Skip to content
Rule Morning Frost

Grasmere - Morning Frost - Lake District

Ambleside, England, 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 88% failing
Time Window 83% failing

Currently

Real-time conditions
Soil Temperature10.1°C
Dew Point5.5°C (moderate dew point)
Wind Speed1.1m/s (calm conditions)
Cloud Cover100%

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 the Lake District's enchanting frost photography opportunities. We combine temperature, dewpoint, wind, and humidity data to predict when hoar frost will transform England's most romantic landscapes into glittering winter scenes.

The Lake District's combination of lakes, tarns, and sheltered valleys creates ideal conditions for heavy frost formation. England's naturally high humidity combined with calm, cold nights produces thick hoar frost deposits that coat every surface. The region's intimate scale means frost-covered scenes retain the romantic quality that has drawn artists here for centuries.

What makes the Lake District special for frost photography:

  • Frozen tarns - Small tarns like Tarn Hows freeze solid, creating pristine ice skating scenes
  • Frosted fells - Grasses and bracken on fell sides become forests of ice crystals
  • Lake shore ice - Derwentwater and Windermere develop fascinating ice formations along their shores
  • Romantic compositions - Frost-covered stone walls, bare trees, and winter light evoke Wordsworth's poetry

Tarn Hows becomes a winter jewel when frozen and frost-covered—the small tarn surrounded by frosted woodland creates postcard-perfect scenes. Derwentwater's shores develop intricate ice patterns, particularly in sheltered bays like the view from Friars Crag. Higher tarns like Blea Tarn freeze reliably and hold frost longer, often remaining photogenic well into morning. Frosted bracken on the lower fells catches golden morning light beautifully. The key is arriving at dawn after clear, calm nights—our forecast identifies these conditions and predicts how long frost will persist after sunrise.

