Ben A'an - Morning Frost - Trossachs & Loch Lomond
Frost crystals on calm, cold mornings near sunrise
No Morning Frost opportunities in the next 14 days
Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.
Currently
Real-time conditionsUpcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
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 ruleThis forecast identifies when frost conditions will transform the Trossachs landscape into a winter wonderland. We track overnight temperatures, humidity, and wind to predict when clear, calm nights will produce photogenic frost—hoar frost coating vegetation, ice crystals along shorelines, and frozen lochs creating winter magic.
The Trossachs' Highland fringe position means genuine winter cold while remaining accessible. The combination of lochs, forest, and mountains creates varied frost opportunities, from frozen shorelines to summit hoar frost on Ben A'an.
What makes the Trossachs special for frost photography:
- Loch shorelines - Ice formations at water's edge at Loch Ard and Loch Achray
- Forest frost - Native oak and birch woodland coated in hoar frost creating fairy-tale scenes
- Mountain hoar frost - Ben A'an summit vegetation transformed by ice crystal deposits
- Waterfall ice - Bracklinn Falls near Callander with ice formations and icicles
Loch Ard's forested shoreline after a hard frost creates magical scenes—oak trees coated in hoar frost, ice crystals along the water's edge, frozen grasses catching low winter sunlight. Ben A'an's summit on frosty mornings combines hoar frost with panoramic views across frozen landscape. Bracklinn Falls develops impressive ice formations during cold spells. Best frost photography occurs December-February during high-pressure systems. Timing is critical—frost is most photogenic at sunrise before sun melts the crystals.
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72-hour requirements breakdown
What passed or failed, hour by hourTime Europe/London | Time Window Sunrise -45m to +90m | Frost Probability ≥ 60.0% | Wind Speed ≤ 1.5m/s |
|---|---|---|---|
| Sun, Jun 7 | |||
| 03:00 | ✓ | 0% | 2.1m/s |
| 04:00 | ✓ | 0% | 2.1m/s |
| 05:00 | ✓ | 0% | 1.9m/s |
| 06:00 | ✓ | 0% | 1.7m/s |
| 07:00 | ✕ | 0% | 2.1m/s |
| 08:00 | ✕ | 0% | 1.8m/s |
| 09:00 | ✕ | 0% | 2m/s |
| 10:00 | ✕ | 0% | 3.3m/s |
| 11:00 | ✕ | 0% | 5.4m/s |
| 12:00 | ✕ | 0% | 5.5m/s |
| 13:00 | ✕ | 0% | 5.7m/s |
| 14:00 | ✕ | 0% | 5.7m/s |
