Arches National Park in April is a pleasant time of year to visit. Daytime temperatures are warmer but mornings and evenings will still be cold. The park is less crowded in April which is nice, but be prepared for possible rain or snow.
Arches National Park is open 24/7. Visit the NPS site to get the updated operating hours for Arches.The visitor center is a great place to stop and obtain useful information about the park generally and what you are most interested in.
Arches National Park is recognized as one of the best places for stargazing. The slogan “Half the Park is After Dark” encourages visitors at night to simply Look up! to a sky literally filled with stars.