St. Lawrence River Clima and Average Meteo
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.
| Mese | Massima media | Minima media | Precipitazioni | Valutazione |
|---|---|---|---|---|
| gennaio | -6° | -15° | 69 mm | ★★☆☆☆ |
| febbraio | -5° | -16° | 50 mm | ★★☆☆☆ |
| marzo | 1° | -9° | 105 mm | ★★☆☆☆ |
| aprile | 9° | -1° | 124 mm | ★★☆☆☆ |
| mag | 17° | 7° | 127 mm | ★★★☆☆ |
| giugno | 23° | 12° | 176 mm | ★★★☆☆ |
| luglio | 26° | 16° | 129 mm | ★★★★☆ |
| agosto | 24° | 14° | 119 mm | ★★★★☆ |
| settembre | 21° | 11° | 72 mm | ★★★★☆ |
| ottobre | 14° | 5° | 90 mm | ★★★☆☆ |
| novembre | 4° | -3° | 90 mm | ★★☆☆☆ |
| dicembre | -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 con 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 | 1248 mm |
| Baxter State Park | 203 km | -3°C | 8°C cooler | 1377 mm |
| luntreal | 233 km | 8°C | +2°C warmer | 1065 mm |
| luntreal-Trudeau International Airport | 246 km | 8°C | +3°C warmer | 1074 mm |
| lunt-Tremblant National Park | 255 km | 4°C | 1°C cooler | 1268 mm |
Periodo migliore per visitare St. Lawrence River
Go in luglio, agosto and settembre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: gennaio, marzo and dicembre – expect the least comfortable mix of heat, cold or rain.
What this means for St. Lawrence River
Today is cooler than average for settembre. The forecast high of 17°C is 4.2°C below the 21°C typical for this month.
A 13% chance means most of the area stays dry; a passing shower is possible but short.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in giugno a agosto.
The gap between the warmest and coldest month averages 31°C.
What a pack, what a skip
- Layers – the daily swing is 16°C, so mornings feel nothing like afternoons
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid gennaio, marzo and dicembre – historically the least comfortable months here.
Riepilogo
St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet a the Atlantic.
Attualmente ci sono 5°C (41°F) in St. Lawrence River con sereno. La temperatura percepita è di 3°C. Oggi le temperature vanno da 5°C a 17°C. La probabilità di precipitazioni è del 13%. Le condizioni per le visite turistiche sono valutate 7.7/10 – buone condizioni.
Il periodo migliore per visitare St. Lawrence River is luglio, agosto and settembre. Il clima è subarctic. gennaio, marzo and dicembre tendono a essere i mesi meno confortevoli. luglio è il mese più caldo, con massime medie intorno a 26°C, mentre febbraio è il mese più freddo, con minime intorno a -16°C.
L'aeroporto principale più vicino è luntreal-Trudeau International Airport (YUL), about 246 km away. Tra i luoghi di interesse nelle vicinanze ci sono Baxter State Park, lunt-Tremblant National Park, Mount Washington and Franconia Notch State Park.
In parole semplici. Today is cooler than average for settembre. The forecast high of 17°C is 4.2°C below the 21°C typical for this month. The best window a be outside is roughly 3 PM a 6 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Lawrence River today at 9.5/10. 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
| Tipo | River |
|---|---|
| State | Quebec |
| Paese | Canada |
| Continente | America del Nord |
| Coordinate | 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 |
| Ora locale | 8:22 AM (UTC-04:00) |
| Mesi migliori | luglio, agosto and settembre |
| Clima | Subarctic |
Meteo 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 America del Nord.
What is the weather like in St. Lawrence River ora?
It is currently 5°C (41°F) con sereno. Umidità is 92% and wind is 7 km/h.
When is the best time a visit St. Lawrence River?
luglio, agosto and settembre offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. gennaio, marzo and dicembre 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 ora locale is 8:22 AM.
What is the nearest airport a St. Lawrence River?
The closest airports are luntreal-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, lunt-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. |
|---|---|
| Previsioni and observations | Open-Meteo (ECMWF and national models). |
| Qualità dell’aria 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 settembre 15, 2026 at 8:22 AM ora locale. Live blocks refresh every 15 minutes; climate averages monthly.
