Category: Heat waves affecting Madagascar

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 7 days

Time span: December 13 2025 to December 19 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.8 °C
• Mean temperature: 27.6 °C
• Maximum temperature anomaly: 4.5 °C
• Maximum temperature: 31.0 °C

Event center: -26.0°S 39.5°E

Area affected: 159756 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-Dec-13_to_2025-Dec-19_39.5_-26.0

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 24 days

Time span: November 24 2025 to December 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 27.6 °C
• Maximum temperature anomaly: 4.1 °C
• Maximum temperature: 31.2 °C

Event center: -21.0°S 45.5°E

Area affected: 103830 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-Nov-24_to_2025-Dec-17_45.5_-21.0

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 9 days

Time span: August 10 2025 to August 18 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.1 °C
• Mean temperature: 22.4 °C
• Maximum temperature anomaly: 3.6 °C
• Maximum temperature: 27.8 °C

Event center: -17.5°S 46.0°E

Area affected: 195609 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-10_to_2025-Aug-18_46.0_-17.5

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 5 days

Time span: July 11 2025 to July 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.7 °C
• Mean temperature: 21.8 °C
• Maximum temperature anomaly: 2.5 °C
• Maximum temperature: 23.4 °C

Event center: -27.5°S 48.0°E

Area affected: 167403 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-Jul-11_to_2025-Jul-15_48.0_-27.5

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 10 days

Time span: March 26 2025 to April 04 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.1 °C
• Mean temperature: 28.0 °C
• Maximum temperature anomaly: 1.8 °C
• Maximum temperature: 29.7 °C

Event center: -13.5°S 47.5°E

Area affected: 137237 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-26_to_2025-Apr-04_47.5_-13.5

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 6 days

Time span: October 09 2024 to October 14 2024

Statistics over entire affected area:

• Mean temperature anomaly: 1.5 °C
• Mean temperature: 26.2 °C
• Maximum temperature anomaly: 3.1 °C
• Maximum temperature: 29.7 °C

Event center: -22.5°S 42.5°E

Area affected: 166384 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_2024-Oct-09_to_2024-Oct-14_42.5_-22.5

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 5 days

Time span: May 28 2023 to June 01 2023

Statistics over entire affected area:

• Mean temperature anomaly: 1.0 °C
• Mean temperature: 27.4 °C
• Maximum temperature anomaly: 1.4 °C
• Maximum temperature: 27.9 °C

Event center: -14.0°S 46.5°E

Area affected: 78119 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_2023-May-28_to_2023-Jun-01_46.5_-14.0

Download data: JSON

Event type: Heat wave

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

• Madagascar

Duration: 6 days

Time span: April 11 2023 to April 16 2023

Statistics over entire affected area:

• Mean temperature anomaly: 1.1 °C
• Mean temperature: 26.4 °C
• Maximum temperature anomaly: 2.4 °C
• Maximum temperature: 27.7 °C

Event center: -16.0°S 49.0°E

Area affected: 124000 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_2023-Apr-11_to_2023-Apr-16_49.0_-16.0