Temperature
Cool by day, brisk at night.
60°Ftypical Aug high
Katmai National Park
United States · North America
Katmai National Park is most comfortable during summer. Summers are cool and winters are cold. Precipitation is frequent in most months. Humidity is usually low.
Best time to go
12 mo · Typical year
Temperature range
17°F to 61°F
Rain
16 days/mo
Sunshine
6.5 h/day
Humidity feel
Generally dry
When to visit
Month-by-month fit
Precipitation
Recurring showers across the month.
52%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Cloudier spells limit sunshine.
7.2 hAug sunshine
Heat & humidity by month
It rarely feels hot, though humidity can be noticeable during rainy periods.
LowAug heat feel
Easy airHumid air
Hourly comfort pattern
In August, afternoons feel about 55° and nights feel near 50°.
FrigidFreezingVery coldColdCoolNight shading
More detailIncludes sky, daypart comfort, and wind
Cloud cover
Mostly cloudy skies.
12%Aug clear sky
ClearCloud cover
Typical August day
August late afternoons are around 58°F, and early evening stays near 57°F.
Avg temp Typical range
Morning53°F
Rain34%
Cloud90%
Humid airLow
Sun intensityMinimal
Midday56°F
Rain35%
Cloud86%
Humid airLow
Sun intensityModerate
Late afternoon58°F
Rain35%
Cloud85%
Humid airLow
Sun intensityModerate
evening57°F
Rain32%
Cloud82%
Humid airLow
Sun intensityLow
Best windowWind pattern
Calm winds are typical in August.
4 mphAug Calm
Typical wind speed (mph)
Similar
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Want a side-by-side climate view? Compare Katmai National Park with Anchorage.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology