Category: Heat waves affecting Mexico

Download data: JSON

Event type: Heat wave

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

• Mexico
• United States

Duration: 5 days

Time span: September 08 2025 to September 12 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.2 °C
• Mean temperature: 25.5 °C
• Maximum temperature anomaly: 4.9 °C
• Maximum temperature: 32.0 °C

Event center: 33.0°N 251.5°E

Area affected: 229169 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-08_to_2025-Sep-12_251.5_33.0

Download data: JSON

Event type: Heat wave

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

• Mexico
• United States

Duration: 4 days

Time span: September 03 2025 to September 06 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.5 °C
• Mean temperature: 32.0 °C
• Maximum temperature anomaly: 5.6 °C
• Maximum temperature: 34.4 °C

Event center: 26.5°N 261.0°E

Area affected: 88127 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-03_to_2025-Sep-06_261.0_26.5

Download data: JSON

Event type: Heat wave

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

• Mexico
• United States

Duration: 5 days

Time span: August 28 2025 to September 01 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.3 °C
• Mean temperature: 31.1 °C
• Maximum temperature anomaly: 4.8 °C
• Maximum temperature: 34.4 °C

Event center: 26.5°N 257.0°E

Area affected: 177956 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-28_to_2025-Sep-01_257.0_26.5

Download data: JSON

Event type: Heat wave

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

• Mexico
• United States

Duration: 4 days

Time span: June 29 2025 to July 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.6 °C
• Mean temperature: 32.5 °C
• Maximum temperature anomaly: 4.5 °C
• Maximum temperature: 38.4 °C

Event center: 30.5°N 247.0°E

Area affected: 104198 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-Jun-29_to_2025-Jul-02_247.0_30.5

Download data: JSON

Event type: Heat wave

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

• Mexico
• United States

Duration: 8 days

Time span: June 29 2025 to July 06 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.0 °C
• Mean temperature: 28.9 °C
• Maximum temperature anomaly: 4.2 °C
• Maximum temperature: 31.8 °C

Event center: 29.5°N 268.0°E

Area affected: 460320 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-Jun-29_to_2025-Jul-06_268.0_29.5