Sullivan, Ontario Weather
Sullivan, Ontario — live current conditions, hourly and 7-day forecasts, ECCC alerts, aviation weather, radar and satellite imagery, marine and fishing conditions with a solunar forecast, soil and crop conditions for Sullivan in York.
Marine forecast and fishing conditions near Sullivan.
Flight conditions near Sullivan. Data source: locating…
Soil conditions, frost risk and crop weather for Sullivan.
About Sullivan, Ontario
Sullivan is a urban community in York, Ontario, Canada. It is classified as a small locality. Sullivan is located at 43.7736°N, 79.3136°W. It observes Eastern Time (UTC−5 / −4). Postal code area: M1T.
Sullivan rests quietly upon the firm earth near the rise of Heise Hill, where the light of late afternoon catches the subtle gradients of the terrain. It lies 6.0 km north-east of Toronto, ON (from Toronto, ON: bearing 53°T), and is situated 12.1 km south-south-west of Markham. The air here holds a distinct clarity, cooling quickly as the sun descends behind the slope, casting long, deliberate shadows that sharpen the contours of the land. While the Don River flows some distance away at fourteen kilometers and the expansive greenery of Parc urbain national du Canada de la Rouge waits nineteen kilometers to the east, the immediate surroundings of Sullivan possess a singular, grounded stillness. The soil here feels dense and settled, supporting a landscape that favors open visibility and the quiet endurance of the local topography. The history of Sullivan reflects the steady transformation of the region from its early agricultural roots into a modern residential center. Local industry has evolved alongside the steady growth of York, shifting from the labor of the fields toward a service-oriented economy that defines the daily movement of its residents. The pace of life in Sullivan follows the predictable cycles of the surrounding district, where the movement of people mirrors the changing seasons. Even amidst the development that characterizes the modern era, the proximity to Heise Hill provides a constant, natural reference point for those who make their home within these borders, grounding the daily experience in a recognizable geography.
Live animated radar for Sullivan and surroundings — RainViewer.
NOAA GOES-19 GEOCOLOR — Canada / Northern U.S. sector. Auto-refreshes every 10 minutes on page reload. Frames the whole country from Newfoundland to the BC coast, plus adjacent Pacific and Atlantic storm approaches.
Source: NOAA/NESDIS GOES-19 · Public domain · Sector code can (Canada / Northern U.S.) · Auto-updates on page reload
| Location | Sullivan, York, Ontario |
| Coordinates | 43.773611°N, 79.313611°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | M1T |
| Area Code | 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), Environment and Climate Change Canada |
About This Sullivan, Ontario Weather Page
This page provides live weather conditions and forecasts for Sullivan, Ontario, including current conditions, a 24-hour hourly forecast, 7-day outlook, ECCC extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modelled estimate shown when no station is in range), precipitation radar and NOAA GOES satellite imagery. Additional sections may include marine and fishing conditions with a solunar forecast for coastal localities, and soil temperature, crop weather and live Water Survey of Canada river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Sullivan includes coordinates 43.773611°N, 79.313611°W, situated in York. Postal FSA: M1T. Telephone area code: 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905. Timezone: Eastern Time (UTC−5 / −4).
Weather data is sourced from Environment and Climate Change Canada (ECCC) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov, with a modelled estimate used where no nearby reporting station is available. River and stream data is sourced from Water Survey of Canada (WSC) via the ECCC GeoMet realtime hydrometric feed. Marine and solunar data are modelled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-19 and is public domain.