Little Relief: Successive Heatwaves Deepen France’s July Fire-Weather Crisis
Updated July 13, 2026, with published daily station observations through July 11 and provisional national extrema for July 12.
France entered the middle of July without a meaningful national reset. A historic heatwave from June 17–301 was followed, after only brief and uneven cooling, by another episode beginning around July 4. The result was not simply a new set of high temperatures: soils and vegetation had less time to recover before the heat returned.
Météo-France described recurrent periods of increasingly hot weather since May as anticyclonic blocking repeatedly affected western Europe. The episode intensified further on July 12. Météo-France provisionally reported 42.3°C at Pissos in the Landes, 41.8°C at Saintes, and temperatures of 40.9°C at several stations in western and central France.2
The nights were also exceptional near the Atlantic. Météo-France reported monthly minimum-temperature records of 24.3°C at Saint-Nazaire and 23.9°C at Nantes during the night of July 11–12. These provisional and record statements come from the national service’s July 12 situational update.
The official Météo-France daily data archive (which provides finalized daily extremes) only contained observations through July 11 at the time of publication. The station charts below reflect these finalized daily values. Provisional July 12 observations are discussed in the text based on Météo-France’s national updates.
Two Surges, Little Time to Recover
At Toulouse-Blagnac, the highest temperature in the June–July series was 40.3°C on June 23. Temperatures eased around the turn of the month, then climbed again during the first full week of July. By July 11, the minimum was still 22.2°C, above Toulouse’s July 1991–2020 mean minimum of 17.0°C.
The same two-stage pattern appears across the selected network, but the timing and magnitude differ by location. Brive reached 43.0°C on June 22; Châteauroux-Déols reached 41.1°C that day; Paris-Montsouris reached 40.6°C on June 24. During the renewed July heat, Carcassonne reached 40.5°C on July 7, Perpignan 40.9°C on July 9, and Saint-Girons 38.8°C on July 11.
Explore the observations: Open the Toulouse-Blagnac daily view in the Météo-France Explorer to inspect the station data and change the period or variable. The full Météo-France Explorer provides the same access for stations across France.
Heat and Fire Danger Are Connected—but Not Identical
Heat does not, by itself, identify how a fire started. Ignitions can have different causes, and station observations away from a fire perimeter cannot reconstruct the conditions at the flame front. What the wider evidence does show is an environment increasingly favorable to fire spread.
Météo-France reported that average soil moisture across France had fallen by July 9 to its lowest level recorded for that point in the year, below early-July levels in 2022 and 2025. The service described forest-fire danger as exceptional across the country as intense heat combined with dry soils.3 Strong regional winds and low humidity can further worsen fire weather locally, but their influence varies by place and hour.
As of July 10, Sécurité civile said that more than 25,000 hectares of forest and vegetation had burned in France since the start of 2026.4 This annual total should not be read as an area caused solely by the July heatwave.
The points are approximate incident locations, not official fire perimeters. Pink shading identifies the departments containing the selected incidents.
| Location | Situation date | Provisional surface traversed by fire | Reported status | Source |
|---|---|---|---|---|
| Pyrénées-Orientales (Trévillach/Aspres massif) | July 6, 12:00 | 4,649 ha traversed | Firefighting operations continuing | Pyrénées-Orientales Prefecture |
| Drôme (Diois) | July 10 | about 3,500–3,700 ha | Active; Montmaur-en-Diois sector fixed | Le Dauphiné Libéré |
| Indre (Saint-Michel-en-Brenne) | July 9 | more than 1,000 ha | Numerous flare-ups reported at 14:00 | Indre Prefecture |
| Lot (Arcambal) | July 8 | 128 ha | Fixed at 06:32 | Lot Prefecture |
| Fontainebleau forest / Noisy-sur-École, Seine-et-Marne | July 13, morning | approximately 800 ha traversed | Active; around 400 firefighters and two Canadair aircraft mobilized | AFP / Boursorama |
The incident figures above retain their reporting dates. They are not a current national incident inventory and should not be added together as a complete burned-area estimate.
