Starting your trip in Narbonne, France, during April, you'll likely experience sunny to partly-cloudy weather with temperatures around 15°C, though it can often drop to 9°C. Rainfall could occur, sometimes heavy.
As you travel east through small towns like Saint-André-de-Roquelongue, temperatures may become slightly cooler and rainfall could increase to about 3.7mm per day.
Moving south through places like Fanjeaux, expect more sunny days with temperatures similar to before but now with night temperatures dropping to 5°C. Rainfall changes between 1.3 to 3.2mm per day.
Your journey through higher places such as Portet d'Aspet may bring snow and freezing rain with daytime temperatures of 6-8°C and freezing point at night.
Travelling through Saint-Bertrand-de-Comminges and similar places, weather becomes more comfortable with daily temperatures around 11°C, nightly temperatures of 2°C, and a mix of sun and rain.
In the final part of your trip through places like Lourdes and Saint-Pé-de-Bigorre, temperatures start to increase again up to 20°C during the day but rain remains frequent, sometimes up to 5.5mm per day.
Finally, going through towns like Buzy in the Basque country, you can expect moderate temperatures with plenty of rainfall. Daytime temperatures fluctuate between 15-20°C and nightly temperatures remain 8-10°C with continued rain, often heavy.
In conclusion, weather during April in Camino del Piamonte varies from sunshine, cloudy days, frequent showers, to snowfall in high places. Temperatures usually remain around 15°C, dropping at night.
Would you like me to add a new feature to the app? Or did you notice that something isn't working the way it should? Please Let me know!