ClimavisoIs it hot or rainy during San Fermín?
San Fermín, from 6 to 14 July. Warnings 2018–2026; updated 27 October 2026.
San Fermín falls in high July, in a city where summer brings as much heat as afternoon storms. This is what the official warnings say about every year since 2018, from the chupinazo to the Pobre de mí.
7
years with some warning
of 9, on the festival's dates
6
years with a rain or storm warning
of 9
6
years with orange or red
of 9
2
years with no warning at all
of 9
The short answer
In 7 of the 9 years since 2018 there was some warning in Pamplona's zone during San Fermín. For rain or storms, in 6; at orange or red, in 6. The most common reason was storms.
This is not a forecast: it counts how often AEMET warned on those dates in recent years. A warning is a forecast that a threshold will be crossed in the zone, not damage or the rain that fell.
San Fermín and the weather
San Fermín starts with the chupinazo rocket at noon on 6 July, has a bull run every morning from the 7th to the 14th at eight, and ends with the Pobre de mí at midnight on the 14th. That's nine days spent almost entirely in the street.
On these dates, Pamplona's zone has had warnings mostly for afternoon storms and for heat, sometimes on the same day. Below is every edition since 2018, day by day.
Day by day, year by year
Days of July
Each row is a year and each square a day: the colour is that day's highest warning in the zone. The small squares are the 3 days before and after the festival. Hover or tap a square for the date and the reason.
The festival against the weeks around it
During the festival there was a warning on 38% of days; in the three weeks before and after, on 34%: the festival's dates don't stand out from the weeks around them.
Share of days with some warning in the zone, adding up every year since 2018; the colour is each day's highest level.
Which kinds of warning
Years with at least one warning of that kind during the festival; a year can have several.
The most serious days
- orange14 July 2026: orange warning for heat · part of an episode
- orange12 July 2026: orange warning for heat · part of an episode
- orange9 July 2026: orange warning for heat, rain and storms · part of an episode
- orange7 July 2026: orange warning for heat · part of an episode
- orange6 July 2026: orange warning for heat · part of an episode
- orange13 July 2025: orange warning for rain and storms · part of an episode
- orange12 July 2025: orange warning for rain and storms · part of an episode
- orange11 July 2025: orange warning for rain and storms · part of an episode
- orange14 July 2023: orange warning for heat · part of an episode
- orange7 July 2023: orange warning for rain and storms · part of an episode
- orange6 July 2023: orange warning for rain and storms · part of an episode
- orange13 July 2022: orange warning for heat · part of an episode
Year by year
| Year | Warning days | Highest level | Why |
|---|---|---|---|
| 2026 | 9 | orange | heat, storms and rain · part of an episode |
| 2025 | 3 | orange | rain and storms · part of an episode |
| 2024 | 0 | No warnings | — |
| 2023 | 5 | orange | rain, storms and heat · part of an episode |
| 2022 | 5 | orange | storms and heat · part of an episode |
| 2021 | 1 | yellow | heat |
| 2020 | 0 | No warnings | — |
| 2019 | 4 | orange | rain and storms · part of an episode |
| 2018 | 4 | orange | storms and rain |
Warnings are for the Centro de Navarra zone, which includes Pamplona: a warning covers the whole zone, not one street or route.
In 2020 and 2021, because of the pandemic, many festivals were cancelled or moved. Here we count warnings on their usual dates.
When a warning is issued in Pamplona's zone
| Yellow | Orange | Red | |
|---|---|---|---|
| Heat (high) | 36 °C | 39 °C | 42 °C |
| Cold (low) | −4 °C | −8 °C | −12 °C |
| Wind (gusts) | 70 km/h | 90 km/h | 130 km/h |
| Rain in 1 hour | 15 mm | 30 mm | 60 mm |
| Rain in 12 hours | 40 mm | 80 mm | 120 mm |
| Snow in 24 hours | 2 cm | 5 cm | 20 cm |
Thresholds for the Centro de Navarra zone in AEMET's warning plan. Storms have no numeric threshold: yellow for strong storms, orange for very strong ones. More in what each colour means.
What each colour means for an outdoor festival
- YellowWeather that isn't unusual but can affect particular activities, such as an outdoor event or a procession. Keep an eye on updates and on what the organisers say.
- OrangeSignificant risk: unusual weather that can cause damage. This is when organisers may change times or routes, or call events off.
- RedExtraordinary risk: very intense weather. Follow the instructions of Civil Protection and the city council.
If you're going to San Fermín
- Summer storms tend to come in the afternoon: keep a light raincoat in your bag for the afternoon and evening events.
- With a heat warning, water and shade: it's many hours on your feet in a crowd.
- An orange storm warning can mean hail or strong gusts: follow the city council's and Civil Protection's instructions.
- Check AEMET's forecast in the days before and your zone's warnings on the Climaviso map.
The next edition
San Fermín 2027: 6–14 July. 252 days to go.
AEMET's forecast for those dates comes out only a few days ahead: today nobody can know what the weather will be. What we do know is how previous years went.
See today's warnings on the map
Frequently asked questions
Is it hot or rainy during San Fermín?
In 6 of the 9 years since 2018 there was a rain or storm warning in Pamplona's zone during San Fermín; the latest in 2026.
Has there been a red warning in Pamplona during San Fermín?
Not in the 9 years since 2018. The highest level was orange, in 2018, 2019, 2022, 2023, 2025 and 2026.
What was the worst year for San Fermín in Pamplona?
2026: 9 days with a warning, at orange, for heat, storms and rain.
Does it get hot enough for a warning during San Fermín?
A yellow heat warning is issued in Pamplona's zone from a 36 °C high. There was a heat warning in 4 of the 9 years since 2018.
What will the weather be like at San Fermín in 2027 in Pamplona?
It can't be known yet: AEMET publishes its forecast only a few days ahead. In the 9 years since 2018 there was some warning in 7.
More on Pamplona
- Bad weather in Pamplona, month by month
- Spain in July: where the warnings are
- Pamplona's warnings day by day since 2018