Friday 30 October in Naantali, 06:51

Northern lights in Naantali

Q: When is the northern lights season in Naantali?

In Naantali it gets dark enough for the aurora every night except from 9 May to 2 August, with up to 14 hours of proper darkness a day in midwinter. The best months are November, September and October, going by darkness and activity in 2014–2025.

Q: What Kp do you need to see the northern lights in Naantali?

In Naantali the aurora can show from about Kp 6.5, against Kp 7 in Helsinki. Activity was that high in under 1% of the hours in 2014–2025. Counting the darkness, that makes about 7 hours in a typical year with both darkness and enough activity, most of them in November. The clouds decide how many of them bring an aurora.

Q: When is it darkest in Naantali?

It is darkest in December, with 15 hours on average per day. The whole year by month: Jan 14 h, Feb 12 h, Mar 9 h, Apr 5 h, May 0 h, Jun 0 h, Jul 0 h, Aug 4 h, Sep 8 h, Oct 11 h, Nov 13 h, Dec 15 h.

In Naantali the aurora can show from about Kp 6.5. Tonight's forecast is Kp 5.0, and right now it is 0.7. Tonight there are 12 hours of proper darkness. It looks best from 02:00 to 04:00, with 75 % cloud cover, so the chance is low.

Updated 30 October at 07:40

Chance tonightLowBest 02:00–04:00 · 75 % cloud cover Darkness tonight12 hSunset 16:39 Best nightNone yetA low chance for the nights the Kp forecast covers Kp tonight5.0Visible here from Kp 6.5 · now 0.7

Sunrise 07:51Drag through the daySunset 16:39

Naantali and the northern lights

Naantali is a municipality in Varsinais-Suomi, Finland, with 19,999 inhabitants. It is also officially called Nådendal. The municipal centre lies at 60.5° N. What counts for the aurora is the magnetic latitude, 58.5° here. Here the aurora can show from about Kp 6.5, against Kp 7 in Helsinki. Activity was that high in under 1% of the hours in 2014–2025.

It gets dark enough for the aurora every night except from 9 May to 2 August, with up to 14 hours of proper darkness a day in midwinter. Counting the darkness, that makes about 7 hours in a typical year with both darkness and enough activity, most of them in November. The clouds decide how many of them bring an aurora.

Tonight in Naantali, hour by hour

When it is dark enough, how cloudy it is, and the chance each hour from the Kp forecast and the cloud cover. Hours already gone have no forecast.

18:0057 %
19:0076 %
20:0094 %
21:0099 %
22:00100 %
23:00100 %
00:0096 %
01:0070 %
02:0066 %
03:0083 %
04:0090 %
05:0090 %

Dark enoughToo lightHigh chanceModerateLowMoonlight (73 % full) dims a faint auroraBest 02:00–04:00

The next seven nights in Naantali

Darkness, cloud and the chance for each night. The Kp forecast reaches three nights; the dashed nights after rest on NOAA’s long-range outlook and are only a pointer.

tonightLow12 hours darkBest 02:00–04:0075 % cloud coverKp max 5.0
tomorrowLow12 hours darkOvercast all night100 % cloud coverKp max 4.7
the day after tomorrowLow12 hours darkOvercast all night100 % cloud coverKp max 3.7
MondayLow12 hours darkBest 19:00–21:0029 % cloud coverKp about 2.5Rough guess from NOAA’s long-range outlook
TuesdayLow12 hours darkBest 19:00–21:0043 % cloud coverKp about 2.0Rough guess from NOAA’s long-range outlook
WednesdayLow12 hours darkBest 01:00–03:0027 % cloud coverKp about 2.5Rough guess from NOAA’s long-range outlook
ThursdayLow12 hours darkBest 19:00–21:0015 % cloud coverKp about 3.0Rough guess from NOAA’s long-range outlook

Plan a trip to Naantali

The next four weeks, night by night: activity, darkness and moon

30 Oct–1 NovWeak · Kp ≈ 5.0 · moon 62 %

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When can you see the northern lights in Naantali?

The aurora needs both darkness and enough activity on the sun. Each column is a day: dark blue is the hours that are dark enough, green those of them when activity has been high enough here, on average 2014–2025.

Here it takes Kp 6.5 or more, which is rare: on average only a few minutes a night. The best chance is in November, September and October. Activity peaks around the March and September equinoxes, the nights are longest in midwinter.

<0.1 hJan
<0.1 hFeb
<0.1 hMar
<0.1 hApr
0 hMay
0 hJun
0 hJul
<0.1 hAug
<0.1 hSep
<0.1 hOct
<0.1 hNov
<0.1 hDec

Light or twilightDark enough (dark blue and green together)Of those, with enough activity (Kp 6.5 or more), average 2014–2025Best months

Clouds are left out: on average cloud cover varies little from month to month, while it decides each single night. See the forecast above.

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Questions about the northern lights in Naantali

Can I see the northern lights in Naantali today?

When is the northern lights season in Naantali?

In Naantali it gets dark enough for the aurora every night except from 9 May to 2 August, with up to 14 hours of proper darkness a day in midwinter. The best months are November, September and October, going by darkness and activity in 2014–2025.

What Kp do you need to see the northern lights in Naantali?

In Naantali the aurora can show from about Kp 6.5, against Kp 7 in Helsinki. Activity was that high in under 1% of the hours in 2014–2025. Counting the darkness, that makes about 7 hours in a typical year with both darkness and enough activity, most of them in November. The clouds decide how many of them bring an aurora.

When is it darkest in Naantali?

It is darkest in December, with 15 hours on average per day. The whole year by month: Jan 14 h, Feb 12 h, Mar 9 h, Apr 5 h, May 0 h, Jun 0 h, Jul 0 h, Aug 4 h, Sep 8 h, Oct 11 h, Nov 13 h, Dec 15 h.

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