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Porthmadog Weather forecast
| Fr 26 | Sa 27 | Su 28 | Mo 29 | Tu 30 | We 01 | Th 02 | Fr 03 | |
| Tmax (°C) | 11 | 11 | 12 | 12 | 14 | 17 | 17 | 18 |
| Tmin (°C) | 0 | 4 | 3 | 7 | 7 | 7 | 8 | 9 |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
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| Rain risk | 40 % | 35 % | 30 % | 70 % | 60 % | 30 % | 20 % | 15 % |
| Sunshine hours |  |
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| (hrs) | 7.4 | 5.2 | 8.2 | 0.7 | 2.2 | 3.8 | 4.5 | 8.3 |
| UV index | 5 | 5 | 5 | 3 | 4 | 4 | 4 | 5 |
| Sunrise Sunset |
05:53 20:36 |
05:51 20:38 |
05:49 20:40 |
05:47 20:42 |
05:45 20:44 |
05:43 20:45 |
05:41 20:47 |
05:39 20:49 |
| Wind p.m. |  |
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| Bft | E 2 | NE 3 | W 2-3 | S 3 | SE 3 | NE 1-2 | NE 2 | N 2-3 |
Last updated: Fri 26 Apr 14:47 NZST
| Nearby Forecast Locations - Porthmadog | Distance |
| Snowdonia | 15.0 km |
| Llyn Trawsfynydd | 15.0 km |
| Caernarfon | 19.3 km |
| Gwynedd | 21.7 km |
| Harlech | 22.4 km |
| Menai Bridge | 24.5 km |
| Barmouth | 31.6 km |
| Raf Mona | 33.7 km |
| Bala Lake | 33.9 km |
| Abersoch | 34.6 km |
| Conwy | 35.7 km |
| Bala | 36.4 km |
| Llyn Brenig | 39.0 km |
| Holyhead | 41.0 km |
| Llŷn Peninsula | 42.2 km |
| Llangollen | 45.0 km |
| Colwyn Bay | 45.8 km |
| Aberdaron | 49.9 km |
| Lake Vyrnwy | 49.9 km |
| Machynlleth | 54.2 km |
| Newtown | 77.5 km |
