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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
For Sussex, New Brunswick, the live forecast above shows current conditions and today’s high; Environment Canada data indicates Sussex typically sees its warmest afternoons in July, with average highs near 25°C, and January lows averaging around -15°C.
What makes Sussex’s weather different from nearby areas?
Sussex sits in the Kennebecasis River valley, which can trap cooler air overnight and create sharper temperature swings than communities closer to the Bay of Fundy. The valley’s microclimate means morning fog develops more frequently in spring and autumn, often burning off by mid-morning. This pattern is distinct from coastal Saint John, where marine influence moderates both daytime highs and overnight lows year-round.
How reliable are 14-day and hourly forecasts for Sussex?
Long-range forecasts (14 day weather Sussex NB) provide a general trend for temperature and precipitation but lose accuracy beyond seven days due to the region’s shifting Atlantic weather systems. Hourly forecasts from the weather network Sussex NB hourly or AccuWeather Sussex NB are most reliable within 48 hours, when local wind shifts and valley fog can be predicted with higher confidence. For current conditions, the live forecast above pulls directly from Environment Canada’s Sussex station.
Does Sussex get more snow than other parts of New Brunswick?
Yes, Sussex averages about 220 cm of snow annually, which is higher than Fredericton’s 180 cm but lower than the 300 cm typical in the northern highlands near Bathurst.
Where can I find Environment Canada Sussex NB warnings?
Environment Canada Sussex NB issues weather alerts through its public forecast page and the live forecast above. For severe thunderstorm or winter storm watches, check the Canada Scope Weather Warning hub.
Is weather Sussex NB hourly data available for outdoor planning?
Yes. The weather network Sussex NB hourly and AccuWeather Sussex NB both offer 48-hour breakdowns. Use the live forecast above for the most current Environment Canada readings, which update every hour.