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Rule Morning Frost

Morning Frost Forecast for Kilpisjärvi, Finnish Lapland

Kilpisjärvi, Lapland, Finland

Saana fell rises abruptly above Kilpisjärvi’s tundra lake and sparse mountain birch, giving the village stronger alpine relief than most of Finnish Lapland. The nearby Malla reserve opens westward toward the Scandinavian mountain chain and the meeting point of Finland, Sweden, and Norway.

Currently

Real-time conditions
Soil Temperature8.3°C
Dew Point4.8°C (low dew point)
Wind Speed2.0m/s (calm conditions)
Cloud Cover96%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (95-hour forecast)

  • Frost Probability100% of hours
  • Time Window86% of hours
  • Wind Speed76% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Finnish Lapland. The requirements and hourly values below show how those signals apply at Kilpisjärvi.

Explore Morning Frost conditions across Finnish Lapland →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Kilpisjärvi during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
12
recorded matching windows · 70% average confidence
Most frequent recorded start hour

08:00 local time, shared by 5 of 12 matches recorded in the last 365 days.

Most represented month

February, with 8 of 12 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

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
Sun, Aug 23
05:000%2m/s
06:000%2.4m/s
07:000%2.4m/s
08:000%1.9m/s
09:000%1.6m/s
10:000%1.6m/s
11:000%1.7m/s
12:000%1.8m/s
13:000%1.8m/s
14:000%1.9m/s
15:000%2.3m/s
16:000%1.4m/s
17:000%2.1m/s
18:000%2.3m/s
19:000%2.2m/s
20:000%2.5m/s
21:000%2.4m/s
22:000%1.2m/s
23:000%0.66m/s
Mon, Aug 24
24:000%1.2m/s
01:000%2.1m/s
02:000%2.6m/s
03:000%2.8m/s
04:000%2.5m/s
05:000%2.3m/s
06:000%2m/s
07:000%1.4m/s
08:000%1.1m/s
09:000%1.1m/s
10:000%1.4m/s
11:000%1.8m/s
12:000%1.6m/s
13:000%2.1m/s
14:000%2.3m/s
15:000%2.6m/s
16:000%2.5m/s
17:000%2.2m/s
18:000%2.1m/s
19:000%2.2m/s
20:000%1.9m/s
21:000%1.9m/s
22:000%2.3m/s
23:000%1.6m/s
Tue, Aug 25
24:000%1.6m/s
01:000%1.8m/s
02:000%2m/s
03:000%2.2m/s
04:000%2.1m/s
05:000%2.2m/s
06:000%2.5m/s
07:000%2.8m/s
08:000%2.4m/s
09:000%2.2m/s
10:000%2.1m/s
11:000%2.2m/s
12:000%2.2m/s
13:000%2.5m/s
14:000%3.4m/s
15:000%3.8m/s
16:000%4.2m/s
17:000%6.2m/s
18:000%5.2m/s
19:000%5.6m/s
20:000%4.4m/s
21:000%3.7m/s
22:000%3.4m/s
23:000%3.3m/s
Wed, Aug 26
24:000%2.4m/s
01:000%3.2m/s
02:000%3.6m/s
03:001%2.9m/s
04:001.2%2.4m/s
05:001.2%2m/s
06:001.2%1.7m/s
07:001.2%1.7m/s
08:001.4%1.6m/s
09:001.4%1.5m/s
10:001.4%1.2m/s
11:001.4%1.3m/s
12:001.4%1.6m/s
13:001.8%1.7m/s
14:001.8%1.6m/s
15:001.6%1.7m/s
16:001.9%1.6m/s
17:002.2%1.5m/s
18:002.5%1.4m/s
19:0030%1.4m/s
20:0026%1.4m/s
21:0030%1.4m/s
22:0030%0.99m/s
23:0028%0.55m/s
Thu, Aug 27
24:0028%0.1m/s
01:0032%0.36m/s
02:0032%0.62m/s
03:0033%0.88m/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
Mon, Aug 24 Sunrise 05:24 Sunset 21:50
06:00
