Mackinac Island weather in October
In October, Mackinac Island sees average daytime highs of 54°F and overnight lows near 44°F, with 3.7 in of precipitation across 13.5 wet days and about 10.7 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.
Highs ease over the month, from about 60°F in the first days to 48°F by the end. The sky is clear or mostly clear about 17% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 30 min at the start of October to 9 h 54 min by month's end. Set against the rest of the year, October is Mackinac Island's 8th-clearest and 3rd-windiest month. For the whole year in context, see Mackinac Island's year-round climate.
- Daytime high
- 54°
- 6th warmest
- Overnight low
- 44°
- 8th coldest
- Precipitation
- 3.7 in
- 13.5 wet days
- Daylight
- 10 h 42 min
- 7:03 AM – 5:44 PM
- Cloud cover
- 69%
- 8th clearest
- Wind
- 11 mph
- 3rd windiest
- Solar energy
- 2.56 kWh/m²
- Travel score
- 3.0
- out of 10
Mackinac Island is city located on Mackinac Island in Michigan.
- Founded
- 1671
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 60°F in the first days to 48°F by the end.
A typical October day in Mackinac Island reaches about 54°F in the afternoon and slips back to 44°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 44°F and 64°F. Set against its neighbours, October runs about 12°F cooler than September and about 12°F warmer than November.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 48 |
| Avg low (°F) | 50 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 47 | 46 | 46 | 46 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 40 | 39 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 60 | 50 |
| 2 | 60 | 49 |
| 3 | 60 | 49 |
| 4 | 59 | 49 |
| 5 | 59 | 48 |
| 6 | 58 | 48 |
| 7 | 58 | 48 |
| 8 | 58 | 47 |
| 9 | 57 | 47 |
| 10 | 57 | 47 |
| 11 | 56 | 46 |
| 12 | 56 | 46 |
| 13 | 55 | 46 |
| 14 | 55 | 45 |
| 15 | 54 | 45 |
| 16 | 54 | 44 |
| 17 | 53 | 44 |
| 18 | 53 | 44 |
| 19 | 52 | 43 |
| 20 | 52 | 43 |
| 21 | 51 | 43 |
| 22 | 51 | 42 |
| 23 | 51 | 42 |
| 24 | 50 | 42 |
| 25 | 50 | 41 |
| 26 | 49 | 41 |
| 27 | 49 | 41 |
| 28 | 49 | 40 |
| 29 | 48 | 40 |
| 30 | 48 | 40 |
| 31 | 48 | 39 |
How October really feels in Mackinac Island
Once humidity and wind are folded in, October averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Mackinac Island weather by month
How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 24° / 14° | 1.9 | 9.9 | 10.9 | 8.9 | 0.0 |
| Feb | 24° / 13° | 1.6 | 7.4 | 7.3 | 10.1 | 0.0 |
| Mar | 33° / 21° | 2.0 | 8.4 | 6.1 | 11.6 | 0.0 |
| Apr | 44° / 32° | 2.9 | 9.7 | 3.2 | 13.3 | 0.9 |
| May | 56° / 43° | 2.9 | 10.2 | 0.3 | 14.7 | 3.7 |
| Jun | 68° / 55° | 3.0 | 10 | 0 | 15.5 | 6.3 |
| Jul | 74° / 62° | 3.3 | 10.9 | 0 | 15.2 | 6.9 |
| Aug | 73° / 62° | 3.4 | 10 | 0 | 13.9 | 6.9 |
| Sep | 66° / 55° | 3.5 | 11.4 | 0 | 12.3 | 5.9 |
| Oct | 54° / 44° | 3.7 | 13.5 | 0.2 | 10.7 | 3.0 |
| Nov | 42° / 34° | 2.6 | 11.6 | 5.7 | 9.3 | 0.5 |
| Dec | 32° / 24° | 2.3 | 11.3 | 11.3 | 8.5 | 0.0 |
Cloud cover in October
