Above-normal temperatures expected across Nova Scotia
Nova Scotia is bracing for a warmer and wetter than usual summer in 2025, according to the seasonal forecast from The Weather Network. The province, along with much of Atlantic Canada, will experience elevated heat and humidity levels from June through August, a pattern consistent with nationwide climate trends intensified by global warming.
Daytime temperatures are anticipated to rise above seasonal norms, with muggy nights where overnight lows remain unusually high. The presence of moist, stagnant air may drive multiple heat waves, though persistent extreme heat isn’t forecasted at this time. Still, conditions are ripe for prolonged discomfort, especially in urban areas like Halifax, Dartmouth, and Sydney.
More rainfall, stronger storms and risk of flooding
While short stretches of dryness are still possible, widespread drought conditions are not expected. Instead, more frequent rainfall, including heavy showers and thunderstorms, will dominate much of Southwestern and Central Nova Scotia.
These storm systems could bring torrential downpours and local flooding, particularly in low-lying or flood-prone areas like the Annapolis Valley, which has seen five flood-related fatalities over the past two years. Severe storm warnings may become more frequent, as thunderstorm activity intensifies with the summer heat.
Air quality concerns from distant wildfires
Even if local precipitation limits wildfire outbreaks in Nova Scotia, wildfire smoke from Western Canada, particularly Northern Ontario and areas near Lake Superior, may reach the Maritimes. This could lead to significant air quality issues, especially during periods of westerly airflow. Residents with respiratory conditions should be particularly cautious when smoke advisories are issued.
Hurricane outlook and tropical storm risk
The 2025 Atlantic hurricane season is expected to be near or slightly above normal. Although this implies fewer storms compared to some recent years, the forecast does include a heightened probability that at least one tropical system may impact the region.
The jet stream pattern suggests a pathway for tropical moisture to reach Nova Scotia, bringing the potential for high winds, coastal flooding, and storm surges, especially later in the season.
Kings County: preparing for more heat warnings
In Kings County, historically one of the warmest regions in Nova Scotia, authorities like Regional Emergency Management Co-ordinator Dan Stovel urge vigilance. Last summer, the area saw 16 days of heat warnings, which are issued when daytime highs exceed 29 °C (84 °F) and nighttime temperatures stay above 16 °C (61 °F) for at least two consecutive days, or when the humidex surpasses 36 °C (97 °F).
Stovel emphasized the importance of monitoring Environment Canada updates and subscribing to alerts from Kings REMO, available via Facebook and email.
Nova Scotians, especially those in rural communities, should stay informed and aware as heat, storms, and air quality fluctuations are expected to shape the 2025 summer season.
