Climate guide for St. John's, Canada

St. John's in August

Weather, crowds & best time to visit

How to read the score (0–10)
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August · Canada

Best time to visit St. John's in August Weather, crowds & prices

Weather in St. John's in August

Average temperature 17°C, 88 mm of rain, about 15 days with 6+ hours of sunshine and 89% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

August score

7.4/10

Ranked #2 of 12 months

Full year for St. John's
Avg temp
17°C
Rainfall
88 mm
Humidity
89%
Days with 6h+ sun
15
Crowd Density
Peak Tourist Rush
Average Expenses
$$$ · Peak Season Rates ($$$)

August in St. John's scores 7.4/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 17°C, 88 mm of rain, and roughly 15 days with 6+ hours of sunshine this month.

St John's colourful row houses and harbour sit at the edge of the North Atlantic in Newfoundland.

August in St. John's: strong conditions, 2nd of 12

August averages 17°C (63°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 88 mm, so plan one flexible day in three; you still get about 15 days with 6+ hours of sunshine and 14.1 hours of daylight.

It scores 7.4/10 here, 2nd of 12 months, against 8/10 in the destination's best month.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in St. John's in August?
In August, St. John's averages 17°C, 88 mm of rain, and about 15 days with 6+ hours of sunshine. Its climate-comfort score is 7.4/10.
Is August a good time to visit St. John's?
August earns a 7.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in St. John's in August?
Expect about 88 mm of rain in August. Average humidity is 89% and there are about 15 days with 6+ hours of sunshine.

Curated in St. John's

Tickets & experiences

Things to do in St. John's

St. John's, Canada. Live activities and tours from GetYourGuide, matched to this destination.