What is climate change?
Climate change refers to a large-scale, long-term shift in the planet's weather patterns and average temperatures.
Read morePorth Tywyn Mawr (Sandy Beach) weather
Today (21 September 2019)
| Time | Now | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | <5% | <5% | <5% | 10% | 10% | <5% | 10% | 50% |
| Temperature (°C) |
25°
|
23°
|
22°
|
20°
|
20°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) | 21° | 20° | 19° | 18° | 18° | 17° | 17° | 17° |
| Wind direction and speed (mph) | SSE 18 | SSE 17 | SE 15 | SE 11 | SE 11 | SE 11 | SE 11 | SE 12 |
| Wind gust (mph) | 27 | 28 | 27 | 24 | 24 | 24 | 24 | 24 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 48% | 53% | 59% | 64% | 66% | 68% | 68% | 70% |
| UV | 2 | 1 | 1 | 1 | - | - | - | - |
Sunday (22 September 2019)
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
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| Weather symbol |
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| Chance of precipitation | 20% | 60% | 40% | <5% | <5% | 10% | 10% | 10% | 10% | 80% | 80% | 80% | 90% | 60% | 20% | 20% | 10% | 10% | <5% | 10% | <5% | <5% | 10% | <5% |
| Temperature (°C) |
19°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
18°
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17°
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17°
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16°
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16°
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16°
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16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) | 17° | 17° | 17° | 17° | 16° | 16° | 16° | 16° | 16° | 16° | 15° | 14° | 14° | 15° | 15° | 14° | 14° | 14° | 14° | 14° | 14° | 14° | 14° | 14° |
| Wind direction and speed (mph) | SE 12 | SE 10 | SE 9 | SE 9 | SE 10 | SE 11 | SE 11 | ESE 10 | ESE 9 | SE 10 | S 12 | SSW 15 | SSW 11 | SW 9 | SSW 9 | SSW 11 | SSW 12 | SSW 13 | SSW 12 | SSW 12 | S 11 | S 11 | S 11 | SW 11 |
| Wind gust (mph) | 24 | 19 | 18 | 18 | 20 | 21 | 21 | 18 | 16 | 17 | 19 | 21 | 17 | 12 | 13 | 15 | 17 | 18 | 17 | 17 | 17 | 17 | 16 | 15 |
| Visibility | G | VG | VG | VG | G | G | G | G | G | G | VG | G | M | G | VG | VG | E | E | E | VG | VG | VG | VG | VG |
| Humidity | 72% | 81% | 84% | 85% | 83% | 83% | 84% | 86% | 86% | 87% | 90% | 91% | 93% | 92% | 90% | 90% | 89% | 88% | 89% | 91% | 93% | 93% | 94% | 93% |
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Monday (23 September 2019)
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 10% | 10% | 10% | <5% | <5% | 10% | 80% | 90% | 60% |
| Temperature (°C) |
15°
|
15°
|
14°
|
14°
|
15°
|
17°
|
16°
|
15°
|
16°
|
| Feels like temperature (°C) | 13° | 13° | 13° | 12° | 13° | 13° | 13° | 12° | 13° |
| Wind direction and speed (mph) | SW 11 | WSW 13 | WSW 10 | SSW 10 | S 14 | S 18 | SSE 16 | SE 19 | S 19 |
| Wind gust (mph) | 16 | 17 | 13 | 15 | 21 | 28 | 25 | 29 | 29 |
| Visibility | G | VG | VG | VG | VG | VG | G | M | M |
| Humidity | 92% | 91% | 90% | 91% | 79% | 72% | 77% | 88% | 93% |
| UV | - | - | - | - | 2 | 3 | 1 | 1 | - |
Tuesday (24 September 2019)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 40% | 40% | 40% | 60% | 60% | 50% | 10% | 10% |
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
14°
|
| Feels like temperature (°C) | 13° | 14° | 14° | 14° | 14° | 14° | 13° | 12° |
| Wind direction and speed (mph) | SSW 18 | S 15 | S 13 | SSW 12 | SW 13 | SSW 15 | SSW 14 | SSW 13 |
| Wind gust (mph) | 27 | 23 | 20 | 19 | 22 | 24 | 22 | 20 |
| Visibility | G | M | M | M | G | G | VG | G |
| Humidity | 95% | 95% | 94% | 92% | 85% | 81% | 86% | 88% |
| UV | - | - | - | 1 | 2 | 1 | 1 | - |
