Category: Extremes affecting Portugal

(ongoing) Heat wave occuring from April 02 2026 to May 03 2026 at 41.5°N 10.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Albania
  • Algeria
  • Andorra
  • Austria
  • Bosnia and Herzegovina
  • Canarias
  • Croatia
  • Denmark
  • Faroe Islands
  • Finland
  • France
  • Germany
  • Greece
  • Iceland
  • Ireland
  • Italy
  • Libya
  • Mauritania
  • Montenegro
  • Morocco
  • Netherlands
  • Norway
  • Portugal
  • Serbia
  • Slovenia
  • Spain
  • Sweden
  • Switzerland
  • Tunisia
  • United Kingdom

Duration: 32 days

Time span: April 02 2026 to May 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 14.9 °C
  • Maximum temperature anomaly: 12.0 °C
  • Maximum temperature: 31.2 °C

Event center: 41.5°N 370.0°E

Area affected: 7764994 km$^2$


Fig. 1: unavailable since event is ongoing.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Apr-02_to_2026-May-03_10.0_41.5

(ongoing) Heat wave occuring from October 16 2022 to May 03 2026 at 10.5°N 294.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Afghanistan
  • Albania
  • Algeria
  • Andorra
  • Angola
  • Antarctica
  • Argentina
  • Armenia
  • Aruba
  • Australia
  • Austria
  • Azerbaijan
  • Azores
  • Bahamas
  • Bahrain
  • Bangladesh
  • Belarus
  • Belgium
  • Belize
  • Benin
  • Bhutan
  • Bolivia
  • Bosnia and Herzegovina
  • Botswana
  • Brazil
  • Brunei Darussalam
  • Bulgaria
  • Burkina Faso
  • Burundi
  • Cabo Verde
  • Cambodia
  • Cameroon
  • Canada
  • Canarias
  • Central African Republic
  • Chad
  • Chile
  • China
  • Colombia
  • Congo
  • Congo DRC
  • Costa Rica
  • Croatia
  • Cuba
  • Cyprus
  • Czech Republic
  • Côte d’Ivoire
  • Denmark
  • Djibouti
  • Dominican Republic
  • Ecuador
  • Egypt
  • El Salvador
  • Equatorial Guinea
  • Eritrea
  • Estonia
  • Eswatini
  • Ethiopia
  • Falkland Islands
  • Faroe Islands
  • Fiji
  • Finland
  • France
  • French Guiana
  • French Southern Territories
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Greece
  • Greenland
  • Guatemala
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Honduras
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Iran
  • Iraq
  • Ireland
  • Israel
  • Italy
  • Jamaica
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kuwait
  • Kyrgyzstan
  • Laos
  • Latvia
  • Lebanon
  • Lesotho
  • Liberia
  • Libya
  • Lithuania
  • Luxembourg
  • Madagascar
  • Madeira
  • Malawi
  • Malaysia
  • Mali
  • Martinique
  • Mauritania
  • Mauritius
  • Mexico
  • Moldova
  • Mongolia
  • Montenegro
  • Morocco
  • Mozambique
  • Myanmar
  • Namibia
  • Nepal
  • Netherlands
  • New Caledonia
  • New Zealand
  • Nicaragua
  • Niger
  • Nigeria
  • North Korea
  • North Macedonia
  • Norway
  • Oman
  • Pakistan
  • Palau
  • Palestinian Territory
  • Panama
  • Papua New Guinea
  • Paraguay
  • Peru
  • Philippines
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Romania
  • Russian Federation
  • Rwanda
  • Réunion
  • Saint Eustatius
  • Saint Lucia
  • Samoa
  • Saudi Arabia
  • Senegal
  • Serbia
  • Sierra Leone
  • Slovakia
  • Slovenia
  • Solomon Islands
  • Somalia
  • South Africa
  • South Georgia and the South Sandwich Islands
  • South Korea
  • South Sudan
  • Spain
  • Sri Lanka
  • Sudan
  • Suriname
  • Sweden
  • Switzerland
  • Syria
  • Tajikistan
  • Tanzania
  • Thailand
  • Timor-Leste
  • Togo
  • Tunisia
  • Turkiye
  • Turkmenistan
  • Turks and Caicos Islands
  • Uganda
  • Ukraine
  • United Arab Emirates
  • United Kingdom
  • United States
  • Uruguay
  • Uzbekistan
  • Vanuatu
  • Venezuela
  • Vietnam
  • Yemen
  • Zambia
  • Zimbabwe

