Skip to content
Rule Morning Frost

Levi - Morning Frost - Finnish Lapland

Sirkka, Lapland, Finland

Frost crystals on calm, cold mornings near sunrise

No opportunities right now
Here’s what usually blocks matches

No Morning Frost opportunities in the next 14 days

Get notified
Free alerts · takes 30 seconds
Rule requirements (key thresholds)
Time Window · Sunrise -45m to +90m Frost Probability · ≥ 60.0% Wind Speed · ≤ 1.5m/s

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Time Window 100% failing
Frost Probability 100% failing
Wind Speed 76% failing

Currently

Real-time conditions
Soil Temperature10.5°C
Dew Point10.7°C (moderate dew point)
Wind Speed2.3m/s (calm conditions)
Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the extreme arctic frost conditions that make Finnish Lapland a winter photographer's paradise. We combine temperature, humidity, wind, and snow data to predict when the region's legendary frost phenomena will occur.

Finnish Lapland experiences frost conditions unlike anywhere else in accessible Europe. Temperatures routinely drop to -30°C or colder from December through February, creating frost phenomena that must be seen to be believed. The region's unique combination of humid air from the Atlantic meeting extreme cold creates the spectacular "tykkylumi" or crown snow phenomenon—where every tree branch becomes encased in thick layers of frost and snow.

What makes Finnish Lapland special for frost photography:

  • Tykkylumi crown snow - Trees completely transformed into white sculptures by accumulated frost and snow
  • Extreme cold tolerance - Consistent temperatures of -20°C to -40°C create reliable frost conditions
  • Ice flowers - Lake Inari and smaller water bodies develop crystalline ice formations
  • Frozen waterfalls - Waterfalls freeze into spectacular ice sculptures

Riisitunturi National Park near Kuusamo is world-famous for tykkylumi—every spruce tree on the fell tops becomes a ghostly white sentinel, transformed by weeks of accumulated frost. The phenomenon occurs when supercooled fog droplets freeze instantly on contact with trees, building up thick layers. Pallas-Yllästunturi offers similar conditions with the added drama of fell landscapes. At -30°C, even your breath creates instant frost crystals in the air, and any exposed water generates spectacular ice formations. The key is visiting during stable cold periods in midwinter—our forecast identifies when conditions favor crown snow accumulation and tracks visibility for photography.

Create your own Morning Frost alerts

Get notified when these conditions match at your own locations.

