Mackinac Island weather in July
In July, Mackinac Island sees average daytime highs of 74°F and overnight lows near 62°F, with 3.3 in of rain across 10.9 wet days and about 15.2 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 74°F through the month. The sky is clear or mostly clear about 41% of the time in July, and the air most often feels humid.
Daylight stretches from about 15 h 30 min at the start of July to 14 h 42 min by month's end. Set against the rest of the year, July is Mackinac Island's 1st-clearest and 10th-windiest month. For the whole year in context, see Mackinac Island's year-round climate.
- Daytime high
- 74°
- 1st warmest
- Overnight low
- 62°
- 12th coldest
- Rainfall
- 3.3 in
- 10.9 wet days
- Daylight
- 15 h 12 min
- 5:08 AM – 8:20 PM
- Cloud cover
- 50%
- 1st clearest
- Wind
- 9 mph
- 10th windiest
- Solar energy
- 6.49 kWh/m²
- Travel score
- 6.9
- 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 July
Day-to-day highs hold fairly steady near 74°F through the month.
A typical July day in Mackinac Island reaches about 74°F in the afternoon and slips back to 62°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 67°F and 81°F. Set against its neighbours, July runs about 6°F warmer than June and on par with August.
| 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) | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Avg low (°F) | 60 | 61 | 61 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 73 | 60 |
| 2 | 73 | 61 |
| 3 | 73 | 61 |
| 4 | 73 | 61 |
| 5 | 73 | 61 |
| 6 | 73 | 61 |
| 7 | 74 | 62 |
| 8 | 74 | 62 |
| 9 | 74 | 62 |
| 10 | 74 | 62 |
| 11 | 74 | 62 |
| 12 | 74 | 62 |
| 13 | 74 | 62 |
| 14 | 74 | 63 |
| 15 | 74 | 63 |
| 16 | 75 | 63 |
| 17 | 75 | 63 |
| 18 | 75 | 63 |
| 19 | 75 | 63 |
| 20 | 75 | 63 |
| 21 | 75 | 63 |
| 22 | 75 | 63 |
| 23 | 75 | 63 |
| 24 | 75 | 63 |
| 25 | 75 | 63 |
| 26 | 75 | 63 |
| 27 | 75 | 63 |
| 28 | 75 | 63 |
| 29 | 75 | 63 |
| 30 | 75 | 63 |
| 31 | 75 | 63 |
How July really feels in Mackinac Island
Once humidity and wind are folded in, July 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.
July 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 July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-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 July
The sky is clear or mostly clear about 41% of the time in July, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 40%.
| 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 (%) | 58 | 58 | 59 | 58 | 58 | 59 | 59 | 60 | 59 | 60 | 60 | 60 | 60 | 60 | 59 | 60 | 60 | 60 | 59 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 61 | 61 |
| Cloudier (%) | 42 | 42 | 41 | 42 | 42 | 41 | 41 | 40 | 41 | 40 | 40 | 40 | 40 | 40 | 41 | 40 | 40 | 40 | 41 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 58 | 42 |
| 2 | 58 | 42 |
| 3 | 59 | 41 |
| 4 | 58 | 42 |
| 5 | 58 | 42 |
| 6 | 59 | 41 |
| 7 | 59 | 41 |
| 8 | 60 | 40 |
| 9 | 59 | 41 |
| 10 | 60 | 40 |
| 11 | 60 | 40 |
| 12 | 60 | 40 |
| 13 | 60 | 40 |
| 14 | 60 | 40 |
| 15 | 59 | 41 |
| 16 | 60 | 40 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 59 | 41 |
| 20 | 59 | 41 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 60 | 40 |
| 24 | 60 | 40 |
| 25 | 60 | 40 |
| 26 | 60 | 40 |
| 27 | 60 | 40 |
| 28 | 60 | 40 |
| 29 | 60 | 40 |
| 30 | 61 | 39 |
| 31 | 61 | 39 |
Chance of precipitation in July
Mackinac Island gets around 3.3 in of rain over 10.9 wet days in July. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.
