Photo: Jonathan Billinger · CC BY-SA 2.0More rain falls on Gunnislake and St Ann's Chapel than on 93% of UK towns: 1,323 mm (52 in) a year
Expect July afternoons of about 20.9°C (70°F). Only 18°C separates winter nights from summer afternoons. In January, nights here are milder than in 91% of UK towns. Gritters and ice scrapers earn their keep on roughly 30 nights a year below 0°C.
Met Office 1991–2020 averages for the town itself.
A year in Gunnislake and St Ann's Chapel at a glance
Each month’s typical high and low, in °C.
What a year in Gunnislake and St Ann's Chapel feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,323 mm of rain a year
December is the wettest month and May the driest. About 44 days a year bring 10 mm (0.4 in) or more. 4th wettest of 35 Cornwall towns of 2,500+.
Rain by month
Millimetres
30 air frosts and 8 days of 25°C a year
On about 30 nights a year the air drops below freezing; days that stay below freezing are rare. About 8 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 39 miles north of Gunnislake and St Ann's Chapel, 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 Gunnislake and St Ann's Chapel 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 Cornwall 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 |
|---|---|---|---|
| Gunnislake and St Ann's Chapel | 20.9°C | 2.8°C | 1,323 mm |
| Bere Alston 3.2 mi | 20.7°C about the same | 2.5°C about the same | 1,350 mm |
| Tavistock 3.8 mi | 20.4°C 0.5°C cooler | 2.8°C about the same | 1,559 mm |
| Kelly Bray 4.0 mi | 20.3°C 0.6°C cooler | 2.3°C 0.5°C colder | 1,446 mm |
| Callington 4.2 mi | 20.7°C about the same | 2.4°C about the same | 1,308 mm |
| Horrabridge 5.5 mi | 20.5°C about the same | 2.5°C about the same | 1,465 mm |
| Yelverton 6.2 mi | 20.1°C 0.8°C cooler | 2.2°C 0.6°C colder | 1,456 mm |
Gunnislake and St Ann's Chapel 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 | 8.8°C 48°F | 2.8°C 37°F | 5.8°C | 154 mm 6.1 in |
| February | 9.2°C 48°F | 2.9°C 37°F | 6.0°C | 116 mm 4.6 in |
| March | 10.9°C 52°F | 3.8°C 39°F | 7.3°C | 92 mm 3.6 in |
| April | 13.4°C 56°F | 5.1°C 41°F | 9.2°C | 77 mm 3.0 in |
| May | 16.5°C 62°F | 7.8°C 46°F | 12.1°C | 71 mm 2.8 in |
| June | 18.9°C 66°F | 10.2°C 50°F | 14.5°C | 78 mm 3.1 in |
| July | 20.9°C 70°F | 12.4°C 54°F | 16.6°C | 87 mm 3.4 in |
| August | 20.6°C 69°F | 12.3°C 54°F | 16.4°C | 104 mm 4.1 in |
| September | 18.6°C 65°F | 10.3°C 51°F | 14.4°C | 91 mm 3.6 in |
| October | 14.8°C 59°F | 7.8°C 46°F | 11.3°C | 146 mm 5.7 in |
| November | 11.5°C 53°F | 5.1°C 41°F | 8.3°C | 151 mm 5.9 in |
| December | 9.3°C 49°F | 3.5°C 38°F | 6.3°C | 156 mm 6.1 in |
| Year | 14.4°C | 7.0°C | 10.7°C | 1,323 mm |
Where Gunnislake and St Ann's Chapel’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 Gunnislake and St Ann's Chapel’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 Chivenor, 39 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 Gunnislake and St Ann's Chapel’s climate
How warm does Gunnislake and St Ann's Chapel get in summer?
July is the warmest month, with average highs of 20.9°C (70°F). About 8 days a year reach 25°C (77°F), fewer than 64% of UK towns.
How cold does Gunnislake and St Ann's Chapel get in winter?
January nights average 2.8°C (37°F). The air drops below freezing on about 30 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Gunnislake and St Ann's Chapel get?
About 1,323 mm (52 in) a year, more than 93% of UK towns. December is the wettest month (156 mm) and May the driest (71 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 Gunnislake and St Ann's Chapel. 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 Gunnislake and St Ann's Chapel →
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