precipitation 29 mm

Humidity 93 %

Sun

15 Mar

ac_unit

Snow grains

06:37 — 18:29

-3° / -8°

Precipitation 12 mm

Humidity 100 %

Mon

16 Mar

ac_unit

Snow showers

06:35 — 18:31

0° / -5°

Precipitation 6 mm

Humidity 99 %

Tue

17 Mar

ac_unit

Snow grains

06:33 — 18:32

1° / -4°

Precipitation 1 mm

Humidity 100 %

Climate Overview

Month	Temp Day	Temp Night	Sunny Days	Sun Hours	Rain Days	Precipitation	Humidity	UV Index	Day Length
Jan	-4°C	-12°C	14	4.7h	19	138 mm	75 %	2	9h 2m
Feb	-1°C	-10°C	20	7.2h	10	42 mm	73 %	3	10h 19m
Mar	0°C	-7°C	23	8.3h	15	66 mm	70 %	4	11h 56m
Apr	4°C	-4°C	27	10.7h	12	70 mm	68 %	5	13h 37m
May	7°C	0°C	21	9.2h	28	215 mm	65 %	6	15h 4m
Jun	16°C	7°C	30	13.2h	21	129 mm	67 %	7	15h 48m
Jul	12°C	5°C	27	11.2h	28	254 mm	66 %	8	15h 25m
Aug	15°C	7°C	29	11.5h	21	181 mm	68 %	7	14h 8m
Sep	11°C	3°C	23	8.5h	21	205 mm	70 %	5	12h 32m
Oct	5°C	-3°C	24	7.3h	16	127 mm	72 %	4	10h 51m
Nov	-1°C	-9°C	18	6.0h	16	110 mm	76 %	2	9h 23m
Dec	-1°C	-9°C	22	6.3h	8	31 mm	77 %	2	8h 36m