Canada
Jasper in August: weather & travel advice
This month's data profile
Rain shapes the decision
Jasper in August is climatically mixed. The average daily high is around 16 °C. With about 15 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
54/100 · #1
Warmth
#2
Dryness
#9
Sun
#4
Published best categories: City break, Active
Jasper · AugustPhoto: Joli Rumi · CC BY-SA 4.0Climate facts
- Average high
- 16 °C
- Average low
- 5 °C
- Rainy days (est.)
- 15 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 74 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| July | 17 | 5 | 18 | 97 | 6.6 | 73 | 0.2 | 52 |
| August (selected) | 16 | 5 | 15 | 75 | 5.7 | 74 | 0.2 | 54 |
| September | 12 | 1 | 13 | 53 | 4.0 | 76 | 0.2 | 43 |
How do the previous and next months compare?
Baseline: August (54/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| July | -2 | +0.5 °C | +0.6 °C | +2.8 | +21.7 mm | +0.9 h | -1.1 % | ±0 m/s |
| September | -11 | -4.6 °C | -4.1 °C | -2.5 | -21.7 mm | -1.7 h | +2.4 % | ±0 m/s |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Jasper in August?
The average daily high is around 16 °C, with an average daily low of about 5 °C.
Does it rain a lot in Jasper in August?
The curated estimate is about 15 rainy days per month, not a directly measured long-term average. Total precipitation averages around 75 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Jasper?
No month in Jasper reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.