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Porthmadog (52° 55' N/4° 07' W)
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| Mo 30 | Tu 01 | We 02 | Th 03 | Fr 04 | Sa 05 | Su 06 | Mo 07 | Tu 08 | We 09 | Th 10 | Fr 11 | Sa 12 | Su 13 | |
| Tmin (°C) | 10 | 9 | 9 | 4 | 9 | 11 | 12 | 8 | 8 | 7 | 6 | 6 | 3 | 5 |
| Tmax (°C) | 13 | 15 | 15 | 15 | 15 | 16 | 15 | 13 | 13 | 12 | 11 | 12 | 11 | 11 |
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| a.m. | NE 3 | NE 3 | NE 6 | E 2 | SW 9 | SW 9 | SW 15 | SW 11 | W 9 | SW 10 | W 9 | N 6 | NE 6 | E 4 |
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| W 6 | N 4 | NE 4 | S 4 | S 9 | SW 11 | SW 14 | SW 10 | W 10 | SW 10 | W 7 | NW 7 | W 8 | SW 5 | |
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| W 5 | NE 3 | NE 3 | S 3 | S 9 | SW 14 | SW 11 | S 6 | W 7 | W 8 | NW 5 | N 6 | E 5 | NE 8 | |
| Gusts (mph) | 37 | |||||||||||||
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| Precipitation (mm) | 20.3 | 1.6 | 0 | 0 | 4.4 | 16.1 | 31 | 16.2 | 14.2 | 12 | 6.3 | 3 | 0 | 0 |
| Rain risk | 70 % | 35 % | 20 % | 5 % | 55 % | 75 % | 95 % | 75 % | 75 % | 60 % | 60 % | 55 % | 40 % | 35 % |
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| Sunshine hours (hrs) | 0.0 | 1.7 | 3.4 | 6.9 | 1.1 | 0.6 | 0.6 | 1.1 | 0.6 | 1.6 | 1.6 | 2.7 | 1.6 | 1.6 |
| UV index | 1 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 2 |
| Sunrise Sunset |
07:17 18:55 |
07:19 18:52 |
07:21 18:50 |
07:22 18:48 |
07:24 18:45 |
07:26 18:43 |
07:28 18:40 |
07:29 18:38 |
07:31 18:36 |
07:33 18:33 |
07:35 18:31 |
07:36 18:29 |
07:38 18:27 |
07:40 18:24 |
Last updated: Su, 29 Sep, 22:25 BST
(Wind Speed in mph)
Wind data for guidance only, actually gusts may be considerably higher than those shown.