The sky is clear or mostly clear about 17% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 44 | 44 | 43 | 44 | 43 | 43 | 42 | 43 | 41 | 41 | 39 | 39 | 38 | 36 | 35 | 35 | 33 | 33 | 31 | 31 | 30 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 28 | 28 | 28 |
| Cloudier (%) | 56 | 56 | 57 | 56 | 57 | 57 | 58 | 57 | 59 | 59 | 61 | 61 | 62 | 64 | 65 | 65 | 67 | 67 | 69 | 69 | 70 | 71 | 71 | 71 | 72 | 71 | 71 | 71 | 72 | 72 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 44 | 56 |
| 2 | 44 | 56 |
| 3 | 43 | 57 |
| 4 | 44 | 56 |
| 5 | 43 | 57 |
| 6 | 43 | 57 |
| 7 | 42 | 58 |
| 8 | 43 | 57 |
| 9 | 41 | 59 |
| 10 | 41 | 59 |
| 11 | 39 | 61 |
| 12 | 39 | 61 |
| 13 | 38 | 62 |
| 14 | 36 | 64 |
| 15 | 35 | 65 |
| 16 | 35 | 65 |
| 17 | 33 | 67 |
| 18 | 33 | 67 |
| 19 | 31 | 69 |
| 20 | 31 | 69 |
| 21 | 30 | 70 |
| 22 | 29 | 71 |
| 23 | 29 | 71 |
| 24 | 29 | 71 |
| 25 | 28 | 72 |
| 26 | 29 | 71 |
| 27 | 29 | 71 |
| 28 | 29 | 71 |
| 29 | 28 | 72 |
| 30 | 28 | 72 |
| 31 | 28 | 72 |
Chance of precipitation in October
Mackinac Island gets around 3.7 in of rain and snow over 13.5 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 44% and peaks near 47% on the wettest days, and about 0 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 45 | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 45 | 45 | 44 | 44 | 43 | 42 |
| Snow chance (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 40 | 0 |
| 2 | 40 | 0 |
| 3 | 40 | 0 |
| 4 | 40 | 0 |
| 5 | 40 | 0 |
| 6 | 40 | 0 |
| 7 | 40 | 0 |
| 8 | 41 | 0 |
| 9 | 42 | 0 |
| 10 | 42 | 0 |
| 11 | 43 | 0 |
| 12 | 43 | 0 |
| 13 | 44 | 0 |
| 14 | 44 | 0 |
| 15 | 45 | 0 |
| 16 | 45 | 0 |
| 17 | 46 | 0 |
| 18 | 46 | 0 |
| 19 | 47 | 0 |
| 20 | 47 | 0 |
| 21 | 47 | 1 |
| 22 | 47 | 1 |
| 23 | 47 | 1 |
| 24 | 46 | 1 |
| 25 | 46 | 1 |
| 26 | 45 | 2 |
| 27 | 45 | 2 |
| 28 | 44 | 3 |
| 29 | 44 | 3 |
| 30 | 43 | 4 |
| 31 | 42 | 4 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 95% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 82 | 84 | 85 | 86 | 88 | 90 | 91 | 92 | 92 | 93 | 93 | 94 | 94 | 95 | 97 | 97 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 |
| Comfortable (%) | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Humid (%) | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 82 | 13 | 3 | 2 |
| 2 | 84 | 12 | 2 | 2 |
| 3 | 85 | 11 | 2 | 2 |
| 4 | 86 | 10 | 2 | 2 |
| 5 | 88 | 9 | 2 | 1 |
| 6 | 90 | 8 | 1 | 1 |
| 7 | 91 | 7 | 1 | 1 |
| 8 | 92 | 6 | 1 | 1 |
| 9 | 92 | 6 | 1 | 1 |
| 10 | 93 | 5 | 1 | 1 |
| 11 | 93 | 5 | 1 | 1 |
| 12 | 94 | 4 | 1 | 1 |
| 13 | 94 | 4 | 1 | 1 |
| 14 | 95 | 3 | 1 | 1 |
| 15 | 97 | 3 | 0 | 0 |
| 16 | 97 | 3 | 0 | 0 |
| 17 | 98 | 2 | 0 | 0 |
| 18 | 98 | 2 | 0 | 0 |
| 19 | 98 | 2 | 0 | 0 |
| 20 | 98 | 2 | 0 | 0 |
| 21 | 98 | 2 | 0 | 0 |
| 22 | 98 | 2 | 0 | 0 |
| 23 | 98 | 2 | 0 | 0 |
| 24 | 99 | 1 | 0 | 0 |
| 25 | 99 | 1 | 0 | 0 |
| 26 | 99 | 1 | 0 | 0 |
| 27 | 99 | 1 | 0 | 0 |
| 28 | 99 | 1 | 0 | 0 |
| 29 | 99 | 1 | 0 | 0 |
| 30 | 100 | 0 | 0 | 0 |
| 31 | 100 | 0 | 0 | 0 |
Wind in October
Winds average 11 mph in October.