Regional Station Context
The following stations are regional reference points. They document the larger heat episode but do not measure conditions at the named fire perimeters or establish ignition causes. A WIGOS identifier is the World Meteorological Organization’s globally unique station identifier.
Western France: The July 12 Peaks
Pissos (Landes) and Saintes (Charente-Maritime) recorded the highest provisional temperatures of the renewed July heatwave. Pissos reached a provisional 42.3°C on July 12, according to Météo-France, while Saintes reached a provisional 41.8°C. Because no qualifying 1991–2020 monthly normals for Pissos or Saintes were available in the WMO normals files used for this analysis, their charts show the official daily temperature evolution through July 11 without a climatological baseline.
Montélimar and Châteauroux
Montélimar (WIGOS 0-20000-0-07577) provides context for the Drôme, while Châteauroux-Déols (WIGOS 0-20000-0-07354) provides context for the Indre. Both show repeated warmth, but the daily timing differs: Montélimar’s series peaked at 39.6°C on June 24, while Châteauroux reached 41.1°C on June 22 and climbed to 38.3°C on July 10.
Brive, Carcassonne and Perpignan
Brive (WIGOS 0-20000-0-07438), roughly 70–80 km north of Arcambal, recorded 43.0°C on June 22 and 40.4°C on July 10. Carcassonne (WIGOS 0-20000-0-07635) reached 40.5°C on July 7. Perpignan (WIGOS 0-20000-0-07747) reached 40.9°C on July 9 after a minimum of 26.6°C on July 8, showing how daytime extremes and limited nighttime cooling can occur together.
Saint-Girons: A Corrected Station Record
Saint-Girons (WIGOS 0-20000-0-07627) reached 38.8°C on July 11, 13.3°C above its July 1991–2020 mean maximum of 25.5°C. This update also corrects the reproducibility mapping: the current Météo-France national station ID is 09289001. The earlier draft’s 09261001 belongs to a historical Saint-Girons series that ended in 1950.
The Heat Shifted Eastward
After the July 12 peak in western France, Météo-France expected lower temperatures along parts of the Atlantic coast on July 13 while the most intense heat moved into central regions. For July 14, its July 12 forecast still placed widespread temperatures above 35°C from the Toulouse area through central France, Burgundy and the Paris region, with 40°C possible from the Var interior toward the Rhône valley and Lyon.5
Troyes-Barberey (WIGOS 0-20000-0-07168) reached 36.3°C on July 7 and 35.7°C on July 11. Paris-Montsouris (WIGOS 0-20000-0-07156) reached 36.7°C on July 11, with a minimum of 22.3°C. These are observations, not confirmation of the subsequent forecast.
For Paris, repeated warm nights add to cumulative heat exposure, especially where the urban fabric slows nighttime cooling. The related article on tropical nights during the June 2026 heatwave examines that issue in more detail.
Conclusion
The strongest conclusion is about sequence: two substantial heat episodes arrived with only a short interval between them, and the July episode continued to migrate across the country. The station archive confirms repeated large departures from monthly normals, while Météo-France’s national assessment documents record-low early-July soil moisture and exceptional fire danger.
The evidence does not show that heat caused every ignition, that a regional station measured a fire perimeter, or that provisional July 12 values are already equivalent to published daily observations. Keeping those boundaries visible makes the event more understandable—and the analysis more reproducible.
Frequently Asked Questions
Why did successive heatwaves increase wildfire danger in France?
Repeated high temperatures, limited rainfall and increasingly dry soils made vegetation more receptive to burning and favored faster fire spread. These conditions affect fire danger, but they do not establish the ignition cause of any individual wildfire.
How hot did the July 2026 episode become?
Météo-France provisionally reported 42.3°C at Pissos at 17:00 on July 12. In the published daily station archive used for this article, Perpignan reached 40.9°C on July 9 and Saint-Girons reached 38.8°C on July 11.
