City in Ontario

Ottawa Počasí Předpověď

Ottawa weather: 17°C, jasno. Po hodinách forecast, 14-day outlook, UV, air quality and the best time do visit.

🌙 17°C now🕔 11:44 PM local📅 Best: září👥 1 million

Ottawa weather in prosinec

-2°
average high · low -9°C
★★☆☆☆
ranked #12 of 12 months

One of the harder months here - go in s a plan.

Average high-2°C
Average low-9°C
Mean-5°C
Déšťfall90 mm

prosinec runs 13°C cooler than the annual average in Ottawa.

Počasí map for Ottawa

Animated model layers. Pick a layer do load it.

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Animated layers by Vítry. 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.

ledúndubčečesrplisproLine: average high · Bars: rainfall
MěsícAvg highAvg lowDéšťfallRating
leden-5°-13°61 mm★★☆☆☆
únor-3°-13°49 mm★★☆☆☆
březen-6°79 mm★★☆☆☆
duben11°128 mm★★★☆☆
kvě19°87 mm★★★★
červen24°15°136 mm★★★★
červenec27°18°114 mm★★★★
srpen25°16°114 mm★★★★
září22°13°39 mm★★★★
říjen15°74 mm★★★★
listopad-1°60 mm★★★☆☆
prosinec-2°-9°90 mm★★☆☆☆

Klima type: Subarctic. Zdroj: Open-Meteo archive (ERA5).

Nejlepší doba k návštěvě Ottawa

Go in září. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: leden, únor and prosinec - expect the least comfortable mix of heat, cold or rain.

leden★★☆☆☆
únor★★☆☆☆
březen★★☆☆☆
duben★★★☆☆
kvě★★★★
červen★★★★
červenec★★★★
srpen★★★★
září★★★★
říjen★★★★
listopad★★★☆☆
prosinec★★☆☆☆

What do pack, what do skip

Pack for the next 7 days
  • neglasses, a brimmed hat and SPF 30+
  • Layers - the daily swing is 16°C, so mornings feel nothing like afternoons
Worth avoiding
  • If your dates are flexible, avoid leden, únor and prosinec - historically the least comfortable months here.

How Ottawa compares s nearby places

Annual averages, and the difference against Ottawa.

PlaceDistanceAvg tempvs hereAnnual rain
pot-Tremblant National Park144 km4°C3°C cooler1276 mm
potreal-Trudeau International Airport153 km8°C+1°C warmer1088 mm
potreal166 km8°C+1°C warmer1081 mm
Algonquin Provincial Park214 km6°C2°C cooler910 mm
Burlington222 km9°C+2°C warmer1149 mm

Zobrazit předpověď pro Ottawa podle časového období

Ottawa weather - more answers

Explore Ottawa

Every topic we hold for this place, and the same topic for the places around it.

Počasí 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 Severní Amerika.

What is the weather like in Ottawa právě teď?

It is currently 17°C (62°F) s jasno. Vlhkost is 84% and wind is 7 km/h.

When is the best time do visit Ottawa?

září offer the most comfortable conditions in Ottawa, which has a subarctic climate. leden, únor and prosinec 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 11:44 PM.

How many people live in Ottawa?

Ottawa has a population of approximately 1 million.

What is the nearest airport do Ottawa?

The closest airports are potreal-Trudeau International Airport (YUL), 153 km away and Toronto Pearson International Airport (YYZ), 367 km away.

What are the top things do do in Ottawa?

Popular options include pot-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 dataUSPOTUS Atlas dataset (cities-supported) - coordinates, hierarchy and facts.
Předpověď and observationsOpen-Meteo (ECMWF and national models).
Kvalita ovzduší and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, 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 srpen 25, 2026 at 11:44 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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