Photo: Hugh Venables · CC BY-SA 2.0Swavesey sits near the bottom of UK towns for rain, with 546 mm (21 in) a year
The warmest part of a July day comes in at 23.0°C (73°F) on average. From frosty January to warm July, readings climb 21°C. By warm days alone, it ranks hotter than 97% of UK towns. Frost greets about 42 mornings a year, so leave time to clear the car.
Met Office 1991–2020 averages for the town itself.
A year in Swavesey at a glance
Each month’s typical high and low, in °C.
What a year in Swavesey feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 546 mm of rain a year
October is the wettest month and March the driest. About 10 days a year bring 10 mm (0.4 in) or more. 50th wettest of 51 Cambridgeshire towns of 2,500+.
Rain by month
Millimetres
42 air frosts and 23 days of 25°C a year
On about 42 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 23 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 Cambridge NIAB
Cambridge NIAB is 5.8 miles south-east of Swavesey, 26 m (85 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 7.7°C | 1.9°C | 49 mm | 9.0 |
| February | 8.3°C | 1.8°C | 36 mm | 8.7 |
| March | 11.0°C | 3.1°C | 33 mm | 5.2 |
| April | 14.1°C | 4.7°C | 38 mm | 2.6 |
| May | 17.4°C | 7.4°C | 43 mm | 0.6 |
| June | 20.4°C | 10.5°C | 49 mm | 0.0 |
| July | 23.1°C | 12.6°C | 48 mm | 0.0 |
| August | 22.9°C | 12.6°C | 56 mm | 0.0 |
| September | 19.6°C | 10.5°C | 51 mm | 0.0 |
| October | 15.1°C | 7.9°C | 59 mm | 0.7 |
| November | 10.7°C | 4.5°C | 53 mm | 3.7 |
| December | 8.0°C | 2.2°C | 50 mm | 9.2 |
| Year | 14.9°C | 6.6°C | 563 mm | 40 |
Met Office historic station data, Cambridge NIAB, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Swavesey 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 Cambridgeshire 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 |
|---|---|---|---|
| Swavesey | 23.0°C | 1.7°C | 546 mm |
| Over 1.6 mi | 22.9°C about the same | 1.7°C about the same | 564 mm |
| Longstanton and Northstowe 2.5 mi | 22.9°C about the same | 1.7°C about the same | 555 mm |
| Fenstanton 2.6 mi | 23.0°C about the same | 1.7°C about the same | 548 mm |
| Needingworth 2.6 mi | 23.0°C about the same | 1.8°C about the same | 549 mm |
| Willingham 3.0 mi | 23.1°C about the same | 1.7°C about the same | 564 mm |
| Bar Hill 3.4 mi | 23.1°C about the same | 1.7°C about the same | 540 mm |
Swavesey 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 | 7.6°C 46°F | 1.7°C 35°F | 4.7°C | 45 mm 1.8 in |
| February | 8.5°C 47°F | 1.7°C 35°F | 5.1°C | 33 mm 1.3 in |
| March | 11.2°C 52°F | 3.0°C 37°F | 7.1°C | 32 mm 1.3 in |
| April | 14.2°C 58°F | 4.6°C 40°F | 9.4°C | 38 mm 1.5 in |
| May | 17.4°C 63°F | 7.4°C 45°F | 12.4°C | 44 mm 1.7 in |
| June | 20.4°C 69°F | 10.4°C 51°F | 15.4°C | 47 mm 1.8 in |
| July | 23.0°C 73°F | 12.6°C 55°F | 17.8°C | 49 mm 1.9 in |
| August | 22.9°C 73°F | 12.7°C 55°F | 17.8°C | 56 mm 2.2 in |
| September | 19.7°C 67°F | 10.5°C 51°F | 15.1°C | 46 mm 1.8 in |
| October | 15.3°C 60°F | 7.9°C 46°F | 11.6°C | 57 mm 2.3 in |
| November | 10.8°C 51°F | 4.4°C 40°F | 7.6°C | 51 mm 2.0 in |
| December | 7.9°C 46°F | 2.1°C 36°F | 5.0°C | 48 mm 1.9 in |
| Year | 14.9°C | 6.6°C | 10.8°C | 546 mm |
Where Swavesey’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 Swavesey’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 Cambridge NIAB, 5.8 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 Swavesey’s climate
How warm does Swavesey get in summer?
July is the warmest month, with average highs of 23.0°C (73°F). About 23 days a year reach 25°C (77°F), more than 97% of UK towns.
How cold does Swavesey get in winter?
February nights average 1.7°C (35°F). The air drops below freezing on about 42 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Swavesey get?
About 546 mm (21 in) a year, less than almost every UK town. October is the wettest month (57 mm) and March the driest (32 mm).
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 Swavesey. 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 Swavesey →
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.