River in Quebec

St. Lawrence River Klima and Average Počasí

Klima of St. Lawrence River: average temperatures, rainfall and seasons month by month.

🌙 15°C now🕔 8:56 PM local📅 Best: červenec and září

Klima in St. Lawrence River 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-6°-15°69 mm★★☆☆☆
únor-5°-16°50 mm★★☆☆☆
březen-9°105 mm★★☆☆☆
duben-1°124 mm★★☆☆☆
kvě17°127 mm★★★☆☆
červen23°12°176 mm★★★☆☆
červenec26°16°130 mm★★★★
srpen24°14°134 mm★★★★
září21°11°72 mm★★★★
říjen14°90 mm★★★☆☆
listopad-3°90 mm★★☆☆☆
prosinec-3°-12°97 mm☆☆☆☆

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

Recent extremes in St. Lawrence River

Vysokéest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.

Hottest day33°Csrp 12, 2025
Coldest night-30°Cled 25, 2026
Wettest day72 mmsrp 9, 2024

How St. Lawrence River compares s nearby places

Annual averages, and the difference against St. Lawrence River.

PlaceDistanceAvg tempvs hereAnnual rain
Quebec City0 km6°Cabout the same1264 mm
Baxter State Park203 km-3°C8°C cooler1398 mm
potreal233 km8°C+2°C warmer1081 mm
potreal-Trudeau International Airport246 km8°C+3°C warmer1088 mm
pot-Tremblant National Park255 km4°C1°C cooler1276 mm

Nejlepší doba k návštěvě St. Lawrence River

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

Hardest months: leden, březen 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 this means for St. Lawrence River

Compared s normal

Today is about average for srpen. The forecast high of 23°C is in line s the 24°C typical for this month.

Déšť chance explained

A 55% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.

Cestování and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in červen do srpen.

Worth knowing

The gap between the warmest and coldest month averages 31°C.

What do pack, what do skip

Pack for the next 7 days
  • Lightweight, light-coloured clothing and a refillable water bottle
  • neglasses, a brimmed hat and SPF 30+
  • Layers - the daily swing is 19°C, so mornings feel nothing like afternoons
  • A packable rain shell - 3 of the next 7 days carry a real chance of rain
Worth avoiding
  • If your dates are flexible, avoid leden, březen and prosinec - historically the least comfortable months here.

Shrnutí

St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet do the Atlantic.

Právě teď je 15°C (59°F) in St. Lawrence River s jasno. Pocitová teplota je 15°C. Dnes se teploty pohybují od 14°C do 23°C. Pravděpodobnost srážek je 55%. Sightseeing conditions score 8.4/10 - dobré podmínky.

Nejlepší doba k návštěvě St. Lawrence River is červenec and září. Podnebí je subarctic. leden, březen and prosinec tend do be the least comfortable months. červenec is the warmest month s average highs near 26°C, while únor is the coldest s lows near -16°C.

The closest major airport is potreal-Trudeau International Airport (YUL), about 246 km away. Nearby highlights include Baxter State Park, pot-Tremblant National Park, Mount Washington and Franconia Notch State Park.

Jednoduše řečeno. Today is about average for srpen. The forecast high of 23°C is in line s the 24°C typical for this month. The best window do be outside is roughly 5 PM do 8 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in St. Lawrence River today at 8.6/10. 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.

Quick facts about St. Lawrence River

TypRiver
StateQuebec
ZeměKanada
KontinentSeverní Amerika
Souřadnice46°48′50″N 71°12′28.8″W (46.8139, -71.208)
Length1.197 km
Known forthe Great Lakes outlet do the Atlantic
Místní čas8:56 PM (UTC-04:00)
Best monthsčervenec and září
KlimaSubarctic

Počasí map for St. Lawrence River

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.

Explore St. Lawrence River

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

Klima for related places

Frequently asked questions

Where is St. Lawrence River?

St. Lawrence River is a river in Quebec. Its coordinates are 46.8139, -71.208. It lies in Severní Amerika.

What is the weather like in St. Lawrence River právě teď?

It is currently 15°C (59°F) s jasno. Vlhkost is 90% and wind is 7 km/h.

When is the best time do visit St. Lawrence River?

červenec and září offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. leden, březen and prosinec are usually the hardest months for outdoor plans.

What time zone is St. Lawrence River in?

St. Lawrence River observes America/Toronto (UTC-04:00). The local time is 8:56 PM.

What is the nearest airport do St. Lawrence River?

The closest airports are potreal-Trudeau International Airport (YUL), 246 km away and Boston Logan International Airport (BOS), 495 km away.

What are the top things do do in St. Lawrence River?

Popular options include Baxter State Park, pot-Tremblant National Park, Mount Washington, Franconia Notch State Park and Acadia National Park.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (rivers) - 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 24, 2026 at 8:56 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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