Ottawa Weather in May
May Climate Overview
May is one of Ottawa's most beautiful months. Over one million tulips bloom at Commissioners Park and Dow's Lake during the Canadian Tulip Festival. Comfortable temperatures and long days make it ideal for outdoor exploration.
Source: Environment Canada Climate Normals 1991–2020 (Ottawa City station)
What to Expect
- Tulips, cherry blossoms, and green trees throughout the city
- Comfortable temperatures with cool evenings
- Very popular time to visit — hotel rates rise during Tulip Festival
- Long days perfect for outdoor activities
Things to Do in May
- Canadian Tulip Festival (May 8–18, 2026): over 1 million tulips at Commissioners Park
- Cycling on NCC pathways (Rideau River, Ottawa River, Gatineau Park)
- Hiking in Gatineau Park (Pink Lake, King Mountain, Lusk Cave)
- Paddling on Rideau River (canoe, kayak rentals at Mooney's Bay)
- Ottawa Farmers' Market opens (Brewer Park, Parkdale)
What to Wear
Weather Tips for Visitors
- !Tulip Festival timing: peak bloom depends on spring temperatures; check tulipfestival.ca
- !Victoria Day weekend (late May): book restaurants and parking in advance
- !Evenings cool quickly — always bring a layer
Seasonal Highlights
- Canadian Tulip Festival — world's largest tulip festival
- Victoria Day long weekend with fireworks displays
- Sparks Street pedestrian mall opens for the season
May in Ottawa — FAQ
What is the weather like in Ottawa in May?
May in Ottawa has an average high of 19.4°C and low of 8°C. May is one of Ottawa's most beautiful months. Over one million tulips bloom at Commissioners Park and Dow's Lake during the Canadian Tulip Festival. Comfortable temperatures and long days make it ideal for outdoor exploration.
What should I wear in Ottawa in May?
For May in Ottawa (19.4°C avg high), pack: Light to medium jacket for evenings, T-shirts and light layers for daytime, Rain jacket (May showers are common), Comfortable walking shoes, Sunscreen (UV levels rising significantly). Tulip Festival timing: peak bloom depends on spring temperatures; check tulipfestival.ca
Is May a good time to visit Ottawa?
May is mild in Ottawa with 217 hours of sunshine. Top activities include: Canadian Tulip Festival (May 8–18, 2026): over 1 million tulips at Commissioners Park; Cycling on NCC pathways (Rideau River, Ottawa River, Gatineau Park); Hiking in Gatineau Park (Pink Lake, King Mountain, Lusk Cave).
Does it snow in Ottawa in May?
No, Ottawa does not typically receive snow in May. Monthly precipitation averages 80 mm, falling as rain.
What events happen in Ottawa in May?
Key events in May: Canadian Tulip Festival — world's largest tulip festival. Victoria Day long weekend with fireworks displays. Sparks Street pedestrian mall opens for the season. Canadian Tulip Festival (May 8–18).
