April along the Vía Gebennensis is characterized by a mix of sunny, rainy, and occasionally snowy conditions. The temperatures fluctuate significantly, with highs ranging from 1°C to 24°C and lows dipping between -5°C and 10°C. Rainfall varies across the trail, with certain days experiencing heavy rain, while others remain dry. Cloud cover is common, yet sunny intervals frequently break through. Overall, travelers will encounter a diverse array of weather patterns, keeping the journey along the trail varied and unpredictable.
Beginning in Genève, the weather is often cloudy with occasional rain showers, and temperatures range from a chilly -4°C to a pleasant 21°C. As the trail progresses to regions like Col du Mont-Sion and Frangy, a similar pattern continues, with sunny spells juxtaposed against sporadic rain. Temperatures remain moderate, and precipitation is generally light but can intensify at times.
As walkers proceed to Serrières-en-Chautagne and Yenne, rain becomes more frequent and occasionally heavy, with temperatures oscillating between cool and mild. By the time trekkers reach Saint-Genix-sur-Guiers and Le Pin, sunny days reappear, with sporadic rain and cloud cover punctuating the landscape. Temperatures experience a warming trend, reaching highs of 24°C.
Further along in La Côte-Saint-André and Revel-Tourdan, the weather remains varied, alternating between clear skies and rainy days, but conditions are largely agreeable. Approaching Saint-Romain-de-Surieu and Chavanay, rainfall intensity fluctuates, while temperatures consistently hover in the comfortable range.
Finally, near places like Bourg-Argental, Les Sétoux, and Montfaucon-en-Velay, the unpredictable nature of April's weather is notable, with a distinct mixture of rain, sunshine, and the occasional patch of snow, offering a dynamic backdrop to the concluding moments of the trail in Le Puy-en-Velay.
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