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/London
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sun, Jun 14
03:000%1.7m/s
04:000%1.5m/s
05:000%1.5m/s
06:000%1.2m/s
07:000%0.95m/s
08:000%1.1m/s
09:000%1.3m/s
10:000%1.6m/s
11:000%2.2m/s
12:000%2.5m/s
13:000%2.1m/s
14:000%2.2m/s
15:000%2.2m/s
16:000%2.1m/s
17:000%1.9m/s
18:000%1.7m/s
19:000%1.8m/s
20:000%1.3m/s
21:000%1.3m/s
22:000%1.2m/s
23:000%1m/s
Mon, Jun 15
24:000%0.89m/s
01:000%0.99m/s
02:000%1.1m/s
03:000%1.1m/s
04:000%1.1m/s
05:000%1.3m/s
06:000%1.3m/s
07:000%1.3m/s
08:000%1.5m/s
09:000%1.8m/s
10:000%1.8m/s
11:000%2.2m/s
12:000%2.7m/s
13:000%3.1m/s
14:000%3.5m/s
15:000%3.3m/s
16:000%3.4m/s
17:000%2.4m/s
18:000%2m/s
19:000%1.6m/s
20:000%1.7m/s
21:000%1.2m/s
22:000%1.6m/s
23:000%1.6m/s
Tue, Jun 16
24:000%1.4m/s
01:000%1.5m/s
02:000%1.5m/s
03:000%2m/s
04:000%2m/s
05:000%2m/s
06:000%2.4m/s
07:000%2.4m/s
08:000%2.8m/s
09:000%2.9m/s
10:000%3.1m/s
11:000%3.2m/s
12:000%3.4m/s
13:000%3.6m/s
14:000%4.3m/s
15:000%4.8m/s
16:000%4.5m/s
17:000%3.8m/s
18:000%3m/s
19:000%3.3m/s
20:000%3m/s
21:000%2.3m/s
22:000%2.3m/s
23:000%2.7m/s
Wed, Jun 17
24:000%3.6m/s
01:000%4.6m/s
02:000%4.1m/s
03:000%4.1m/s
04:000%3.9m/s
05:000%4.2m/s
06:000%4.1m/s
07:000%3.4m/s
08:000%3.7m/s
09:000%3.7m/s
10:000%2.6m/s
11:000%2.8m/s
12:000%2.6m/s
13:000%2.7m/s
14:000%2.9m/s
15:000%3.1m/s
16:000%3.3m/s
17:000%3.4m/s
18:000%3.5m/s
19:000%3.6m/s
20:000%3.6m/s
21:000%3.6m/s
22:000%3.6m/s
23:000%3.6m/s
Thu, Jun 18
24:000%3.6m/s
01:000%3.7m/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
Mon, Jun 15 Sunrise 04:36 Sunset 21:48
03:00
5.5°C 10°C 6.6°C - 100% 0.07kPa
04:00
5.3°C 9.9°C 6.6°C - 100% 0.08kPa
05:00
5.2°C 9.6°C 6.6°C - 100% 0.09kPa
06:00
6°C 9.5°C 7.7°C - 100% 0.11kPa
07:00
6.4°C 9.5°C 8.8°C - 100% 0.17kPa
08:00
6.9°C 9.5°C 9.9°C - 99% 0.22kPa
09:00
7.2°C 9.6°C 11°C - 96% 0.3kPa
10:00
7.5°C 9.7°C 12°C - 76% 0.4kPa
11:00
8.1°C 10°C 13°C - 100% 0.44kPa
12:00
9.1°C 10°C 14°C - 100% 0.44kPa
13:00
9.9°C 10°C 14°C - 100% 0.42kPa
14:00
10°C 10°C 14°C - 100% 0.38kPa
15:00
11°C 11°C 14°C - 100% 0.35kPa
16:00
11°C 11°C 15°C - 100% 0.37kPa
17:00
12°C 11°C 14°C - 100% 0.28kPa
18:00
12°C 11°C 14°C - 100% 0.21kPa
19:00
12°C 11°C 13°C - 100% 0.12kPa
20:00
12°C 11°C 13°C - 100% 0.11kPa
21:00
11°C 11°C 12°C - 100% 0.1kPa
22:00
11°C 11°C 12°C - 100% 0.09kPa
23:00
11°C 11°C 11°C - 100% 0.05kPa
Tue, Jun 16 Sunrise 04:36 Sunset 21:48
24:00
10°C 11°C 11°C - 100% 0.05kPa
01:00
9.9°C 11°C 10°C - 100% 0.05kPa
02:00
10°C 11°C 11°C - 100% 0.05kPa
03:00
10°C 11°C 11°C - 100% 0.05kPa
04:00
10°C 11°C 11°C - 100% 0.04kPa
05:00
10°C 11°C 10°C - 100% 0.03kPa
06:00
10°C 11°C 10°C - 97% 0.02kPa
07:00
11°C 11°C 11°C - 90% 0.02kPa
08:00
11°C 11°C 12°C - 98% 0.03kPa
09:00
12°C 11°C 12°C - 100% 0.05kPa
10:00
12°C 11°C 13°C - 100% 0.06kPa
11:00
12°C 11°C 13°C - 100% 0.08kPa
12:00
13°C 11°C 14°C - 100% 0.1kPa
13:00
13°C 11°C 16°C - 61% 0.33kPa
14:00
13°C 12°C 17°C - 100% 0.47kPa
15:00
13°C 12°C 17°C - 100% 0.38kPa
16:00
13°C 12°C 16°C - 100% 0.29kPa
17:00
13°C 12°C 15°C - 100% 0.23kPa
18:00
13°C 12°C 14°C - 100% 0.06kPa
19:00
13°C 12°C 13°C - 100% 0.02kPa
20:00
13°C 12°C 13°C - 100% 0.02kPa
21:00
12°C 12°C 12°C - 100% 0.02kPa
22:00
12°C 12°C 12°C - 100% 0.01kPa
23:00
12°C 12°C 12°C - 100% 0.01kPa
Wed, Jun 17 Sunrise 04:36 Sunset 21:48
24:00
13°C 12°C 13°C - 100% 0.01kPa
01:00
13°C 12°C 13°C - 100% 0.02kPa
02:00
12°C 12°C 12°C - 100% 0.02kPa
03:00
12°C 12°C 12°C - 100% 0.03kPa
04:00
12°C 12°C 12°C - 100% 0.02kPa
05:00
12°C 12°C 13°C - 100% 0.02kPa
06:00
12°C 12°C 13°C - 100% 0.02kPa
07:00
12°C 12°C 13°C - 100% 0.02kPa
08:00
13°C 12°C 13°C - 100% 0.02kPa
09:00
12°C 12°C 12°C - 100% 0.02kPa
10:00
12°C 12°C 12°C - 99% 0.01kPa
11:00
13°C 12°C 13°C - 100% 0.04kPa
12:00
13°C 12°C 13°C - 100% 0.02kPa
13:00
13°C 12°C 13°C - 100% 0.04kPa
14:00
12°C 12°C 13°C - 100% 0.05kPa
15:00
12°C 12°C 13°C - 100% 0.07kPa
16:00
12°C 13°C 12°C - 100% 0.08kPa
17:00
12°C 12°C 12°C - 100% 0.07kPa
18:00
11°C 12°C 12°C - 100% 0.05kPa
19:00
11°C 12°C 12°C - 100% 0.04kPa
20:00
11°C 12°C 12°C - 100% 0.03kPa
21:00
11°C 12°C 12°C - 100% 0.03kPa
22:00
11°C 12°C 11°C - 100% 0.02kPa
23:00
11°C 12°C 12°C - 100% 0.02kPa
Thu, Jun 18 Sunrise 04:36 Sunset 21:49
24:00
11°C 12°C 12°C - 100% 0.03kPa
01:00
11°C 12°C 12°C - 100% 0.03kPa
02:00
11°C 12°C 12°C - 87% 0.11kPa
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