4.8°C 8.3°C 5.8°C - 96% 0.06kPa
07:00
5.2°C 8.1°C 6.7°C - 70% 0.1kPa
08:00
5.3°C 8.2°C 7.2°C - 68% 0.12kPa
09:00
5.4°C 8.2°C 7.7°C - 93% 0.15kPa
10:00
5.4°C 8.3°C 8°C - 100% 0.18kPa
11:00
5.3°C 8.5°C 8.6°C - 100% 0.22kPa
12:00
5.3°C 8.8°C 9.4°C - 75% 0.29kPa
13:00
5.3°C 9.2°C 10°C - 97% 0.37kPa
14:00
5.2°C 9.6°C 11°C - 68% 0.4kPa
15:00
5.3°C 10°C 11°C - 28% 0.43kPa
16:00
5.5°C 11°C 12°C - 32% 0.49kPa
17:00
5.3°C 11°C 12°C - 100% 0.54kPa
18:00
5.2°C 11°C 13°C - 100% 0.56kPa
19:00
5.9°C 11°C 12°C - 100% 0.45kPa
20:00
5.9°C 11°C 11°C - 100% 0.37kPa
21:00
6.1°C 11°C 10°C - 100% 0.32kPa
22:00
6.3°C 11°C 9.7°C - 100% 0.25kPa
23:00
6.5°C 11°C 9.2°C - 100% 0.19kPa
Tue, Aug 25 Sunrise 05:24 Sunset 21:50
24:00
6.6°C 10°C 9°C - 100% 0.17kPa
01:00
6.6°C 10°C 8.9°C - 100% 0.16kPa
02:00
6.5°C 10°C 8.8°C - 100% 0.16kPa
03:00
6.5°C 10°C 8.8°C - 100% 0.16kPa
04:00
6.3°C 9.9°C 8.6°C - 100% 0.16kPa
05:00
6.2°C 9.7°C 8.5°C - 100% 0.16kPa
06:00
6.1°C 9.6°C 8.3°C - 100% 0.16kPa
07:00
6.1°C 9.5°C 8.2°C - 100% 0.15kPa
08:00
6.1°C 9.4°C 8°C - 100% 0.13kPa
09:00
6.1°C 9.3°C 8.1°C - 100% 0.13kPa
10:00
6.2°C 9.2°C 8.3°C - 100% 0.15kPa
11:00
6.2°C 9.1°C 8.2°C - 100% 0.14kPa
12:00
6.2°C 9.1°C 8.4°C - 100% 0.16kPa
13:00
6.3°C 9.1°C 8.8°C - 100% 0.18kPa
14:00
6.4°C 9.1°C 9.4°C - 100% 0.22kPa
15:00
6.2°C 9.2°C 9.3°C - 100% 0.23kPa
16:00
5.9°C 9.2°C 9.3°C - 100% 0.24kPa
17:00
4.6°C 9.3°C 9.6°C - 100% 0.35kPa
18:00
4.2°C 9.4°C 9.6°C - 100% 0.37kPa
19:00
3.9°C 9.3°C 8.7°C - 80% 0.32kPa
20:00
4.6°C 9.2°C 7.8°C - 100% 0.21kPa
21:00
4.8°C 9.1°C 7.7°C - 100% 0.19kPa
22:00
4.8°C 9°C 7.6°C - 100% 0.18kPa
23:00
5.1°C 8.8°C 7.3°C - 100% 0.14kPa
Wed, Aug 26 Sunrise 05:29 Sunset 21:45
24:00
5.1°C 8.7°C 6.9°C - 100% 0.11kPa
01:00
4.2°C 8.5°C 5.5°C - 100% 0.07kPa
02:00
3.2°C 8.3°C 4°C - 100% 0.04kPa
03:00
2.4°C 8°C 2.9°C - 100% 0.02kPa
04:00
2.5°C 7.7°C 2.8°C - 100% 0.02kPa
05:00
2.9°C 7.4°C 3.3°C - 100% 0.02kPa
06:00
3.2°C 7.2°C 3.7°C - 100% 0.03kPa
07:00
3.4°C 7.1°C 3.9°C - 100% 0.03kPa
08:00
3.5°C 7°C 4°C - 100% 0.03kPa
09:00
3.6°C 6.9°C 4.3°C - 100% 0.04kPa
10:00
3.6°C 6.8°C 4.4°C - 100% 0.05kPa
11:00
3.8°C 6.7°C 4.7°C - 100% 0.05kPa
12:00
3.9°C 6.7°C 4.8°C - 100% 0.06kPa
13:00
3.8°C 6.7°C 4.8°C - 100% 0.06kPa
14:00
3.8°C 6.7°C 4.9°C - 100% 0.07kPa
15:00
3.7°C 6.6°C 4.9°C - 100% 0.07kPa
16:00
3.3°C 6.4°C 4.5°C - 78% 0.07kPa
17:00
2.8°C 6.2°C 4.1°C - 56% 0.07kPa
18:00
2.4°C 6.1°C 3.6°C - 34% 0.07kPa
19:00
2°C 5.7°C 3.1°C - 24% 0.06kPa
20:00
1.6°C 5.4°C 2.5°C - 14% 0.05kPa
21:00
1.2°C 5.1°C 1.9°C - 5% 0.04kPa
22:00
1°C 5°C 1.7°C - 8% 0.03kPa
23:00
0.8°C 4.9°C 1.4°C - 12% 0.03kPa
Thu, Aug 27 Sunrise 05:33 Sunset 21:41
24:00
0.6°C 4.9°C 1.2°C - 15% 0.03kPa
01:00
1.7°C 4.8°C 2.7°C - 16% 0.05kPa
02:00
2.7°C 4.7°C 4.3°C - 16% 0.09kPa
03:00
3.8°C 4.7°C 5.9°C - 16% 0.13kPa
04:00
4°C 4.9°C 6.9°C - 42% 0.18kPa
05:00
4.2°C 5.2°C 7.9°C - 69% 0.24kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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