| 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 (%) | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 |
| Rain chance (%) | |
|---|---|
| 1 | 35 |
| 2 | 34 |
| 3 | 34 |
| 4 | 34 |
| 5 | 34 |
| 6 | 34 |
| 7 | 34 |
| 8 | 34 |
| 9 | 34 |
| 10 | 34 |
| 11 | 35 |
| 12 | 35 |
| 13 | 35 |
| 14 | 35 |
| 15 | 35 |
| 16 | 35 |
| 17 | 36 |
| 18 | 36 |
| 19 | 36 |
| 20 | 36 |
| 21 | 36 |
| 22 | 37 |
| 23 | 37 |
| 24 | 37 |
| 25 | 37 |
| 26 | 37 |
| 27 | 37 |
| 28 | 37 |
| 29 | 37 |
| 30 | 36 |
| 31 | 36 |
Humidity in July
Most of July feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the humid band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.
| 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 (%) | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 |
| Comfortable (%) | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
| Humid (%) | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 |
| Muggy (%) | 11 | 12 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Oppressive (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 31 | 30 | 26 | 11 | 1 |
| 2 | 31 | 30 | 26 | 12 | 1 |
| 3 | 30 | 30 | 26 | 12 | 1 |
| 4 | 30 | 30 | 26 | 12 | 2 |
| 5 | 30 | 29 | 27 | 13 | 2 |
| 6 | 29 | 29 | 27 | 13 | 2 |
| 7 | 29 | 29 | 27 | 14 | 2 |
| 8 | 28 | 28 | 27 | 14 | 2 |
| 9 | 27 | 28 | 28 | 15 | 2 |
| 10 | 26 | 28 | 28 | 16 | 2 |
| 11 | 25 | 28 | 29 | 17 | 2 |
| 12 | 24 | 27 | 29 | 17 | 2 |
| 13 | 23 | 27 | 30 | 18 | 3 |
| 14 | 22 | 27 | 30 | 18 | 3 |
| 15 | 22 | 27 | 31 | 18 | 3 |
| 16 | 21 | 26 | 31 | 18 | 3 |
| 17 | 20 | 26 | 32 | 19 | 3 |
| 18 | 20 | 26 | 33 | 19 | 3 |
| 19 | 19 | 26 | 33 | 19 | 3 |
| 20 | 18 | 26 | 34 | 19 | 2 |
| 21 | 18 | 26 | 34 | 19 | 2 |
| 22 | 17 | 27 | 35 | 19 | 2 |
| 23 | 17 | 27 | 35 | 19 | 2 |
| 24 | 16 | 27 | 35 | 19 | 2 |
| 25 | 16 | 27 | 35 | 19 | 2 |
| 26 | 16 | 28 | 35 | 19 | 2 |
| 27 | 15 | 28 | 35 | 19 | 2 |
| 28 | 15 | 28 | 35 | 19 | 2 |
| 29 | 15 | 28 | 35 | 19 | 2 |
| 30 | 16 | 28 | 34 | 19 | 2 |
| 31 | 16 | 28 | 34 | 19 | 2 |
Wind in July
Winds average 9 mph in July.
Across July, daily wind ranges from about 9 mph on the calmest days to 9 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 9 | light breeze |
| 2 | 9 | light breeze |
| 3 | 9 | light breeze |
| 4 | 9 | light breeze |
| 5 | 9 | light breeze |
| 6 | 9 | light breeze |
| 7 | 9 | light breeze |
| 8 | 9 | light breeze |
| 9 | 9 | light breeze |
| 10 | 9 | light breeze |
| 11 | 9 | light breeze |
| 12 | 9 | light breeze |
| 13 | 9 | light breeze |
| 14 | 9 | light breeze |
| 15 | 9 | light breeze |
| 16 | 9 | light breeze |
| 17 | 9 | light breeze |
| 18 | 9 | light breeze |
| 19 | 9 | light breeze |
| 20 | 9 | light breeze |
| 21 | 9 | light breeze |
| 22 | 9 | light breeze |
| 23 | 9 | light breeze |
| 24 | 9 | light breeze |
| 25 | 9 | light breeze |
| 26 | 9 | light breeze |
| 27 | 9 | light breeze |
| 28 | 9 | light breeze |
| 29 | 9 | light breeze |
| 30 | 9 | light breeze |
| 31 | 9 | light breeze |
Sunrise & sunset in July
