Zion National Park Weather in May
May in Zion National Park averages 20°C (68°F) during the day and 4°C (39°F) at night. The excellent conditions and low rainfall make it a solid month to visit.
Rainfall in Zion National Park in May
Rain is expected on roughly 7 days, totalling around 25 mm (1 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Zion National Park in May
The excellent temperature in Zion National Park in May makes it a solid month to visit, with 20°C (68°F) during the day and 4°C (39°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Zion National Park's climate page.
Zion National Park Temperature in May
Min Temperature
4°C (39°F)
Max Temperature
20°C (68°F)
Chance of Rain
23%
Precipitation
25 mm (1 in)
Rainy days
7 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Zion National Park typically rise from around 21°C (70°F) at the start of May to approximately 26°C (79°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 10°C (50°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Zion National Park in May
Browse day-by-day weather records for Zion National Park spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Zion National Park historical weather extremes in May
Based on 27 years of weather observations in Zion National Park between 1999 and 2026, these are the recorded extremes.
- The hottest May day on record in Zion National Park reached 36°C (97°F) (May 29, 2020).
- Zion National Park experienced its chilliest May day on May 9, 2011, reaching only 7°C (45°F).
- The coldest night in May in Zion National Park was on May 1, 2011, with a minimum of -7°C (19°F).
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
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What to Wear in Zion National Park in May
For Zion National Park in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers.What To Do in Zion National Park in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Zion National Park's climate page.
See the full Zion National Park climate overview or explore weather in the United States of America.
