Skip to content
Rule Morning Frost

Scottish Highlands - Morning Frost - Scotland

Scotland, United Kingdom

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)
Frost Probability 100% failing
Wind Speed 89% failing
Time Window 83% failing

Currently

Real-time conditions
Soil Temperature10.6°C
Dew Point9.2°C (moderate dew point)
Wind Speed4.2m/s (calm conditions)
Cloud Cover80%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

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 conditions that create Scotland's dramatic frost photography opportunities. We combine temperature, dewpoint, wind, and humidity data to predict when hoar frost will form across Highland landscapes.

The Scottish Highlands offer exceptional frost photography from November through March. Cold clear nights combined with Scotland's naturally high humidity create heavy hoar frost formations that transform heather moorlands, frozen lochs, and mountain valleys into winter wonderlands. The dramatic Highland topography means frost conditions vary by elevation and exposure, creating diverse opportunities.

What makes Scotland special for frost photography:

  • Highland hoar frost - Heavy frost deposits on heather create sparkling purple-white moorlands
  • Frozen lochs - Ice formations along loch shores, particularly in the Cairngorms
  • Mountain ice crystals - High Cairngorms peaks develop spectacular rime ice formations
  • Glen Coe frost - The famous valley transformed by frost on grass and bracken

Rannoch Moor becomes otherworldly under heavy frost—the vast peatland plateau covered in sparkling crystals with distant peaks beyond. The Cairngorms' high elevation means consistent frost formation, with frozen pools and ice-covered grasses creating miniature landscapes. Glen Coe's dramatic valley takes on ethereal beauty when frost transforms the bracken-covered slopes. Frozen lochs like Loch an Eilein develop fascinating ice patterns along their shores. The key is clear, calm nights following cold days—our forecast identifies these conditions and tracks morning visibility to ensure you can capture the frost before it melts.

