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Climate almanac

St. John's

Newfoundland and Labrador, Canada · 47.56°, -52.71°

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What is the weather like in St. John's in September?

In September, St. John's is typically 62°F (16°C) during the day and 52°F (11°C) at night. The month brings about 3.7 in (94 mm) of precipitation in total.

  • Average high62°F (16°C)
  • Average low52°F (11°C)
  • Precipitation3.7 in (94 mm)
  • Clear or mostly clear days6
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)