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Climate in Llwyngwril · Met Office 1991–2020 averages

Hardly any UK towns see fresher July days than Llwyngwril

Winter’s chill peaks in January, at about 3.9°C (39°F) after dark. By January nights alone, it runs milder than almost every UK town. The rainiest month is October; the driest is April. Long light evenings and highs of 17°C make July and August the time for the coast and the hills.

July afternoons: cooler than almost every UK town
January nights: milder than almost every UK town
Rain a year: wetter than 98% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Llwyngwril at a glance

Each month’s typical high and low, in °C.

Jan8°C4°C
Feb7°C2°CColdest nights
Mar8°C3°C
Apr11°C4°C
May14°C7°C
Jun16°C9°C
Jul17°C12°CWarmest
Aug17°C12°C
Sep16°C10°C
Oct13°C8°CWettest
Nov now10°C5°C
Dec8°C3°C
A normal year

What a year in Llwyngwril feels like

Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.

Winter
8°C / 3°C
46°F / 37°F · 17 air frosts a year
Spring
11°C / 5°C
52°F / 40°F · 303 mm of rain
Summer
17°C / 11°C
63°F / 52°F · 3 days of 25°C+ a year
Autumn
13°C / 8°C
55°F / 46°F · 518 mm of rain, the wettest season
Best months to be outsideJulAugHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 1,659 mm of rain a year

October is the wettest month and April the driest. About 48 days a year bring 10 mm (0.4 in) or more.

1,659 mm
Rain a year (65 in)
Wetter than 98% of UK towns
48
Days a year with 10 mm of rain or more
1,554 hrs
Sunshine a year at Aberporth
42 miles away

Rain by month

Millimetres

205 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Aberporth

210 h
JFMAMJJASOND
Frost & warm days

17 air frosts and 3 days of 25°C a year

On about 17 nights a year the air drops below freezing; days that stay below freezing are rare. About 3 days a year reach 25°C (77°F).

17
Air frosts a year (below 0°C)
Fewer frosts than 97% of UK towns
0
Days that stay below 0°C
3
Days of 25°C (77°F) or more
Fewer warm days than 87% of UK towns

Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.

Weather station

The Met Office station at Aberporth

Aberporth is 42 miles south-west of Llwyngwril, 133 m (436 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full; at that distance read it for sunshine and the station’s own record, not as the town’s figures.

MonthHighLowRainAir frostsSun (hours)
January7.8°C3.4°C90 mm4.560
February7.9°C3.3°C67 mm3.879
March9.4°C4.2°C58 mm1.8127
April11.6°C5.7°C54 mm0.4172
May14.3°C8.2°C55 mm0.0210
June16.6°C10.7°C64 mm0.0203
July18.3°C12.5°C67 mm0.0187
August18.3°C12.7°C75 mm0.0169
September16.7°C11.2°C71 mm0.0141
October13.6°C8.9°C107 mm0.099
November10.5°C6.2°C117 mm0.659
December8.5°C4.1°C107 mm3.549
Year12.8°C7.6°C931 mm151,554

Met Office historic station data, Aberporth, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.

Compared with other towns

How Llwyngwril compares

Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among Gwynedd towns that size.

July afternoons17.5°C (63°F)
Cooler than almost every UK town
January nights3.9°C (39°F)
Milder than almost every UK town
Rain a year1,659 mm (65 in)
Wetter than 98% of UK towns
Air frosts a year17 nights
Fewer frosts than 97% of UK towns
Days of 25°C or more3 days
Fewer warm days than 87% of UK towns
Next door

Nearby towns’ climate

The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.

TownJuly highJanuary lowRain a year
Llwyngwril17.5°C3.9°C1,659 mm
Barmouth 4.1 mi20.1°C 2.6°C warmer3.3°C 0.6°C colder1,046 mm
Tywyn 5.7 mi19.5°C 2.1°C warmer4.1°C about the same1,211 mm
Dolgellau 9.9 mi19.7°C 2.2°C warmer2.6°C 1.3°C colder1,755 mm
Machynlleth 11.2 mi19.2°C 1.7°C warmer2.5°C 1.4°C colder2,132 mm
Month by month

Llwyngwril weather by month

Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).

MonthHighLowMeanRain
January8.4°C 47°F3.9°C 39°F6.2°C138 mm 5.4 in
February7.1°C 45°F2.0°C 36°F4.6°C133 mm 5.2 in
March8.4°C 47°F2.7°C 37°F5.5°C102 mm 4.0 in
April11.2°C 52°F4.4°C 40°F7.7°C95 mm 3.7 in
May13.9°C 57°F7.0°C 45°F10.3°C106 mm 4.2 in
June16.1°C 61°F9.4°C 49°F12.7°C119 mm 4.7 in
July17.5°C 63°F11.5°C 53°F14.3°C132 mm 5.2 in
August17.5°C 63°F11.6°C 53°F14.5°C137 mm 5.4 in
September15.9°C 61°F10.0°C 50°F12.9°C139 mm 5.5 in
October12.7°C 55°F7.6°C 46°F10.2°C205 mm 8.1 in
November9.8°C 50°F5.1°C 41°F7.4°C174 mm 6.9 in
December7.6°C 46°F3.1°C 37°F5.3°C181 mm 7.1 in
Year12.2°C6.5°C9.3°C1,659 mm
Sources

Where Llwyngwril’s numbers come from

Averages over 30 years, not a forecast.

  • Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the Met Office 2 km grid square nearest Llwyngwril’s centre (the town is smaller than one square).
  • Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
  • Weather station and sunshine: Met Office historic station data for Aberporth, 42 miles away, months of 1991–2020 averaged.
  • Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.

Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.

Questions about Llwyngwril’s climate

How warm does Llwyngwril get in summer?

July is the warmest month, with average highs of 17.5°C (63°F). About 3 days a year reach 25°C (77°F), fewer than 87% of UK towns.

How cold does Llwyngwril get in winter?

February nights average 2.0°C (36°F). The air drops below freezing on about 17 nights a year, and about 0 days a year stay below freezing all day.

How much rain does Llwyngwril get?

About 1,659 mm (65 in) a year, more than 98% of UK towns. October is the wettest month (205 mm) and April the driest (95 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Aberporth (42 miles away), averages 1,554 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.

Where do these figures come from?

The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside Llwyngwril. They are 30-year averages, not a forecast.

Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for Llwyngwril →

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.