Innisfil in Summer
In summer (June, July and August), Innisfil sees average daytime highs around 24°C and overnight lows near 14°C, with 233 mm of rain over about 31 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 21°C in early June to 24°C by late August. The sky is clear or mostly clear about 32% of the time across summer, and the air most often feels dry.
Summer is Innisfil's best season of the year to visit on our travel score. For the whole year in context, see Innisfil's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 233 mm
- 31 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.8
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Innisfil in Summer
Over the season highs climb from about 21°C in early June to 24°C by late August.
A typical summer day in Innisfil reaches about 24°C and drops to 14°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Innisfil
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.
Innisfil 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 | -3° / -11° | 56 | 10.4 | 10.2 | 9.1 | 0.0 |
| Feb | -2° / -11° | 46 | 8.4 | 7.6 | 10.2 | 0.0 |
| Mar | 4° / -5° | 54 | 10.1 | 6.1 | 11.6 | 0.2 |
| Apr | 11° / 1° | 74 | 10.8 | 2.7 | 13.2 | 2.8 |
| May | 18° / 7° | 80 | 10.7 | 0 | 14.5 | 5.7 |
| Jun | 23° / 13° | 83 | 10.9 | 0 | 15.3 | 6.7 |
| Jul | 26° / 15° | 75 | 10.6 | 0 | 15 | 6.7 |
| Aug | 25° / 14° | 76 | 9.8 | 0 | 13.8 | 7.0 |
| Sep | 21° / 10° | 71 | 9.7 | 0 | 12.3 | 6.5 |
| Oct | 13° / 5° | 73 | 11.2 | 0.4 | 10.8 | 3.6 |
| Nov | 6° / -1° | 67 | 10.7 | 4.1 | 9.4 | 0.6 |
| Dec | 0° / -7° | 57 | 10.9 | 9 | 8.7 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 32% of the time across summer.
Chance of precipitation in Summer
Innisfil gets around 233 mm of rain over 31 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 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 06 min in early June to 13 h 06 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 5.9 kWh/m².
Is summer a good time to visit Innisfil?
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 Innisfil for sightseeing.
What to pack for Innisfil in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Innisfil sees daytime highs around 24°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 31 days see rain.
Sea temperature near Innisfil in Summer
The nearest coast averages about 17°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 52 km away) is warmest in August at about 21°C and coldest in March near 1°C.
It's comfortable for a long swim from Aug 9 to Aug 24 — about 0.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 3 | 2 | 1 | 2 | 5 | 11 | 19 | 21 | 19 | 13 | 9 | 6 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 3 | Bracing |
| Feb | 2 | Bracing |
| Mar | 1 | Bracing |
| Apr | 2 | Bracing |
| May | 5 | Bracing |
| Jun | 11 | Bracing |
| Jul | 19 | Cool |
| Aug | 21 | Refreshing |
| Sep | 19 | Cool |
| Oct | 13 | Bracing |
| Nov | 9 | Bracing |
| Dec | 6 | Bracing |
UV index in Innisfil 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 Innisfil peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 | 6 | 8 | 8 | 6 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Innisfil in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Innisfil is worst in May — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 14 | 16 | 17 | 19 | 18 | 18 | 16 | 14 | 10 | 9 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 16 | Moderate |
| Apr | 17 | Moderate |
| May | 19 | Moderate |
| Jun | 18 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 14 | Moderate |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is Innisfil?
Innisfil sits at 44.3°N, 79.6°W, 266 m above sea level, in Canada. The nearest listed city is Barrie, 11 km away.
Topography around Innisfil
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Innisfil.
Within 3 km, the terrain around Innisfil has only modest variations in elevation — a maximum elevation change of 77 m around an average of 273 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 155 m; within 80 km, significant variations in elevation — a maximum elevation change of 471 m.
The land around Innisfil is covered by trees (43%) and cropland (38%) within 3 km, trees (32%) and cropland (32%) within 16 km, and trees (41%) and cropland (24%) 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 Innisfil (44.3001°, -79.6496°, elevation 266 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.