Home › Aurora Tonight › 78-City Aurora Calculator
78-City Aurora Visibility & Geomagnetic Latitude Calculator
Select any of 78 cities across the United States, Canada, Europe, and the Southern Hemisphere—or enter custom coordinates—to compute your centered-dipole geomagnetic latitude (WMM2025 pole at 80.85°N, 72.76°W), minimum horizon vs. overhead Kp thresholds, and live 24-hour NOAA aurora status.
Can I see the aurora from my city tonight? (78 cities + custom latitude)
Select your city—or enter any geographic latitude and longitude—to compute its centered-dipole geomagnetic latitude (WMM2025 pole at 80.85°N, 72.76°W), the minimum Kp needed on the poleward horizon vs overhead, and whether NOAA's live 24-hour Kp outlook reaches your threshold tonight.
Select a city above to compare its geomagnetic latitude with tonight's NOAA Kp forecast.
Want high-odds overhead aurora without waiting for a rare G3–G5 storm? Compare 38 vetted 3★+ aurora resorts, glass igloos & lodges right under the auroral oval (Tromsø, Abisko, Rovaniemi, Saariselkä, Iceland, Fairbanks, Yellowknife, Churchill), where Kp 1–2 is enough whenever skies are clear. Also see our Kp index guide.
All 78 Cities: Geomagnetic Latitudes, Kp Thresholds & Live Regional Guides
| City | Region Group | Geomagnetic Lat | Horizon Kp | Overhead Kp | State / Region Tonight Guide |
|---|---|---|---|---|---|
| Fairbanks, AK Under the auroral oval; overhead displays common at Kp 1–2 |
US — Alaska & West | 65.7°N | Kp 0.5 | Kp 1.0 | Live Alaska Guide → |
| Anchorage, AK South of Fairbanks; active aurora on clear nights at Kp 2–3 |
US — Alaska & West | 61.9°N | Kp 2.0 | Kp 2.5 | Live Alaska Guide → |
| Juneau, AK High geomagnetic latitude; coastal cloud is the main hurdle |
US — Alaska & West | 61.6°N | Kp 2.0 | Kp 3.0 | Live Alaska Guide → |
| Seattle, WA Northern horizon glow in G1–G2 storms (Kp 5–6) |
US — Alaska & West | 53.0°N | Kp 5.5 | Kp 7.0 | Live Washington Guide → |
| Spokane, WA Drier inland skies east of the Cascades; good at Kp 5 |
US — Alaska & West | 53.7°N | Kp 5.0 | Kp 6.5 | Live Washington Guide → |
| Portland, OR Northern horizon during G2+ storms (Kp 6+) |
US — Alaska & West | 50.9°N | Kp 6.5 | Kp 8.0 | Live Oregon Guide → |
| Boise, ID Dark desert/mountain horizons north of town at Kp 6+ |
US — Alaska & West | 49.9°N | Kp 7.0 | Kp 8.5 | Live Idaho Guide → |
| Billings, MT Strong northern-tier US location; horizon aurora at Kp 5 |
US — Alaska & West | 52.9°N | Kp 5.5 | Kp 7.0 | Live Montana Guide → |
| Bozeman, MT High-elevation dark valleys; northern horizon at Kp 5 |
US — Alaska & West | 52.5°N | Kp 5.5 | Kp 7.5 | Live Montana Guide → |
| Cheyenne, WY Requires moderate-to-strong storms (Kp 6.5–7) |
US — Alaska & West | 48.7°N | Kp 7.5 | Kp 9.0 | Live Wyoming Guide → |
| Salt Lake City, UT Northern horizon in strong G3+ storms (Kp 7–7.5) |
US — Alaska & West | 47.6°N | Kp 7.5 | Kp 9.0 | Use calculator ↑ |
| Denver, CO Visible on the northern horizon during G3 storms (Kp 7) |
US — Alaska & West | 47.3°N | Kp 8.0 | Kp 9.0 | Live Colorado Guide → |
| San Francisco, CA Requires severe G4–G5 storms (Kp 8.5–9) for red northern glow |
