Skip to content
✨ New: PhotoWeather is now available on iOS and Android
Rule Morning Frost

Thirlmere - Morning Frost - Lake District

Penrith, 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 100% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature6.2°C
Dew Point3.7°C (low dew point)
Wind Speed9.7m/s (moderate winds)
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, Feb 22
02:001%3.8m/s
03:001.7%4m/s
04:001.5%4.5m/s
05:001.4%3.2m/s
06:001.4%3.5m/s
07:001.4%3.7m/s
08:002.3%5.5m/s
09:001.3%7.1m/s
10:002.4%8.3m/s
11:002%9.6m/s
12:002.8%9.9m/s
13:003.3%9.6m/s
14:003.7%8.9m/s
15:001.3%8.8m/s
16:001.3%8.3m/s
17:001.3%8.6m/s
18:001.3%8.4m/s
19:002%8.9m/s
20:001.3%8.7m/s
21:002.4%8.7m/s
22:002%8.8m/s
23:001.7%8.5m/s
Mon, Feb 23
24:001.1%8.9m/s
01:001.3%9.6m/s
02:001.3%9.7m/s
03:001.3%9.6m/s
04:001.3%9.6m/s
05:001.3%9.5m/s
06:0014%9.2m/s
07:0014%9.4m/s
08:0014%9.1m/s
09:0014%9m/s
10:0014%9.3m/s
11:0014%9.3m/s
12:002.1%9.1m/s
13:002.6%8.5m/s
14:002.6%8.4m/s
15:003%7.5m/s
16:001.4%6.2m/s
17:001.5%4.9m/s
18:001.4%3.2m/s
19:001.2%2.8m/s
20:001.2%2.2m/s
21:001.2%2.4m/s
22:001%3.2m/s
23:000.8%4.4m/s
Tue, Feb 24
24:000.8%5.1m/s
01:000.8%5.2m/s
02:000.8%4.7m/s
03:000.8%4.5m/s
04:001.4%3.6m/s
05:001.2%4.6m/s
06:001.2%4.3m/s
07:001.4%3.9m/s
08:001.4%3.6m/s
09:001.7%3.9m/s
10:001.7%4.1m/s
11:003.2%5.1m/s
12:002.6%5.8m/s
13:003.1%5.6m/s
14:002.6%5.6m/s
15:002.6%5.2m/s
16:000%5.3m/s
17:000%5m/s
18:001.5%4.3m/s
19:001.5%4.2m/s
20:001.7%4.1m/s
21:001.4%4.1m/s
22:001.2%4.3m/s
23:001.5%4.8m/s
Wed, Feb 25
24:001.4%3.6m/s
01:001.4%3.5m/s
02:001.4%3.9m/s
03:001.4%4m/s
04:001.4%4.1m/s
05:001.4%3.9m/s
06:001.4%3.8m/s
07:001%3.9m/s
08:001%3.9m/s
09:001%4m/s
10:001%4m/s
11:001%4m/s
12:001%4.1m/s
13:001%4.1m/s
14:001%4m/s
15:001%4m/s
16:000.8%4.2m/s
17:000.8%4.5m/s
18:000.8%4.7m/s
19:000.8%5.2m/s
20:000.6%5.8m/s
21:000.6%6.3m/s
22:000.6%6.4m/s
23:000.6%6.5m/s
Thu, Feb 26
24:000.6%6.6m/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, Feb 23 Sunrise 07:15 Sunset 17:34
02:00
3.7°C 6.2°C 5.7°C - 100% 0.12kPa
03:00
3.8°C 6.2°C 5.8°C - 100% 0.12kPa
04:00
3.7°C 6.1°C 5.9°C - 100% 0.13kPa
05:00
3.9°C 6°C 5.9°C - 100% 0.12kPa
06:00
3.6°C 6°C 6°C - 98% 0.14kPa
07:00
3.7°C 5.9°C 6°C - 100% 0.14kPa
08:00
3.7°C 5.9°C 6°C - 100% 0.14kPa
09:00
3.6°C 5.9°C 6.6°C - 100% 0.18kPa
10:00
3.8°C 5.9°C 6.5°C - 100% 0.17kPa
11:00
4.3°C 6°C 7.3°C - 100% 0.19kPa
12:00
4.5°C 6.1°C 7.6°C - 100% 0.2kPa
13:00
4.7°C 6.2°C 7.8°C - 99% 0.21kPa
14:00
