What are the cycling conditions like in Col du Glandon?

📆 Season Opening & Closure Mountain weather and snow clearance primarily determine whether cyclists can ride the pass : ❄️ Winter (Nov – May) The pass is closed from early November until late May due to snow and unsafe conditions. Snow and ice can linger high up into spring, making cycling hazardous before full clearance. 🚴 Spring Opening (May – June) Snow clearance typically happens in late May ; many years the road opens around the last Friday of May . Early rides (late May – early June) often encounter snow walls , cold temperatures, and remnants of winter conditions near the summit. ☀️ Summer (June – August) Best months to ride: June, July, August. Temperatures in the valleys are warm to hot, but at the summit it remains refreshingly cool even in high summer. Afternoon thunderstorms are common in the Alps — especially on warmer days — so plan to start early. 🍂 Autumn (September – October) September is usually still good cycling weather (moderate temperatures, stable roads). By October , conditions become cooler and increasingly unpredictable. Nights and mornings can be close to or below freezing, and early snow is possible. Roads close when snowfall and unsafe conditions develop, typically mid-late October to early November . 🌦️ General Weather Conditions by Season Here’s what cyclists should expect climate-wise during the main riding season: 🗓️ June Still cool at the top: summit temps often between ~5–10 °C in mornings. Snow may still sit beside the road early in the month. Afternoon clouds and occasional showers are common. 🗓️ July & August Warm in the valleys (~20–30 °C), cooler near the summit (~8–15 °C). Thunderstorms are frequent in the afternoon–evening. Strong UV (plan sunscreen and hydration). 🗓️ September Cooler than summer but typically stable weather. Great window for quiet rides and fewer cars. Nights drop below ~5–10 °C at altitude. 🗓️ May & October (Shoulder Months) Unpredictable and lean toward cold, wet, and snowy conditions. Roads may still be closed or re-closed due to weather. 🧭 Key Tips for Cyclists ✔ Always check snow/road reports before heading out — Alpine passes can reopen or close quickly based on weather. ✔ Warm layers (windbreaker/jacket) are essential; it stays cool at the top even on sunny days. ✔ Plan climbs for early morning to avoid afternoon storms. ✔ Wind and rapid weather changes are normal above ~1 800 m. 🧠 Short Summary Col du Glandon for cyclists is typically open and rideable from late May (often last Friday) through October , with the prime season in June–September . Roads are closed over winter (Nov–May) due to snow. Weather at altitude is cool all year , with rapid changes and afternoon thunderstorms common in summer — make sure you’re prepared with layers and check road/snow reports before you go.

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

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Pass Information

1,928m

Elevation

Current status: open

Opening Period: Wintersperre

Current Conditions

Could not reliably identify pass 'Col du Glandon' in Savoie external list.

Thu

14 May

ac_unit

Snow showers

06:06 — 20:56

2° / -2°

Precipitation 11 mm

Humidity 89 %

📆 Season Opening & Closure

Mountain weather and snow clearance primarily determine whether cyclists can ride the pass:

❄️ Winter (Nov – May)

The pass is closed from early November until late May due to snow and unsafe conditions.
Snow and ice can linger high up into spring, making cycling hazardous before full clearance.

🚴 Spring Opening (May – June)

Snow clearance typically happens in late May; many years the road opens around the last Friday of May.
Early rides (late May – early June) often encounter snow walls, cold temperatures, and remnants of winter conditions near the summit.

☀️ Summer (June – August)

Best months to ride: June, July, August.
Temperatures in the valleys are warm to hot, but at the summit it remains refreshingly cool even in high summer.
Afternoon thunderstorms are common in the Alps — especially on warmer days — so plan to start early.

🍂 Autumn (September – October)

September is usually still good cycling weather (moderate temperatures, stable roads).
By October, conditions become cooler and increasingly unpredictable. Nights and mornings can be close to or below freezing, and early snow is possible. Roads close when snowfall and unsafe conditions develop, typically mid-late October to early November.

