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Ontario weather in March 2026
Expect daytime maximum temperatures of 39°F in Ontario, Canada in March based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 2.4 inches of rainfall in the month, which might fall as snow.
- 39°F max day temperature
39 - 5 hours of sunshine per day
- 10 days with some rainfall
10 - 25°F min night temperature
25 - 12 hours of daylight per day
12 - No heat & humidity
0 - 2.4 inches of monthly rainfall
2.4 - 3 (Moderate) UV index
3 - 36°F sea temperature
36
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Recommended for Ontario
The March weather guide for Ontario (Toronto) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Ontario destinations
Below are average maximum temperatures at popular countries, regions and places in Ontario in March. Select a holiday destination to see more weather parameters.
All Ontario destinations
- Hamilton
- Kenora
- Kingston
- Moosonee
- Niagara Falls
- North Bay
- Ottawa
- Peawanuk
- Sault Ste. Marie
- Sudbury
- Thunder Bay
- Timmins
- Toronto
- Windsor
Metric (°C) | Imperial (°F)
More about Ontario
How cold is it in Ontario in March?
Daytime temperatures usually reach 39°F in Toronto, Ontario in March, falling to 25°F at night.
How sunny is it in Ontario in March?
There are normally 5 hours of bright sunshine each day in Toronto, Ontario in March - that's 40% of daylight hours.
How warm is the sea around Ontario in March?
The average sea temperature around Toronto, Ontario in March is 36°F.
Does it rain in Ontario in March?
There are usually 10 days with some rain in Toronto, Ontario in March and the average monthly rainfall is 2.4 inches. Rain may fall as snow in this month.
Ontario March sunrise & sunset times
Browse the sunrise and sunset times for Ontario in March 2026. Select a month to view Ontario sunrise and sunset times for the next 12 months. The Ontario sunrise and sunset times shown below are for Toronto.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Sunday, 1st March 2026 | 06:54 | 18:06 |
| Monday, 16th March 2026 | 06:28 | 18:25 |
| Tuesday, 31st March 2026 | 06:01 | 18:43 |
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