US — Alaska & West | 43.3°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Los Angeles, CA Only extreme G5 storms (Kp 9, such as May 2024) reach the horizon |
US — Alaska & West | 40.2°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Phoenix, AZ Requires extreme G5 geomagnetic storms (Kp 9) |
US — Alaska & West | 40.3°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Fargo, ND One of the best contiguous US cities due to the North American dipole tilt |
US — Midwest & Plains | 55.1°N | Kp 4.5 | Kp 6.0 | Live North Dakota Guide → |
| Bismarck, ND High geomagnetic latitude (~55°N); horizon aurora at Kp 4.5–5 |
US — Midwest & Plains | 54.7°N | Kp 5.0 | Kp 6.0 | Live North Dakota Guide → |
| Duluth, MN Open northern sightlines across Lake Superior; active at Kp 4.5–5 |
US — Midwest & Plains | 55.3°N | Kp 4.5 | Kp 6.0 | Live Minnesota Guide → |
| Minneapolis–St. Paul, MN Frequent horizon sightings at Kp 5 (G1) away from city glare |
US — Midwest & Plains | 53.4°N | Kp 5.5 | Kp 7.0 | Live Minnesota Guide → |
| Marquette, MI Upper Peninsula shore looking north over Lake Superior; Kp 4.5–5 |
US — Midwest & Plains | 55.3°N | Kp 4.5 | Kp 6.0 | Live Michigan Guide → |
| Madison, WI Visible on the northern horizon at Kp 5.5–6 |
US — Midwest & Plains | 51.8°N | Kp 6.0 | Kp 7.5 | Live Wisconsin Guide → |
| Detroit, MI Look north over Lake Huron / Thumb dark-sky parks at Kp 5.5–6 |
US — Midwest & Plains | 51.3°N | Kp 6.0 | Kp 8.0 | Live Michigan Guide → |
| Chicago, IL Needs Kp 6 and a drive away from urban light pollution |
US — Midwest & Plains | 50.7°N | Kp 6.5 | Kp 8.0 | Live Illinois Guide → |
| Des Moines, IA Open rural horizons; visible at Kp 6 |
US — Midwest & Plains | 50.0°N | Kp 6.5 | Kp 8.5 | Use calculator ↑ |
| Omaha, NE Northern horizon during G2 storms (Kp 6–6.5) |
US — Midwest & Plains | 49.6°N | Kp 7.0 | Kp 8.5 | Use calculator ↑ |
| Indianapolis, IN Visible during G2–G3 storms (Kp 6.5–7) |
US — Midwest & Plains | 48.6°N | Kp 7.5 | Kp 9.0 | Use calculator ↑ |
| St. Louis, MO Requires strong G3 storms (Kp 7) |
US — Midwest & Plains | 47.3°N | Kp 8.0 | Kp 9.0 | Use calculator ↑ |
| Kansas City, MO Northern horizon in G3 storms (Kp 7) |
US — Midwest & Plains | 47.5°N | Kp 8.0 | Kp 9.0 | Use calculator ↑ |
| Dallas, TX Requires G4–G5 severe storms (Kp 8.5–9) for red horizon glow |
US — Midwest & Plains | 41.0°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Houston, TX Requires extreme G5 storms (Kp 9) |
US — Midwest & Plains | 38.1°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Caribou / Presque Isle, ME High geomagnetic latitude (~55.9°N) and dark Aroostook skies; Kp 4.5 |
US — East & South | 56.0°N | Kp 4.5 | Kp 5.5 | Live Maine Guide → |
| Burlington, VT Strong New England location; northern horizon at Kp 5 |
US — East & South | 53.6°N | Kp 5.5 | Kp 7.0 | Live Vermont Guide → |
| Portland, ME Visible at Kp 5–5.5 from dark sites north of town |
US — East & South | 52.8°N | Kp 5.5 | Kp 7.0 | Live Maine Guide → |
| Buffalo, NY Northern horizon across Lake Ontario during Kp 5.5–6 storms |
