Northern lights in New Hampshire tonight
The aurora forecast for New Hampshire, hour by hour: the Kp index NOAA expects, how dark it gets, the Moon and the clouds, for the north of the state (Berlin) where the odds are best.
Unlikely Sunday, November 1
The highest Kp expected after dark tonight is 3. Berlin (north New Hampshire) needs about Kp 6 to see the aurora low on the northern horizon, and the sky cover forecast after dark averages 18%. The Moon is 46% lit.
| Time | Sky | Kp | Clouds | Moon | Chance |
|---|---|---|---|---|---|
| 6 PM | Dark | 2.67 | 14% | down | Unlikely |
| 7 PM | Dark | 2.67 | 8% | down | Unlikely |
| 8 PM | Dark | 2.67 | 10% | down | Unlikely |
| 9 PM | Dark | 2.67 | 17% | down | Unlikely |
| 10 PM | Dark | 3.00 | 18% | down | Unlikely |
| 11 PM | Dark | 3.00 | 21% | 1° | Unlikely |
| 12 AM | Dark | 3.00 | 14% | 10° | Unlikely |
| 1 AM | Dark | 3.00 | 21% | 20° | Unlikely |
| 2 AM | Dark | 3.00 | 19% | 30° | Unlikely |
| 3 AM | Dark | 3.00 | 23% | 40° | Unlikely |
| 4 AM | Dark | 2.67 | 23% | 50° | Unlikely |
| 5 AM | Dark | 2.67 | 23% | 57° | Unlikely |
Forecast from NOAA SWPC (Kp, 3-hour blocks) and the National Weather Service (sky cover), checked when this page was built. The page updates itself when it can reach our data feed.
What Kp you need in New Hampshire
The farther north (in magnetic terms) you stand, the lower the Kp you need. From Berlin, an aurora usually shows low on the northern horizon once Kp reaches about 6; overhead displays need about two steps more. A phone camera in night mode often records it one step earlier than the eye. How we estimate this: our method.
How often the aurora reaches New Hampshire
Our own count from the official Kp archive: on how many nights each year the Kp index reached about 6 or more while it was dark at Berlin. Clouds are not counted, so the real number of nights with a visible aurora is lower. Over the last 10 years the average was 4.4 nights a year; in 2025 it was 12.
Data: Kp index since 1932, GFZ Helmholtz Centre for Geosciences (Matzka et al., 2021), CC BY 4.0. Darkness computed by us for each 3-hour interval (Sun 12° or more below the horizon).
The next 27 days
NOAA's 27-day outlook has no day with a largest Kp near the 6 that Berlin needs. The outlook repeats the Sun's 27-day rotation and cannot see sudden storms, so check the 3-day forecast too.
| Day (UTC) | Largest Kp | At Berlin |
|---|---|---|
| Sun, Nov 1 | 4 | Unlikely |
| Mon, Nov 2 | 3 | Unlikely |
| Tue, Nov 3 | 2 | Unlikely |
| Wed, Nov 4 | 2 | Unlikely |
| Thu, Nov 5 | 3 | Unlikely |
| Fri, Nov 6 | 3 | Unlikely |
| Sat, Nov 7 | 3 | Unlikely |
| Sun, Nov 8 | 2 | Unlikely |
| Mon, Nov 9 | 4 | Unlikely |
| Tue, Nov 10 | 3 | Unlikely |
First 10 days shown. Full table: 27-day aurora forecast.
Where to watch in New Hampshire
New Hampshire's North Country is a good aurora area for New England. Around Berlin, Errol and Pittsburg the skies are dark and displays show during moderate storms. The southern tier near Manchester and Nashua is brighter and needs more activity.
Lakes and open ridges in the north give the best horizons. In the White Mountains, choose a spot where peaks are not directly north.
- Coleman State Park: lake state park in Stewartstown, far northern New Hampshire
- Lake Umbagog National Wildlife Refuge: lake and wetland refuge near Errol on the Maine border
- White Mountain National Forest: national forest covering the White Mountains, north of Lincoln and Conway
Nearby states
Questions people ask
Can you see the northern lights in New Hampshire?
Yes, on active nights. From Berlin it takes about Kp 6, which happened on about 4.4 nights a year over the last 10 years (before clouds).
What time is best?
Usually between 10 pm and 2 am local time, when the sky is fully dark and your location faces the night side of the auroral oval. Storms can bring it earlier or later.
Which way should I look?
North, toward a low, open horizon away from city lights. In strong storms the aurora can climb higher or appear overhead.
Is this an official forecast?
No. It is our estimate built from NOAA's Kp forecast, the National Weather Service sky cover forecast and the Sun and Moon positions. It is not a promise.
Sources: Kp forecast and 27-day outlook: NOAA Space Weather Prediction Center (public domain). Sky cover: National Weather Service (public domain). Kp archive: GFZ, CC BY 4.0. Coordinates: U.S. Census Bureau Gazetteer. Magnetic latitude: our calculation from the IGRF-14 model of Earth's magnetic field. Sun and Moon: Astronomy Engine. Unofficial estimates, not a guarantee.
Page checked: November 1, 2026.