The Camino Olvidado in Bilbao is usually mild in winter. You'll often experience rain, which can range from light to heavy. The weather is usually cool, with highs around 12°C and lows near 8°C.
Next in Güeñes, the temperatures are similar to Bilbao. It usually rains, but sometimes the sun can come out or it will be cloudy. Rainfall decreases a bit until Quintanilla del Rebollar, but you're likely to encounter some.
Once you arrive at the middle of Camino Olvidado in Soncillo and Arroyo de Valdearroyo, the weather becomes more varied. You could have sunny, partly cloudy, or overcast days. The temperatures are steady with highs around 11°C and lows about 6°C. Rainfall is similar to previous areas, and some places will experience more rain.
Closer to the end, as you reach Riello and Fasgar, the winter weather becomes more noticeable. Temperatures begin to drop significantly, reaching between 8°C to 10°C during the day and 0°C at night. You might even face light freezing rain or heavy snow showers. It might still rain, but not as often.
In the final part through Labaniego and Cacabelos, sunny days become more common again. Light rain is likely, but not as much. The weather remains cold, with daytime highs of around 10°C to 11°C and nighttime lows of about 0 to 1°C.
To sum up, the Camino Olvidado in February has a mix of weather. It often rains, but there can also be sunny and overcast days. Temperatures tend to stay mild to slightly cool. However, be prepared for freezing weather later in your walk.
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