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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scene Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
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For the latest conditions in the capital, check the live forecast above. Ottawa’s weather varies from deep‑freeze January highs near –6°C to humid July afternoons reaching 26°C, making spring and early autumn the most comfortable seasons for travellers.
What are the best months to visit Ottawa?
May through October offer the most reliable outdoor conditions. July and August are warm and often humid, ideal for cycling along the Rideau Canal or strolling through ByWard Market. For winter enthusiasts, February brings Winterlude and crisp, sunny days – just pack a heavy parka and insulated boots. Snowbirds often book March breaks in late March, when daytime highs climb above freezing but snow still lingers. Peak tourist season is July and August, so book early if you prefer warm evenings and fewer crowds.
What should I pack for Ottawa weather?
Layers are the key year‑round. In winter, a wind‑resistant coat, thermal base layers, a hat, gloves and waterproof boots handle temperatures that can dip below –20°C. Spring and autumn require a mid‑weight jacket and a sweater; rain is common, so a waterproof shell or umbrella is wise. Summer calls for light clothing, sunscreen and a water bottle – humidity can push humidex values into the mid‑30s. For a weather in ottawa 10 days outlook, always check the live forecast above before packing.
When does Ottawa typically get its first snowfall?
Snow usually arrives in late November, though flurries can appear in mid‑October. The heaviest snowfalls occur from December through February, with January averaging about 50 cm. For ottawa weather 14 day trends, refer to the live forecast above.
How often do Ottawa winters produce extreme cold warnings?
Environment and Climate Change Canada issues extreme cold warnings when wind chill values drop below –30°C, which happens several times each winter. These warnings are common in January and early February. Check our Weather Warning page for alerts.
Can I watch ctv news ottawa live stream free for weather updates?
CTV News Ottawa offers a free live stream on its website and app. For on‑the‑go updates, the stream includes breaking weather alerts and the local forecast. For ctv news ottawa today coverage, the live stream is a reliable option.
Sources
For a broader look at conditions across the country, visit our Canada weather hub. Compare Ottawa’s climate with Toronto Weather if you are planning a longer Ontario trip. For weather in ottawa tomorrow or the ottawa weather 14 day outlook, the live forecast above remains your quickest reference. Stay informed on ottawa breaking news today that affects travel and outdoor plans.