| 15:00 | ✕ | 0% | 5.1m/s |
| 16:00 | ✕ | 0% | 4.5m/s |
| 17:00 | ✕ | 0% | 3.2m/s |
| 18:00 | ✕ | 0% | 3.2m/s |
| 19:00 | ✕ | 0% | 2.4m/s |
| 20:00 | ✕ | 0% | 1.4m/s |
| 21:00 | ✕ | 0% | 2.1m/s |
| 22:00 | ✕ | 0% | 2.5m/s |
| 23:00 | ✕ | 0% | 3m/s |
| Mon, Jun 8 | |||
| 24:00 | ✕ | 0% | 4.6m/s |
| 01:00 | ✕ | 0% | 4.3m/s |
| 02:00 | ✕ | 0% | 4.3m/s |
| 03:00 | ✓ | 0% | 2.9m/s |
| 04:00 | ✓ | 0% | 2m/s |
| 05:00 | ✓ | 0% | 2.3m/s |
| 06:00 | ✓ | 0% | 2m/s |
| 07:00 | ✕ | 0% | 2.4m/s |
| 08:00 | ✕ | 0% | 2.7m/s |
| 09:00 | ✕ | 0% | 3.5m/s |
| 10:00 | ✕ | 0% | 4m/s |
| 11:00 | ✕ | 0% | 4.6m/s |
| 12:00 | ✕ | 0% | 5m/s |
| 13:00 | ✕ | 0% | 5.2m/s |
| 14:00 | ✕ | 0% | 5.6m/s |
| 15:00 | ✕ | 0% | 5.6m/s |
| 16:00 | ✕ | 0% | 5.2m/s |
| 17:00 | ✕ | 0% | 4.7m/s |
| 18:00 | ✕ | 0% | 3.7m/s |
| 19:00 | ✕ | 0% | 3.7m/s |
| 20:00 | ✕ | 0% | 3.3m/s |
| 21:00 | ✕ | 0% | 2.2m/s |
| 22:00 | ✕ | 0% | 2.3m/s |
| 23:00 | ✕ | 0% | 1.9m/s |
| Tue, Jun 9 | |||
| 24:00 | ✕ | 0% | 1.6m/s |
| 01:00 | ✕ | 0% | 1.5m/s |
| 02:00 | ✕ | 0% | 1.8m/s |
| 03:00 | ✓ | 0% | 1.8m/s |
| 04:00 | ✓ | 0% | 2m/s |
| 05:00 | ✓ | 0% | 1.9m/s |
| 06:00 | ✓ | 0% | 1.8m/s |
| 07:00 | ✕ | 0% | 1.8m/s |
| 08:00 | ✕ | 0% | 2m/s |
| 09:00 | ✕ | 0% | 2.5m/s |
| 10:00 | ✕ | 0% | 2.6m/s |
| 11:00 | ✕ | 0% | 2.3m/s |
| 12:00 | ✕ | 0% | 2.2m/s |
| 13:00 | ✕ | 0% | 1.8m/s |
| 14:00 | ✕ | 0% | 2.1m/s |
| 15:00 | ✕ | 0% | 2.8m/s |
| 16:00 | ✕ | 0% | 3.9m/s |
| 17:00 | ✕ | 0% | 5m/s |
| 18:00 | ✕ | 0% | 5m/s |
| 19:00 | ✕ | 0% | 4.4m/s |
| 20:00 | ✕ | 0% | 3.4m/s |
| 21:00 | ✕ | 0% | 2.2m/s |
| 22:00 | ✕ | 0% | 1.7m/s |
| 23:00 | ✕ | 0% | 1.6m/s |
| Wed, Jun 10 | |||
| 24:00 | ✕ | 0% | 1.7m/s |
| 01:00 | ✕ | 0% | 1.7m/s |
| 02:00 | ✕ | 0% | 1.5m/s |
| 03:00 | ✓ | 0% | 1.6m/s |
| 04:00 | ✓ | 0% | 1.5m/s |
| 05:00 | ✓ | 1.8% | 1.5m/s |
| 06:00 | ✓ | 1.8% | 1.6m/s |
| 07:00 | ✕ | 1.8% | 1.5m/s |
| 08:00 | ✕ | 1.8% | 1.4m/s |
| 09:00 | ✕ | 2.1% | 1.3m/s |
| 10:00 | ✕ | 2.1% | 1.2m/s |
| 11:00 | ✕ | 2.2% | 1.3m/s |
| 12:00 | ✕ | 3.4% | 1.7m/s |
| 13:00 | ✕ | 3.3% | 2.1m/s |
| 14:00 | ✕ | 0% | 2.3m/s |
| 15:00 | ✕ | 0% | 2.6m/s |
| 16:00 | ✕ | 0% | 2.8m/s |
| 17:00 | ✕ | 0% | 2.6m/s |
| 18:00 | ✕ | 0% | 2.5m/s |
| 19:00 | ✕ | 0% | 2.3m/s |
| 20:00 | ✕ | 0% | 2.1m/s |
| 21:00 | ✕ | 0% | 1.9m/s |
| 22:00 | ✕ | 0% | 1.7m/s |
| 23:00 | ✕ | 0% | 1.4m/s |
| Thu, Jun 11 | |||
| 24:00 | ✕ | 0% | 1.2m/s |
| 01:00 | ✕ | 0% | 0.93m/s |
What does Frost Probability mean?
