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Late summer · Weather & things to do

Olympic NP in August

Olympic NP's warmest month brings highs averaging 59°F (15°C), lows of 42°F (6°C) and about 1.7 in (42 mm) of rain.

At 85/100 for comfort (2nd of 12), it's one of the best months to visit.

Olympic NP, Washington, United States
Avg high
59°F (15°C)
Avg low
42°F (6°C)
Rain
1.7 in (42 mm)
Humidity
79%
Cloud cover
48%
Daylight
~14 h 06 min
Comfort score
85/100 · Great

What August feels like

Days are mild at around 59°F (15°C): comfortable for walking all day, with a layer for the evening.

After dark, temperatures fall to about 42°F (6°C).

About 1.7 in (42 mm) of rain falls in a typical year's August.

Olympic NP: August compared with the months either side
JulyAugustSeptember
Avg high59°F15°C59°F15°C53°F12°C
Avg low42°F5°C42°F6°C39°F4°C
Rain1.2 in31 mm1.7 in42 mm3.4 in86 mm
Daylight15 h 26 min14 h 06 min12 h 20 min
Comfort858569

Plan around August

August is one of Olympic NP's best months on the climate data.

What to pack for August

What to do in Olympic NP in August

August is good outdoor weather here, so these picks lean toward the open air.

Nearby in August

NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~664 m to Olympic NP's ~1,317 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Olympic NP in August: quick answers

Is August a good time to visit Olympic NP?

Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 59°F (15°C) and 1.7 in (42 mm) of rain. August is inside the Jun – Sep window our Pacific Northwest route recommends.

How cold is Olympic NP in August?

Average highs are 59°F (15°C) and average lows 42°F (6°C), making it the warmest month by daytime highs.

Does it rain a lot in Olympic NP in August?

Not much: about 1.7 in (42 mm) of rain falls across August on average, the 2nd-driest month of the year. The annual total is about 73.9 in (1877 mm).

What should I pack for Olympic NP in August?

Bring a warm layer for evenings (nights drop to 42°F) and comfortable walking shoes (most picks involve some walking).

Routes in season in August

Planning Olympic NP in August?

Share this August plan with your group, poll everyone on dates and keep the packing list in one place.

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