Oshawa Weather in May

With daytime temperatures of 17°C (63°F) and nighttime lows of 8°C (46°F), May in Oshawa brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 81 mm (3.2 in) falls on average.

Rainfall in Oshawa in May

Historically, the month has about 12 days of rain, averaging 81 mm (3.2 in) in total. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Oshawa in May

May in Oshawa brings typical temperatures with highs around 17°C (63°F) and lows of 8°C (46°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Oshawa in May

Expect sunny days throughout the month, with an estimated 227 hours of sunshine. This makes it a pleasant time to visit Oshawa.

If you prefer enjoying temperate temperatures and rain-free days, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.