City in Ontario

Ottawa Sää Ennuste

Ottawa weather: 1°C, selkeä. Tunneittain forecast, 14-day outlook, UV, air quality and the best time ja visit.

🌙 1°C now🕔 3:14 AM local📅 Best: syyskuu👥 1 million

Lumi forecast for Ottawa

No snow is in the current forecast window for Ottawa.

6 of the next 16 nights are forecast ja reach freezing.

Historically, average lows drop below freezing in tammikuu, helmikuu, maaliskuu, marraskuu and joulukuu.

16-day forecast for Ottawa

Maks. / Min.; Sade; UV

PäiväOlosuhteetMaks. / Min.SadeTuuliUV
ti, lok 27☁️ Pilvistä7° / -1°0%11 km/h3
ke, lok 28☁️ Pilvistä7° / -1°9%6 km/h2
to, lok 29🌦️ Tihkusade18° / 4°35% · 1 mm24 km/h3
pe, lok 30☁️ Pilvistä13° / 4°23%19 km/h2
la, lok 31⛅ Puolipilvistä11° / 1°0%11 km/h3
su, mar 1☁️ Pilvistä13° / 4°34%9 km/h2
ma, mar 2🌦️ Tihkusade10° / 6°41% · 7 mm19 km/h0
ti, mar 3☁️ Pilvistä7° / -0°30%19 km/h3
ke, mar 4⛅ Puolipilvistä9° / -0°29%9 km/h3
to, mar 5🌦️ Tihkusade9° / 2°25% · 3 mm13 km/h2
pe, mar 6🌦️ Tihkusade7° / 1°19% · 3 mm19 km/h2
la, mar 7☁️ Pilvistä5° / -1°17%13 km/h3
su, mar 8☁️ Pilvistä10° / -0°9%21 km/h3
ma, mar 9☁️ Pilvistä10° / 5°10%11 km/h2
ti, mar 10☁️ Pilvistä10° / 5°33%17 km/h1
ke, mar 11☀️ Selkeää-- / --33%--—

Ilmasto in Ottawa month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

tamhelmaahuhtoukesheielosyylokmarjouLine: average high · Bars: rainfall
KuukausiAvg highAvg lowSadefallRating
tammikuu-5°-13°61 mm★★☆☆☆
helmikuu-3°-13°49 mm★★☆☆☆
maaliskuu5°-6°79 mm★★☆☆☆
huhtikuu11°1°128 mm★★★☆☆
tou19°9°87 mm★★★★☆
kesäkuu24°15°136 mm★★★★☆
heinäkuu27°18°113 mm★★★★☆
elokuu25°16°150 mm★★★★☆
syyskuu22°13°38 mm★★★★☆
lokakuu15°7°74 mm★★★★☆
marraskuu5°-1°60 mm★★★☆☆
joulukuu-2°-9°90 mm★★☆☆☆

Ilmasto type: Subarctic. Lähde: Open-Meteo archive (ERA5).

What ja pack, what ja skip

Pack for the next 7 days
  • A warm mid-layer and gloves for early mornings and evenings
Worth avoiding
  • Avoid high-elevation trails without traction devices - frozen surfaces persist in shade all day.
  • If your dates are flexible, avoid tammikuu, helmikuu and joulukuu - historically the least comfortable months here.

Katso kohteen Ottawa ennuste aikavälin mukaan

Ottawa weather - more answers

Explore Ottawa

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Frequently asked questions

Where is Ottawa?

Ottawa is a city in Ontario. Its coordinates are 45.4215, -75.6972. It lies in Pohjois-Amerikka.

What is the weather like in Ottawa nyt?

It is currently 1°C (33°F) ja selkeä. Kosteus is 75% and wind is 6 km/h.

When is the best time ja visit Ottawa?

syyskuu offer the most comfortable conditions in Ottawa, which has a subarctic climate. tammikuu, helmikuu and joulukuu 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 3:14 AM.

How many people live in Ottawa?

Ottawa has a population of approximately 1 million.

What is the nearest airport ja Ottawa?

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

What are the top things ja do in Ottawa?

Popular options include mat-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.
Ennuste and observationsOpen-Meteo (ECMWF and national models).
Ilmanlaatu and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Ilmasto 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 lokakuu 27, 2026 at 3:14 AM 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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