Southam gets more frosts than 83% of UK towns
Sunny July days climb to about 22.3°C (72°F). Rain is light here, less than falls on 79% of UK towns. Wet weather is most frequent in August and least in March. Keep the boiler serviced for the months from November to April, which average under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Southam at a glance
Each month’s typical high and low, in °C.
What a year in Southam feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 653 mm of rain a year
August is the wettest month and March the driest. About 15 days a year bring 10 mm (0.4 in) or more. 22nd wettest of 34 Warwickshire towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Oxford
49 air frosts and 15 days of 25°C a year
On about 49 nights a year the air drops below freezing, and on about 2 days it stays below freezing all day. About 15 days a year reach 25°C (77°F).
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.
The Met Office station at Oxford
Oxford is 34 miles south of Southam, 63 m (207 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.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.0°C | 2.4°C | 60 mm | 8.4 | 64 |
| February | 8.6°C | 2.3°C | 47 mm | 7.6 | 82 |
| March | 11.3°C | 3.6°C | 43 mm | 3.8 | 118 |
| April | 14.4°C | 5.3°C | 49 mm | 1.5 | 166 |
| May | 17.7°C | 8.2°C | 57 mm | 0.1 | 200 |
| June | 20.7°C | 11.1°C | 50 mm | 0.0 | 198 |
| July | 23.1°C | 13.1°C | 53 mm | 0.0 | 212 |
| August | 22.5°C | 13.0°C | 62 mm | 0.0 | 193 |
| September | 19.4°C | 10.7°C | 52 mm | 0.0 | 145 |
| October | 15.1°C | 8.0°C | 73 mm | 0.7 | 110 |
| November | 10.9°C | 4.9°C | 72 mm | 3.2 | 71 |
| December | 8.2°C | 2.6°C | 66 mm | 8.6 | 57 |
| Year | 15.0°C | 7.1°C | 681 mm | 34 | 1,615 |
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.
How Southam 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 Warwickshire towns that size.
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.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Southam | 22.3°C | 1.4°C | 653 mm |
| Stockton 1.7 mi | 22.3°C about the same | 1.4°C about the same | 654 mm |
| Long Itchington 1.9 mi | 22.3°C about the same | 1.3°C about the same | 652 mm |
| Napton on the Hill 2.9 mi | 22.0°C about the same | 1.2°C about the same | 698 mm |
| Bishop's Itchington 3.1 mi | 22.3°C about the same | 1.4°C about the same | 633 mm |
| Harbury 3.3 mi | 22.4°C about the same | 1.3°C about the same | 647 mm |
| Radford Semele 4.9 mi | 22.6°C about the same | 1.4°C about the same | 647 mm |
Southam weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 7.3°C 45°F | 1.4°C 35°F | 4.4°C | 54 mm 2.1 in |
| February | 8.0°C 46°F | 1.3°C 34°F | 4.6°C | 42 mm 1.7 in |
| March | 10.6°C 51°F | 2.6°C 37°F | 6.6°C | 39 mm 1.6 in |
| April | 13.7°C 57°F | 4.2°C 39°F | 8.9°C | 47 mm 1.9 in |
| May | 16.8°C 62°F | 6.8°C 44°F | 11.8°C | 57 mm 2.2 in |
| June | 19.8°C 68°F | 9.7°C 49°F | 14.7°C | 53 mm 2.1 in |
| July | 22.3°C 72°F | 11.7°C 53°F | 17.0°C | 56 mm 2.2 in |
| August | 21.7°C 71°F | 11.6°C 53°F | 16.6°C | 68 mm 2.7 in |
| September | 18.8°C 66°F | 9.6°C 49°F | 14.2°C | 54 mm 2.1 in |
| October | 14.4°C 58°F | 7.0°C 45°F | 10.7°C | 65 mm 2.6 in |
| November | 10.2°C 50°F | 3.8°C 39°F | 7.0°C | 59 mm 2.3 in |
| December | 7.5°C 46°F | 1.6°C 35°F | 4.6°C | 58 mm 2.3 in |
| Year | 14.2°C | 5.9°C | 10.1°C | 653 mm |
Where Southam’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 Southam’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 Oxford, 34 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 Southam’s climate
How warm does Southam get in summer?
July is the warmest month, with average highs of 22.3°C (72°F). About 15 days a year reach 25°C (77°F), more than 74% of UK towns.
How cold does Southam get in winter?
February nights average 1.3°C (34°F). The air drops below freezing on about 49 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Southam get?
About 653 mm (26 in) a year, less than 79% of UK towns. August is the wettest month (68 mm) and March the driest (39 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Oxford (34 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 Southam. 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 Southam →
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