FIRE RESTRICTIONS ARE IN EFFECT until further notice: Wood, charcoal, and propane fires are prohibited. Gas/ propane stoves are allowed for cooking meals only. Smoking (including e-cigarettes) is prohibited in the park and on trails. Smoking is allowed inside an enclosed vehicle/camper only.
The water will be off in the park on Thursday, June 5 from 5 a.m. to 3 p.m. Portable toilets will be available in the campground restroom across from site 74, at the Cholla Day Use area, and at the park's Visitor Center.
Construction Advisory: Construction will be taking place in several areas of the park April-October 2025. Be prepared for construction-related traffic and increased noise levels. Any scheduled utility outages will be posted ahead of time. Siphon Draw Trail will be detoured at times to avoid construction areas—signs will direct the detours. Construction hours 5 a.m. - 7 p.m.
Due to safety concerns, walk-in entry and hiker drop-off/pick-up is not permitted.
The dump station and showers are closed to anyone not camping at the park.
Annual Weather
Lost Dutchman State Park is located in the Sonoran Desert of the southwestern United States at an elevation of 2,000 feet. The climate is arid with an average annual rainfall of about 14 inches. During the winter, daytime temperatures usually reach 60° F.
The weather is predominantly sunny with seasonal winter rains coming from the Pacific Ocean. Summer months are extremely hot with daytime temperatures soaring above 100°. Hot weather in July and August can produce thunder, lightning, blowing dust, and occasionally heavy rain. This “monsoon” season normally ends by the latter half of September. The park's busy season is October to April when temperatures are moderate.
Below is a listing of average daily temperatures and monthly precipitation:
| Month | High | Low | Precipitation |
|---|---|---|---|
| January | 65° F | 40° F | 1.51" |
| February | 70° | 42° | 1.40" |
| March | 75° | 45° | 1.96" |
| April | 83° | 51° | 0.53" |
| May | 92° | 58° | 0.26" |
| June | 102° | 67° | 0.03" |
| July | 104° | 75° | 0.80" |
| August | 102° | 75° | 1.60" |
| September | 98° | 69° | 0.86" |
| October | 86° | 58° | 0.87" |
| November | 73° | 47° | 1.17" |
| December | 65° | 41° | 1.30" |
Weather information is provided as a general guide for planning your visit. Consult current conditions before travel.
Lost Dutchman State Park is located in the Sonoran Desert, where temperatures can rise dramatically, especially in the summer months. To enjoy the park safely, it’s essential to plan ahead by bringing plenty of water and dressing for the heat. The best times for outdoor activities are in the early morning or late evening when temperatures are cooler. While the desert heat can be intense, taking these precautions allows you to experience the park’s beauty safely and comfortably, even during the hottest parts of the year.
