Category: Extremes affecting French Guiana

Heat wave occuring from April 21 2025 to April 30 2025 at 5.5°N 306.5°E

Download data: JSON

Event type: Heat wave

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

  • French Guiana
  • Suriname

Duration: 10 days

Time span: April 21 2025 to April 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 27.3 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 28.1 °C

Event center: 5.5°N 306.5°E

Area affected: 156943 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-Apr-21_to_2025-Apr-30_306.5_5.5

Heat wave occuring from April 08 2025 to April 14 2025 at 4.5°N 307.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 7 days

Time span: April 08 2025 to April 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 26.8 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 27.6 °C

Event center: 4.5°N 307.5°E

Area affected: 209831 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-Apr-08_to_2025-Apr-14_307.5_4.5

Cold spell occuring from March 27 2025 to April 01 2025 at 3.0°N 304.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 6 days

Time span: March 27 2025 to April 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 23.8 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 22.5 °C

Event center: 3.0°N 304.0°E

Area affected: 95634 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-27_to_2025-Apr-01_304.0_3.0

Heat wave occuring from January 30 2025 to February 02 2025 at 5.5°N 306.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 4 days

Time span: January 30 2025 to February 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 27.4 °C

Event center: 5.5°N 306.5°E

Area affected: 83163 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-Jan-30_to_2025-Feb-02_306.5_5.5

Cold spell occuring from January 21 2025 to January 27 2025 at 3.5°N 303.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 7 days

Time span: January 21 2025 to January 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 23.5 °C
  • Minimum temperature anomaly: -2.9 °C
  • Minimum temperature: 21.9 °C

Event center: 3.5°N 303.5°E

Area affected: 120370 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-Jan-21_to_2025-Jan-27_303.5_3.5

Heat wave occuring from February 28 2023 to March 11 2023 at 3.5°N 320.0°E

Download data: JSON

Event type: Heat wave

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

  • French Guiana

Duration: 12 days

Time span: February 28 2023 to March 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 1.5 °C
  • Maximum temperature: 27.4 °C

Event center: 3.5°N 320.0°E

Area affected: 752819 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-Feb-28_to_2023-Mar-11_320.0_3.5

Cold spell occuring from January 04 2023 to January 11 2023 at 4.5°N 305.0°E

Download data: JSON

Event type: Cold spell

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

  • French Guiana
  • Guyana
  • Suriname

Duration: 8 days

Time span: January 04 2023 to January 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -1.9 °C
  • Minimum temperature: 23.3 °C

Event center: 4.5°N 305.0°E

Area affected: 92401 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_2023-Jan-04_to_2023-Jan-11_305.0_4.5

Cold spell occuring from November 16 2022 to February 27 2023 at 4.0°N 299.5°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • Colombia
  • French Guiana
  • Guyana
  • Suriname
  • Venezuela, Bolivarian Republic of

Duration: 104 days

Time span: November 16 2022 to February 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 24.1 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 8.4 °C

Event center: 4.0°N 299.5°E

Area affected: 4959724 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_2022-Nov-16_to_2023-Feb-27_299.5_4.0

Heat wave occuring from November 13 2022 to November 18 2022 at 2.5°N 316.0°E

Download data: JSON

Event type: Heat wave

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

  • French Guiana

Duration: 6 days

Time span: November 13 2022 to November 18 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 0.7 °C
  • Mean temperature: 27.6 °C
  • Maximum temperature anomaly: 1.2 °C
  • Maximum temperature: 28.2 °C

Event center: 2.5°N 316.0°E

Area affected: 209889 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_2022-Nov-13_to_2022-Nov-18_316.0_2.5

Cold spell occuring from October 09 2022 to October 15 2022 at 3.5°N 305.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 7 days

Time span: October 09 2022 to October 15 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 24.4 °C

Event center: 3.5°N 305.0°E

Area affected: 55513 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_2022-Oct-09_to_2022-Oct-15_305.0_3.5