The Via Francigena from Calais to Lausanne, traversing regions in northern France into Switzerland, features varied weather conditions. As you start in the northern parts of France, temperatures range between 18°C and 25°C with frequent occurrences of patchy rain and cloudy skies. Sunny days are interspersed but less common, and precipitation remains light, usually not exceeding 2 mm daily. As you move inland and southward, into regions like the Hauts-de-France and the Grand Est, the weather averages a bit warmer, with highs extending to 27°C and the low temperatures maintaining around 13°C to 16°C. Partly cloudy and patchy rain conditions prevail, with occasional moderate to heavy rain showers adding to the mix.
Approaching the end of the route, in the Swiss regions leading to Lausanne, the weather continues to be warm with average highs around 24°C. Sunny days become more frequent in this segment, although periods of rain, including moderate or heavy showers, still occur sporadically. Precipitation levels can vary, sometimes increasing as you near the transition from France into Switzerland. Overall, the weather along the route is variable with a mix of sun, clouds, and rain, demonstrating a typical European summer climate conducive to walking while requiring awareness of potential rain showers.
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