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Best time to visit · Utah, United States

Best Time to Visit Arches

April & May and September & October are the best time to visit Arches on the climate data: October scores 98/100, with highs around 68°F (20°C) and 1.2 in (31 mm) of rain. March is a good shoulder-season month. The toughest months are July and December & January, mainly because of cool days.

Arches, Utah, United States
Best months
Apr & May and Sep & Oct
Shoulder
Mar
Toughest
Jul and Dec & Jan
Warmest
Jul · 97°F
Coldest nights
Jan · 24°F
Wettest
Sep · 1.3 in
Driest
Jun · 0.5 in

Arches weather by month

Highs run from 42°F to 97°F across the year, and the yearly total is about 11.9 in (302 mm) of rain and snow.

14°23°32°41°50°59°68°77°86°95°104°42°Jan47°Feb58°Mar67°Apr78°May92°Jun97°Jul92°Aug83°Sep68°Oct54°Nov42°Dec050100
Daily low → high (°F)Monthly rain (mm, right axis)Best months
Monthly climate averages for Arches, 2001–2025
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Avg high42°F6°C47°F8°C58°F14°C67°F19°C78°F25°C92°F33°C97°F36°C92°F33°C83°F29°C68°F20°C54°F12°C42°F6°C
Avg low24°F-4°C27°F-3°C34°F1°C40°F4°C50°F10°C61°F16°C69°F21°C66°F19°C57°F14°C43°F6°C33°F0°C25°F-4°C
Rain/snow0.9 in23 mm0.9 in23 mm0.9 in24 mm0.9 in22 mm0.9 in23 mm0.5 in12 mm1.2 in31 mm1.2 in31 mm1.3 in34 mm1.2 in31 mm0.8 in21 mm1.1 in27 mm
Humidity65%59%50%44%37%26%33%37%37%45%52%64%
Cloud54%54%50%49%45%31%45%44%32%36%43%55%
Comfort556382949575597093987854

Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~1,819 m (5,968 ft) to Arches's ~1,428 m (4,685 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.

How we pick the best months

  • Temperature (40 pts): full marks for average daytime highs of 64–81°F (18–27°C); minus 3 points per °C below and 4 per °C above.
  • Rain (25 pts): full marks up to 40 mm (1.6 in) a month, falling to zero at 250 mm (9.8 in).
  • Humidity (15 pts): only counts when it is warm (mean above 18°C); minus 0.75 points per % above 70% relative humidity.
  • Cloud (20 pts): full marks at 30% cloud cover or less, falling to zero at 90%.
Best months: within 6 points of the top (or 85+). Shoulder: within 18 and at least 45. Toughest: within 6 of the lowest. Comfort only; crowds, prices, festivals and openings aren't scored.

Arches season by season

Winter Dec – Feb

The coldest season, with highs of 42–47°F (6–8°C) and lows down to 24°F (-4°C). About 2.9 in (73 mm) of rain or snow falls across these months, 24% of the year's total. December – February are cold enough for snow. It holds the toughest stretch on our comfort score (December & January), averaging 57/100.

Spring Mar – May

Temperatures climb through the season, from 58°F highs in March to 78°F by May. It's the driest season, with only about 2.7 in (69 mm) of rain, 23% of the year's total. Lows bottom out around 34°F (1°C). April & May are among the best-scoring months (season average 90/100).

Summer Jun – Aug

Peak warmth: highs of 92–97°F (33–36°C). About 2.9 in (74 mm) of rain falls across these months, 25% of the year's total. Lows bottom out around 61°F (16°C). It holds the toughest stretch on our comfort score (July), averaging 68/100.

Autumn Sep – Nov

Temperatures slide from 83°F highs in September to 54°F by November. It's the wettest season, with about 3.4 in (86 mm) of rain, 28% of the year's total. Lows bottom out around 33°F (0°C). September & October are among the best-scoring months (season average 90/100).

What our curated routes say

Plan by month

By comfort score: 7 Great, 2 Good and 3 Fair. Great months: March – June and September – November. Tap a month for its own guide.

Arches weather questions

When is the best time to visit Arches?

April & May and September & October are the best time to visit Arches on the climate data: October scores 98/100, with highs around 68°F (20°C) and 1.2 in (31 mm) of rain. March is a good shoulder-season month. The toughest months are July and December & January, mainly because of cool days.

What is the rainiest month in Arches?

September is the wettest month, averaging about 1.3 in (34 mm) of rain. June is the driest, with about 0.5 in (12 mm). The yearly total is around 11.9 in (302 mm).

What is the coldest month in Arches?

January is the coldest, with average lows of 24°F (-4°C) and highs of 42°F (6°C). The warmest is July, with average highs of 97°F (36°C).

Is Arches humid in summer?

Not very: summer (June – August) humidity averages 32%, and highs peak around 97°F (36°C), so heat matters more than mugginess.

Does it get below freezing in Arches?

On average, yes: lows fall below 32°F (0°C) in December – February, bottoming out around 24°F (-4°C) in January.

Weather nearby

Pick your Arches dates together

Poll the group on April & May and September & October dates, then plan the days, packing and costs together.

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