When was this article last updated?
The article was updated on July 13, 2026. Its charts use Météo-France official daily observations available through July 11. National extreme values reported separately for July 12 are explicitly identified as provisional.
How can I inspect the station observations?
Use the Météo-France Explorer on Climate Explorer to select a station, daily resolution and date range, then inspect charts or the underlying data table. WMO Climate Normals can be used separately as a 1991–2020 monthly baseline.
Data Annex
Methods and cutoff
The chart dataset was downloaded through the helper functions in the local /clima/2025/meteofrance project, which resolve Météo-France’s daily rr-t-vent resources on data.gouv.fr. The analysis window is June 1–July 11, 2026, matching the latest available official daily archive data. Daily maximum (TX) and minimum (TN) temperatures were compared with monthly 1991–2020 WMO normal maxima and minima. A monthly normal is a climatological average, not a day-specific expected value.
The national July 12 observations in the narrative are separately attributed to Météo-France and retain the service’s provisional label. Fire-incident figures retain each source’s situation date.
| Station | Météo-France ID | WIGOS ID | Latitude | Longitude | Elevation |
|---|---|---|---|---|---|
| Saint-Girons | 09289001 | 0-20000-0-07627 | 43.0053 | 1.1068 | 414 m |
| Troyes-Barberey | 10030001 | 0-20000-0-07168 | 48.3247 | 4.0200 | 112 m |
| Carcassonne | 11069001 | 0-20000-0-07635 | 43.2153 | 2.2955 | 128 m |
| Brive | 19031008 | 0-20000-0-07438 | 45.1467 | 1.4733 | 115 m |
| Montélimar | 26198001 | 0-20000-0-07577 | 44.5812 | 4.7330 | 73 m |
| Toulouse-Blagnac | 31069001 | 0-20000-0-07630 | 43.6210 | 1.3788 | 151 m |
| Châteauroux-Déols | 36063001 | 0-20000-0-07354 | 46.8698 | 1.7410 | 158 m |
| Perpignan | 66136001 | 0-20000-0-07747 | 42.7372 | 2.8728 | 42 m |
| Paris-Montsouris | 75114001 | 0-20000-0-07156 | 48.8217 | 2.3378 | 75 m |
| Pissos | 40227001 | N/A | 44.31433 | -0.787167 | 59 m |
| Saintes | 17415003 | N/A | 45.76117 | -0.652000 | 38 m |
| Station | Highest daily maximum in series | Date | Monthly 1991–2020 mean maximum for peak month | Difference |
|---|---|---|---|---|
| Saint-Girons | 38.8°C | July 11 | 25.5°C | +13.3°C |
| Troyes-Barberey | 40.8°C | June 27 | 23.5°C | +17.3°C |
| Carcassonne | 40.5°C | July 7 | 28.8°C | +11.7°C |
| Brive | 43.0°C | June 22 | 25.7°C | +17.3°C |
| Montélimar | 39.6°C | June 24 | 26.9°C | +12.7°C |
| Toulouse-Blagnac | 40.3°C | June 23 | 25.7°C | +14.6°C |
| Châteauroux-Déols | 41.1°C | June 22 | 23.8°C | +17.3°C |
| Perpignan | 40.9°C | July 9 | 29.5°C | +11.4°C |
| Paris-Montsouris | 40.6°C | June 24 | 23.4°C | +17.2°C |
Data Sources
Footnotes
Météo-France: Canicule—poursuite des très fortes chaleurs et nuits chaudes, updated July 12, 2026↩︎
Météo-France: Canicule—poursuite des très fortes chaleurs et nuits chaudes, updated July 12, 2026↩︎
AFP, citing Sécurité civile: more than 25,000 hectares burned since the start of 2026, July 10, 2026↩︎
Météo-France: Canicule—poursuite des très fortes chaleurs et nuits chaudes, updated July 12, 2026↩︎