Salt Lake City in May

In May, Salt Lake City averages 21°C (70°F) during the day and 8°C (46°F) at night, with frequent rain — about 16 days of the month see precipitation (46 mm total).

Shoulder

Conditions are comfortable for sightseeing without being sweltering. Expect daily rain or showers, often in heavy bursts.

May offers comfortable temperatures in Salt Lake City, with some rain to plan around.

21°C
Avg high
8°C
Avg low
16
Rain days
46 mm
Rainfall

How May compares to the rest of the year in Salt Lake City

5th
warmest month of the 12
1st
wettest month of the 12
9%
of yearly rainfall falls in May
14 h 27 min
daylight on the 15th

May is in the middle of the year for warmth in Salt Lake City (5th of 12) and one of the wettest months (1st of 12). Daytime temperature runs 4°C above the annual average (17°C). May runs 6°C warmer than April (16°C) and warms a further 8°C into June (29°C).

May sunrise & sunset in Salt Lake City

🌅
Sunrise (15th)
6:10 AM
🌇
Sunset (15th)
8:37 PM
Day length
14 h 27 min

Times shown for Salt Lake City local time (America/Denver), calculated for the 15th of May. They shift by a few minutes day to day across the month.

Photography light in Salt Lake City — May

Golden-hour and blue-hour windows for the 15th of May, in Salt Lake City's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
5:10 AM – 5:50 AM
🌄 Golden hour (AM)
5:50 AM – 6:50 AM
🌇 Golden hour (PM)
7:57 PM – 8:57 PM
🌆 Blue hour (PM)
8:57 PM – 9:37 PM
Milky Way galactic core
Good
Galactic core is up but lower on the horizon; head well outside city limits for a clean view.

📅 When to book — Salt Lake City in May

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on May's tier (Shoulder) and Salt Lake City's popularity.

✈ Flights — lead time
6-10 weeks
Sweet spot for value. Major fare-sales (US: Black Friday, EU: post-Easter) hit hardest in shoulder months for shoulder travel.
🏨 Lodging — lead time
4-8 weeks
Lots of selection. Look for shoulder-season packages — many hotels add value (free breakfast, spa credit) to fill rooms.

Crowds & pricing — May in Salt Lake City

Shoulder

Salt Lake City is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.

Why this tier: comfortable tourism weather

Sun & mosquito risk — May in Salt Lake City

☀️ UV Index (noon, 15th)
11.8
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●○
High
Peak mosquito activity. DEET 30%+, long sleeves at dawn/dusk, sleep under nets if rural.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Salt Lake City in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 3°C / 38°F -5°C / 22°F 56 mm 14
February 6°C / 42°F -4°C / 25°F 48 mm 14
March 11°C / 52°F 0°C / 31°F 71 mm 15
April 16°C / 60°F 3°C / 37°F 72 mm 15
May 21°C / 70°F 8°C / 46°F 46 mm 16
June 29°C / 84°F 14°C / 57°F 18 mm 6
July 34°C / 93°F 20°C / 67°F 8 mm 7
August 32°C / 89°F 18°C / 64°F 20 mm 7
September 26°C / 79°F 13°C / 55°F 41 mm 8
October 18°C / 64°F 5°C / 42°F 39 mm 9
November 9°C / 49°F -1°C / 30°F 45 mm 11
December 3°C / 38°F -5°C / 22°F 62 mm 13

Other cities with similar May weather

🌍 See the full ranked list of climate twins for Salt Lake City in May →

Frequently asked questions

How hot is Salt Lake City in May?

In May, Salt Lake City averages a high of 21°C (70°F) and a low of 8°C (46°F) — generally mild and pleasant.

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

May is quite rainy in Salt Lake City, with about 16 rainy days on average.

Is May a good time to visit Salt Lake City?

May is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Salt Lake City in May?

Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full May packing list for Salt Lake City for a complete, climate-based checklist.

Open Salt Lake City on the interactive map

Check the live 10-day forecast and sunrise/sunset.