Camino Vasco del Interior weather: warnings stage by stage, month by month

Camino Vasco del Interior, Irún to Santo Domingo de la Calzada, in 8 stages. Warnings 2019–2025; updated 27 October 2026.

The Camino Vasco del Interior leaves Irún heading inland, passes Tolosa, the San Adrián tunnel and Vitoria, and joins the Camino Francés at Santo Domingo de la Calzada. By warnings it sits a little below the Francés and above the Camino del Norte. This is what the official warnings say, stage by stage and month by month.

February

the month with the fewest warnings

0.7 warning days walking the whole route

June

the month with the most warnings

2.3 warning days in 8 stages

warning zones

in 4 provinces

red days on some stage

2019 to 2025

It's eight stages through Gipuzkoa, Álava, the Condado de Treviño and La Rioja. Here we count, for each one, the warning days in the zones it crosses, and add them up month by month.

February and April are the calmest months. The busiest are June, with storms, and the summer, with heat and storms; in January, snow and wind.

Almost all of the route's red days in the last eight years have been in summer, for heat or storms, such as 27 June 2019, 30 July 2020 or 23 August 2023. There were also winter red days, such as 27 and 28 November 2021.

The Camino Vasco del Interior's warning zones

AEMET doesn't warn by village but by zone. The Camino Vasco del Interior crosses 5 warning zones, each with its own thresholds and warnings: on the same day one section can have a warning and the next none.

Fewer warnings than averageClose to averageMore warnings than average

Average warning days a year in each zone, 2019–2025, against the median of Spain's zones (54 days). Approximate route through the stages. Tap a zone to go to its page.

Walking the whole route, month by month

How many warning days you'd get, on average, walking one stage a day from Irún to Santo Domingo de la Calzada in each month. Tap a month to see it stage by stage.

yelloworangered

1.6Jan 0.7Feb 0.8Mar 0.7Apr 1.0May 2.3Jun 1.6Jul 1.9Aug 1.1Sep 0.8Oct 1.2Nov 1.0Dec

Stage-days with a warning, average 2019–2025, over 8 stages; the colour is the day's highest level in the stage's zones.

Stage by stage, month by month

Share of days with some warning in each stage's zones, 2019–2025. The darker, the more warnings.

Stage	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1. Irún – Hernani	13	6	6	6	11	19	9	17	15	10	20	12
2. Hernani – Tolosa	19	9	8	9	13	30	13	22	20	13	22	14
3. Tolosa – Zegama	17	7	6	7	11	28	13	17	15	10	14	8
4. Zegama – Salvatierra	23	12	15	13	15	32	17	25	17	14	18	13
5. Salvatierra – Vitoria-Gasteiz	20	11	14	11	12	27	16	19	10	9	11	11
6. Vitoria-Gasteiz – La Puebla de Arganzón	21	11	14	12	13	27	17	21	10	9	11	11
7. La Puebla de Arganzón – Haro	25	10	12	9	14	35	37	36	14	9	12	16
8. Haro – Santo Domingo de la Calzada	18	6	7	5	14	34	37	36	12	4	7	11

The Camino Vasco del Interior section by section

Gipuzkoa: Irún – Zegama

From Irún to Zegama, rain is the top reason for a warning, with storms and wind behind it. Here a wind-gust warning takes 90 km/h. June and November are the busiest months; March and February the calmest.

Most common: rain, storms and wind. Most warnings in June and November; fewest in March and February.

Álava: Zegama – La Puebla de Arganzón

Past the San Adrián tunnel, the Llanada alavesa is the route's zone with the most snow warnings. Over the year rain and storms lead, with June and August the busiest months.

Most common: rain, storms and wind. Most warnings in June and August; fewest in October and February.

La Rioja: La Puebla de Arganzón – Santo Domingo de la Calzada

The last stages, towards Haro and Santo Domingo de la Calzada, get the most heat warnings. July and August are the busiest months, with heat and storms; October and April the calmest.

Most common: storms, heat and rain. Most warnings in July and August; fewest in October and April.

The worst days on the Camino Vasco del Interior

The days since 2018 with orange or red on the most stages at once.

red27 June 2019: red warning on 8 of 8 stages, for heat · the episode
red30 July 2020: red warning on 8 of 8 stages, for storms and heat · the episode
red18 June 2022: red warning on 8 of 8 stages, for heat · the episode
red18 July 2022: red warning on 8 of 8 stages, for heat · the episode
red23 August 2023: red warning on 8 of 8 stages, for heat · the episode
red24 August 2023: red warning on 8 of 8 stages, for heat · the episode
red11 August 2024: red warning on 8 of 8 stages, for heat · the episode
red22 June 2026: red warning on 8 of 8 stages, for heat · the episode

When a warning is issued on the Camino Vasco del Interior

Thresholds change from zone to zone. These are the yellow ones in the Camino Vasco del Interior's zones:

Zone	Heat	Cold	Wind	Rain 1 h	Snow 24 h
Gipuzkoa litoral	34 °C	−1 °C	90 km/h	15 mm	2 cm
Gipuzkoa interior	34 °C	−4 °C	90 km/h	15 mm	2 cm
Llanada alavesa	36 °C	−6 °C	70 km/h	15 mm	2 cm
Condado de Treviño	36 °C	−6 °C	70 km/h	15 mm	2 cm
Ribera del Ebro de La Rioja	36 °C	−4 °C	70 km/h	15 mm	2 cm

Yellow thresholds from AEMET's warning plan. Orange and red need more. Storms have no numeric threshold.

Tips for the Camino Vasco del Interior

Check AEMET's forecast the evening before each stage, and the zone's warnings on the Climaviso map.
In winter, check the snow warnings before climbing to San Adrián and crossing the Llanada alavesa.
In summer, start early on the La Rioja stages: heat is the top reason for a warning in July and August.
In June, watch for storms: it's the route's busiest month for warnings.
A warning covers the whole zone: it doesn't mean it will happen on your stage, but it does mean you should keep an eye out.

Frequently asked questions

What's the best month to walk the Camino Vasco del Interior?

By warnings, February: on average, 0.7 warning days if you walk the 8 stages that month. Then April and October. The month with the most warnings is June, with 2.3 days.

Which section of the Camino Vasco del Interior gets the most rain warnings?

Gipuzkoa: on average, a rain warning on 8% of days, mostly in June, September and November.

Does the Camino Vasco del Interior get hot enough for warnings in summer?

In July and August, the section with the most heat warnings is La Rioja: a heat warning on 28% of days, on average.

Can it snow on the Camino Vasco del Interior?

Yes, above all on the mountain sections: snow warnings bunch up in the Llanada alavesa, Condado de Treviño and Gipuzkoa interior zones, in January, February and December. There, yellow needs 2 cm in 24 hours.

What should I do if there's a warning on my stage?

A yellow warning calls for attention, not cancelling: check the forecast, set off early if it's for heat and have a plan B for storms or snow on a pass. With orange or red, follow Civil Protection's and the hostels' advice, and consider shortening or changing the stage.

This is not a forecast: it counts the warnings AEMET issued on those dates in past years. A warning is a forecast that a threshold will be crossed in the zone, not damage.