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Porthmadog (52° 55' N/4° 07' W)
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| Mo 05 | Tu 06 | We 07 | Th 08 | Fr 09 | Sa 10 | Su 11 | Mo 12 | Tu 13 | We 14 | Th 15 | Fr 16 | Sa 17 | Su 18 | |
| Tmin (°F) | 62 | 53 | 55 | 57 | 59 | 57 | 57 | 55 | 51 | 55 | 57 | 53 | 51 | 51 |
| Tmax (°F) | 68 | 64 | 62 | 64 | 64 | 64 | 71 | 66 | 66 | 64 | 62 | 62 | 60 | 62 |
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| a.m. | SW 11 | SW 10 | SW 13 | SW 9 | W 12 | SW 15 | SW 3 | NW 8 | SW 6 | SW 10 | SW 12 | W 9 | SW 12 | SW 11 |
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| SW 10 | SW 14 | SW 14 | SW 9 | SW 13 | SW 11 | SW 7 | NW 8 | S 10 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | |
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| SW 12 | SW 12 | SW 10 | SW 12 | SW 10 | SW 7 | S 4 | NW 6 | S 6 | SW 11 | SW 10 | SW 8 | SW 8 | SW 10 | |
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| Precipitation (mm) | 11.9 | 2.1 | 5.4 | 10.6 | 1.1 | 9.9 | 0 | 2.1 | 3 | 11.1 | 17.2 | 9.1 | 7.3 | 10.5 |
| Rain risk | 80 % | 60 % | 75 % | 80 % | 55 % | 85 % | 35 % | 55 % | 55 % | 85 % | 85 % | 60 % | 60 % | 75 % |
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| Sunshine hours (hrs) | 0.0 | 8.4 | 3.8 | 0.0 | 6.0 | 0.8 | 3.7 | 3.7 | 4.5 | 2.2 | 1.5 | 3.7 | 4.4 | 2.2 |
| UV index | 4 | 5 | 4 | 3 | 4 | 3 | 5 | 4 | 4 | 4 | 3 | 4 | 5 | 3 |
| Sunrise Sunset |
05:42 21:02 |
05:44 21:00 |
05:45 20:58 |
05:47 20:56 |
05:49 20:54 |
05:50 20:52 |
05:52 20:50 |
05:54 20:48 |
05:55 20:46 |
05:57 20:44 |
05:59 20:42 |
06:00 20:40 |
06:02 20:38 |
06:04 20:36 |
Last updated: Mon 05 Aug 10:56 EDT
(Wind Speed in mph)
Wind data for guidance only, actually gusts may be considerably higher than those shown.
