Zion in August: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 52/100 · #10 of 12 months
August is peak season — expect the year's biggest crowds at Zion National Park: crowds run 77% of the June peak (462,033 average visits). Weather: highs average 98°F and lows 69°F, with 1.6″ of precipitation and 13.6 hours of daylight. Computed from NPS and NOAA data.
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Bring for Zion in August
- A light layer you can shed by midday (long sleeve or windbreaker)See it on AmazonWhy: a 29°F swing between the average low of 69°F and high of 98°F.
- Sun hat, SPF 50+ and 3L+ water capacitySee it on AmazonWhy: highs average 98°F.
- Electrolyte tablets (heat-illness prevention)See it on AmazonWhy: at highs of 98°F, water alone is not enough — dehydration is the real risk.
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Crowds in August
Zion averages 462,033 recreation visits in August — 77% of what June, the peak month, draws. Plan lodging and entries with that in mind — book early and start days at dawn.
Weather & daylight
Expect intense heat (highs average 98°F), and nights stay mild (lows average 69°F). It is typically dry (1.6″ of precipitation). Mid-month daylight runs 13.6 hours.
NOAA 1991–2020 monthly normals, station ZION NP, UT US (1 mi from park coordinates, 4,038 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of August.
What to pack for Zion in August
Computed from the month's weather normals above — not a generic list.
- A light layer you can shed by midday (long sleeve or windbreaker) — a 29°F swing between the average low of 69°F and high of 98°F
- Sun hat, SPF 50+ and 3L+ water capacity — highs average 98°F
- Electrolyte tablets (heat-illness prevention) — at highs of 98°F, water alone is not enough — dehydration is the real risk (compare other options)
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
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Looking for a better window? The computed best months for Zion are January and February.
Also at their best in August
Other parks whose computed August verdict is a best window — same NPS × NOAA formula:
- Guadalupe Mountains in August — 28% of peak crowds, highs 84°F, score 80/100
- Lassen Volcanic in August — 56% of peak crowds, highs 78°F, score 77/100
- Bryce Canyon in August — 81% of peak crowds, highs 78°F, score 68/100
- Redwood in August — 85% of peak crowds, highs 66°F, score 67/100
Common questions
Is Zion crowded in August?
Yes — August runs 77% of Zion's peak, averaging 462,033 recreation visits (NPS, 2021–2025).
What is the weather like in Zion in August?
Average highs of 98°F, lows of 69°F, 1.6″ of precipitation (NOAA 1991–2020 normals, ZION NP, UT US station).
What should I pack for Zion in August?
A light layer you can shed by midday (long sleeve or windbreaker); Sun hat, SPF 50+ and 3L+ water capacity; Electrolyte tablets (heat-illness prevention) — the full weather-computed list is on this page.
See also: the best national parks to visit in August · Last verified 2026-09-24