Ottawa Väder Prognos
Ottawa weather: 10°C, klart. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Will it rain in Ottawa?
No - rain is unlikely in Ottawa today.
Regn is very unlikely today - plans do not need a backup.
Over the next 7 days, about 0 mm of precipitation is forecast.
The next 7 days look unusually dry - roughly 0% of a normal september week (0 mm against 9 mm).
16-day forecast for Ottawa
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| tor, sep 17 | ☁️ Mulet | 18° / 10° | 2% | 7 km/h | 5 |
| fre, sep 18 | ☁️ Mulet | 17° / 9° | 1% | 18 km/h | 5 |
| lör, sep 19 | ☁️ Mulet | 16° / 5° | 0% | 10 km/h | 5 |
| sön, sep 20 | ☁️ Mulet | 19° / 6° | 24% | 18 km/h | 5 |
| mån, sep 21 | ☁️ Mulet | 16° / 5° | 2% | 17 km/h | 4 |
| tis, sep 22 | ☁️ Mulet | 16° / 5° | 5% | 17 km/h | 5 |
| ons, sep 23 | ☁️ Mulet | 18° / 6° | 13% | 12 km/h | 5 |
| tor, sep 24 | 🌦️ Duggregn | 12° / 9° | 25% · 4 mm | 10 km/h | 1 |
| fre, sep 25 | 🌦️ Light drizzle | 12° / 8° | 10% · 1 mm | 27 km/h | 1 |
| lör, sep 26 | ☁️ Mulet | 11° / 7° | 7% | 22 km/h | 3 |
| sön, sep 27 | ☁️ Mulet | 20° / 4° | 11% | 16 km/h | 5 |
| mån, sep 28 | ☁️ Mulet | 24° / 11° | 16% | 22 km/h | 3 |
| tis, sep 29 | 🌦️ Light drizzle | 26° / 15° | 13% · 1 mm | 15 km/h | 4 |
| ons, sep 30 | 🌦️ Light drizzle | 28° / 16° | 27% · 1 mm | 15 km/h | 4 |
| tor, okt 1 | 🌦️ Duggregn | 20° / 14° | 19% · 5 mm | 10 km/h | 2 |
| fre, okt 2 | ☀️ Klart | -- / -- | 29% | -- | — |
What this means for Ottawa
Today is cooler than average for september. The forecast high of 18°C is 4.9°C below the 22°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni och augusti.
The gap between the warmest and coldest month averages 31°C.
What och pack, what och skip
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.
Se prognosen för Ottawa per tidsintervall
Ottawa weather - more answers
Explore Ottawa
Every topic we hold for this place, and the same topic for the places around it.
Väder 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 Nordamerika.
What is the weather like in Ottawa just nu?
It is currently 10°C (50°F) med klart. Luftfuktighet is 91% and wind is 5 km/h.
When is the best time och visit Ottawa?
september offer the most comfortable conditions in Ottawa, which has a subarctic climate. januari, februari and december 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 6:14 AM.
How many people live in Ottawa?
Ottawa has a population of approximately 1 million.
What is the nearest airport och Ottawa?
The closest airports are måntreal-Trudeau International Airport (YUL), 153 km away and Toronto Pearson International Airport (YYZ), 367 km away.
What are the top things och do in Ottawa?
Popular options include månt-Tremblant National Park, Algonquin Provincial Park, Franconia Notch State Park, Watkins Glen State Park, CN Tower and Letchworth State Park.
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| Place data | USPOTUS Atlas dataset (cities-supported) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat 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 september 17, 2026 at 6:14 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