US — East & South | 52.0°N | Kp 6.0 | Kp 7.5 | Live New York Guide → |
| Boston, MA Visible at Kp 6 from dark coastal or inland viewpoints |
US — East & South | 51.5°N | Kp 6.0 | Kp 8.0 | Live Massachusetts Guide → |
| New York City, NY Needs Kp 6.5 (G2–G3) and a dark northern horizon away from city glare |
US — East & South | 49.9°N | Kp 7.0 | Kp 8.5 | Live New York Guide → |
| Philadelphia, PA Northern horizon in G3 storms (Kp 6.5–7) |
US — East & South | 49.1°N | Kp 7.0 | Kp 9.0 | Live Pennsylvania Guide → |
| Pittsburgh, PA Visible on the northern horizon at Kp 6.5 |
US — East & South | 49.5°N | Kp 7.0 | Kp 9.0 | Live Pennsylvania Guide → |
| Washington, DC Visible from dark sites (e.g. Shenandoah) during Kp 7–7.5 storms |
US — East & South | 48.0°N | Kp 7.5 | Kp 9.0 | Use calculator ↑ |
| Charlottesville / Scottsville, VA Central Virginia (~47°N geomagnetic): red/green horizon glow at Kp 7.5–8 (as in May & Oct 2024) |
US — East & South | 46.9°N | Kp 8.0 | Kp 9.0 | Use calculator ↑ |
| Raleigh, NC Requires G4 storms (Kp 8–8.5) |
US — East & South | 44.9°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Atlanta, GA Requires severe G4–G5 storms (Kp 8.5–9) |
US — East & South | 42.7°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Nashville, TN Northern horizon in G4 storms (Kp 8) |
US — East & South | 45.0°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Miami, FL Extreme G5 storms only (Kp 9) |
US — East & South | 34.8°N | Kp 9.0 | Kp 9.0 | Use calculator ↑ |
| Yellowknife, NT Directly under the auroral oval (~69°N geomagnetic); overhead at Kp 0–2 |
Canada | 68.5°N | Kp 0.0 | Kp 0.0 | Live Northern Canada Guide → |
| Churchill, MB Sub-60° geographic but ~68°N geomagnetic; overhead at Kp 0–2 |
Canada | 67.1°N | Kp 0.0 | Kp 0.0 | Live Northern Canada Guide → |
| Whitehorse, YT Core auroral zone; overhead curtains at Kp 2–3 |
Canada | 63.8°N | Kp 1.0 | Kp 2.0 | Live Northern Canada Guide → |
| Edmonton, AB High geomagnetic latitude (~60.4°N); frequent aurora at Kp 2.5–3 |
Canada | 60.0°N | Kp 2.5 | Kp 3.5 | Live Alberta Guide → |
| Calgary, AB Visible on most active nights (Kp 3.5–4) |
Canada | 57.4°N | Kp 3.5 | Kp 5.0 | Live Alberta Guide → |
| Winnipeg, MB Very high geomagnetic latitude (~58.6°N); active at Kp 3–4 |
Canada | 58.0°N | Kp 3.5 | Kp 4.5 | Use calculator ↑ |
| Vancouver, BC Northern horizon at Kp 4.5–5 when coastal skies are clear |
Canada | 54.5°N | Kp 5.0 | Kp 6.5 | Live British Columbia Guide → |
| Toronto, ON Strong geomagnetic boost (~52.8°N); visible outside city lights at Kp 5.5 |
Canada | 52.7°N | Kp 5.5 | Kp 7.0 | Live Ontario Guide → |
| Ottawa, ON Frequent displays at Kp 5 |
Canada | 54.6°N | Kp 5.0 | Kp 6.5 | Live Ontario Guide → |
| Montreal, QC Visible on the northern horizon at Kp 5 |
Canada | 54.6°N | Kp 5.0 | Kp 6.5 | Live Quebec Guide → |
| Halifax, NS Northern horizon at Kp 5–5.5 |
Canada | 53.7°N | Kp 5.0 | Kp 6.5 | Use calculator ↑ |
| Tromsø, Norway Directly beneath the European auroral oval; overhead at Kp 1–2 |
Europe | 67.5°N | Kp 0.0 | Kp 0.0 | Live Norway Guide → |
| Alta, Norway Core auroral oval with drier inland fjord skies; overhead at Kp 1–2 |
