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Porthmadog (52° 55' N/4° 07' W)
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| Fr 18 | Sa 19 | Su 20 | Mo 21 | Tu 22 | We 23 | Th 24 | Fr 25 | Sa 26 | Su 27 | Mo 28 | Tu 29 | We 30 | Th 31 | |
| Tmin (°C) | 9 | 8 | 9 | 10 | 8 | 9 | 8 | 8 | 8 | 10 | 9 | 6 | 4 | 8 |
| Tmax (°C) | 16 | 14 | 15 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 13 | 12 | 11 | 12 |
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| a.m. | SW 20 | SW 6 | S 30 | SW 16 | SW 15 | SW 11 | S 11 | N 5 | SW 8 | SW 14 | SW 13 | NW 13 | S 8 | SW 24 |
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| S 15 | SW 10 | SW 43 | SW 15 | SW 17 | SW 14 | S 11 | NW 9 | SW 9 | SW 17 | W 17 | NW 12 | S 11 | SW 22 | |
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| SW 19 | S 8 | SW 45 | SW 10 | SW 11 | SW 12 | S 6 | NW 4 | S 10 | SW 21 | W 12 | NW 4 | S 15 | W 15 | |
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| Precipitation (mm) | 16.1 | 1.2 | 30.7 | 13.8 | 10.6 | 0 | 0 | 1.6 | 0 | 3.2 | 7.2 | 0.3 | 2.9 | 21.5 |
| Rain risk | 70 % | 30 % | 95 % | 60 % | 60 % | 35 % | 25 % | 55 % | 45 % | 40 % | 40 % | 55 % | 40 % | 70 % |
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| Sunshine hours (hrs) | 0.0 | 2.6 | 0.5 | 2.6 | 0.5 | 2.0 | 2.0 | 0.5 | 0.0 | 0.5 | 2.0 | 1.9 | 1.9 | 0.5 |
| UV index | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 |
| Sunrise Sunset |
07:49 18:13 |
07:51 18:11 |
07:53 18:09 |
07:54 18:07 |
07:56 18:05 |
07:58 18:03 |
08:00 18:01 |
08:02 17:59 |
08:04 17:57 |
08:05 17:55 |
08:07 17:53 |
08:09 17:51 |
08:11 17:49 |
08:13 17:47 |
Last updated: Fr, 18 Oct, 10:09 BST
(Wind Speed in )
Wind data for guidance only, actually gusts may be considerably higher than those shown.
