St. Lawrence River Clima and Average Tempo
Clima of St. Lawrence River: average temperatures, rainfall and seasons month by month.
Clima in St. Lawrence River month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mês | Máxima média | Mínima média | Precipitação | Avaliação |
|---|---|---|---|---|
| janeiro | -6° | -15° | 69 mm | ★★☆☆☆ |
| fevereiro | -5° | -16° | 50 mm | ★★☆☆☆ |
| março | 1° | -9° | 105 mm | ★★☆☆☆ |
| abril | 9° | -1° | 124 mm | ★★☆☆☆ |
| mai | 17° | 7° | 127 mm | ★★★☆☆ |
| junho | 23° | 12° | 176 mm | ★★★☆☆ |
| julho | 26° | 16° | 129 mm | ★★★★☆ |
| agosto | 24° | 14° | 165 mm | ★★★☆☆ |
| setembro | 20° | 10° | 45 mm | ★★★★☆ |
| outubro | 14° | 5° | 90 mm | ★★★☆☆ |
| novembro | 4° | -3° | 90 mm | ★★☆☆☆ |
| dezembro | -3° | -12° | 97 mm | ★☆☆☆☆ |
Clima type: Subarctic. Fonte: Open-Meteo archive (ERA5).
Recent extremes in St. Lawrence River
Altoest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How St. Lawrence River compares com nearby places
Annual averages, and the difference against St. Lawrence River.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Quebec City | 0 km | 6°C | about the same | 1267 mm |
| Baxter State Park | 203 km | -3°C | 8°C cooler | 1355 mm |
| seg.treal | 233 km | 8°C | +2°C warmer | 1076 mm |
| seg.treal-Trudeau International Airport | 246 km | 8°C | +3°C warmer | 1094 mm |
| seg.t-Tremblant National Park | 255 km | 4°C | 1°C cooler | 1298 mm |
Melhor época para visitar St. Lawrence River
Go in setembro. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: janeiro, março and dezembro – expect the least comfortable mix of heat, cold or rain.
What this means for St. Lawrence River
Today is slightly cooler than average for outubro. The forecast high of 11°C is 3.3°C below the 14°C typical for this month.
Chuva is very unlikely today – plans do not need a backup.
Overnight lows near -3°C mean ice is possible on bridges before dawn.
Northern Hemisphere, so peak summer falls in junho a agosto.
The gap between the warmest and coldest month averages 31°C.
What a pack, what a skip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots com grip for ice
- A packable rain shell – 2 of the next 7 days carry a real chance of rain
- Avoid high-elevation trails without traction devices – frozen surfaces persist in shade all day.
- If your dates are flexible, avoid janeiro, março and dezembro – historically the least comfortable months here.
Resumo
St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet a the Atlantic.
Neste momento, a temperatura é de 3°C (37°F) in St. Lawrence River com céu limpo. A sensação térmica é de -1°C. Hoje as temperaturas variam de -3°C a 11°C. A probabilidade de precipitação é de 0%. As condições para passeios turísticos têm pontuação de 7.6/10 – boas condições.
A melhor época para visitar St. Lawrence River is setembro. O clima é subarctic. janeiro, março and dezembro costumam ser os meses menos confortáveis. julho é o mês mais quente, com máximas médias próximas de 26°C, enquanto fevereiro é o mês mais frio, com mínimas próximas de -16°C.
O principal aeroporto mais próximo é seg.treal-Trudeau International Airport (YUL), about 246 km away. Entre os destaques próximos estão Baxter State Park, seg.t-Tremblant National Park, Mount Washington and Franconia Notch State Park.
Em termos simples. Today is slightly cooler than average for outubro. The forecast high of 11°C is 3.3°C below the 14°C typical for this month. The best window a be outside is roughly 2 PM a 5 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Lawrence River today at 10/10. Overnight lows near -3°C mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about St. Lawrence River
| Tipo | River |
|---|---|
| State | Quebec |
| País | Canadá |
| Continente | América do Norte |
| Coordenadas | 46°48′50″N 71°12′28.8″W (46.8139, -71.208) |
| Length | 1.197 km |
| Known for | the Great Lakes outlet a the Atlantic |
| Hora local | 3:04 AM (UTC-04:00) |
| Melhores meses | setembro |
| Clima | Subarctic |
Tempo map for St. Lawrence River
Animated model layers. Pick a layer a load it.
Animated layers by Ventoy. 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.
Clima 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 América do Norte.
What is the weather like in St. Lawrence River agora?
It is currently 3°C (37°F) com céu limpo. Humidade is 80% and wind is 8 km/h.
When is the best time a visit St. Lawrence River?
setembro offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. janeiro, março and dezembro 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 hora local is 3:04 AM.
What is the nearest airport a St. Lawrence River?
The closest airports are seg.treal-Trudeau International Airport (YUL), 246 km away and Boston Logan International Airport (BOS), 495 km away.
What are the top things a do in St. Lawrence River?
Popular options include Baxter State Park, seg.t-Tremblant National Park, Mount Washington, Franconia Notch State Park and Acadia National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) – coordinates, hierarchy and facts. |
|---|---|
| Previsão and observations | Open-Meteo (ECMWF and national models). |
| Qualidade do ar and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima 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 outubro 25, 2026 at 3:04 AM hora local. Live blocks refresh every 15 minutes; climate averages monthly.
