- Save up to £500 on holidays (1 May 2026-31 Oct 2027)
- 10% discount up to £500. Min spend £500. T&Cs apply
- Travel between 1st May 2026 & 31st Oct 2027 (inclusive)
Best time to visit Ontario
The best times to visit Ontario (Toronto) are in June, July and August based on our default weather conditions. Update your weather preferences to see which months best match.
Ontario by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ontario
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Top Ontario destinations
Below are the temperatures expected today at popular countries, regions and places in Ontario. Select a destination to compare today's forecast with average weather conditions.
All Ontario destinations
- Hamilton
- Kenora
- Kingston
- Moosonee
- Niagara Falls
- North Bay
- Ottawa
- Peawanuk
- Sault Ste. Marie
- Sudbury
- Thunder Bay
- Timmins
- Toronto
- Windsor
When is the best time to visit Ontario?
Max Day Temperature (°C)
- Jan
-2 - Feb-2
- Mar
4 - Apr
11 - May
18 - Jun
24 - Jul
27 - Aug25
- Sep21
- Oct
14 - Nov7
- Dec
0
Best time to visit
The weather guide for Ontario (Toronto) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Ontario
Explore our complete guide to Ontario with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Ontario.
- Essential information
- Ready to book?
- Top travel deals
- Travel advice
- Travel health
- Travel features
- FAQs
Ontario essential information
Below is a beginner's guide to Ontario with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.
| Ontario - quick facts | |
|---|---|
| Flight time✝ | 8 hours |
| Time difference | UK -5 to -6 hours |
| Language(s) | English, French |
| Currency | Canadian Dollar |
| Electricity | A + B plug (120V) |
| Driving side | Right |
| Visa✝ | Yes |
✝ = Typical flight time from the UK and visa requirements for UK travellers.
Travelling to Ontario?
Discover where to book holidays, flights, hotels and more from popular travel providers for your trip to Ontario in 2026/2027.
Holidays to Ontario
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TUI Find and book ATOL protected holidays to Ontario and destinations worldwide with low deposits and free child places available. |
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Saga Holidays |
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Mercury Holidays |
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Virgin Holidays |
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lastminute.com |
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Broadway Travel With 75 years+ history, this UK independent travel agency offers great-value holidays, hotels and cruises to Canada and beyond. |
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Canadian Affair Award-winning Canada travel experts offering tailor-made flights, hotels, trains, cruises and more to and around Canada. |
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Expedia Compare and book holidays, flights, hotels, car hire and more on this trusted website covering global destinations. |
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First Choice Part of the TUI Group, this well-known UK travel brand offers package holidays to Ontario and beyond. |
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Travelbag |
Tours to Ontario
Flights to Ontario
Hotels in Ontario
Accommodation in Ontario
Things to do in Ontario
Buses & trains in Ontario
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Money transfers to Ontario
eSIMs for Ontario
Ontario travel deals
Check out the latest deals, discount codes and special offers on holidays, flights, hotels and more for Ontario in 2026/2027. Pay low deposits and save with last minute holidays, early bird offers and free kids places where available.
- Save up to £300 on last minute skiing holidays
- Book late skiing holiday deals to Europe & North America
- Filter deals by destination, board basis, rating, travel dates
- Save on holidays & flights worldwide in the BA sale
- Book trips to Europe, USA, Caribbean & beyond
- Including New York, Los Angeles, Florida, Barbados & Dubai
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- Save on hotel stays in North America with Accor
- ALL-Accor Live Limitless members get extra 10% off
- Travel before 31st May 2026 (inclusive)
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- Save on return flights to Canada from £441
- Book online in the Air Canada New Year sale
- Travel dates vary by destination. Black out periods apply
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- Save on holidays to popular destinations worldwide
- Book holidays to Caribbean, USA, Indian Ocean & more
- Pay just £75 deposits per person to secure booking
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- Book flights from £370 per person in Virgin Atlantic sale
- Fly to destinations across the USA, Caribbean & beyond
- Travel before 30th November 2026 (inclusive)
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- Save up to 50% on 2026 holidays & tours with Travelbag
- Book selected stays in popular destinations around the world
- Travel before 31st December 2026 (inclusive)
Expires at 23:59 on Saturday 31st Jan 2026 · View all Travelbag offers
- Save up to £500 on holidays (1 May 2026-31 Oct 2027)
- 10% discount up to £500. Min spend £500. T&Cs apply
- Travel between 1st May 2026 & 31st Oct 2027 (inclusive)
Expires at 23:59 on Saturday 31st Jan 2026 · View all First Choice offers
- Save up to 70% on tours & trips worldwide
- Check out latest deals & discounts for tours in 2026/2027
- Filter deals by destination, month, price, trip type & more
- Discover top Air Canada offers on flights to Canada
- Browse lowest fares available or search by date
- Book flights to Toronto, Vancouver, Calgary, Montreal & more
Ontario travel advice
Check the latest travel advice and guidance on visiting Ontario from official government sources (in english) from around the world including entry requirements and travel restrictions.
- UK traveller advice for Ontario - UK FCDO
- Irish traveller advice for Ontario - Department of Foreign Affairs, Ireland
- Safe travel advisories for Ontario - Ministry of Foreign Affairs, New Zealand
- Smarter traveller advice for Ontario - Department of Foreign Affairs, Australia
Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Ontario.
Note: UK FCDO - UK Foreign, Commonwealth & Development Office
Ontario travel health
Find out more about staying safe when travelling to Ontario with the latest guidance on required vaccinations and recommended medication to take with you.
- Vaccines & medicines for Ontario - CDC
- Health & vaccinations for Ontario - TravelHealthPro, NaTHNac
- How to stay safe & healthy in Ontario - Fit for Travel, Public Health Scotland
Check out the general travel tips for staying safe and healthy in Ontario, risks of preventable diseases and what to pack.
Note: CDC - Centers for Disease Control and Prevention
Ontario travel features
Do you want to learn more about Ontario? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Ontario.
Ontario FAQs
Read our frequently asked questions about travelling to Ontario including the current entry restrictions, driving side, electrical plugs used and much more.
Which is the hottest month in Ontario?
The hottest time of year in Toronto, Ontario is normally July. Expect maximum daytime temperatures to reach 27°C with low heat and humidity.
Which month has the most rain in Ontario?
In terms of rainfall, August is usually the wettest month in Toronto, Ontario with 83mm on average. There are normally 10 days in August with some rain.
When is it sunniest in Ontario?
The sunniest time of year in Toronto, Ontario is normally July with bright sunshine on average for 60% of daylight hours; that's 9 hours of sunshine per day.
When is the sea warmest in Ontario?
The sea is usually at its warmest in Toronto, Ontario in August when the water temperature reaches 21°C.
What is the flight time to Ontario from the UK?
The flight time to Ontario from the UK is typically 8 hours.
What is the time difference between Ontario and the UK?
The time difference between Ontario and the UK is UK time-5 to UK time-6 hours.
What is the main language spoken in Ontario?
What is the currency in Ontario?
The currency in Ontario is the Canadian Dollar (CAD).
Send money to Ontario with XE Money Transfers*.
Which plugs are used in Ontario?
Ontario uses electrical plug type A + B (120 Volts).
Which side of the road do they drive on in Ontario?
They drive on the right side of the road in Ontario.
Find out more about driving in Canada with International Drivers Association*.
Do you need a visa for Ontario?
Yes, UK passport holders do need a visa to enter Ontario.
Check Canada visa requirements for all passport holders with VisaHQ*.
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