Across October, daily wind ranges from about 11 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 11 | light breeze |
| 2 | 11 | light breeze |
| 3 | 11 | light breeze |
| 4 | 11 | light breeze |
| 5 | 11 | light breeze |
| 6 | 11 | light breeze |
| 7 | 11 | light breeze |
| 8 | 11 | light breeze |
| 9 | 11 | light breeze |
| 10 | 11 | light breeze |
| 11 | 11 | light breeze |
| 12 | 11 | light breeze |
| 13 | 11 | light breeze |
| 14 | 11 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | light breeze |
| 27 | 12 | light breeze |
| 28 | 12 | light breeze |
| 29 | 12 | light breeze |
| 30 | 12 | light breeze |
| 31 | 12 | light breeze |
Sunrise & sunset in October
Daylight runs from about 11 h 30 min at the start of October to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 96 minutes over October. Sunrise moves from 6:43 AM to 7:25 AM, and sunset from 6:12 PM to 5:19 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11.0 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | 10.7 | 10.6 | 10.6 | 10.5 | 10.5 | 10.4 | 10.4 | 10.3 | 10.3 | 10.2 | 10.2 | 10.1 | 10.1 | 10.0 | 10.0 | 9.9 |
| Sunrise (AM) | 6:43 | 6:44 | 6:45 | 6:47 | 6:48 | 6:50 | 6:51 | 6:52 | 6:54 | 6:55 | 6:56 | 6:58 | 6:59 | 7:00 | 7:02 | 7:03 | 7:05 | 7:06 | 7:07 | 7:09 | 7:10 | 7:12 | 7:13 | 7:15 | 7:16 | 7:17 | 7:19 | 7:20 | 7:22 | 7:23 | 7:25 |
| Sunset (PM) | 6:12 | 6:10 | 6:08 | 6:06 | 6:04 | 6:02 | 6:00 | 5:59 | 5:57 | 5:55 | 5:53 | 5:51 | 5:49 | 5:47 | 5:46 | 5:44 | 5:42 | 5:40 | 5:39 | 5:37 | 5:35 | 5:33 | 5:32 | 5:30 | 5:29 | 5:27 | 5:25 | 5:24 | 5:22 | 5:21 | 5:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:43 | 6:12 |
| 2 | 11.4 | 6:44 | 6:10 |
| 3 | 11.4 | 6:45 | 6:08 |
| 4 | 11.3 | 6:47 | 6:06 |
| 5 | 11.3 | 6:48 | 6:04 |
| 6 | 11.2 | 6:50 | 6:02 |
| 7 | 11.2 | 6:51 | 6:00 |
| 8 | 11.1 | 6:52 | 5:59 |
| 9 | 11.1 | 6:54 | 5:57 |
| 10 | 11.0 | 6:55 | 5:55 |
| 11 | 10.9 | 6:56 | 5:53 |
| 12 | 10.9 | 6:58 | 5:51 |
| 13 | 10.8 | 6:59 | 5:49 |
| 14 | 10.8 | 7:00 | 5:47 |
| 15 | 10.7 | 7:02 | 5:46 |
| 16 | 10.7 | 7:03 | 5:44 |
| 17 | 10.6 | 7:05 | 5:42 |
| 18 | 10.6 | 7:06 | 5:40 |
| 19 | 10.5 | 7:07 | 5:39 |
| 20 | 10.5 | 7:09 | 5:37 |
| 21 | 10.4 | 7:10 | 5:35 |
| 22 | 10.4 | 7:12 | 5:33 |
| 23 | 10.3 | 7:13 | 5:32 |
| 24 | 10.3 | 7:15 | 5:30 |
| 25 | 10.2 | 7:16 | 5:29 |
| 26 | 10.2 | 7:17 | 5:27 |
| 27 | 10.1 | 7:19 | 5:25 |
| 28 | 10.1 | 7:20 | 5:24 |
| 29 | 10.0 | 7:22 | 5:22 |
| 30 | 10.0 | 7:23 | 5:21 |
| 31 | 9.9 | 7:25 | 5:19 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 2.56 kWh/m².