🌦️ General Weather Conditions by Season

Here’s what cyclists should expect climate-wise during the main riding season:

🗓️ June

Still cool at the top: summit temps often between ~5–10 °C in mornings.
Snow may still sit beside the road early in the month.
Afternoon clouds and occasional showers are common.

🗓️ July & August

Warm in the valleys (~20–30 °C), cooler near the summit (~8–15 °C).
Thunderstorms are frequent in the afternoon–evening.
Strong UV (plan sunscreen and hydration).

🗓️ September

Cooler than summer but typically stable weather.
Great window for quiet rides and fewer cars.
Nights drop below ~5–10 °C at altitude.

🗓️ May & October (Shoulder Months)

Unpredictable and lean toward cold, wet, and snowy conditions.
Roads may still be closed or re-closed due to weather.

🧭 Key Tips for Cyclists

✔ Always check snow/road reports before heading out — Alpine passes can reopen or close quickly based on weather.
✔ Warm layers (windbreaker/jacket) are essential; it stays cool at the top even on sunny days.
✔ Plan climbs for early morning to avoid afternoon storms.
✔ Wind and rapid weather changes are normal above ~1 800 m.

🧠 Short Summary

Col du Glandon for cyclists is typically open and rideable from late May (often last Friday) through October, with the prime season in June–September. Roads are closed over winter (Nov–May) due to snow. Weather at altitude is cool all year, with rapid changes and afternoon thunderstorms common in summer — make sure you’re prepared with layers and check road/snow reports before you go.

Check weather on own route

Location

Weather Forecast

Next 7 Days

Thu

14 May

ac_unit

Snow showers

06:06 — 20:56

2° / -2°

Precipitation 11 mm

Humidity 89 %

Fri

15 May

ac_unit

Snow showers

06:05 — 20:57

1° / -3°

Precipitation 7 mm

Humidity 100 %

Sat

16 May

ac_unit

Snow showers

06:04 — 20:59

2° / -3°

Precipitation 1 mm

Humidity 99 %

Sun

17 May

cloud

Overcast

06:03 — 21:00

6° / -2°

Precipitation 0 mm

Humidity 98 %

Mon

18 May

foggy

Fog

06:02 — 21:01

9° / 1°

Precipitation 0 mm

Humidity 99 %

Tue

19 May

water_drop

Rain showers

06:01 — 21:02

10° / 3°

Precipitation 2 mm

Humidity 95 %

Wed

20 May

cloud

Partly cloudy

06:00 — 21:03

11° / 4°

Precipitation 0 mm

Humidity 89 %

Climate Overview

Month	Temp Day	Temp Night	Sunny Days	Sun Hours	Rain Days	Precipitation	Humidity	UV Index	Day Length
Jan	0°C	-9°C	17	5.7h	21	242 mm	75 %	2	9h 12m
Feb	1°C	-8°C	22	7.7h	10	44 mm	73 %	3	10h 25m
Mar	2°C	-7°C	24	8.9h	14	91 mm	70 %	4	11h 57m
Apr	6°C	-3°C	27	10.7h	14	139 mm	68 %	5	13h 32m
May	9°C	0°C	25	11.1h	21	174 mm	65 %	6	14h 53m
Jun	19°C	8°C	30	13.6h	24	143 mm	67 %	7	15h 35m
Jul	15°C	6°C	31	12.7h	23	129 mm	66 %	8	15h 13m
Aug	18°C	8°C	29	11.9h	15	109 mm	68 %	7	14h 1m
Sep	13°C	4°C	26	9.1h	18	134 mm	70 %	5	12h 30m
Oct	8°C	-1°C	24	7.8h	16	193 mm	72 %	4	10h 55m
Nov	3°C	-5°C	20	6.1h	13	214 mm	76 %	2	9h 32m
Dec	2°C	-8°C	21	6.7h	12	30 mm	77 %	2	8h 48m