Montérégie

In October, fallen leaves, withered vegetation, and dry brush become highly flammable. Just a few hours of sunshine and some wind can be enough to make the fire danger index rise again.

It is therefore essential to stay cautious and check with your municipality for the regulations in effect in your area. Cigarette butts, campfires, all-terrain vehicles (ATVs), and the burning of vegetation remain among the main causes of wildland fires at this time of year.

Fall 2025 is marked by particularly mild weather, with warm temperatures and very little rainfall. This dry spell has caused the forest to become increasingly parched—a situation that could persist for some time.

Over the past week, these conditions have led to the outbreak of numerous vegetation fires in the southwestern part of the province. Although the autumn season is well underway, the risk of forest fires remains very real. Due to the prevailing weather conditions, an open fire ban is currently in effect in the region.

In the coming days, fire danger indices will rise in the region. Summer-like temperatures and the lack of rainfall in recent days are contributing to the drying of the forest. This situation is expected to persist for some time.

Although autumn has officially begun, the wildfire risk remains significant. SOPFEU has therefore issued a call for caution, particularly in the southwestern sectors of the province.

With the arrival of September, autumn is already making its presence felt. Vegetation, now fully mature and combined with higher relative humidity, helps reduce the risk of wildfire. Shorter days limit daily drying, while cooler temperatures and morning dew naturally moisten the vegetation.

Despite this lull, vigilance remains necessary. In the fall, the wildfire risk persists, as vegetation begins to wither and fallen leaves on the ground can quickly dry out under the effect of wind and sunlight. This dry fuel can ignite easily and feed surface fires.

Summer-like conditions are prevailing in the region. Under these conditions, surface fires (dead leaves, brush, etc.) are less common, as the greenery and leafing of trees and shrubs are now complete. However, any fires that may occur are likely to burn deeper and be more intense.

Leaf-out and the emergence of greenery are now well underway in the region, bringing summer-like conditions. As a result, surface fires (such as those involving dead leaves and brush) are already less frequent. However, any fires that do occur may burn deeper into the ground and be more intense.

Spring conditions are now well established in the region. As soon as the warm weather sets in, it’s important to remain vigilant. Dead vegetation—such as brush and fallen leaves—can dry out very quickly with just a bit of sun and wind, making it highly flammable.

With the snow gone in Montérégie, spring conditions conducive to vegetation fires are now present. SOPFEU has therefore begun issuing the fire danger index in this region.

In spring, as soon as the nice weather returns, it’s important to stay alert. Dead vegetation—such as dry grass, brush, and dead leaves—can dry out very quickly with just a bit of sun and wind, becoming highly flammable.

With the snow cover now gone in Montérégie, spring conditions that favour vegetation fires are now present. SOPFEU has therefore begun publishing the Fire Danger Index in this region. As soon as the warmer weather arrives, we must stay alert. In the spring, dead vegetation (dry brush, fallen leaves, etc.) dries out very quickly with just a little sun and wind. It then becomes highly flammable.

Le couvert de neige étant disparu en Montérégie, les conditions printanières propices aux feux de végétations sont maintenant en vigueur. La SOPFEU y a donc commencé la diffusion de l’indice du danger d’incendie.

Depuis le début du printemps, le risque d’incendie demeure bas pour le moment. Cependant, dès que le beau temps arrivera, il faudra être vigilants. Au printemps, les végétaux morts (broussailles, feuilles mortes, etc.) ont tendance à s’assécher très rapidement avec un peu de soleil et de vent. Ils deviennent alors hautement inflammables.