ClimavisoSpain's weather warnings in 2020
Full year, 1 January to 31 December 2020.
In 2020, Spain's 182 warning zones added up to 9,642 zone-days with a warning: 8,216 yellow, 1,396 orange and 30 red. Somewhere in Spain had a warning on 316 of the year's 366 days.
Highlights
- 2020 had the fewest zone-days with a red warning of any year from 2019 to 2025: 30. The median was 102.
- 2020 had the fewest zone-days with a cold warning of any year from 2019 to 2025: 200. The median was 668.
By warning type, year by year
All warnings
9,642
Red warnings
30
Rain
3,240
Storms
2,705
Wind
2,728
Heat
2,552
Cold
200
Snow
712
Fog
274
Dust
51
Each bar is a full year. The dark bar is 2020.
Month by month
Zone-days with a warning each month. The tick marks the 2019–2025 median for that month.
The red warnings of 2020
9 days with a red warning somewhere; 30 zone-days in all.
- 5 November red for rain Litoral sur de Valencia
- 20 October red for rain Norte de Cáceres, Sistema Central de Salamanca, Sistema Central de Ávila, Sur de Salamanca, Sur de Ávila
- 27 August red for heat Cumbres de Gran Canaria, Este, sur y oeste de Gran Canaria
- 26 August red for heat Cumbres de Gran Canaria, Este, sur y oeste de Gran Canaria, Fuerteventura, Lanzarote
- 2 August red for heat Sol y Guadalhorce
- 30 July red for heat Bizkaia interior, Bizkaia litoral, Gipuzkoa litoral
- 21 January red for snow Gúdar y Maestrazgo, Interior norte de Castellón
- 20 January red for wind Litoral norte de Alicante, Litoral sur de Valencia · red for snow Altiplano de Murcia, Gúdar y Maestrazgo, Hellín y Almansa, Interior de Alicante, Interior norte de Castellón, Interior sur de Valencia, Litoral norte de Alicante
- 19 January red for wind Litoral norte de Alicante, Litoral sur de Valencia · red for snow Interior de Alicante, Interior sur de Valencia, Litoral norte de Alicante
The zones with the most warning days
| Zone | Province | Warning days | Orange | Red |
|---|---|---|---|---|
| Pirineo de Lleida | Lleida | 115 | 15 | 0 |
| Pirineo oscense | Huesca | 111 | 21 | 0 |
| Pirineo de Girona | Girona | 104 | 13 | 0 |
| Interior norte de Castellón | Castelló/Castellón | 96 | 21 | 2 |
| Prelitoral sur de Tarragona | Tarragona | 90 | 26 | 0 |
| Depresión central de Lleida | Lleida | 89 | 12 | 0 |
| Sierra de Madrid | Madrid | 89 | 9 | 0 |
| Ribera del Ebro de Zaragoza | Zaragoza | 88 | 9 | 0 |
| Prepirineo de Barcelona | Barcelona | 87 | 12 | 0 |
| Valle de Arán | Lleida | 87 | 9 | 0 |
By region
| Region | Zones | Warning days per zone | Earlier years | Change |
|---|---|---|---|---|
| Aragón | 9 | 80 | 90 | -11% |
| Comunidad de Madrid | 3 | 76 | 70 | +8% |
| Cataluña | 16 | 71 | 75 | -5% |
| La Rioja | 2 | 64 | 69 | -8% |
| Illes Balears | 7 | 63 | 70 | -10% |
| Castilla y León | 24 | 60 | 64 | -7% |
| Comunidad Foral de Navarra | 4 | 58 | 70 | -16% |
| Extremadura | 8 | 57 | 48 | +20% |
| Castilla - La Mancha | 17 | 57 | 61 | -8% |
| Comunitat Valenciana | 11 | 52 | 63 | -17% |
| Cantabria | 4 | 50 | 53 | -6% |
| Galicia | 16 | 46 | 41 | +14% |
| Principado de Asturias | 5 | 43 | 37 | +17% |
| País Vasco | 7 | 42 | 44 | -4% |
| Andalucía | 29 | 42 | 44 | -6% |
| Canarias | 13 | 36 | 45 | -20% |
| Región de Murcia | 5 | 35 | 46 | -24% |
| Ciudad de Melilla | 1 | 13 | 18 | -30% |
| Ciudad de Ceuta | 1 | 12 | 19 | -38% |
Average warning days per zone. “Earlier years” is the average of the other full years since 2019.
How to read these numbers
A zone-day is one warning zone with a warning on one day. Spain has 182 zones: ten zones warned on the same day make ten zone-days. A day with several warnings in one zone counts once, at its highest level; each warning type counts once per type.
A warning is a forecast, not a measurement: it says a threshold is expected to be exceeded in a zone. Each zone has its own thresholds (a yellow heat warning doesn't start at the same temperature in Asturias as in Córdoba), so these numbers count how often a warning was issued, not how hot or wet it was. For measured temperature and rain, see AEMET's climate summaries.
Thresholds have barely changed: according to Maldita, maximum-temperature thresholds have changed in only 10 of the 182 zones since 2006, always upwards. More heat warnings are not explained by lower thresholds.
The archive starts on 18 June 2018, so comparisons start in 2019. More on levels, thresholds and zones in how warnings work.
To cite: “Climaviso, from AEMET warnings”.
Other years
2026, so far · 2025 · 2024 · 2023 · 2022 · 2021 · 2020 · 2019
Sources
- Warnings: AEMET's warning archive (CAP format, AEMET OpenData), collected by Climaviso since June 2018.
- Warning levels and issue times: AEMET, how to read warnings (Spanish).
- Threshold changes: Maldita, 5 September 2024 (Spanish).