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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Pen-y-Fan at 886 m altitude
Issued by Snow-Forecast.com at: 11 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  |  |  | |  |  |  | | | | | | |
mod. rain | mod. rain | snow shwrs | rain shwrs | clear | some clouds | some clouds | light rain | heavy rain | mod. rain | light snow | light snow | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | |
9 | 6 | 2 | 2 | — | — | — | 4 | 11 | 8 | — | — | — | — | — | — | — | — | |
max °C | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
min °C | 5 | 4 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
0 | -3 | -6 | -5 | -4 | -4 | -5 | -5 | -5 | -5 | -6 | -9 | -6 | -4 | -6 | -6 | -6 | -7 | |
82 | 96 | 74 | 84 | 79 | 83 | 78 | 93 | 98 | 99 | 88 | 94 | 90 | 83 | 78 | 67 | 71 | 93 | |
1700 | 1800 | 1100 | 1200 | 1250 | 1250 | 1200 | 1200 | 1200 | 1300 | 1150 | 1050 | 800 | 1050 | 1050 | 950 | 1050 | 900 | |
 | 8:15 | — | — | 8:17 | — | — | 8:18 | — | — | 8:18 | — | — | 8:18 | — | — | 8:18 | — | — |
 | — | 4:02 | — | — | 4:02 | — | — | 4:04 | — | — | 4:04 | — | — | 4:05 | — | — | 4:05 | — |
Next 0-3 days weather summary:
Heavy rain (total 34.0mm), heaviest during Thu morning. Mild temperatures (max 5°C on Thu morning, min 1°C on Thu night). Winds decreasing (near gales from the SW on Thu afternoon, light winds from the SSE by Sat night).
Next 4-6 days weather summary:
Light rain (total 8.0mm) at first, then becoming colder with a dusting of snow on Sun afternoon. Freeze-thaw conditions (max 3°C on Sun morning, min 0°C on Sun night). Winds decreasing (near gales from the SE on Sun night, light winds from the S by Mon afternoon).
Popular Pen-y-Fan Pages
Snow Radar
Latest snow reports near Pen-y-Fan:
Pen-y-Fan Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 16 Apr 2025 |
| Snow Alerts | Create Alert |
Other resorts in United Kingdom are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
Pen-y-Fan Forecast Snowfall
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Photos of Pen-y-Fan
Early December Snow in the Brecon Beacons by Nick Russill
Crisp cold conditions by Brett
Gap Route by Nick Russill
Upload new photo Other resorts in United Kingdom are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Pen-y-Fan at the specific elevation of 886 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Pen-y-Fan. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of United Kingdom.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Pen-y-Fan
- Brian Simpson from Ireland writes:
Reading the stories of great but rare days out boarding, skiing and sledding on the Brecon slopes, amazing as it is such a similar story to the Comeragh and Knockmealdown mountains a couple of hundred miles west in South East Ireland where on occasion there has been some fun adventures meeting ski and boarders in the most unlikely places all united by our love of snow. I would love to see this excellent site cover the few slopes we have so that you guys in Wales can read of similar experiences of snow days on your sister ranges to your west.
Visitor Reviews of Pen-y-Fan
Brian Simpson from Ireland writes:
Reading the stories of great but rare days out boarding, skiing and sledding on the Brecon slopes, amazing as it is such a similar story to the Comeragh and Knockmealdown mountains a couple of hundred miles west in South East Ireland where on occasion there has been some fun adventures meeting ski and boarders in the most unlikely places all united by our love of snow. I would love to see this excellent site cover the few slopes we have so that you guys in Wales can read of similar experiences of snow days on your sister ranges to your west.
Nearest