Sault Ste. Marie in Summer
In summer (June, July and August), Sault Ste. Marie sees average daytime highs around 22°C and overnight lows near 13°C, with 277 mm of rain over about 32 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 18°C in early June to 21°C by late August. The sky is clear or mostly clear about 35% of the time across summer, and the air most often feels dry.
Summer is Sault Ste. Marie's best season of the year to visit on our travel score. For the whole year in context, see Sault Ste. Marie's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 277 mm
- 32 wet days
- Avg wind
- 11 km/h
- Travel score
- 6.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sault Ste. Marie in Summer
Over the season highs climb from about 18°C in early June to 21°C by late August.
A typical summer day in Sault Ste. Marie reaches about 22°C and drops to 13°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Sault Ste. Marie
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sault Ste. Marie weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -6° / -14° | 46 | 10.2 | 12.2 | 8.8 | 0.0 |
| Feb | -5° / -13° | 35 | 7.5 | 8.1 | 10 | 0.0 |
| Mar | 1° / -8° | 46 | 8.3 | 6.8 | 11.6 | 0.0 |
| Apr | 8° / -1° | 67 | 10.2 | 4 | 13.3 | 1.2 |
| May | 15° / 6° | 72 | 10 | 0.3 | 14.8 | 4.4 |
| Jun | 20° / 11° | 81 | 9.8 | 0 | 15.5 | 6.3 |
| Jul | 23° / 15° | 101 | 11.5 | 0 | 15.2 | 6.7 |
| Aug | 22° / 14° | 95 | 10.9 | 0 | 14 | 6.6 |
| Sep | 18° / 10° | 108 | 12.1 | 0 | 12.4 | 5.4 |
| Oct | 11° / 4° | 101 | 13.7 | 0.5 | 10.7 | 2.4 |
| Nov | 4° / -2° | 67 | 11.2 | 6.6 | 9.2 | 0.1 |
| Dec | -2° / -9° | 56 | 11 | 11 | 8.4 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 35% of the time across summer.
Chance of precipitation in Summer
Sault Ste. Marie gets around 277 mm of rain over 32 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 11 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 18 min in early June to 13 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Is summer a good time to visit Sault Ste. Marie?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Sault Ste. Marie for sightseeing.
What to pack for Sault Ste. Marie in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sault Ste. Marie sees daytime highs around 22°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 32 days see rain.
Sea temperature near Sault Ste. Marie in Summer
The nearest coast averages about 16°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in August at about 19°C and coldest in February near 1°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 1 | 1 | 1 | 2 | 5 | 11 | 17 | 19 | 16 | 11 | 7 | 4 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 1 | Bracing |
| Feb | 1 | Bracing |
| Mar | 1 | Bracing |
| Apr | 2 | Bracing |
| May | 5 | Bracing |
| Jun | 11 | Bracing |
| Jul | 17 | Cool |
| Aug | 19 | Cool |
| Sep | 16 | Cool |
| Oct | 11 | Bracing |
| Nov | 7 | Bracing |
| Dec | 4 | Bracing |
UV index in Sault Ste. Marie in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sault Ste. Marie peaks around June 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 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 | 7 | 7 | 5 | 3 | 1 | 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 | 7 | Very high |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Sault Ste. Marie?
Sault Ste. Marie sits at 46.5°N, 84.3°W, 186 m above sea level, in Canada. The nearest listed city is Sault Ste. Marie, 3.0 km away.
Topography around Sault Ste. Marie
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sault Ste. Marie.
Within 3 km, the terrain around Sault Ste. Marie has only modest variations in elevation — a maximum elevation change of 82 m around an average of 198 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 263 m; within 80 km, significant variations in elevation — a maximum elevation change of 491 m.
The land around Sault Ste. Marie is covered by artificial surfaces (45%) and trees (24%) within 3 km, trees (65%) within 16 km, and trees (65%) and water (30%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- 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 Sault Ste. Marie (46.5168°, -84.3333°, elevation 186 m), 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.