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Weather & Climate in Machynlleth, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Machynlleth experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 39°F in January while summers reach 58°F in July / relatively mild seasonal variation. The area gets 235 sunny days per year, above the national average. Annual precipitation totals 55.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 52 feet.
Temperature
39°F Jan (4°C)
58°F Jul (15°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 58°F (15°C) |
| Sunny Days | 235 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 4.4 sq mi (11.3 km²) |
| Population Density | 513/sq mi |
| Coordinates | 52.5897°N, 3.8531°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
49 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 22, 2002 | 2 km ESE of Wombourn, United Kingdom | M4.8 | 115 km | 9 km |
| Apr 2, 1990 | 4 km NNE of Presteigne, United Kingdom | M4.7 | 66 km | 18 km |
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 87 km | 10 km |
| Oct 21, 2002 | 1 km ESE of Manchester, United Kingdom | M4.3 | 147 km | 5 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 96 km | 12 km |
| Feb 20, 2014 | 17 km NNW of Ilfracombe, United Kingdom | M4.1 | 138 km | 3 km |
| Mar 7, 1996 | 3 km SW of Clive, United Kingdom | M3.8 | 77 km | 10 km |
| Feb 14, 2005 | 2 km SW of Conwy, United Kingdom | M3.8 | 75 km | 5 km |
| Oct 24, 2002 | 2 km WNW of Droylsden, United Kingdom | M3.8 | 150 km | 4 km |
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 67 km | 10 km |
| May 30, 2022 | 2 km ESE of Prees, United Kingdom | M3.6 | 89 km | 10 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 148 km | 10 km |
| Mar 17, 1994 | 5 km WNW of Newtown, United Kingdom | M3.5 | 33 km | 10 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 107 km | 8 km |
| Jul 29, 1992 | 8 km WNW of Caernarfon, United Kingdom | M3.5 | 73 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 124 km | 10 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 125 km | 14 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 99 km | 10 km |
| Feb 10, 1994 | 2 km NNE of Tregarth, United Kingdom | M3.3 | 71 km | 10 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 110 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 5.7 in | |
| February | 39°F (4°C) | 4.1 in | Coldest |
| March | 42°F (5°C) | 4.9 in | |
| April | 45°F (7°C) | 3.4 in | |
| May | 50°F (10°C) | 3.0 in | Driest |
| June | 55°F (13°C) | 3.6 in | |
| July | 58°F (15°C) | 3.6 in | Warmest |
| August | 58°F (14°C) | 4.3 in | |
| September | 54°F (12°C) | 4.7 in | |
| October | 49°F (10°C) | 5.8 in | |
| November | 44°F (7°C) | 6.3 in | Wettest |
| December | 41°F (5°C) | 6.2 in |
Machynlleth has a seasonal temperature swing of 19°F / from 39°F in February to 58°F in July. Total annual precipitation is 55.5 inches, with November being the wettest month (6.3") and May the driest (3.0").