Duration: 1296 days

Time span: October 16 2022 to May 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.4 °C
  • Mean temperature: 18.1 °C
  • Maximum temperature anomaly: 33.2 °C
  • Maximum temperature: 46.7 °C

Event center: 10.5°N 294.0°E

Area affected: 509588681 km$^2$


Fig. 1: unavailable since event is ongoing.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Oct-16_to_2026-May-03_294.0_10.5

Cold spell occuring from March 16 2026 to March 22 2026 at 33.5°N 338.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal

Duration: 7 days

Time span: March 16 2026 to March 22 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 15.1 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 10.3 °C

Event center: 33.5°N 338.0°E

Area affected: 1421435 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2026-Mar-16_to_2026-Mar-22_338.0_33.5

Cold spell occuring from March 05 2026 to March 10 2026 at 34.5°N 348.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal

Duration: 6 days

Time span: March 05 2026 to March 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 14.3 °C
  • Minimum temperature anomaly: -2.5 °C
  • Minimum temperature: 11.8 °C

Event center: 34.5°N 348.0°E

Area affected: 680308 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2026-Mar-05_to_2026-Mar-10_348.0_34.5

Cold spell occuring from November 20 2025 to November 22 2025 at 43.0°N 354.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal
  • Spain

Duration: 3 days

Time span: November 20 2025 to November 22 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 3.9 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: -1.2 °C

Event center: 43.0°N 354.5°E

Area affected: 89392 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Nov-20_to_2025-Nov-22_354.5_43.0

Cold spell occuring from November 11 2025 to November 13 2025 at 40.0°N 332.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal

Duration: 3 days

Time span: November 11 2025 to November 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 15.0 °C
  • Minimum temperature anomaly: -3.3 °C
  • Minimum temperature: 13.8 °C

Event center: 40.0°N 332.0°E

Area affected: 125602 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Nov-11_to_2025-Nov-13_332.0_40.0

Heat wave occuring from March 30 2025 to April 15 2025 at 24.0°N 344.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Morocco
  • Portugal
  • Spain

Duration: 17 days

Time span: March 30 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 19.6 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 22.1 °C

Event center: 24.0°N 344.0°E

Area affected: 1261790 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-30_to_2025-Apr-15_344.0_24.0

Cold spell occuring from March 12 2025 to March 18 2025 at 44.5°N 359.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Andorra
  • Belgium
  • France
  • Portugal
  • Spain
  • United Kingdom

Duration: 7 days

Time span: March 12 2025 to March 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 6.3 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: -1.6 °C

Event center: 44.5°N 359.5°E

Area affected: 1142813 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Mar-12_to_2025-Mar-18_359.5_44.5

Heat wave occuring from March 10 2025 to March 13 2025 at 28.5°N 346.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal
  • Spain

Duration: 4 days

Time span: March 10 2025 to March 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 18.8 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 19.7 °C

Event center: 28.5°N 346.5°E

Area affected: 134142 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-10_to_2025-Mar-13_346.5_28.5

Cold spell occuring from December 29 2024 to January 01 2025 at 41.5°N 355.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Portugal
  • Spain

Duration: 4 days

Time span: December 29 2024 to January 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 0.1 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: -1.7 °C

Event center: 41.5°N 355.5°E

Area affected: 57695 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2024-Dec-29_to_2025-Jan-01_355.5_41.5