Ottawa Vejr Prognose
Ottawa weather: 14°C, overskyet. Hver time forecast, 14-day outlook, UV, air quality and the best time og visit.
Ottawa weather in august
A good month og visit Ottawa.
august runs 13°C warmer than the annual average in Ottawa.
Compare med september.
Vejr map for Ottawa
Animated model layers. Pick a layer og load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klima in Ottawa month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | -5° | -13° | 61 mm | ★★☆☆☆ |
| februar | -3° | -13° | 49 mm | ★★☆☆☆ |
| marts | 5° | -6° | 79 mm | ★★☆☆☆ |
| april | 11° | 1° | 128 mm | ★★★☆☆ |
| maj | 19° | 9° | 87 mm | ★★★★☆ |
| juni | 24° | 15° | 136 mm | ★★★★☆ |
| juli | 27° | 18° | 113 mm | ★★★★☆ |
| august | 25° | 16° | 150 mm | ★★★★☆ |
| september | 22° | 13° | 38 mm | ★★★★☆ |
| oktober | 15° | 7° | 74 mm | ★★★★☆ |
| november | 5° | -1° | 60 mm | ★★★☆☆ |
| december | -2° | -9° | 90 mm | ★★☆☆☆ |
Klima type: Subarctic. Kilde: Open-Meteo archive (ERA5).
Bedste rejsetid Ottawa
Go in september. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and december - expect the least comfortable mix of heat, cold or rain.
What og pack, what og skip
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid januar, februar and december - historically the least comfortable months here.
How Ottawa compares med nearby places
Annual averages, and the difference against Ottawa.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| mant-Tremblant National Park | 144 km | 4°C | 3°C cooler | 1298 mm |
| mantreal-Trudeau International Airport | 153 km | 8°C | +1°C warmer | 1094 mm |
| mantreal | 166 km | 8°C | +1°C warmer | 1076 mm |
| Algonquin Provincial Park | 214 km | 6°C | 2°C cooler | 894 mm |
| Burlington | 222 km | 9°C | +2°C warmer | 1157 mm |
Se prognosen for Ottawa efter tidsinterval
Ottawa weather - more answers
Explore Ottawa
Every topic we hold for this place, and the same topic for the places around it.
Vejr 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 lige nu?
It is currently 14°C (57°F) med overskyet. Luftfugtighed is 86% and wind is 3 km/h.
When is the best time og visit Ottawa?
september offer the most comfortable conditions in Ottawa, which has a subarctic climate. januar, februar 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 10:03 PM.
How many people live in Ottawa?
Ottawa has a population of approximately 1 million.
What is the nearest airport og Ottawa?
The closest airports are mantreal-Trudeau International Airport (YUL), 153 km away and Toronto Pearson International Airport (YYZ), 367 km away.
What are the top things og do in Ottawa?
Popular options include mant-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. |
|---|---|
| Prognose and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima 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 oktober 4, 2026 at 10:03 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
