Best Time至Visit Ottawa
最佳旅游时间 Ottawa: 九月. 月份-by-month temperature, rainfall and crowd guidance.
最佳旅游时间 Ottawa
Go in 九月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 一月, 二月 and 十二月 - expect the least comfortable mix of heat, cold or rain.
气候 in Ottawa month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 一月 | -5° | -13° | 61 mm | ★★☆☆☆ |
| 二月 | -3° | -13° | 49 mm | ★★☆☆☆ |
| 三月 | 5° | -6° | 79 mm | ★★☆☆☆ |
| 四月 | 11° | 1° | 128 mm | ★★★☆☆ |
| 五月 | 19° | 9° | 87 mm | ★★★★☆ |
| 六月 | 24° | 15° | 136 mm | ★★★★☆ |
| 七月 | 27° | 18° | 113 mm | ★★★★☆ |
| 八月 | 25° | 16° | 104 mm | ★★★★☆ |
| 九月 | 22° | 13° | 39 mm | ★★★★☆ |
| 十月 | 15° | 7° | 74 mm | ★★★★☆ |
| 十一月 | 5° | -1° | 60 mm | ★★★☆☆ |
| 十二月 | -2° | -9° | 90 mm | ★★☆☆☆ |
气候 type: Subarctic. 来源： Open-Meteo archive (ERA5).
How Ottawa compares，天气为nearby places
Annual averages, and the difference against Ottawa.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| 周一t-Tremblant National Park | 144 km | 4°C | 3°C cooler | 1268 mm |
| 周一treal-Trudeau International Airport | 153 km | 8°C | +1°C warmer | 1074 mm |
| 周一treal | 166 km | 8°C | +1°C warmer | 1065 mm |
| Algonquin Provincial Park | 214 km | 6°C | 2°C cooler | 893 mm |
| Burlington | 222 km | 9°C | +2°C warmer | 1139 mm |
What至pack, what至skip
- Layers - the daily swing is 17°C, so mornings feel nothing like afternoons
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid 一月, 二月 and 十二月 - historically the least comfortable months here.
摘要
Ottawa is a city in Ontario. Ottawa is known for Parliament Hill and the Rideau Canal. 人口约为1 million.
目前气温为5°C (41°F) in Ottawa，天气为大部晴朗. 体感温度为3°C. 今天气温在5°C至18°C. 降水概率为27%. Sightseeing conditions score 7.4/10 - 良好.
最佳旅游时间是Ottawa is 九月. 气候为subarctic. 一月, 二月 and 十二月 tend至be the least comfortable months. 七月 is the warmest month，天气为average highs near 27°C, while 一月 is the coldest，天气为lows near -13°C.
The closest major airport is 周一treal-Trudeau International Airport (YUL), about 153 km away. Nearby highlights include 周一t-Tremblant National Park, Algonquin Provincial Park, Franconia Notch State Park and Watkins Glen State Park.
简单来说。 Today is cooler than average for 九月. The forecast high of 18°C is 4°C below the 22°C typical for this month. The best window至be outside is roughly 1 PM至4 PM, when temperature, rain chance and wind line up best. running is the strongest bet in Ottawa today at 9.2/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
天气：Ottawa现在
Open-Meteo Updated 6:27 AM, 九月 15 local time.
Weekend outlook
☁️ 16° / 6°
阴天 · 37% rain · wind 10 km/h
☁️ 21° / 9°
阴天 · 54% rain · wind 14 km/h
可做的活动 in Ottawa
景点, parks and landmarks in and around Ottawa.
Quick facts about Ottawa
Explore Ottawa
Every topic we hold for this place, and the same topic for the places around it.
Best Time至Visit for related places
Frequently asked questions
Where is Ottawa?
Ottawa is a city in Ontario. Its coordinates are 45.4215, -75.6972. It lies in 北美洲.
What is the weather like in Ottawa现在?
It is currently 5°C (41°F)，天气为大部晴朗. 湿度 is 89% and wind is 4 km/h.
When is the best time至visit Ottawa?
九月 offer the most comfortable conditions in Ottawa, which has a subarctic climate. 一月, 二月 and 十二月 are usually the hardest months for outdoor plans.
What time zone is Ottawa in?
Ottawa observes America/Toronto (UTC-04:00). The local time is 6:27 AM.
How many people live in Ottawa?
Ottawa has a population of approximately 1 million.
What is the nearest airport至Ottawa?
The closest airports are 周一treal-Trudeau International Airport (YUL), 153 km away and Toronto Pearson International Airport (YYZ), 367 km away.
What are the top things至do in Ottawa?
Popular options include 周一t-Tremblant National Park, Algonquin Provincial Park, Franconia Notch State Park, Watkins Glen State Park, CN Tower and Letchworth State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-supported) - coordinates, hierarchy and facts. |
|---|---|
| 预报 and observations | Open-Meteo (ECMWF and national models). |
| 空气质量 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 气候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated 九月 15, 2026 at 6:27 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