5.1°C 6.4°C 8.5°C - 82% 0.23kPa
15:00
5.3°C 6.5°C 8.5°C - 55% 0.22kPa
16:00
5.4°C 6.7°C 8.1°C - 69% 0.18kPa
17:00
5.2°C 6.7°C 7.4°C - 93% 0.15kPa
18:00
5.3°C 6.6°C 6.6°C - 100% 0.09kPa
19:00
5.8°C 6.5°C 6.8°C - 100% 0.07kPa
20:00
6.2°C 6.5°C 7°C - 100% 0.05kPa
21:00
6.2°C 6.5°C 6.8°C - 100% 0.04kPa
22:00
6.2°C 6.5°C 6.8°C - 100% 0.04kPa
23:00
6.4°C 6.5°C 6.9°C - 100% 0.03kPa
Tue, Feb 24 Sunrise 07:12 Sunset 17:36
24:00
6.8°C 6.5°C 7.1°C - 100% 0.02kPa
01:00
6.9°C 6.5°C 7.2°C - 100% 0.02kPa
02:00
7.3°C 6.6°C 7.6°C - 100% 0.02kPa
03:00
7.7°C 6.6°C 8°C - 100% 0.02kPa
04:00
7.1°C 6.7°C 8.3°C - 100% 0.09kPa
05:00
5.4°C 6.6°C 6.6°C - 100% 0.08kPa
06:00
4.7°C 6.5°C 6.1°C - 100% 0.09kPa
07:00
4.6°C 6.3°C 6.3°C - 100% 0.1kPa
08:00
5.2°C 6.2°C 6.8°C - 100% 0.1kPa
09:00
5.9°C 6.2°C 7.9°C - 100% 0.13kPa
10:00
6.2°C 6.4°C 9.1°C - 98% 0.2kPa
11:00
6.2°C 6.7°C 9.9°C - 51% 0.27kPa
12:00
5.8°C 7°C 10°C - 100% 0.34kPa
13:00
5.5°C 7.3°C 11°C - 39% 0.42kPa
14:00
5.5°C 7.6°C 11°C - 95% 0.44kPa
15:00
5.6°C 7.9°C 11°C - 99% 0.42kPa
16:00
5.9°C 8°C 11°C - 91% 0.35kPa
17:00
5.9°C 8°C 9.4°C - 91% 0.25kPa
18:00
5.6°C 7.9°C 8.1°C - 100% 0.18kPa
19:00
5.6°C 7.8°C 7.9°C - 100% 0.15kPa
20:00
6.2°C 7.6°C 7.9°C - 100% 0.11kPa
21:00
6.5°C 7.5°C 7.7°C - 100% 0.09kPa
22:00
6.5°C 7.4°C 7.9°C - 100% 0.09kPa
23:00
6.3°C 7.4°C 8.7°C - 100% 0.17kPa
Wed, Feb 25 Sunrise 07:10 Sunset 17:38
24:00
6.1°C 7.3°C 7.4°C - 100% 0.08kPa
01:00
5.9°C 7.2°C 6.9°C - 100% 0.07kPa
02:00
5.9°C 7.1°C 7.1°C - 100% 0.08kPa
03:00
5.6°C 7°C 6.9°C - 100% 0.08kPa
04:00
5.4°C 6.8°C 6.6°C - 100% 0.08kPa
05:00
5.5°C 6.7°C 6.7°C - 100% 0.07kPa
06:00
5.3°C 6.6°C 6.3°C - 100% 0.06kPa
07:00
6.1°C 6.6°C 6.8°C - 100% 0.05kPa
08:00
6.9°C 6.6°C 7.3°C - 100% 0.03kPa
09:00
7.6°C 6.6°C 7.8°C - 100% 0.01kPa
10:00
7.7°C 6.7°C 7.9°C - 100% 0.01kPa
11:00
7.8°C 6.7°C 8°C - 100% 0.01kPa
12:00
7.9°C 6.8°C 8.1°C - 100% 0.01kPa
13:00
7.8°C 6.9°C 8°C - 100% 0.01kPa
14:00
7.7°C 6.9°C 7.9°C - 100% 0.01kPa
15:00
7.5°C 7°C 7.8°C - 100% 0.01kPa
16:00
7.2°C 7°C 7.5°C - 100% 0.02kPa
17:00
6.9°C 6.9°C 7.3°C - 100% 0.02kPa
18:00
6.6°C 6.9°C 7°C - 100% 0.03kPa
19:00
6.6°C 6.9°C 7°C - 100% 0.03kPa
20:00
6.6°C 6.8°C 7°C - 100% 0.02kPa
21:00
6.6°C 6.8°C 6.9°C - 100% 0.02kPa
22:00
6.5°C 6.8°C 6.9°C - 100% 0.02kPa
23:00
6.5°C 6.7°C 6.9°C - 100% 0.03kPa
Thu, Feb 26 Sunrise 07:08 Sunset 17:40
24:00
6.4°C 6.7°C 6.9°C - 100% 0.03kPa
01:00
6°C 6.6°C 6.7°C - 96% 0.05kPa
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