St. Ignace IslandSt. Ignace Island at a Glance
When to Go
Best Time to Visit St. Ignace Island
Visit in summer with thorough preparation and local route planning.
Summer (Jun-Sep)
June-September · 10-20°C
The only practical season for small-boat access and camping; avoid shoulder seasons due to cold and storms.
Weather & Climate near St. Ignace Island
Climate
St. Ignace Island's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -21°C to 22°C. Moderate rainfall (826 mm/year).
Air Quality:
AQI 18
Good
Temperature & Rainfall
Temperature Range
22°
Warmest Month
-21°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -21° - -10° | -24° | 57 mm | - | - | 5.1 m/s | - | - |
| February | - | -19° - -8° | -21° | 34 mm | - | - | 4.8 m/s | - | - |
| March | - | -13° - -1° | -13° | 44 mm | - | - | 4.8 m/s | - | - |
| April | - | -4° - 6° | -3° | 43 mm | - | - | 4.6 m/s | - | - |
| May | - | 2° - 13° | 5° | 69 mm | - | - | 4.2 m/s | - | - |
| June | - | 7° - 19° | 13° | 86 mm | - | - | 3.8 m/s | - | - |
| July | - | 11° - 22° | 16° | 85 mm | - | - | 3.5 m/s | - | - |
| August | - | 11° - 21° | 16° | 90 mm | - | - | 3.8 m/s | - | - |
| September | - | 7° - 15° | 11° | 99 mm | - | - | 4.5 m/s | - | - |
| October | - | 1° - 9° | 1° | 86 mm | - | - | 5.1 m/s | - | - |
| November | - | -7° - 1° | -9° | 71 mm | - | - | 5.4 m/s | - | - |
| December | - | -16° - -7° | -19° | 62 mm | - | - | 5.3 m/s | - | - |
Getting There & Around
How to Get to St. Ignace Island
Access is by private boat or charter across Lake Superior; approaches depend on seasonal weather and require careful planning and charts.
Tips for Visiting St. Ignace Island
- Large and sparsely visited - plan supplies and navigation carefully for any landing or extended trip.
- Use detailed nautical charts and local advice; the island is remote and weather on Lake Superior can change quickly.