Inputs that drive the scoreThis 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 8
Sunrise 04:31
Sunset 22:00 | ||||||
| 03:00 ☾ | 8.4°C | 9.4°C | 9°C | - | 100% | 0.05kPa |
| 04:00 ☾ | 7.3°C | 9.4°C | 8.5°C | - | 97% | 0.08kPa |
| 05:00 | 6.8°C | 9.3°C | 7.9°C | - | 100% | 0.08kPa |
| 06:00 | 7°C | 9.2°C | 8°C | - | 82% | 0.07kPa |
| 07:00 | 7.1°C | 9.2°C | 8.7°C | - | 14% | 0.12kPa |
| 08:00 | 5.7°C | 9.1°C | 9.2°C | - | 4% | 0.24kPa |
| 09:00 | 5.1°C | 9.2°C | 10°C | - | 11% | 0.35kPa |
| 10:00 | 3.8°C | 9.2°C | 11°C | - | 19% | 0.5kPa |
| 11:00 | 3.8°C | 9.4°C | 12°C | - | 58% | 0.57kPa |
| 12:00 | 3.9°C | 9.5°C | 12°C | - | 77% | 0.6kPa |
| 13:00 | 4.3°C | 9.6°C | 12°C | - | 91% | 0.58kPa |
| 14:00 | 4.2°C | 9.6°C | 12°C | - | 84% | 0.57kPa |
| 15:00 | 5.5°C | 9.7°C | 12°C | - | 72% | 0.51kPa |
| 16:00 | 5.5°C | 9.9°C | 12°C | - | 86% | 0.47kPa |
| 17:00 | 5.4°C | 10°C | 12°C | - | 94% | 0.5kPa |
| 18:00 | 6°C | 10°C | 11°C | - | 84% | 0.38kPa |
| 19:00 | 7°C | 10°C | 10°C | - | 59% | 0.25kPa |
| 20:00 | 7.3°C | 9.9°C | 9.2°C | - | 45% | 0.14kPa |
| 21:00 | 6.7°C | 9.7°C | 8°C | - | 96% | 0.09kPa |
| 22:00 | 6.4°C | 9.6°C | 7.4°C | - | 100% | 0.06kPa |
| 23:00 ☾ | 6.6°C | 9.6°C | 7.3°C | - | 100% | 0.05kPa |
| Tue, Jun 9
Sunrise 04:31
Sunset 22:00 | ||||||
| 24:00 ☾ | 6.5°C | 9.5°C | 7.2°C | - | 100% | 0.04kPa |
| 01:00 ☾ | 6.6°C | 9.3°C | 7.1°C | - | 100% | 0.04kPa |
| 02:00 ☾ | 6.5°C | 9.2°C | 7°C | - | 100% | 0.03kPa |
| 03:00 ☾ | 6.3°C | 9.2°C | 6.9°C | - | 100% | 0.03kPa |
| 04:00 ☾ | 6.3°C | 9°C | 6.7°C | - | 80% | 0.03kPa |
| 05:00 | 5.6°C | 8.9°C | 6.1°C | - | 23% | 0.03kPa |
| 06:00 | 5.3°C | 8.8°C | 5.8°C | - | 14% | 0.03kPa |
| 07:00 | 6°C | 8.8°C | 7.1°C | - | 15% | 0.07kPa |
| 08:00 | 5.8°C | 8.8°C | 7.9°C | - | 75% | 0.15kPa |
| 09:00 | 6°C | 8.8°C | 8.5°C | - | 76% | 0.17kPa |
| 10:00 | 6.2°C | 8.7°C | 8.9°C | - | 99% | 0.2kPa |
| 11:00 | 5.9°C | 8.8°C | 8.8°C | - | 100% | 0.2kPa |
| 12:00 | 5.9°C | 8.8°C | 8.7°C | - | 100% | 0.2kPa |
| 13:00 | 5.9°C | 8.8°C | 9°C | - | 97% | 0.22kPa |
| 14:00 | 5.5°C | 8.9°C | 9.5°C | - | 77% | 0.28kPa |
