Jasper in Summer
In summer (June, July and August), Jasper sees average daytime highs around 16°C and overnight lows near 3°C, with 258 mm of precipitation over about 44 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 12°C in early June to 15°C by late August. The sky is clear or mostly clear about 16% of the time across summer, and the air most often feels dry.
Summer is Jasper's best season of the year to visit on our travel score. For the whole year in context, see Jasper's year-round climate.
- Avg daytime high
- 16°C
- warmest season of the year
- Avg overnight low
- 3°C
- Precipitation
- 258 mm
- 44 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Jasper in Summer
Over the season highs climb from about 12°C in early June to 15°C by late August.
A typical summer day in Jasper reaches about 16°C and drops to 3°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Jasper
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 18 that feel at or below 0°C.
The story in summer is cold — wind chill drags the overnight "feels like" below the raw low.
Jasper 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 | -10° / -16° | 35 | 9 | 10.9 | 7.9 | 0.0 |
| Feb | -7° / -15° | 24 | 6.6 | 8.7 | 9.5 | 0.0 |
| Mar | -2° / -11° | 40 | 10.2 | 12.1 | 11.5 | 0.0 |
| Apr | 3° / -7° | 49 | 11 | 10.9 | 13.6 | 0.0 |
| May | 9° / -3° | 64 | 11.6 | 6.6 | 15.5 | 1.5 |
| Jun | 13° / 1° | 95 | 16 | 1.5 | 16.6 | 3.2 |
| Jul | 17° / 4° | 94 | 15.3 | 0.5 | 16.1 | 5.0 |
| Aug | 17° / 4° | 70 | 12.4 | 0.5 | 14.5 | 5.1 |
| Sep | 12° / -1° | 60 | 11 | 3.7 | 12.4 | 2.9 |
| Oct | 3° / -8° | 53 | 10.5 | 9.5 | 10.3 | 0.2 |
| Nov | -6° / -14° | 47 | 10.3 | 11.6 | 8.4 | 0.0 |
| Dec | -11° / -17° | 30 | 8.1 | 9.9 | 7.4 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 16% of the time across summer.
Chance of precipitation in Summer
Jasper gets around 258 mm of rain and snow over 44 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 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 16 h 18 min in early June to 13 h 30 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 Jasper?
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 Jasper for sightseeing.
What to pack for Jasper in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Jasper sees daytime highs around 16°C and nights near 3°C. Pack rain gear and sun protection. Worth having: a warm layer. About 44 days see rain.
UV index in Jasper 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 Jasper peaks around July 15 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 17 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 | 1 | 3 | 4 | 6 | 6 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Jasper 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 Jasper is worst in July — around 29 µg/m³ PM2.5 (moderate), about 8.7× the cleanest month (November, 3 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) | 21 | 8 | 5 | 6 | 13 | 15 | 29 | 20 | 15 | 4 | 3 | 8 |
| Level | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 21 | Moderate |
| Feb | 8 | Good |
| Mar | 5 | Good |
| Apr | 6 | Good |
| May | 13 | Moderate |
| Jun | 15 | Moderate |
| Jul | 29 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 4 | Good |
| Nov | 3 | Good |
| Dec | 8 | Good |
Where is Jasper?
Jasper sits at 52.9°N, 118.1°W, 0 m above sea level, in Canada. The nearest listed city is Banff, 256 km away.
Topography around Jasper
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jasper.
Within 3 km, the terrain around Jasper has significant variations in elevation — a maximum elevation change of 298 m around an average of 1,106 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,026 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,142 m.
The land around Jasper is covered by trees (68%) within 3 km, trees (69%) within 16 km, and trees (59%) and bare terrain (23%) 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 Jasper (52.8795°, -118.0804°, elevation 0 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.