Europe | 67.2°N | Kp 0.0 | Kp 0.0 | Live Norway Guide → |
| Svolvær (Lofoten), Norway Under the auroral oval; overhead at Kp 1–3 |
Europe | 66.9°N | Kp 0.0 | Kp 0.5 | Live Norway Guide → |
| Longyearbyen (Svalbard), Norway North of the quiet midnight oval; daytime cusp aurora in polar night |
Europe | 75.3°N | Kp 0.0 | Kp 0.0 | Live Norway Guide → |
| Abisko / Kiruna, Sweden Rain-shadow microclimate right under the oval; Kp 1–3 |
Europe | 66.3°N | Kp 0.0 | Kp 0.5 | Live Sweden & Finland Guide → |
| Rovaniemi, Finland On the Arctic Circle; horizon at Kp 1, overhead at Kp 2.5–3 |
Europe | 63.6°N | Kp 1.0 | Kp 2.0 | Live Sweden & Finland Guide → |
| Inari / Saariselkä, Finland Deep under the oval in northern Lapland; overhead at Kp 1–2 |
Europe | 65.7°N | Kp 0.5 | Kp 1.0 | Live Sweden & Finland Guide → |
| Reykjavík, Iceland Inside the auroral zone (~65.5°N geomagnetic); overhead at Kp 1.5–3 |
Europe | 68.8°N | Kp 0.0 | Kp 0.0 | Live Iceland Guide → |
| Akureyri, Iceland North Iceland rain shadow; overhead at Kp 1–3 |
Europe | 69.6°N | Kp 0.0 | Kp 0.0 | Live Iceland Guide → |
| Inverness, Scotland, UK Northern Scotland; horizon aurora at Kp 3.5–4, overhead in G2+ storms |
Europe | 59.7°N | Kp 3.0 | Kp 4.0 | Live Scotland & UK Guide → |
| Edinburgh, Scotland, UK Northern horizon at Kp 4–5 |
Europe | 58.1°N | Kp 3.5 | Kp 4.5 | Live Scotland & UK Guide → |
| Dublin, Ireland Northern horizon during G1–G2 storms (Kp 5–5.5) |
Europe | 56.1°N | Kp 4.0 | Kp 5.5 | Live Scotland & UK Guide → |
| Oslo, Norway Southern Norway; visible at Kp 3.5–4.5 |
Europe | 59.7°N | Kp 3.0 | Kp 4.0 | Live Norway Guide → |
| Stockholm, Sweden Visible on clear nights at Kp 4–5 |
Europe | 58.0°N | Kp 3.5 | Kp 4.5 | Live Sweden & Finland Guide → |
| Helsinki, Finland Visible across southern Finland at Kp 4–5 |
Europe | 57.8°N | Kp 3.5 | Kp 4.5 | Live Sweden & Finland Guide → |
| London, UK Requires strong G2–G3 storms (Kp 5.5–6.5) outside urban light domes |
Europe | 53.4°N | Kp 5.5 | Kp 7.0 | Live Scotland & UK Guide → |
| Berlin, Germany Requires G2–G3 storms (Kp 6–6.5) |
Europe | 52.2°N | Kp 6.0 | Kp 7.5 | Use calculator ↑ |
| Paris, France Requires G3 storms (Kp 6.5–7.5) |
Europe | 50.4°N | Kp 6.5 | Kp 8.5 | Use calculator ↑ |
| Hobart, Tasmania, Australia High southern geomagnetic latitude (~50°S); southern horizon at Kp 6–6.5 |
Southern Hemisphere | 49.5°S | Kp 7.0 | Kp 9.0 | Live Tasmania & Australia Guide → |
| Melbourne, Australia Southern coastal horizon during G3–G4 storms (Kp 7.5–8) |
Southern Hemisphere | 44.8°S | Kp 9.0 | Kp 9.0 | Live Tasmania & Australia Guide → |
| Dunedin / Queenstown, New Zealand Prime Aurora Australis base; southern horizon at Kp 6–6.5 |
Southern Hemisphere | 49.3°S | Kp 7.0 | Kp 9.0 | Live New Zealand Guide → |
| Christchurch, New Zealand Visible on the southern horizon at Kp 7 |
Southern Hemisphere | 46.7°S | Kp 8.0 | Kp 9.0 | Live New Zealand Guide → |
| Ushuaia, Argentina Lower geomagnetic latitude (~45.6°S) due to dipole tilt away from South America; needs Kp 8 |
Southern Hemisphere | 45.7°S | Kp 8.5 | Kp 9.0 | Use calculator ↑ |