Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Maple Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out, as St. John’s weather can shift quickly with fog, wind, or rain. The airport code YYT covers conditions for the metro area and eastern Avalon Peninsula, including nearby communities like Mount Pearl and Petty Harbour.
What makes YYT weather different from other parts of Newfoundland?
St. John’s sits on the eastern tip of the Avalon Peninsula, exposed to the North Atlantic. This means fog is common, especially in spring and early summer. Wind speeds are often higher than inland areas like Gander or Clarenville. Winter storms can bring a mix of snow, rain, and freezing drizzle, while summer remains cool compared to mainland Canada.
How does the airport location affect the forecast?
YYT’s weather station is at St. John’s International Airport, about 10 kilometres northwest of downtown. The airport sits on higher ground, so temperatures can be a few degrees cooler than the harbour. Fog and low clouds are more frequent there, impacting flights and driving conditions. For hourly changes, review the 10-day forecast for trend details.
Frequently asked questions
Is YYT weather the same as for Bonavista or Clarenville?
No. Bonavista and Clarenville are inland or on different coasts, so they get less fog and different wind patterns. Check local forecasts for those areas separately.
Where can I find YYT weather radar and hourly updates?
For real-time radar and hourly breakdowns, use Environment Canada’s website or local radio stations like VOCM. These show precipitation movement and short-term changes.
Does Sheerr weather affect St. John’s?
Sheerr is a small community on the Avalon Peninsula. Its weather is generally similar to St. John’s, but coastal exposure can cause slightly stronger winds and more fog.