When should you start the Camino Viejo (Pamplona → Aguilar de Campoo)?

For most walkers, starting in late April to early June, or September to mid October gives the best conditions on the Camino Viejo (Pamplona → Aguilar de Campoo). You’ll get comfortable temperatures, long enough daylight for steady stages, and a good balance of dry spells with only passing showers.

This route (often called the Camino Olvidado from Pamplona) shifts from Atlantic‑influenced hills to drier interior valleys, so weather can flip quickly. Even in the prime windows, carry a light rain shell and a warm layer for cool mornings.

Late April to early June — spring sweet spot (best)

• Expect cool starts and mild-to-warm afternoons, with a lively mix of sun and passing showers.
• Trails feel fresh: spring greenery, flowing water, and generally comfortable walking without heat.
• You can still catch a chilly snap or a brief wintry flurry high up in late April, but it’s short‑lived.
• Pack: light insulation for mornings, breathable layers, and a dependable rain jacket.

September to early–mid October — settled autumn (best)

• Mild days and cooler nights, with regular dry spells and showery interludes as fronts pass.
• Less heat than summer, clearer air, and a calmer feel for steady mileage.
• As you move into mid‑October, expect more frequent wet spells and cooler evenings.
• Pack: a warm evening layer, rain shell, and quick‑dry footwear for occasional soaking showers.

March to mid‑April — early spring: workable but fickle

• Changeable, often cloudy, with frequent drizzle or showers and the odd colder snap.
• Higher stretches can still see sleet or brief snow.
• Good for solitude if you’re flexible and happy to walk in damp conditions.

Late June, July, August — high summer: hot and exposed at times

• Long, mostly sunny days; inland valleys turn hot and can feel harsh on climbs and open sections.
• Brief thunderstorms can break the heat; mornings are the most comfortable hours.
• Manageable if you start early, carry plenty of water, and plan shade breaks, but not the easiest season.

Late October to February — late autumn into winter: damp, cold, sometimes snowy

• Many grey days with frequent light rain or drizzle; occasional steady rain with Atlantic fronts.
• Cold nights near freezing inland; snow can appear on higher ground.
• Shorter daylight and more mud make progress slower; go only if you’re well equipped and flexible.

In short: aim for late April–early June or September–mid October for the friendliest blend of temperatures, daylight, and trail conditions—then pack for changeable skies whatever your dates.

Of course, while these recommendations provide a solid starting point, everyone's preferences and circumstances are unique. For example, if you prefer walking in the cooler morning hours to avoid midday heat, you might prioritize dates with drier conditions. On the other hand, if you are more accustomed to colder climates, you may choose to avoid hotter periods - even if it means encountering more rain. Our search tool allows you to customize your journey to align with your specific needs and preferences, ensuring the best possible experience on the Camino.

Furthermore, if your plan differs from walking the standard stages from Pamplona to Aguilar de Campoo, then you can edit the Search Settings below accordingly.