For context, solar energy here swings from a low near 1.15 kWh/m² to a high of 6.61 kWh/m² in June across the year — October's 2.56 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.3 | 3.3 | 3.2 | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.3 | Moderate |
| 2 | 3.3 | Moderate |
| 3 | 3.2 | Moderate |
| 4 | 3.1 | Moderate |
| 5 | 3.1 | Moderate |
| 6 | 3.0 | Moderate |
| 7 | 3.0 | Moderate |
| 8 | 3.0 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.8 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.7 | Moderate |
| 14 | 2.6 | Moderate |
| 15 | 2.6 | Moderate |
| 16 | 2.5 | Moderate |
| 17 | 2.5 | Moderate |
| 18 | 2.4 | Moderate |
| 19 | 2.4 | Moderate |
| 20 | 2.4 | Moderate |
| 21 | 2.3 | Moderate |
| 22 | 2.3 | Moderate |
| 23 | 2.2 | Moderate |
| 24 | 2.2 | Moderate |
| 25 | 2.2 | Moderate |
| 26 | 2.1 | Moderate |
| 27 | 2.1 | Moderate |
| 28 | 2.1 | Moderate |
| 29 | 2.0 | Moderate |
| 30 | 2.0 | Moderate |
| 31 | 2.0 | Dim |
Is October a good time to visit Mackinac Island?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a weaker month for outdoor sightseeing in Mackinac Island.
What to pack for Mackinac Island in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Mackinac Island sees daytime highs around 54°F and nights near 44°F. Worth packing: a warm layer and rain gear. About 14 days see rain.
Sea temperature near Mackinac Island in October
The nearest coast averages about 53°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 66°F and coldest in February near 34°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 35 | 34 | 34 | 36 | 41 | 52 | 62 | 66 | 61 | 53 | 44 | 38 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 35 | Bracing |
| Feb | 34 | Bracing |
| Mar | 34 | Bracing |
| Apr | 36 | Bracing |
| May | 41 | Bracing |
| Jun | 52 | Bracing |
| Jul | 62 | Cool |
| Aug | 66 | Cool |
| Sep | 61 | Cool |
| Oct | 53 | Bracing |
| Nov | 44 | Bracing |
| Dec | 38 | Bracing |
UV index in Mackinac Island in October
Clear-sky midday UV in October peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mackinac Island peaks around June 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Mackinac Island?
Mackinac Island sits at 45.8°N, 84.6°W, 0 ft above sea level, in United States. The nearest listed city is Sault Ste. Marie, 47 mi away.
Topography around Mackinac Island
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Mackinac Island.
Within 2 miles, the terrain around Mackinac Island has only modest variations in elevation — a maximum elevation change of 351 ft around an average of 614 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 351 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,037 ft.
The land around Mackinac Island is covered by water (72%) and trees (24%) within 2 miles, water (75%) and trees (22%) within 10 miles, and trees (48%) and water (44%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mackinac Island (45.8492°, -84.6189°, elevation 0 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).