Ottawa, Canada 14-Day Forecast
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The 14-day forecast for Ottawa is temporarily unavailable - please check back shortly. Meanwhile, the monthly averages below give a reliable picture of what to expect.
Ottawa 14-day outlook: the story
The best time to visit Ottawa is generally May to October, when these are the warmest and brightest weeks of the year. Daytime temperatures in that window sit near 71°F (22°C), with rain on about 12 days a month. For the same question asked the other way round, see where else is warm in May.
For typical conditions month by month, see the Ottawa climate & average temperatures guide.
Average temperatures in Ottawa by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 25° | 8° | 11 | 3.0 in | 4.9 h/day | 9.1 h | 36% | 76% |
| February | 28° | 9° | 12 | 2.9 in | 6.1 h/day | 10.3 h | 41% | 73% |
| March | 37° | 20° | 11 | 3.0 in | 7.5 h/day | 11.8 h | 36% | 70% |
| April | 51° | 32° | 13 | 4.2 in | 8.2 h/day | 13.5 h | 42% | 66% |
| May | 67° | 46° | 11 | 3.4 in | 10.4 h/day | 14.9 h | 35% | 66% |
| June | 74° | 56° | 13 | 4.5 in | 10.8 h/day | 15.6 h | 43% | 71% |
| July | 80° | 63° | 13 | 4.2 in | 12.0 h/day | 15.3 h | 41% | 72% |
| August | 77° | 62° | 13 | 4.8 in | 10.8 h/day | 14.1 h | 41% | 76% |
| September | 71° | 55° | 9 | 3.0 in | 9.5 h/day | 12.5 h | 30% | 76% |
| October | 57° | 44° | 12 | 4.1 in | 6.4 h/day | 10.8 h | 37% | 77% |
| November | 43° | 31° | 12 | 3.0 in | 5.0 h/day | 9.4 h | 40% | 76% |
| December | 32° | 20° | 12 | 3.5 in | 3.8 h/day | 8.7 h | 40% | 78% |
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