- Weather 15 to 22 °C, mild and pleasant
- Victoria Day is Monday, May 24, 2027
- Mother's Day weekend is the busiest May weekend
- Cherry blossoms peak early May in Niagara-on-the-Lake
- Hotel rates still below the July peak
May 2027 weather
Average high 19 °C, average low 9 °C. Eleven rain days. Generally pleasant for outdoor activities, occasional cool evenings. Bring layers and a light waterproof jacket.
What is open in May
- Hornblower boat ride, every day
- Maid of the Mist, ran all month in 2026, 2027 opening day not announced yet
- Journey Behind the Falls, year round
- Cave of the Winds, opens early May
- Whirlpool Aero Car, full season
- Fireworks, nightly at 10 PM from May 15 in the 2026 season, 2027 calendar not published yet
Top May tour with boat included.
Check availability →May events
- Victoria Day long weekend, May 22 to 24, 2027, the first big holiday weekend of the season
- Niagara Cherry Blossom Festival, early May, Niagara-on-the-Lake
- Mother's Day brunch, May 9, 2027, fallsview restaurants book out 30 days ahead
- Niagara Wine Tour Days, mid May, multi winery passport events
- Memorial Day weekend (US), May 29 to 31, 2027, busiest weekend of the month
Wine country in May
Niagara wineries reopen full tasting rooms. Vineyard lunches return. Hot air balloon flights over the wine country resume. The wine tours pair well with mild May weather.
Vineyard lunch in May, before the summer crowds.
Check availability →May hotel pricing
Hotel rates start the month at March/April levels and rise gradually. By Victoria Day weekend (May 22 to 24, 2027) prices have jumped 25 percent. Book Mother's Day and Memorial Day weekends 60 days ahead.
Best May days to visit
- Best, Tuesday to Thursday in early May, before Victoria Day
- Worst, Mother's Day weekend (May 8 and 9, 2027) and Memorial Day weekend (May 29 to 31, 2027)
- Best for a holiday atmosphere, Victoria Day, Monday, May 24, 2027
- Best for cherry blossoms, May 1 to 7 in Niagara-on-the-Lake
Verdict
Mid May (after Mother's Day, before Victoria Day) is the sweet spot. Mild weather, full attractions, lower crowds and prices. Late May with the fireworks back gives a fuller summer experience at lower prices than June.
Internal links
For broader spring see spring 2027 guide. For wine tours see 10 best wine tours.
Questions Frequentes
Yes. May has full attractions running, mild weather (15 to 22 °C), and crowds 30 percent below July peak. The boat rides run all month and Victoria Day falls on Monday, May 24, 2027.
Niagara Parks has not published the 2027 fireworks calendar yet. In 2026 the Falls Fireworks run nightly at 10 PM from May 15 through October 12.
Yes, May is inside the boat season on both sides. The 2027 opening days are not announced yet. For reference, the Maid of the Mist on the US side opened its 2026 season on Friday, April 24.
Early May rates are 30 to 40 percent below July peak. By Victoria Day weekend (May 22 to 24, 2027) prices have jumped about 25 percent. Book Mother's Day weekend and Memorial Day weekend 60 days ahead.
