Mary Tavy is among the wettest of UK towns: 1,617 mm (64 in) of rain a year
Midwinter brings lows of about 2.2°C (36°F). Rain peaks in December and eases off in May. Only about 4 days a year reach 25°C, fewer than in 83% of UK towns. Frost greets about 33 mornings a year, so leave time to clear the car.
Met Office 1991–2020 averages for the town itself.
A year in Mary Tavy at a glance
Each month’s typical high and low, in °C.
What a year in Mary Tavy feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,617 mm of rain a year
December is the wettest month and May the driest. About 56 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
33 air frosts and 4 days of 25°C a year
On about 33 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 4 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 Chivenor
Chivenor is 34 miles north of Mary Tavy, 6 m (20 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 |
|---|---|---|---|---|
| January | 9.1°C | 3.6°C | 91 mm | 5.4 |
| February | 9.4°C | 3.4°C | 70 mm | 5.0 |
| March | 11.2°C | 4.5°C | 60 mm | 2.6 |
| April | 13.7°C | 5.9°C | 56 mm | 0.9 |
| May | 16.5°C | 8.6°C | 55 mm | 0.0 |
| June | 19.0°C | 11.4°C | 68 mm | 0.0 |
| July | 20.7°C | 13.3°C | 74 mm | 0.0 |
| August | 20.5°C | 13.4°C | 77 mm | 0.0 |
| September | 18.8°C | 11.5°C | 70 mm | 0.0 |
| October | 15.4°C | 9.1°C | 107 mm | 0.4 |
| November | 12.1°C | 6.2°C | 106 mm | 1.8 |
| December | 9.9°C | 4.3°C | 107 mm | 4.6 |
| Year | 14.7°C | 7.9°C | 941 mm | 21 |
Met Office historic station data, Chivenor, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Mary Tavy 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 Devon 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 |
|---|---|---|---|
| Mary Tavy | 20.0°C | 2.2°C | 1,617 mm |
| Tavistock 3.8 mi | 20.4°C about the same | 2.8°C 0.6°C milder | 1,559 mm |
| Horrabridge 6.2 mi | 20.5°C 0.5°C warmer | 2.5°C about the same | 1,465 mm |
| Princetown 6.4 mi | 18.1°C 1.9°C cooler | 1.6°C 0.6°C colder | 2,024 mm |
| Gunnislake and St Ann's Chapel 6.9 mi | 20.9°C 0.9°C warmer | 2.8°C 0.6°C milder | 1,323 mm |
| Yelverton 7.3 mi | 20.1°C about the same | 2.2°C about the same | 1,456 mm |
| Bere Alston 8.6 mi | 20.7°C 0.7°C warmer | 2.5°C about the same | 1,350 mm |
Mary Tavy 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 | 7.8°C 46°F | 2.2°C 36°F | 5.0°C | 184 mm 7.2 in |
| February | 8.2°C 47°F | 2.2°C 36°F | 5.2°C | 140 mm 5.5 in |
| March | 10.0°C 50°F | 3.1°C 38°F | 6.5°C | 113 mm 4.5 in |
| April | 12.7°C 55°F | 4.3°C 40°F | 8.5°C | 95 mm 3.7 in |
| May | 15.7°C 60°F | 7.0°C 45°F | 11.3°C | 87 mm 3.4 in |
| June | 18.6°C 65°F | 9.6°C 49°F | 13.8°C | 98 mm 3.9 in |
| July | 20.0°C 68°F | 11.4°C 53°F | 15.6°C | 114 mm 4.5 in |
| August | 19.9°C 68°F | 11.5°C 53°F | 15.6°C | 122 mm 4.8 in |
| September | 17.7°C 64°F | 9.7°C 49°F | 13.7°C | 117 mm 4.6 in |
| October | 14.2°C 58°F | 7.2°C 45°F | 10.8°C | 173 mm 6.8 in |
| November | 10.7°C 51°F | 4.9°C 41°F | 7.7°C | 182 mm 7.2 in |
| December | 8.6°C 47°F | 2.9°C 37°F | 5.7°C | 192 mm 7.6 in |
| Year | 13.7°C | 6.3°C | 9.9°C | 1,617 mm |
Where Mary Tavy’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 Mary Tavy’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 Chivenor, 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 Mary Tavy’s climate
How warm does Mary Tavy get in summer?
July is the warmest month, with average highs of 20.0°C (68°F). About 4 days a year reach 25°C (77°F), fewer than 83% of UK towns.
How cold does Mary Tavy get in winter?
January nights average 2.2°C (36°F). The air drops below freezing on about 33 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Mary Tavy get?
About 1,617 mm (64 in) a year, more than 98% of UK towns. December is the wettest month (192 mm) and May the driest (87 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 Mary Tavy. 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 Mary Tavy →
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.