What are the cycling conditions like in Tunnel du Galibier?

🚴♂️ When It’s Open / Closed for Cyclists 🏔️ Col du Galibier Road (Over the Pass) Typical open season: late May / early June → late October (mainly June through October) depending on snow clearance and weather conditions. Winter closure: late October → late May / early June — the road to the pass is usually closed all winter due to heavy snow. Variable dates: Heavy snow years can push opening later into June or early closure as soon as September/October if severe weather returns. 👉 Always check current status before heading out — high passes can be closed temporarily due to early snow or storms even in summer. 🛣️ Tunnel du Galibier The tunnel under the summit is generally open year-round for vehicles and bicycles and provides a lower-altitude link even when the pass road over the top is closed for winter. It’s typically operated continuously , not limited to specific hours, but traffic signals manage single-lane flow. 🌦️ Weather Conditions to Expect (Cycling Specific) Because Col du Galibier reaches ~2,642 m , the high altitude strongly affects weather: ☀️ Summer (June — September) Wide temperature swings: Cold near the summit (can be near freezing), warm/hot in valleys. Unpredictable weather: Sudden rain showers, thunderstorms, possible snow flurries in early/late season. Wind chill: Strong winds are common at altitude — bring windproof layers. 🌧️ Early/Late Season & Shoulder Months (May, October) Snow still possible near summit , even when cleared. Cold descents: Temperatures drop significantly once climbing above ~2,000 m, so warm gear is essential. ❄️ Winter (November — May) The pass road itself is not maintained for cycling because of snow depth and avalanche risk — this makes riding unsafe/unfeasible. The tunnel stays clear, but there’s no cycling infrastructure or shoulder in winter conditions and weather is severe. 🚴♂️ Cyclist Tips & Gear Whether you aim to ride solo or as part of a group, here’s what seasoned riders recommend: ✅ Dress in layers — thermal, windproof, rain gear. ✅ Start early in the day for better conditions and lighter winds. ✅ Check pass conditions online (local road status sites and webcams). ✅ Carry extra food & fluids — high altitude means few services.

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

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Pass Information

2,556m

Elevation

Current status: open

Opening Period: Wintersperre

Current Conditions

En cas d'ouverture partielles, des réglementations spécifiques de circulation sont en place : si le tunnel est fermé et le col ouvert, le circulation est possible sauf pour les véhicules d'un poids total en charge supérieur à 3,5 tonnes, si le col est fermé et le tunnel ouvert, la circulation est possible sauf pour les piétons, les vélos, les véhicules tractant une remorque ou une caravane, les transports de matières dangereuse, les véhicules d'un gabarit supérieur à 4,10 mètres de hauteur ou d'un poids total en charge supérieur à 19 tonnes Habituellement le tunnel est fermé pour la saison hivernale du 1er lundi de novembre jusqu'au 1er vendredi Juin.

Wed

26 Aug

cloud

Overcast

N/A — N/A

15° / 8°

Precipitation 0 mm

Humidity 77 %

🚴‍♂️ When It’s Open / Closed for Cyclists

🏔️ Col du Galibier Road (Over the Pass)

Typical open season: late May / early June → late October (mainly June through October) depending on snow clearance and weather conditions.
Winter closure: late October → late May / early June — the road to the pass is usually closed all winter due to heavy snow.
Variable dates: Heavy snow years can push opening later into June or early closure as soon as September/October if severe weather returns.

👉 Always check current status before heading out — high passes can be closed temporarily due to early snow or storms even in summer.

🛣️ Tunnel du Galibier

The tunnel under the summit is generally open year-round for vehicles and bicycles and provides a lower-altitude link even when the pass road over the top is closed for winter.
It’s typically operated continuously, not limited to specific hours, but traffic signals manage single-lane flow.

🌦️ Weather Conditions to Expect (Cycling Specific)

Because Col du Galibier reaches ~2,642 m, the high altitude strongly affects weather:

☀️ Summer (June — September)

Wide temperature swings: Cold near the summit (can be near freezing), warm/hot in valleys.
Unpredictable weather: Sudden rain showers, thunderstorms, possible snow flurries in early/late season.
Wind chill: Strong winds are common at altitude — bring windproof layers.

🌧️ Early/Late Season & Shoulder Months (May, October)

Snow still possible near summit, even when cleared.
Cold descents: Temperatures drop significantly once climbing above ~2,000 m, so warm gear is essential.

❄️ Winter (November — May)

The pass road itself is not maintained for cycling because of snow depth and avalanche risk — this makes riding unsafe/unfeasible.
The tunnel stays clear, but there’s no cycling infrastructure or shoulder in winter conditions and weather is severe.

🚴‍♂️ Cyclist Tips & Gear

Whether you aim to ride solo or as part of a group, here’s what seasoned riders recommend:

✅ Dress in layers — thermal, windproof, rain gear.
✅ Start early in the day for better conditions and lighter winds.
✅ Check pass conditions online (local road status sites and webcams).
✅ Carry extra food & fluids — high altitude means few services.

Check weather on own route

Location

Weather Forecast

Next 7 Days

Wed

26 Aug

cloud

Overcast

N/A — N/A

15° / 8°

Precipitation 0 mm

Humidity 77 %

Thu

27 Aug

cloud

Partly cloudy

N/A — N/A

20° / 8°

Precipitation 0 mm

Humidity 80 %

Fri

28 Aug

cloud

Moderate rain

N/A — N/A

12° / 3°

Precipitation 4 mm

Humidity 99 %

Sat

29 Aug

cloud

Partly cloudy

N/A — N/A

14° / -1°

Precipitation 0 mm

Humidity 100 %

Sun

30 Aug

dark_mode

Clear sky

N/A — N/A

17° / 5°

Precipitation 0 mm

Humidity 89 %

Mon

31 Aug

dark_mode

Mainly clear

N/A — N/A

15° / 7°

Precipitation 0 mm

Humidity 77 %

Tue

01 Sep

cloud

Moderate rain

N/A — N/A

13° / 6°

Precipitation 5 mm

Humidity 82 %

Climate Overview

Month	Temp Day	Temp Night	Sunny Days	Sun Hours	Rain Days	Precipitation	Humidity	UV Index	Day Length
Jan	-3°C	-9°C	16	5.6h	22	178 mm	75 %	2	9h 14m
Feb	-2°C	-8°C	19	7.5h	11	28 mm	73 %	3	10h 26m
Mar	-2°C	-8°C	25	9.0h	14	83 mm	70 %	4	11h 57m
Apr	1°C	-6°C	27	10.5h	14	130 mm	68 %	5	13h 31m
May	4°C	-3°C	29	12.0h	15	46 mm	65 %	6	14h 52m
Jun	15°C	5°C	30	13.8h	18	54 mm	67 %	7	15h 33m
Jul	11°C	3°C	31	13.4h	21	61 mm	66 %	8	15h 12m
Aug	13°C	4°C	29	12.1h	14	44 mm	68 %	7	14h 1m
Sep	9°C	0°C	27	10.1h	13	83 mm	70 %	5	12h 30m
Oct	3°C	-4°C	25	8.1h	12	136 mm	72 %	4	10h 56m
Nov	-2°C	-9°C	20	6.5h	13	120 mm	76 %	2	9h 33m
Dec	-3°C	-9°C	18	6.1h	15	33 mm	77 %	2	8h 49m