| 15:00 | 4.9°C | 8.9°C | 11°C | - | 54% | 0.45kPa |
| 16:00 | 5.4°C | 9.1°C | 12°C | - | 40% | 0.48kPa |
| 17:00 | 4.7°C | 9.2°C | 12°C | - | 21% | 0.55kPa |
| 18:00 | 4.4°C | 9.3°C | 12°C | - | 26% | 0.52kPa |
| 19:00 | 4.8°C | 9.4°C | 11°C | - | 23% | 0.47kPa |
| 20:00 | 5.2°C | 9.4°C | 10°C | - | 99% | 0.37kPa |
| 21:00 | 4.9°C | 9.3°C | 8.2°C | - | 27% | 0.22kPa |
| 22:00 | 3.9°C | 9.2°C | 5.7°C | - | 30% | 0.11kPa |
| 23:00 ☾ | 3.5°C | 8.9°C | 4.7°C | - | 65% | 0.07kPa |
| Wed, Jun 10
Sunrise 04:30
Sunset 22:01 | ||||||
| 24:00 ☾ | 3.4°C | 8.7°C | 4.3°C | - | 100% | 0.05kPa |
| 01:00 ☾ | 3.6°C | 8.5°C | 4.5°C | - | 100% | 0.05kPa |
| 02:00 ☾ | 3.9°C | 8.4°C | 4.8°C | - | 100% | 0.05kPa |
| 03:00 ☾ | 4.1°C | 8.2°C | 5°C | - | 100% | 0.05kPa |
| 04:00 ☾ | 4.4°C | 8.1°C | 5.6°C | - | 100% | 0.08kPa |
| 05:00 | 4.6°C | 8°C | 6.2°C | - | 100% | 0.1kPa |
| 06:00 | 4.9°C | 8°C | 6.4°C | - | 100% | 0.09kPa |
| 07:00 | 5.1°C | 7.9°C | 6.5°C | - | 100% | 0.09kPa |
| 08:00 | 5.1°C | 7.8°C | 6.7°C | - | 98% | 0.1kPa |
| 09:00 | 5.2°C | 7.8°C | 6.9°C | - | 99% | 0.11kPa |
| 10:00 | 5.2°C | 7.8°C | 7.4°C | - | 99% | 0.14kPa |
| 11:00 | 5.3°C | 7.8°C | 7.9°C | - | 78% | 0.18kPa |
| 12:00 | 5.5°C | 7.9°C | 9.1°C | - | 88% | 0.25kPa |
| 13:00 | 5.5°C | 8°C | 9.8°C | - | 78% | 0.31kPa |
| 14:00 | 5.6°C | 8.7°C | 9.1°C | - | 54% | 0.25kPa |
| 15:00 | 5.7°C | 9.4°C | 8.5°C | - | 29% | 0.19kPa |
| 16:00 | 5.7°C | 10°C | 7.8°C | - | 5% | 0.14kPa |
| 17:00 | 5.5°C | 9.9°C | 7.1°C | - | 27% | 0.1kPa |
| 18:00 | 5.3°C | 9.8°C | 6.4°C | - | 48% | 0.07kPa |
| 19:00 | 5.1°C | 9.7°C | 5.7°C | - | 70% | 0.03kPa |
| 20:00 | 5.1°C | 9.5°C | 5.6°C | - | 80% | 0.03kPa |
| 21:00 | 5.1°C | 9.3°C | 5.5°C | - | 90% | 0.02kPa |
| 22:00 | 5.1°C | 9.2°C | 5.4°C | - | 100% | 0.02kPa |
| 23:00 ☾ | 5.6°C | 9.1°C | 6.4°C | - | 100% | 0.05kPa |
| Thu, Jun 11
Sunrise 04:30
Sunset 22:02 | ||||||
| 24:00 ☾ | 6°C | 9°C | 7.3°C | - | 100% | 0.09kPa |
| 01:00 ☾ | 6.4°C | 8.9°C | 8.3°C | - | 100% | 0.13kPa |
| 02:00 ☾ | 7°C | 8.9°C | 8.5°C | - | 100% | 0.11kPa |
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