Get this template

72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Tue, Jul 7
16:00-0%2.2m/s
17:00-0%2.4m/s
18:00-0%2.3m/s
19:00-0%2m/s
20:00-0%2.4m/s
21:00-0%1.6m/s
22:00-0%1.2m/s
23:00-0%0.85m/s
Wed, Jul 8
24:00-0%0.64m/s
01:00-0%0.43m/s
02:00-0%0.4m/s
03:00-0%1.1m/s
04:00-0%1.3m/s
05:00-0%1.7m/s
06:00-0%1.8m/s
07:00-0%1.9m/s
08:00-0%1.9m/s
09:00-0%2.3m/s
10:00-0%2.6m/s
11:00-0%2.3m/s
12:00-0%3.4m/s
13:00-0%3.2m/s
14:00-0%1.8m/s
15:00-0%2.2m/s
16:00-0%2.2m/s
17:00-0%2.3m/s
18:00-0%2.2m/s
19:00-0%2m/s
20:00-0%2.3m/s
21:00-0%1.9m/s
22:00-0%1.8m/s
23:00-0%2.1m/s
Thu, Jul 9
24:00-0%2m/s
01:00-0%1.8m/s
02:00-0%2m/s
03:00-0%1.8m/s
04:00-0%1.7m/s
05:00-0%1.5m/s
06:00-0%1.7m/s
07:00-0%2m/s
08:00-0%2.2m/s
09:00-0%2.8m/s
10:00-0%3.1m/s
11:00-0%2.8m/s
12:00-0%2.6m/s
13:00-0%2.7m/s
14:00-0%2.5m/s
15:00-0%1.9m/s
16:00-0%1.3m/s
17:00-0%1.4m/s
18:00-0%0.63m/s
19:00-0%0.61m/s
20:00-0%0.34m/s
21:00-0%0.79m/s
22:00-0%0.44m/s
23:00-0%0.23m/s
Fri, Jul 10
24:00-0%0.55m/s
01:00-0%1.2m/s
02:00-0%1.6m/s
03:00-0%1.4m/s
04:00-0%1.5m/s
05:00-0%1.8m/s
06:00-0%1.3m/s
07:00-0%1.7m/s
08:00-0%1.9m/s
09:00-0%2.1m/s
10:00-0%1.9m/s
11:00-0%1.9m/s
12:00-0%1.7m/s
13:00-0%2m/s
14:00-0%2.4m/s
15:00-0%2.7m/s
16:00-0%2m/s
17:00-0%2.2m/s
18:00-0%2m/s
19:00-0%1.8m/s
20:00-0%1.1m/s
21:00-0%0.71m/s
22:00-0%1.1m/s
23:00-0%1.5m/s
Sat, Jul 11
24:00-0%1.8m/s
01:00-0%2.2m/s
02:00-0%2.7m/s
03:00-0%3.1m/s
04:00-0%3.6m/s
05:00-0%4m/s
06:00-0%4.5m/s
07:00-0%4.4m/s
08:00-0%4.3m/s
09:00-0%4.2m/s
10:00-0%3.8m/s
11:00-0%3.4m/s
12:00-0%3m/s
13:00-0%2.6m/s
14:00-0%2.2m/s
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Europe/Helsinki
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Wed, Jul 8
17:00
11°C 10°C 11°C - 100% 0.07kPa
18:00
10°C 10°C 11°C - 100% 0.04kPa
19:00
10°C 10°C 11°C - 100% 0.04kPa
20:00
10°C 10°C 11°C - 100% 0.04kPa
21:00
9.9°C 10°C 10°C - 53% 0.04kPa
22:00
9.8°C 10°C 10°C - 100% 0.04kPa
23:00
9.5°C 10°C 9.8°C - 100% 0.03kPa
Thu, Jul 9
24:00
9.3°C 10°C 9.6°C - 99% 0.03kPa
01:00
9.1°C 10°C 9.4°C - 86% 0.02kPa
02:00
8.9°C 10°C 9.2°C - 57% 0.02kPa
03:00
8.2°C 10°C 8.5°C - 20% 0.02kPa
04:00
7.6°C 9.9°C 7.9°C - 19% 0.02kPa
05:00
8.2°C 9.8°C 8.7°C - 9% 0.03kPa
06:00
8.8°C 9.8°C 9.8°C - 5% 0.08kPa
07:00
9.1°C 9.8°C 11°C - 3% 0.14kPa
08:00
9.5°C 9.9°C 12°C - 25% 0.23kPa
09:00
9.2°C 10°C 13°C - 55% 0.35kPa
10:00
8.8°C 10°C 14°C - 76% 0.45kPa
11:00
8.9°C 10°C 15°C - 46% 0.54kPa
12:00
8.7°C 11°C 16°C - 82% 0.71kPa
13:00
8.5°C 11°C 17°C - 97% 0.77kPa
14:00
8.9°C 11°C 16°C - 49% 0.69kPa
15:00
8.9°C 12°C 18°C - 68% 0.88kPa
16:00
8.7°C 12°C 18°C - 73% 0.91kPa
17:00
8.5°C 12°C 18°C - 75% 0.96kPa
18:00
8.5°C 12°C 18°C - 92% 0.96kPa
19:00
9.3°C 13°C 17°C - 100% 0.76kPa
20:00
9.7°C 13°C 16°C - 100% 0.64kPa
21:00
9.9°C 13°C 15°C - 100% 0.53kPa
22:00
9.7°C 13°C 15°C - 100% 0.47kPa
23:00
9.4°C 13°C 14°C - 100% 0.43kPa
Fri, Jul 10
24:00
9.3°C 13°C 14°C - 100% 0.41kPa
01:00
9°C 13°C 14°C - 100% 0.41kPa
02:00
8.9°C 13°C 13°C - 88% 0.4kPa
03:00
8.7°C 12°C 13°C - 60% 0.33kPa
04:00
8.6°C 12°C 12°C - 81% 0.24kPa
05:00
9°C 12°C 12°C - 78% 0.26kPa
06:00
9.5°C 12°C 13°C - 43% 0.34kPa
07:00
9.7°C 12°C 15°C - 70% 0.5kPa
08:00
10°C 12°C 16°C - 74% 0.64kPa
09:00
10°C 13°C 17°C - 70% 0.75kPa
10:00
9.8°C 13°C 18°C - 70% 0.88kPa
11:00
9.8°C 13°C 19°C - 85% 0.97kPa
12:00
9.8°C 13°C 19°C - 64% 1kPa
13:00
9.7°C 14°C 22°C - 62% 1.4kPa
14:00
9.8°C 14°C 22°C - 98% 1.4kPa
15:00
10°C 14°C 20°C - 97% 1.1kPa
16:00
10°C 15°C 21°C - 51% 1.2kPa
17:00
10°C 15°C 22°C - 71% 1.4kPa
18:00
10°C 15°C 22°C - 44% 1.4kPa
19:00
10°C 16°C 22°C - 70% 1.4kPa
20:00
13°C 16°C 21°C - 100% 1kPa
21:00
12°C 16°C 19°C - 100% 0.79kPa
22:00
13°C 15°C 18°C - 100% 0.6kPa
23:00
14°C 15°C 17°C - 100% 0.42kPa
Sat, Jul 11
24:00
14°C 15°C 17°C - 100% 0.26kPa
01:00
15°C 15°C 18°C - 99% 0.34kPa
02:00
15°C 15°C 18°C - 99% 0.43kPa
03:00
15°C 15°C 19°C - 98% 0.53kPa
04:00
15°C 15°C 21°C - 99% 0.75kPa
05:00
14°C 16°C 22°C - 99% 1kPa
06:00
13°C 16°C 23°C - 100% 1.3kPa
07:00
13°C 16°C 23°C - 100% 1.4kPa
08:00
12°C 16°C 24°C - 99% 1.5kPa
09:00
12°C 17°C 24°C - 99% 1.6kPa
10:00
13°C 17°C 23°C - 90% 1.4kPa
11:00
14°C 17°C 23°C - 80% 1.2kPa
12:00
15°C 17°C 22°C - 71% 1kPa
13:00
16°C 17°C 21°C - 56% 0.75kPa
14:00
16°C 17°C 20°C - 40% 0.52kPa
15:00
17°C 17°C 19°C - 25% 0.32kPa
16:00
16°C 17°C 18°C - 25% 0.24kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account