Wednesday (25 September 2019)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 20% | 40% | 10% | 10% | 10% | 20% | 10% | 10% |
| Temperature (°C) |
14°
|
14°
|
14°
|
15°
|
15°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) | 12° | 12° | 12° | 13° | 13° | 14° | 13° | 13° |
| Wind direction and speed (mph) | WSW 13 | W 13 | W 13 | W 13 | W 13 | W 13 | SW 12 | SW 13 |
| Wind gust (mph) | 20 | 20 | 20 | 21 | 22 | 21 | 18 | 21 |
| Visibility | M | M | M | G | VG | G | VG | G |
| Humidity | 89% | 91% | 93% | 89% | 85% | 84% | 89% | 91% |
| UV | - | - | - | 1 | 2 | 1 | 1 | - |
Thursday (26 September 2019)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 10% | 40% | 40% | 40% | 40% | 40% | 20% | 30% |
| Temperature (°C) |
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) | 13° | 12° | 12° | 12° | 12° | 12° | 12° | 11° |
| Wind direction and speed (mph) | SSW 15 | SSW 17 | SSW 18 | SSW 20 | SSW 21 | SSW 22 | SSW 21 | SW 20 |
| Wind gust (mph) | 24 | 27 | 28 | 31 | 34 | 35 | 33 | 32 |
| Visibility | M | M | M | G | G | G | G | G |
| Humidity | 93% | 92% | 92% | 88% | 83% | 81% | 85% | 85% |
| UV | - | - | - | 1 | 2 | 1 | - | - |
Friday (27 September 2019)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | 10% | 30% | 30% | 40% | 40% | 50% | 30% | 30% |
| Temperature (°C) |
15°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
14°
|
| Feels like temperature (°C) | 11° | 11° | 11° | 11° | 12° | 11° | 11° | 11° |
| Wind direction and speed (mph) | SW 20 | SW 19 | SW 19 | SW 19 | SW 20 | SW 20 | SW 19 | SW 18 |
| Wind gust (mph) | 31 | 30 | 30 | 31 | 33 | 32 | 31 | 29 |
| Visibility | G | G | G | G | G | G | G | G |
| Humidity | 86% | 86% | 86% | 83% | 80% | 81% | 83% | 84% |
| UV | - | - | - | 1 | 2 | 1 | - | - |
Wales weather forecast
Headline:
Turning more unsettled, with heavy rain at times.
This Evening and Tonight:
It will be sunny for many this evening, although often heavy showers will move into the west, with the risk of thunder. These will move eastwards overnight, with cloudy skies. Minimum temperature 13 °C.
Sunday:
Bands of often heavy rain will move eastwards, with the risk of thunder. Some brightness will develop into the afternoon, however, thundery showers will still be possible. Maximum temperature 22 °C.
Outlook for Monday to Wednesday:
Many areas sunny at first on Monday, but rain will spread northeastwards. Tuesday and Wednesday will be unsettled and breezy, with showers or longer spells of rain for most.
Updated:
UK long range weather forecast
Rain and strong winds will spread eastwards across the UK on Thursday, with gales possible in the north and west. It will stay unsettled for the end of September, with a mixture of some sunny days, and cloudier days with more persistent rainfall. It is likely to be windy at times, with the potential for gales, particularly in the west and southwest. Temperatures will vary around normal, but in any drier spells, they may be warmer than average. Into the start of October, it is most likely that we will see a continuation of the changeable weather, although this is not certain yet. We could also see a return of more settled weather for the southeast, but still, in the northwest, it may remain unsettled, with wind and rain.
Updated:
Confidence in the forecast remains low through this period. However, early October may bring spells of fine and settled weather. This would bring bright days, but with the increasing risk of overnight mist, fog and some frost. Northern and western parts of the country may continue to see some rain at times, and this might spread across the rest of the country as we go through October. Temperatures are likely to be close to the average, but with settled weather, this will bring warmer days and cooler nights.
Updated: