Is Newcastle upon Tyne or York better for the northern lights?

Newcastle upon Tyne sits closer to the oval, at 56.9 degrees geomagnetic against 55.9. Darkness, cloud and your dates decide the rest; the tables on this page show both towns month by month.

Which has longer nights in December, Newcastle upon Tyne or York?

Newcastle upon Tyne, with 15.2 hours of civil night on December 15 against 15.0 in York.

What Kp do Newcastle upon Tyne and York need?

By SWPC's rule of 66 degrees at Kp 0 and 2 degrees per step, Newcastle upon Tyne needs about Kp 5 and York Kp 6 for the average oval edge to sit overhead.

When is it too light for aurora in Newcastle upon Tyne and York?

Newcastle upon Tyne: never, every night has civil darkness. York: never, every night has civil darkness.

Which is clearer, Newcastle upon Tyne or York?

York, with 74% mean cloud in the months with 4 hours or more of civil night against 77% in Newcastle upon Tyne (NASA POWER, 2001 to 2020).

Comparison

Newcastle upon Tyne vs York for the northern lights

Answer

Newcastle upon Tyne sits 1.1 degrees higher on the IGRF-14 dipole, 56.9 against 55.9. By SWPC's oval-edge rule Newcastle upon Tyne needs about Kp 5 for the average edge to sit overhead and York Kp 6. On the map Newcastle upon Tyne is also closer to the pole, by 1.0 degrees.

56.9° / 55.9°

dipole latitude

Side by side

Computed figures for both towns
Figure	Newcastle upon Tyne	York
Dipole latitude	56.9°	55.9°
Kp for the oval edge overhead	Kp 5	Kp 6
Civil night, December 15	15.2 h	15.0 h
Dark-season days	365	365
Nights with no civil darkness	0	0
Dark-month cloud, NASA POWER	77%	74%
Solar midnight, December 15	00:02	23:59

Newcastle upon Tyne sits at 56.9 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 5, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less. York sits at 55.9 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 6, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less.

Civil night month by month

On December 15 Newcastle upon Tyne has 15.2 hours of civil night and York 15.0. Across the 15th of each month, Newcastle upon Tyne is darker in 5 months and York in 6. The widest gap comes in June, when York has 0.4 more hours.

Hours of civil night on the 15th of each month, 2026
Month	Newcastle upon Tyne	York	Difference
January	14.6 h	14.5 h	+0.1 h
February	12.9 h	12.8 h	+0.1 h
March	10.8 h	10.9 h	-0.1 h
April	8.4 h	8.5 h	-0.1 h
May	6.1 h	6.3 h	-0.2 h
June	4.5 h	4.9 h	-0.4 h
July	5.3 h	5.6 h	-0.3 h
August	7.5 h	7.7 h	-0.2 h
September	10.0 h	10.0 h	+0.0 h
October	12.2 h	12.1 h	+0.1 h
November	14.1 h	14.0 h	+0.1 h
December	15.2 h	15.0 h	+0.2 h

Difference: Newcastle upon Tyne minus York. Each figure links to that town's month page.

Season and midnight sun

Newcastle upon Tyne has some civil darkness every night of 2026, and clears Glow's 4-hour dark-season bar every evening. York has some civil darkness every night of 2026, and clears Glow's 4-hour dark-season bar every evening.

Distance, cloud and time zones

The two towns are 118 km apart by great circle. In the dark months York averages 74% cloud and Newcastle upon Tyne 77%, from NASA POWER's 2001 to 2020 record. Newcastle upon Tyne's best month by civil night times clear sky is December. York's best month by civil night times clear sky is December. Time zones: Europe/London and Europe/London.

For tonight, open the live pages for Newcastle upon Tyne and York, which carry the live OVATION cell.

Questions

Is Newcastle upon Tyne or York better for the northern lights?: Newcastle upon Tyne sits closer to the oval, at 56.9 degrees geomagnetic against 55.9. Darkness, cloud and your dates decide the rest; the tables on this page show both towns month by month.
Which has longer nights in December, Newcastle upon Tyne or York?: Newcastle upon Tyne, with 15.2 hours of civil night on December 15 against 15.0 in York.
What Kp do Newcastle upon Tyne and York need?: By SWPC's rule of 66 degrees at Kp 0 and 2 degrees per step, Newcastle upon Tyne needs about Kp 5 and York Kp 6 for the average oval edge to sit overhead.
When is it too light for aurora in Newcastle upon Tyne and York?: Newcastle upon Tyne: never, every night has civil darkness. York: never, every night has civil darkness.
Which is clearer, Newcastle upon Tyne or York?: York, with 74% mean cloud in the months with 4 hours or more of civil night against 77% in Newcastle upon Tyne (NASA POWER, 2001 to 2020).

Sources and verification

IGRF-14 coefficients, NOAA NCEIhttps://www.ngdc.noaa.gov/IAGA/vmod/coeffs/igrf14coeffs.txt
SunCalchttps://github.com/mourner/suncalc
GeoNameshttps://www.geonames.org/export/
NASA POWER climatologyhttps://power.larc.nasa.gov/docs/services/api/temporal/climatology/
NOAA SWPC, Tips on viewing the aurorahttps://www.spaceweather.gov/content/tips-viewing-aurora

Quoted figures last checked against their sources on 2026-09-30; next review 2026-12-31. Computed figures come from SunCalc and the IGRF-14 dipole as described in the methodology. Every quote is listed in the sources ledger.