🌦️ Seasonal conditions for cyclists

• Snow in Haute-Provence mountains typically falls Nov–May and can settle down to 1000–1600 m depending on exposure. 
• Snowfall is usually light and melts quickly, but freezing temps are common. 
• High valleys in Provence can reach −30 °C extremes. 
• Region climate mixes Mediterranean + alpine influences → harsh winters possible at altitude. 

• Snow decreases fast because it’s usually light and melts rapidly. 
• Large daily temperature swings (>10 °C common). 

• Very hot summers inland, sometimes >30 °C even at elevation. 
• Frequent mountain thunderstorms mid-June → mid-Aug. 
• Region gets 2550–2850 sunshine hours/year. 

• heat exposure on climbs
• sudden storms
• strong sun radiation

• Rain is rare but can be brief and torrential, especially in autumn. 
• Snow may begin returning in November. 

🌬️ General mountain weather traits here

• Dry air, little fog (<20 days/year) 
• Few rainy days (<90/year) but intense storms 
• Large temperature swings day/night 

🚴 Special cycling notes

• The pass itself is open year-round, but occasional temporary road closures can happen for events or local conditions. 
• Being only ~1300 m, it is lower-altitude alpine → snow is possible but not persistent like high Alpine cols.

✅ Short cyclist summary

Best: May–October
Possible: April & November (weather dependent)
Risky: December–March (snow/ice likely)

• hot, sunny summers
• occasional violent storms
• mild but variable shoulder seasons
• light but unpredictable winter snow