Salt Lake City, United States skyline

Salt Lake City Weather in August

Typical August weather in Salt Lake City, United States, based on 2006–2025 climate averages.

In August, Salt Lake City averages a high of 31.9°C (89.4°F) and a low of 17.8°C (64°F), with about 4 rainy days (19 mm of rain) and 12.7 hours of sunshine a day.

Avg high

31.9°C (89.4°F)

Avg low

17.8°C (64°F)

Rainfall

19 mm (0.7 in)

Rainy days

4 days

Sunshine

12.7 h / day

Humidity

37%

August vs the rest of the year

Here is how every month in Salt Lake City stacks up against August — the 3rd driest month for rain.

MonthAvg highvs AugustRainRainy days
January2.1°C (35.8°F)−29.8°C (−53.6°F)55 mm10
February4.8°C (40.6°F)−27.1°C (−48.8°F)49 mm9
March10.1°C (50.2°F)−21.8°C (−39.2°F)65 mm11
April14.8°C (58.6°F)−17.1°C (−30.8°F)68 mm10
May20.6°C (69.1°F)−11.3°C (−20.3°F)50 mm9
June28.2°C (82.8°F)−3.7°C (−6.7°F)19 mm3
July33.8°C (92.8°F)+1.9°C (+3.4°F)6 mm2
August31.9°C (89.4°F)—19 mm4
September26.5°C (79.7°F)−5.4°C (−9.7°F)34 mm4
October17.3°C (63.1°F)−14.6°C (−26.3°F)46 mm7
November9.8°C (49.6°F)−22.1°C (−39.8°F)43 mm7
December3°C (37.4°F)−28.9°C (−52°F)60 mm10

What August feels like in Salt Lake City

August is late summer in Salt Lake City. Expect proper heat in the afternoon — slow down between noon and four. The day–night swing is wide (about 14.1°C (25.4°F)): nights stay mild, so mornings and evenings feel very different from midday. The heat is dry rather than muggy, so drink more than you think you need.

Rain in Salt Lake City in August

Most days stay dry; rain arrives about one day in 8. A rainy day brings about 4.7 mm (0.2 in) on average — steady rain rather than a passing shower. That is lighter than the city's yearly norm of about 6 mm per rainy day. It is among the three driest months of the year.

Daylight and sunshine in August

Mid-month, Salt Lake City gets 13 h 51 min of daylight, from sunrise near 6:37 am to sunset near 8:28 pm. Evenings are drawing in — 59 min less daylight than mid-July. About 92% of daylight hours are sunny; in short, skies are mostly clear.

How August compares to the rest of the year

In Salt Lake City's temperature order, August sits as the 2nd warmest month. Compared with July, afternoons are 1.9°C (3.4°F) cooler, with 13 mm more rain. The cooling trend carries on into September. By September, typical highs are 26.5°C (79.7°F).

Who August suits

  • Sightseeing: a good fit — comfortable enough to explore on foot all day.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Hiking: less ideal — too hot for long hikes.

Tips for visiting Salt Lake City in August

Versatile Layers

Days are noticeably warmer than nights — layers you can add or remove.

Sun Protection

Protect yourself from strong sun: hat, SPF and plenty of water.

Quick questions

How warm is Salt Lake City in August?

It feels hot: typical highs are 31.9°C (89.4°F), with lows near 17.8°C (64°F).

Does it rain a lot in Salt Lake City in August?

Not especially. There are about 4 rainy days (19 mm), mostly moderate rain.

What should I wear in Salt Lake City in August?

The numbers point to versatile layers and sun protection. Add a layer for after dark.

Is August or September better for visiting Salt Lake City?

On our 12-month climate ranking, September comes out ahead (#1 of 12 vs #3). September is cooler.

Is August a good time to visit Salt Lake City?

Great

Great — warm to hot days, mostly dry (about 4 rainy days), plenty of sunshine (12.7 h a day). Within Salt Lake City's own year, August ranks #3 of 12 — one of the 3 best months to visit.

August in other United States cities

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Salt Lake City weather by month.