Ottawa in March
In March, Ottawa averages 2°C (36°F) during the day and -7°C (19°F) at night, with frequent rain — about 18 days of the month see precipitation (78 mm total).
Off-peakConditions are cold — pack winter layers. Expect daily rain or showers, often in heavy bursts.
March is one of the wetter and less comfortable months in Ottawa. If your dates are flexible, consider a different time of year.
How March compares to the rest of the year in Ottawa
March is in the middle of the year for warmth in Ottawa (9th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 9°C below the annual average (12°C). March runs 5°C warmer than February (-3°C) and warms a further 9°C into April (11°C).
March sunrise & sunset in Ottawa
Times shown for Ottawa local time (America/Toronto), calculated for the 15th of March. They shift by a few minutes day to day across the month.
Photography light in Ottawa — March
Golden-hour and blue-hour windows for the 15th of March, in Ottawa's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Ottawa in March
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on March's tier (Off-peak) and Ottawa's popularity.
Crowds & pricing — March in Ottawa
This is off-peak for Ottawa — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: challenging tourism weather
Sun & mosquito risk — March in Ottawa
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
🥶 Bitter cold — Ottawa in March
Gear: Snow rare but air is freezing. Insulated coat, hat, and gloves still required — wind chill is the real enemy.
Ottawa in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -4°C / 24°F | -14°C / 7°F | 73 mm | 18 | — |
| February | -3°C / 26°F | -13°C / 9°F | 77 mm | 17 | — |
| March | 2°C / 36°F | -7°C / 19°F | 78 mm | 18 | — |
| April | 11°C / 51°F | 0°C / 32°F | 117 mm | 17 | — |
| May | 19°C / 67°F | 8°C / 46°F | 73 mm | 16 | — |
| June | 24°C / 74°F | 13°C / 56°F | 119 mm | 18 | — |
| July | 26°C / 79°F | 17°C / 62°F | 100 mm | 18 | — |
| August | 25°C / 77°F | 16°C / 62°F | 108 mm | 18 | — |
| September | 21°C / 70°F | 13°C / 55°F | 78 mm | 15 | — |
| October | 14°C / 57°F | 6°C / 44°F | 115 mm | 18 | — |
| November | 5°C / 42°F | -1°C / 30°F | 74 mm | 17 | — |
| December | 0°C / 32°F | -7°C / 20°F | 83 mm | 17 | — |
Other cities with similar March weather
🌍 See the full ranked list of climate twins for Ottawa in March →
Frequently asked questions
How hot is Ottawa in March?
In March, Ottawa averages a high of 2°C (36°F) and a low of -7°C (19°F) — generally cold.
Does it rain a lot in Ottawa in March?
March is quite rainy in Ottawa, with about 18 rainy days on average.
Is March a good time to visit Ottawa?
March is cold but on the rainy side. It suits travelers who are comfortable with cold weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Ottawa in March?
Pack heavy winter layers, a coat, hat and gloves, plus a compact umbrella or rain jacket. See the full March packing list for Ottawa for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.