Daylight runs from about 15 h 30 min at the start of July to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over July. Sunrise moves from 4:57 AM to 5:24 AM, and sunset from 8:27 PM to 8:05 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) | 15.5 | 15.5 | 15.5 | 15.5 | 15.4 | 15.4 | 15.4 | 15.4 | 15.4 | 15.3 | 15.3 | 15.3 | 15.3 | 15.3 | 15.2 | 15.2 | 15.2 | 15.1 | 15.1 | 15.1 | 15.1 | 15.0 | 15.0 | 14.9 | 14.9 | 14.9 | 14.8 | 14.8 | 14.8 | 14.7 | 14.7 |
| Sunrise (AM) | 4:57 | 4:58 | 4:58 | 4:59 | 4:59 | 5:00 | 5:01 | 5:01 | 5:02 | 5:03 | 5:04 | 5:05 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:21 | 5:22 | 5:23 | 5:24 |
| Sunset (PM) | 8:27 | 8:26 | 8:26 | 8:26 | 8:26 | 8:25 | 8:25 | 8:25 | 8:24 | 8:24 | 8:23 | 8:23 | 8:22 | 8:21 | 8:21 | 8:20 | 8:19 | 8:19 | 8:18 | 8:17 | 8:16 | 8:15 | 8:14 | 8:13 | 8:12 | 8:11 | 8:10 | 8:09 | 8:08 | 8:06 | 8:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 15.5 | 4:57 | 8:27 |
| 2 | 15.5 | 4:58 | 8:26 |
| 3 | 15.5 | 4:58 | 8:26 |
| 4 | 15.5 | 4:59 | 8:26 |
| 5 | 15.4 | 4:59 | 8:26 |
| 6 | 15.4 | 5:00 | 8:25 |
| 7 | 15.4 | 5:01 | 8:25 |
| 8 | 15.4 | 5:01 | 8:25 |
| 9 | 15.4 | 5:02 | 8:24 |
| 10 | 15.3 | 5:03 | 8:24 |
| 11 | 15.3 | 5:04 | 8:23 |
| 12 | 15.3 | 5:05 | 8:23 |
| 13 | 15.3 | 5:05 | 8:22 |
| 14 | 15.3 | 5:06 | 8:21 |
| 15 | 15.2 | 5:07 | 8:21 |
| 16 | 15.2 | 5:08 | 8:20 |
| 17 | 15.2 | 5:09 | 8:19 |
| 18 | 15.1 | 5:10 | 8:19 |
| 19 | 15.1 | 5:11 | 8:18 |
| 20 | 15.1 | 5:12 | 8:17 |
| 21 | 15.1 | 5:13 | 8:16 |
| 22 | 15.0 | 5:14 | 8:15 |
| 23 | 15.0 | 5:15 | 8:14 |
| 24 | 14.9 | 5:16 | 8:13 |
| 25 | 14.9 | 5:17 | 8:12 |
| 26 | 14.9 | 5:18 | 8:11 |
| 27 | 14.8 | 5:19 | 8:10 |
| 28 | 14.8 | 5:21 | 8:09 |
| 29 | 14.8 | 5:22 | 8:08 |
| 30 | 14.7 | 5:23 | 8:06 |
| 31 | 14.7 | 5:24 | 8:05 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 6.49 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 — July's 6.49 kWh/m² sits near the top of that range.
| 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) | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.7 | Intense |
| 2 | 6.7 | Intense |
| 3 | 6.7 | Intense |
| 4 | 6.7 | Intense |
| 5 | 6.7 | Intense |
| 6 | 6.7 | Intense |
| 7 | 6.7 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.6 | Intense |
| 13 | 6.6 | Intense |
| 14 | 6.5 | Intense |
| 15 | 6.5 | Intense |
| 16 | 6.5 | Intense |
| 17 | 6.5 | Intense |
| 18 | 6.5 | Intense |
| 19 | 6.4 | Intense |
| 20 | 6.4 | Intense |
| 21 | 6.4 | Intense |
| 22 | 6.4 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.3 | Intense |
| 25 | 6.3 | Intense |
| 26 | 6.3 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Is July a good time to visit Mackinac Island?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is a reasonable time to visit Mackinac Island for sightseeing.
What to pack for Mackinac Island in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Mackinac Island sees daytime highs around 74°F and nights near 62°F. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.
Sea temperature near Mackinac Island in July
The nearest coast averages about 62°F in July — 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 July
Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. 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).