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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Grosse Isle

Grosse Isle, month by month

The best months for Grosse Isle: May, Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb, Mar, Apr, Nov, Dec.

Month by month

  1. JanuaryAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).-6 °C / -15 °C, 12 rain daysCrowds: Low
  2. FebruaryAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).-5 °C / -14 °C, 10 rain daysCrowds: Low
  3. MarchAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).1 °C / -8 °C, 11 rain daysCrowds: Low
  4. AprilAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).8 °C / -1 °C, 11 rain daysCrowds: Low
  5. MayGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.17 °C / 6 °C, 12 rain daysCrowds: Medium
  6. JuneGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.22 °C / 11 °C, 12 rain daysCrowds: Medium · 1 festival or holiday
  7. JulyGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.25 °C / 14 °C, 13 rain daysCrowds: High · 1 festival or holiday
  8. AugustGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.24 °C / 13 °C, 12 rain daysCrowds: High
  9. SeptemberGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.18 °C / 8 °C, 12 rain daysCrowds: Medium
  10. OctoberGreatInside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.11 °C / 3 °C, 13 rain daysCrowds: Medium
  11. NovemberAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).4 °C / -2 °C, 13 rain daysCrowds: Low
  12. DecemberAvoidListed as a month to avoid: Nov–Apr (boats stop; access is charter aircraft only).-3 °C / -10 °C, 13 rain daysCrowds: Medium · 1 festival or holiday