Category: Extremes affecting Nigeria

Heat wave occuring from March 03 2026 to March 13 2026 at 7.0°N 7.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Cameroon
  • Nigeria

Duration: 11 days

Time span: March 03 2026 to March 13 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 30.3 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 34.2 °C

Event center: 7.0°N 7.0°E

Area affected: 488319 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_2026-Mar-03_to_2026-Mar-13_7.0_7.0

Heat wave occuring from February 19 2026 to April 29 2026 at -24.0°S 9.0°E

Download data: JSON

Event type: Heat wave

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

  • Angola
  • Antarctica
  • Benin
  • Cameroon
  • Congo
  • Congo DRC
  • Equatorial Guinea
  • Eswatini
  • French Southern Territories
  • Gabon
  • Ghana
  • Lesotho
  • Madagascar
  • Malawi
  • Mauritius
  • Mozambique
  • Namibia
  • Nigeria
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 70 days

Time span: February 19 2026 to April 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 11.3 °C
  • Maximum temperature anomaly: 22.4 °C
  • Maximum temperature: 34.8 °C

Event center: -24.0°S 9.0°E

Area affected: 37900007 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_2026-Feb-19_to_2026-Apr-29_9.0_-24.0

Cold spell occuring from March 20 2026 to March 23 2026 at 11.5°N 15.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Nigeria

Duration: 4 days

Time span: March 20 2026 to March 23 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 29.7 °C
  • Minimum temperature anomaly: -3.8 °C
  • Minimum temperature: 28.0 °C

Event center: 11.5°N 15.5°E

Area affected: 87946 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-20_to_2026-Mar-23_15.5_11.5

Cold spell occuring from March 16 2026 to March 18 2026 at 13.0°N 4.5°E

Download data: JSON

Event type: Cold spell

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

  • Mali
  • Niger
  • Nigeria

Duration: 3 days

Time span: March 16 2026 to March 18 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 26.8 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 23.9 °C

Event center: 13.0°N 4.5°E

Area affected: 119412 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-18_4.5_13.0

Cold spell occuring from February 15 2026 to March 14 2026 at -2.5°S 36.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Central African Republic
  • Chad
  • Congo, The Democratic Republic of the
  • Egypt
  • Eritrea
  • Ethiopia
  • Kenya
  • Libya
  • Mozambique
  • Nigeria
  • Somalia
  • South Sudan
  • Sudan
  • Tanzania, United Republic of
  • Uganda

Duration: 28 days

Time span: February 15 2026 to March 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 22.8 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: 7.9 °C

Event center: -2.5°S 36.0°E

Area affected: 6030435 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-Feb-15_to_2026-Mar-14_36.0_-2.5

Heat wave occuring from February 04 2026 to February 09 2026 at 6.0°N 3.0°E

Download data: JSON

Event type: Heat wave

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

  • Nigeria

Duration: 6 days

Time span: February 04 2026 to February 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 1.5 °C
  • Maximum temperature: 29.3 °C

Event center: 6.0°N 3.0°E

Area affected: 521433 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_2026-Feb-04_to_2026-Feb-09_3.0_6.0

Cold spell occuring from September 22 2025 to October 07 2025 at 14.5°N 13.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 16 days

Time span: September 22 2025 to October 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 28.1 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 25.4 °C

Event center: 14.5°N 13.0°E

Area affected: 300344 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-Sep-22_to_2025-Oct-07_13.0_14.5

Heat wave occuring from September 04 2025 to September 08 2025 at 8.5°N 359.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Ghana
  • Nigeria
  • Togo

Duration: 5 days

Time span: September 04 2025 to September 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 27.5 °C

Event center: 8.0°N 1.0°E

Area affected: 128351 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-Sep-04_to_2025-Sep-08_359.0_8.5

Heat wave occuring from August 26 2025 to September 11 2025 at 5.0°N 6.5°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Central African Republic
  • Nigeria

Duration: 17 days

Time span: August 26 2025 to September 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 25.7 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 29.1 °C

Event center: 5.0°N 6.5°E

Area affected: 586091 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-Aug-26_to_2025-Sep-11_6.5_5.0

Cold spell occuring from August 24 2025 to August 27 2025 at 13.5°N 14.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Nigeria

Duration: 4 days

Time span: August 24 2025 to August 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 25.8 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: 24.5 °C

Event center: 13.5°N 14.5°E

Area affected: 78223 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-Aug-24_to_2025-Aug-27_14.5_13.5