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Climate in Sonning Common · Met Office 1991–2020 averages

Summer afternoons in Sonning Common are warmer than in 90% of UK towns

January mornings start at about 1.4°C (35°F). By frosts alone, it ranks colder than 83% of UK towns. A year here swings 21°C from midwinter lows to midsummer highs. Expect about 49 frosty starts a year, nights when the air falls below freezing.

July afternoons: warmer than 90% of UK towns
January nights: colder than 77% of UK towns
Rain a year: drier than 59% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Sonning Common at a glance

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

Jan8°C1°CColdest nights
Feb8°C2°C
Mar11°C3°C
Apr14°C4°C
May18°C7°C
Jun21°C10°C
Jul23°C12°CWarmest
Aug22°C12°C
Sep19°C10°C
Oct15°C7°C
Nov now11°C4°CWettest
Dec8°C2°C
A normal year

What a year in Sonning Common 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 / 35°F · 49 air frosts a year
Spring
14°C / 5°C
58°F / 41°F · 148 mm of rain
Summer
22°C / 11°C
72°F / 52°F · 17 days of 25°C+ a year
Autumn
15°C / 7°C
59°F / 45°F · 217 mm of rain, the wettest season
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 727 mm of rain a year

November is the wettest month and March the driest. About 19 days a year bring 10 mm (0.4 in) or more. 5th wettest of 40 Oxfordshire towns of 2,500+.

727 mm
Rain a year (29 in)
Drier than 59% of UK towns
19
Days a year with 10 mm of rain or more
1,615 hrs
Sunshine a year at Oxford
21 miles away

Rain by month

Millimetres

81 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Oxford

212 h
JFMAMJJASOND
Frost & warm days

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

On about 49 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 17 days a year reach 25°C (77°F).

49
Air frosts a year (below 0°C)
More frosts than 83% of UK towns
1
Days that stay below 0°C
17
Days of 25°C (77°F) or more
More warm days than 78% 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 Oxford

Oxford is 21 miles north-west of Sonning Common, 63 m (207 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°C2.4°C60 mm8.464
February8.6°C2.3°C47 mm7.682
March11.3°C3.6°C43 mm3.8118
April14.4°C5.3°C49 mm1.5166
May17.7°C8.2°C57 mm0.1200
June20.7°C11.1°C50 mm0.0198
July23.1°C13.1°C53 mm0.0212
August22.5°C13.0°C62 mm0.0193
September19.4°C10.7°C52 mm0.0145
October15.1°C8.0°C73 mm0.7110
November10.9°C4.9°C72 mm3.271
December8.2°C2.6°C66 mm8.657
Year15.0°C7.1°C681 mm341,615

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

Compared with other towns

How Sonning Common 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 Oxfordshire towns that size.

July afternoons22.9°C (73°F)
Warmer than 90% of UK towns6th warmest of 40 Oxfordshire towns
January nights1.4°C (35°F)
Colder than 77% of UK towns30th mildest of 40 Oxfordshire towns
Rain a year727 mm (29 in)
Drier than 59% of UK towns5th wettest of 40 Oxfordshire towns
Air frosts a year49 nights
More frosts than 83% of UK towns16th frostiest of 40 Oxfordshire towns
Days of 25°C or more17 days
More warm days than 78% of UK towns25th most 25°C days of 40 Oxfordshire 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
Sonning Common22.9°C1.4°C727 mm
Caversham 3.0 mi23.3°C about the same1.9°C about the same651 mm
Henley-on-Thames 3.3 mi22.3°C 0.6°C cooler1.4°C about the same781 mm
Woodcote 4.1 mi22.5°C about the same1.0°C about the same690 mm
Lower Shiplake 4.1 mi22.3°C 0.6°C cooler1.6°C about the same729 mm
Sonning 4.8 mi22.8°C about the same1.9°C 0.5°C milder665 mm
Reading 4.9 mi23.0°C about the same2.0°C 0.6°C milder660 mm
Month by month

Sonning Common 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
January7.7°C 46°F1.4°C 35°F4.6°C76 mm 3.0 in
February8.4°C 47°F1.8°C 35°F5.1°C53 mm 2.1 in
March11.1°C 52°F3.0°C 37°F7.0°C46 mm 1.8 in
April14.4°C 58°F4.4°C 40°F9.3°C53 mm 2.1 in
May17.6°C 64°F7.2°C 45°F12.3°C49 mm 1.9 in
June20.6°C 69°F10.1°C 50°F15.3°C50 mm 2.0 in
July22.9°C 73°F12.0°C 54°F17.4°C51 mm 2.0 in
August22.4°C 72°F11.9°C 53°F17.1°C60 mm 2.4 in
September19.4°C 67°F9.6°C 49°F14.5°C56 mm 2.2 in
October15.2°C 59°F7.2°C 45°F11.2°C80 mm 3.2 in
November11.0°C 52°F4.1°C 39°F7.6°C81 mm 3.2 in
December8.2°C 47°F2.3°C 36°F5.2°C73 mm 2.9 in
Year14.9°C6.2°C10.5°C727 mm
Sources

Where Sonning Common’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 Sonning Common’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 Oxford, 21 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 Sonning Common’s climate

How warm does Sonning Common get in summer?

July is the warmest month, with average highs of 22.9°C (73°F). About 17 days a year reach 25°C (77°F), more than 78% of UK towns.

How cold does Sonning Common get in winter?

January nights average 1.4°C (35°F). The air drops below freezing on about 49 nights a year, and about 1 days a year stay below freezing all day.

How much rain does Sonning Common get?

About 727 mm (29 in) a year, less than 59% of UK towns. November is the wettest month (81 mm) and March the driest (46 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Oxford (21 miles away), averages 1,615 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 Sonning Common. 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 Sonning Common →

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.