The Best Stargazing Months by Region (and Why)

I’ll never forget the night I drove my partner four hours to a remote glamping dome in the Colorado Rockies, only to realize the moon was nearly full. The sky looked like a dimly lit parking lot. We saw maybe ten stars. I’d checked the weather—clear, 30°F—but I forgot the lunar phase. That mistake cost me $350 and a weekend of awe. Since then, I’ve logged every stargazing trip in a spreadsheet, cross-referencing weather patterns, moon phases, and regional quirks. Here’s the calendar I wish I’d had.

The Stargazing Calendar by Region

I break the US into four zones: Southwest, Pacific Northwest, Northeast, and Southeast. Each has a sweet spot. Each has a trap.

Southwest (Arizona, New Mexico, Utah, Colorado)

Best months: March–May and September–November
Avoid: July–August (monsoon) and December–February (snow clouds, cold)

Spring and fall are goldilocks. In March, the jet stream starts to calm, and the desert air stays dry. I camped near Moab in early April—temps hit 50°F at night, zero humidity, and the Milky Way was visible from 9pm. The Colorado Plateau is one of the best stargazing regions on Earth because of its elevation and low light pollution. In fall, after the monsoon, the skies are scrubbed clean. I once stayed in a /yurts near Sedona in late October and saw the Andromeda Galaxy with naked eyes.

New-moon note: April 20–25 and October 15–20 are prime. Avoid the week of July 4—monsoon clouds roll in by 4pm.

Pacific Northwest (Oregon, Washington, Northern California)

Best months: July–September
Avoid: November–February (rain, clouds, 90% overcast)

Counterintuitive, but summer is actually clear here. The marine layer burns off by June, leaving August and September with bone-dry skies. I stayed in a /domes on the Olympic Peninsula last August—nighttime temps were 55°F, and the sky was so clear I saw the Milky Way reflect in a lake. The trap? People assume the PNW is always rainy, but summer high-pressure systems create excellent transparency.

New-moon note: August 13–17 (Perseid meteor shower) is spectacular. But book glamping a year ahead—seaside domes sell out fast.

Northeast (New York, Vermont, Maine, New Hampshire)

Best months: September–October
Avoid: June–July (haze, bugs, humidity) and January–February (bitter cold, snow cover reflects light)

Fall is the only reliable season. In September, the humidity drops, and the foliage hasn’t peaked yet (less leaf fog). I stayed in a /cabins in the Adirondacks last September 22nd—new moon, 45°F, and I saw the Triangulum Galaxy through binoculars. The catch: you need elevation. Lake Champlain valley often has fog, but 2,000 feet up in the High Peaks, it’s clear. Winter trips are risky unless you’re in a heated yurt—wind chills can hit -20°F.

New-moon note: September 20–25 is magic. June is a wash—I once sat through three nights of overcast in Vermont.

Southeast (Florida, Georgia, North Carolina, Texas Hill Country)

Best months: December–February and June (bizarrely)
Avoid: March–May (spring storms, pollen) and July–November (hurricanes, humidity)

Florida winter is dry—the “dry season” runs December through May. I glamped in the Florida Keys last January during a new moon. The air was 60°F, no bugs, and the Southern Cross was visible near the horizon. Summer? In June, before the Atlantic hurricane season ramps up, you get occasional clear nights. But the humidity kills transparency. I tried stargazing in a /safari-tents in the Everglades in August—my lens fogged up in 10 minutes.

Best kept secret: The Texas Hill Country in February. I rented a /airstream outside Fredericksburg and saw the Winter Hexagon perfectly. Cold fronts push out moisture.

Three Principles I Learned the Hard Way

1. New moon is non-negotiable. Full moon = ruined trip. I now use a moon phase calendar app (I like “Moon” by iHandy) to plan 6 months out.
2. Weather patterns matter more than latitude. Arizona is better than Alaska because of dry air and stable high pressure.
3. Altitude beats darkness. A Bortle 4 site at 8,000 feet is better than a Bortle 1 site at sea level—less atmospheric turbulence.

My Personal Trip Log Snippets

March 2023 – Moab, Utah
Stayed in a /domes. Nightly temps: 30°F. Sky clarity: 9/10. Saw the Zodiacal Light for the first time. New moon was March 21. Booked 3 months in advance.

August 2022 – Olympic Peninsula, WA
Heated dome, 55°F. Perseid shower peak night. Sky clarity: 10/10. Booked the dome 11 months ahead—they sell out.

June 2021 – Vermont
Mistake: full moon June 24. Sky was milk-white. Also, mosquitoes. Never again.

Regional Weather Traps to Avoid

• Southwest summer monsoon: July–August, afternoon thunderstorms every day. Clouds linger into night.
• Northeast summer haze: June–July, humidity makes stars twinkle like crazy (bad for binoculars).
• Pacific Northwest winter: November–February, 70% cloud cover average. Don’t bother.
• Southeast hurricane season: August–October, but September is worst. Storm debris can block roads.

Practical Tips for Couples

• Bring two sleeping bags. Insulated ones for winter—even in a heated dome, the floor is cold.
• Red light only. I use a Petzl Tikka with red mode. White light ruins night vision for 30 minutes.
• Sky map app: I use Sky Safari 6 Plus (paid). Free alternative: Stellarium. Turn off phone brightness.
• Thermos of tea. Nothing kills romance like shivering.
• Book a property with a skylight or transparent roof. I’ve stayed in domes, yurts with skylights, and treehouses with glass ceilings. The /treehouses on glamping.directory often have roof windows.

Final Calendar Cheat Sheet

Region	Best Months	Worst Months
Southwest	Mar–May, Sep–Nov	Jul–Aug (monsoon)
Pacific NW	Jul–Sep	Nov–Feb (rain)
Northeast	Sep–Oct	Jun–Jul (haze)
Southeast	Dec–Feb, Jun	Mar–May (pollen), Jul–Nov (hurricane)

I update this log every year. My biggest advice: start with the new moon, then check the 10-day forecast, then call the glamping host to ask about local light pollution. Most hosts are honest—one told me, “You can see the glow of Phoenix from here,” so I bailed. That conversation saved my trip. Now go find your dark sky.