What are the cycling conditions like in Col des Montets?

Seasonal conditions Winter (December–March) Road status: Typically closed due to snow and avalanche risk. Weather: Persistent snow cover, frequent storms, sub-zero temperatures. Cycling: Not feasible. Spring (April–May) Road status: Often closed in April , reopens gradually in May depending on snowpack. Weather: Unstable. Melting snow, cold mornings, possible snowfall even late May. Cycling expectations: Wet road, debris from winter, temperatures near 0–10 °C at the top. Winter kit still required. Summer (June–August) Road status: Fully open . Weather: Mild to warm in valleys, cooler at the summit. Typical summit temperatures: ~10–18 °C Risks: Fast-forming thunderstorms, short but intense rain, sudden temperature drops. Cycling expectations: Best period overall. Windbreaker or light jacket recommended even on sunny days. Autumn (September–November) Road status: Open in September , possible closure from October after first heavy snowfalls. Weather: Clear but cooler in September; increasingly cold and wet in October. Cycling expectations: Excellent visibility in early autumn, but cold descents and early snow are real risks late season. Wind, rain, and microclimate notes Weather can change rapidly within an hour. Fog and low clouds are common due to orographic lift. Descents can feel significantly colder than climbs because of wind chill. Practical advice for cyclists Always carry an extra layer, even in midsummer. Expect colder conditions than forecasted valley temperatures. Check local road status close to your ride date, especially in May and October. Short summary Col des Montets is generally rideable from late May to late September . Summer offers the most reliable conditions, while spring and autumn bring cold, wet, and changeable weather with possible closures. Winter riding is not possible due to snow.

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

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Pass Information

1,461m

Elevation

Current status: open

Opening Period: Ganzjährig offen

Current Conditions

D1506 | Route: Chamonix - Martigny | Öffnungszeiten: abhängig von Wetterbedingungen ganzjährig befahrbar | Computed opening: openAllDay=True, openNextHour=True, minutesLeftOpen=2644, minutesLeftClosed=0

Fri

11 Sep

foggy

Fog

07:05 — 19:51

17° / 5°

Precipitation 0 mm

Humidity 100 %

Seasonal conditions

Winter (December–March)

Road status: Typically closed due to snow and avalanche risk.
Weather: Persistent snow cover, frequent storms, sub-zero temperatures.
Cycling: Not feasible.

Spring (April–May)

Road status: Often closed in April, reopens gradually in May depending on snowpack.
Weather: Unstable. Melting snow, cold mornings, possible snowfall even late May.
Cycling expectations: Wet road, debris from winter, temperatures near 0–10 °C at the top. Winter kit still required.

Summer (June–August)

Road status: Fully open.
Weather: Mild to warm in valleys, cooler at the summit.
- Typical summit temperatures: ~10–18 °C
Risks: Fast-forming thunderstorms, short but intense rain, sudden temperature drops.
Cycling expectations: Best period overall. Windbreaker or light jacket recommended even on sunny days.

Autumn (September–November)

Road status: Open in September, possible closure from October after first heavy snowfalls.
Weather: Clear but cooler in September; increasingly cold and wet in October.
Cycling expectations: Excellent visibility in early autumn, but cold descents and early snow are real risks late season.

Wind, rain, and microclimate notes

Weather can change rapidly within an hour.
Fog and low clouds are common due to orographic lift.
Descents can feel significantly colder than climbs because of wind chill.

Practical advice for cyclists

Always carry an extra layer, even in midsummer.
Expect colder conditions than forecasted valley temperatures.
Check local road status close to your ride date, especially in May and October.

Short summary

Col des Montets is generally rideable from late May to late September. Summer offers the most reliable conditions, while spring and autumn bring cold, wet, and changeable weather with possible closures. Winter riding is not possible due to snow.

Check weather on own route

Location

Weather Forecast

Next 7 Days

Fri

11 Sep

foggy

Fog

07:05 — 19:51

17° / 5°

Precipitation 0 mm

Humidity 100 %

Sat

12 Sep

cloud

Partly cloudy

07:06 — 19:49

18° / 5°

Precipitation 0 mm

Humidity 89 %

Sun

13 Sep

foggy

Fog

07:07 — 19:47

21° / 9°

Precipitation 0 mm

Humidity 96 %

Mon

14 Sep

foggy

Fog

07:09 — 19:45

20° / 13°

Precipitation 0 mm

Humidity 93 %

Tue

15 Sep

cloud

Partly cloudy

07:10 — 19:43

21° / 13°

Precipitation 0 mm

Humidity 85 %

Wed

16 Sep

foggy

Fog

07:11 — 19:41

17° / 11°

Precipitation 0 mm

Humidity 99 %

Thu

17 Sep

cloud

Overcast

07:12 — 19:39

18° / 10°

Precipitation 0 mm

Humidity 94 %

Climate Overview

Month	Temp Day	Temp Night	Sunny Days	Sun Hours	Rain Days	Precipitation	Humidity	UV Index	Day Length
Jan	4°C	-6°C	20	6.0h	18	198 mm	75 %	2	9h 7m
Feb	5°C	-5°C	21	8.0h	11	50 mm	73 %	3	10h 22m
Mar	7°C	-4°C	28	9.7h	14	46 mm	70 %	4	11h 56m
Apr	10°C	0°C	27	11.2h	12	126 mm	68 %	5	13h 34m
May	13°C	3°C	28	11.1h	24	149 mm	65 %	6	14h 58m
Jun	23°C	10°C	30	13.8h	17	70 mm	67 %	7	15h 42m
Jul	19°C	9°C	30	12.8h	25	168 mm	66 %	8	15h 20m
Aug	22°C	10°C	30	12.2h	17	130 mm	68 %	7	14h 5m
Sep	17°C	7°C	24	9.3h	20	190 mm	70 %	5	12h 31m
Oct	12°C	2°C	23	8.0h	12	163 mm	72 %	4	10h 53m
Nov	6°C	-3°C	19	6.4h	13	140 mm	76 %	2	9h 27m
Dec	5°C	-4°C	24	6.9h	11	34 mm	77 %	2	8h 42m