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 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sun, May 24
05:000%3.6m/s
06:000%3.7m/s
07:000%3.7m/s
08:000%3.8m/s
09:000%3.9m/s
10:000%4.6m/s
11:000%4.5m/s
12:000%4.3m/s
13:000%4.5m/s
14:000%4.2m/s
15:000%4.5m/s
16:000%4.2m/s
17:000%3.9m/s
18:000%2.6m/s
19:000%2.5m/s
20:000%2.2m/s
21:000%2.2m/s
22:000%2.8m/s
23:000%2.8m/s
Mon, May 25
24:000%3.1m/s
01:000%3.3m/s
02:000%3m/s
03:000%3m/s
04:000%3m/s
05:000%3.2m/s
06:000%3.1m/s
07:000%3.5m/s
08:000%4.2m/s
09:000%5.4m/s
10:000%5.5m/s
11:000%6.3m/s
12:000%6.3m/s
13:000%5.3m/s
14:000%4.5m/s
15:000%3.9m/s
16:000%3.5m/s
17:000%2.8m/s
18:000%2.2m/s
19:000%2.3m/s
20:000%2.5m/s
21:000%2m/s
22:000%1.8m/s
23:000%1.7m/s
Tue, May 26
24:000%1.5m/s
01:000%1.7m/s
02:000%1.7m/s
03:000%1.3m/s
04:000%1.3m/s
05:000%1.2m/s
06:000%1m/s
07:000%0.91m/s
08:000%1.3m/s
09:000%1.5m/s
10:000%1.6m/s
11:000%1.8m/s
12:000%2.2m/s
13:000%2.8m/s
14:000%3.1m/s
15:000%3.1m/s
16:000%3.1m/s
17:000%3.4m/s
18:000%2.5m/s
19:000%1.5m/s
20:000%1.7m/s
21:000%2m/s
22:000%2.3m/s
23:000%2.2m/s
Wed, May 27
24:000%2.1m/s
01:000%2m/s
02:000%2m/s
03:000%2.1m/s
04:000%2.2m/s
05:000%2.3m/s
06:000%2.5m/s
07:000%2.6m/s
08:000%2.9m/s
09:000%3.2m/s
10:000%3.4m/s
11:000%3.3m/s
12:000%3.1m/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/London
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Sun, May 24 Sunrise 04:42 Sunset 21:44
14:00
9.2°C 11°C 12°C - 80% 0.26kPa
15:00
9.3°C 11°C 14°C - 83% 0.38kPa
16:00
9.1°C 11°C 14°C - 95% 0.41kPa
17:00
8.9°C 11°C 13°C - 100% 0.39kPa
18:00
9°C 11°C 13°C - 100% 0.35kPa
19:00
9.2°C 12°C 13°C - 99% 0.37kPa
20:00
9.7°C 12°C 13°C - 61% 0.31kPa
21:00
9.7°C 12°C 12°C - 52% 0.23kPa
22:00
9.4°C 11°C 11°C - 58% 0.15kPa
23:00
9.4°C 11°C 11°C - 79% 0.13kPa
Mon, May 25 Sunrise 04:42 Sunset 21:44
24:00
9.5°C 11°C 11°C - 16% 0.12kPa
01:00
9°C 11°C 9.7°C - 5% 0.06kPa
02:00
8.6°C 11°C 9.2°C - 4% 0.04kPa
03:00
8.3°C 10°C 8.8°C - 90% 0.04kPa
04:00
8°C 10°C 8.4°C - 78% 0.03kPa
05:00
7.9°C 9.9°C 8.3°C - 83% 0.03kPa
06:00
8.4°C 9.8°C 9°C - 79% 0.04kPa
07:00
9°C 9.8°C 11°C - 5% 0.13kPa
08:00
9°C 9.9°C 13°C - 17% 0.33kPa
09:00
9.1°C 10°C 14°C - 98% 0.47kPa
10:00
9.1°C 10°C 14°C - 65% 0.47kPa
11:00
9.5°C 11°C 16°C - 82% 0.59kPa
12:00
9.7°C 11°C 16°C - 100% 0.56kPa
13:00
9.8°C 11°C 15°C - 100% 0.47kPa
14:00
9.8°C 12°C 14°C - 100% 0.44kPa
15:00
9.7°C 12°C 14°C - 100% 0.41kPa
16:00
9.8°C 12°C 14°C - 100% 0.35kPa
17:00
10°C 12°C 13°C - 100% 0.25kPa
18:00
9.9°C 12°C 12°C - 100% 0.22kPa
19:00
9.8°C 12°C 13°C - 70% 0.25kPa
20:00
9.3°C 12°C 13°C - 34% 0.29kPa
21:00
9.5°C 12°C 11°C - 15% 0.14kPa
22:00
8.7°C 11°C 9.6°C - 42% 0.07kPa
23:00
8.6°C 11°C 9.2°C - 24% 0.05kPa
Tue, May 26 Sunrise 04:40 Sunset 21:46
24:00
8.2°C 11°C 8.8°C - 6% 0.04kPa
01:00
7.8°C 11°C 8.3°C - 20% 0.04kPa
02:00
7.5°C 10°C 8.1°C - 13% 0.04kPa
03:00
6.9°C 10°C 7.6°C - 10% 0.05kPa
04:00
6.6°C 9.7°C 7.5°C - 56% 0.06kPa
05:00
6.5°C 9.5°C 7.6°C - 5% 0.07kPa
06:00
6.8°C 9.3°C 8.3°C - 33% 0.11kPa
07:00
6.9°C 9.4°C 10°C - 48% 0.24kPa
08:00
6.1°C 9.6°C 12°C - 42% 0.42kPa
09:00
5.2°C 9.9°C 13°C - 80% 0.63kPa
10:00
4.9°C 10°C 14°C - 25% 0.75kPa
11:00
4.3°C 11°C 15°C - 26% 0.92kPa
12:00
4.8°C 11°C 16°C - 61% 1kPa
13:00
5.3°C 12°C 17°C - 30% 1kPa
14:00
5.9°C 12°C 17°C - 7% 1.1kPa
15:00
6.3°C 13°C 18°C - 44% 1.1kPa
16:00
6.5°C 13°C 18°C - 67% 1.1kPa
17:00
6.6°C 14°C 17°C - 94% 0.99kPa
18:00
6.5°C 14°C 16°C - 99% 0.89kPa
19:00
7°C 14°C 16°C - 81% 0.79kPa
20:00
6.7°C 13°C 13°C - 87% 0.52kPa
21:00
6.1°C 12°C 10°C - 93% 0.32kPa
22:00
5.1°C 12°C 7.6°C - 99% 0.17kPa
23:00
5.2°C 11°C 7.9°C - 99% 0.18kPa
Wed, May 27 Sunrise 04:39 Sunset 21:48
24:00
5.2°C 11°C 8.1°C - 100% 0.19kPa
01:00
5.2°C 11°C 8.3°C - 100% 0.21kPa
02:00
6°C 11°C 10°C - 96% 0.29kPa
03:00
6.7°C 11°C 12°C - 92% 0.4kPa
04:00
7.3°C 11°C 14°C - 87% 0.53kPa
05:00
7.8°C 12°C 15°C - 64% 0.63kPa
06:00
8.2°C 12°C 16°C - 40% 0.75kPa
07:00
8.5°C 13°C 18°C - 17% 0.89kPa
08:00
8.9°C 13°C 18°C - 21% 0.89kPa
09:00
9.3°C 14°C 18°C - 25% 0.89kPa
10:00
9.6°C 14°C 18°C - 29% 0.89kPa
11:00
9.8°C 14°C 17°C - 21% 0.79kPa
12:00
9.9°C 14°C 17°C - 13% 0.69kPa
13:00
10°C 15°C 16°C - 5% 0.6kPa
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