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Climate in Abergavenny · Met Office 1991–2020 averages

Wet weather: 1,110 mm (44 in) a year falls on Abergavenny, more than on 85% of UK towns

Nights in January average 2.3°C (36°F). The rainiest month is December; the driest is June. Its January nights stay gentler than in 78% of UK towns. The heating season runs November to April: each of those months averages under 10°C.

July afternoons: cooler than 56% of UK towns
January nights: milder than 78% of UK towns
Rain a year: wetter than 85% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Abergavenny at a glance

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

Jan8°C2°C
Feb8°C2°CColdest nights
Mar11°C3°C
Apr14°C4°C
May17°C7°C
Jun19°C10°C
Jul21°C12°CWarmest
Aug21°C11°C
Sep18°C9°C
Oct14°C7°C
Nov now11°C4°C
Dec8°C2°CWettest
A normal year

What a year in Abergavenny feels like

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

Winter
8°C / 2°C
47°F / 36°F · 340 mm of rain, the wettest season
Spring
14°C / 5°C
56°F / 41°F · 241 mm of rain
Summer
20°C / 11°C
69°F / 51°F · 11 days of 25°C+ a year
Autumn
14°C / 7°C
58°F / 44°F · 313 mm of rain
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 1,110 mm of rain a year

December is the wettest month and June the driest. About 34 days a year bring 10 mm (0.4 in) or more. 32nd wettest of 38 Gwent towns of 2,500+.

1,110 mm
Rain a year (44 in)
Wetter than 85% of UK towns
34
Days a year with 10 mm of rain or more
1,570 hrs
Sunshine a year at Ross-on-Wye
19 miles away

Rain by month

Millimetres

128 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Ross-on-Wye

209 h
JFMAMJJASOND
Frost & warm days

41 air frosts and 11 days of 25°C a year

On about 41 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 11 days a year reach 25°C (77°F).

41
Air frosts a year (below 0°C)
Fewer frosts than 53% of UK towns
under 1
Days that stay below 0°C
11
Days of 25°C (77°F) or more
More warm days than 53% 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 Ross-on-Wye

Ross-on-Wye is 19 miles east of Abergavenny, 67 m (220 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January8.0°C2.2°C76 mm9.055
February8.7°C2.1°C55 mm8.477
March11.2°C3.3°C53 mm4.9118
April14.2°C5.0°C55 mm2.0165
May17.4°C7.8°C57 mm0.1202
June20.3°C10.7°C56 mm0.0201
July22.3°C12.6°C52 mm0.0209
August21.7°C12.5°C64 mm0.0188
September19.1°C10.3°C57 mm0.0143
October14.8°C7.7°C85 mm1.2104
November10.9°C4.6°C80 mm4.563
December8.3°C2.4°C79 mm8.847
Year14.7°C6.8°C768 mm391,570

Met Office historic station data, Ross-On-Wye, 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 Abergavenny 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 Gwent towns that size.

July afternoons21.2°C (70°F)
Cooler than 56% of UK towns11th warmest of 38 Gwent towns
January nights2.3°C (36°F)
Milder than 78% of UK towns8th mildest of 38 Gwent towns
Rain a year1,110 mm (44 in)
Wetter than 85% of UK towns32nd wettest of 38 Gwent towns
Air frosts a year41 nights
Fewer frosts than 53% of UK towns27th frostiest of 38 Gwent towns
Days of 25°C or more11 days
More warm days than 53% of UK towns8th most 25°C days of 38 Gwent 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
Abergavenny21.2°C2.3°C1,110 mm
Llanfoist 1.2 mi21.2°C about the same2.6°C about the same944 mm
Govilon 2.2 mi21.2°C about the same2.4°C about the same940 mm
Gilwern 3.2 mi21.2°C about the same2.1°C about the same961 mm
Blaenavon 4.8 mi20.0°C 1.2°C cooler0.6°C 1.7°C colder1,518 mm
Crickhowell 5.5 mi21.4°C about the same2.5°C about the same1,203 mm
Penperlleni 6.4 mi21.4°C about the same1.8°C about the same1,205 mm
Month by month

Abergavenny 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
January8.0°C 46°F2.3°C 36°F5.1°C121 mm 4.8 in
February8.3°C 47°F2.0°C 36°F5.1°C91 mm 3.6 in
March10.5°C 51°F2.9°C 37°F6.7°C80 mm 3.1 in
April13.6°C 56°F4.5°C 40°F9.0°C73 mm 2.9 in
May16.6°C 62°F6.9°C 44°F11.7°C88 mm 3.5 in
June19.4°C 67°F9.7°C 49°F14.5°C68 mm 2.7 in
July21.2°C 70°F11.5°C 53°F16.4°C68 mm 2.7 in
August20.7°C 69°F11.3°C 52°F16.1°C80 mm 3.2 in
September18.2°C 65°F9.0°C 48°F13.6°C78 mm 3.1 in
October14.3°C 58°F6.9°C 44°F10.5°C116 mm 4.6 in
November10.7°C 51°F4.2°C 40°F7.4°C120 mm 4.7 in
December8.1°C 47°F2.2°C 36°F5.1°C128 mm 5.0 in
Year14.1°C6.1°C10.1°C1,110 mm
Sources

Where Abergavenny’s numbers come from

Averages over 30 years, not a forecast.

  • Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Abergavenny’s built-up area.
  • 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 Ross-On-Wye, 19 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 Abergavenny’s climate

How warm does Abergavenny get in summer?

July is the warmest month, with average highs of 21.2°C (70°F). About 11 days a year reach 25°C (77°F), more than 53% of UK towns.

How cold does Abergavenny get in winter?

February nights average 2.0°C (36°F). The air drops below freezing on about 41 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Abergavenny get?

About 1,110 mm (44 in) a year, more than 85% of UK towns. December is the wettest month (128 mm) and June the driest (68 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Ross-on-Wye (19 miles away), averages 1,570 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 Abergavenny. 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 Abergavenny →

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.