New Hampshire: Northern Lights Tonight, City by City
Aurora season in New Hampshire runs from September to April.
New Hampshire tonight
Moderate
Best aurora chance tonight, New Hampshire: Moderate. Best place: Somersworth, 10:00 PM–1:00 AM.
| Place | Aurora Score | Best viewing window | Cloud cover | Min Kp |
|---|---|---|---|---|
| Somersworth | 56Moderate | 10:00 PM–1:00 AM | 0% | 5 |
| Concord | 55Moderate | 10:00 PM–1:00 AM | 4% | 5 |
| Keene | 42Low | 12:00 AM–2:00 AM | 3% | 6 |
| Nashua | 41Low | 1:00 AM–5:00 AM | 10% | 6 |
New Hampshire: the next nights
Aurora Forecast AI Tracker
Get aurora alerts for New Hampshire
Track the aurora forecast for New Hampshire with hourly visibility, cloud cover and geomagnetic activity. Save nearby viewing spots, check the best time to look for the Northern Lights, and receive alerts when local conditions improve.
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New Hampshire in numbers
- Cities on this site
- 4
- Latitude
- 42.8°–43.3°
- Geomagnetic latitude
- 50.4°–50.9°
- Min Kp
- 5–6
- Aurora zone
- Mid-latitude
Best Months to See the Northern Lights in New Hampshire
The aurora season in New Hampshire usually runs from September to April.
Where the odds are best in New Hampshire
| Place | Aurora zone | Min Kp | Geomagnetic latitude | Season |
|---|---|---|---|---|
| 🇺🇸ConcordNew Hampshire | Mid-latitude | 5 | 50.9° | September to April |
| 🇺🇸SomersworthNew Hampshire | Mid-latitude | 5 | 50.8° | September to April |
| 🇺🇸KeeneNew Hampshire | Mid-latitude | 6 | 50.8° | September to April |
| 🇺🇸NashuaNew Hampshire | Mid-latitude | 6 | 50.4° | September to April |
Other regions in United States
Frequently Asked Questions
Can you see the Northern Lights in New Hampshire tonight?
New Hampshire: it depends on where you are and on tonight's sky. Concord needs about Kp 5; Nashua needs about Kp 6. On top of that it takes a clear, dark sky — cloud blocks aurora at any Kp. The table at the top of this page has tonight's forecast city by city.
What Kp index is needed to see the Northern Lights in New Hampshire?
New Hampshire has no single number. The higher the Kp, the further from the pole the auroral oval reaches, so the threshold rises with distance from the pole: Concord needs about Kp 5, Nashua about Kp 6. Each city's page gives its own threshold.
What are the best months to see the Northern Lights in New Hampshire?
September to April, with November to February the darkest stretch — though at this latitude the season is set by how often a storm reaches you, not by daylight.
Where is the best place to see the Northern Lights in New Hampshire?
New Hampshire: of the places in this list, Concord needs the least — about Kp 5 — while Nashua needs about Kp 6. Wherever you are, a dark sky away from city lights matters more than the exact spot.