Clackmannan has colder winter nights than 90% of UK towns
Midsummer highs settle at about 20.0°C (68°F). Warm afternoons come less often than in 87% of UK towns. Temperatures cover 19°C across the year, low to high. The outdoor season runs from June to September, with highs of 17–20°C.
Met Office 1991–2020 averages for the town itself.
A year in Clackmannan at a glance
Each month’s typical high and low, in °C.
What a year in Clackmannan feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,027 mm of rain a year
December is the wettest month and April the driest. About 26 days a year bring 10 mm (0.4 in) or more. 8th wettest of 8 Clackmannanshire towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Paisley
48 air frosts and 3 days of 25°C a year
On about 48 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 3 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 Paisley
Paisley is 32 miles south-west of Clackmannan, 32 m (105 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 | 7.1°C | 1.9°C | 147 mm | 8.5 | 39 |
| February | 7.8°C | 2.1°C | 111 mm | 7.3 | 69 |
| March | 9.9°C | 3.2°C | 100 mm | 4.3 | 103 |
| April | 12.9°C | 5.1°C | 72 mm | 0.9 | 133 |
| May | 16.1°C | 7.4°C | 63 mm | 0.1 | 184 |
| June | 18.3°C | 10.2°C | 67 mm | 0.0 | 161 |
| July | 19.7°C | 12.1°C | 76 mm | 0.0 | 149 |
| August | 19.5°C | 11.9°C | 90 mm | 0.0 | 151 |
| September | 16.7°C | 9.9°C | 99 mm | 0.0 | 116 |
| October | 12.9°C | 6.8°C | 134 mm | 0.9 | 89 |
| November | 9.6°C | 4.3°C | 133 mm | 3.6 | 54 |
| December | 6.8°C | 1.5°C | 136 mm | 9.7 | 36 |
| Year | 13.1°C | 6.4°C | 1,229 mm | 35 | 1,282 |
Met Office historic station data, Paisley, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Clackmannan 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 Clackmannanshire 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 |
|---|---|---|---|
| Clackmannan | 20.0°C | 1.1°C | 1,027 mm |
| Sauchie 1.9 mi | 19.7°C about the same | 1.1°C about the same | 1,031 mm |
| Alloa 2.0 mi | 20.0°C about the same | 1.2°C about the same | 1,036 mm |
| Kincardine 2.9 mi | 19.5°C about the same | 1.3°C about the same | 926 mm |
| Tillicoultry 3.2 mi | 16.2°C 3.7°C cooler | 0.2°C 0.9°C colder | 1,738 mm |
| Alva 3.7 mi | 16.2°C 3.7°C cooler | 0.4°C 0.7°C colder | 1,739 mm |
| Tullibody 3.8 mi | 18.5°C 1.4°C cooler | 1.1°C about the same | 1,203 mm |
Clackmannan 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 | 6.9°C 44°F | 1.1°C 34°F | 4.0°C | 106 mm 4.2 in |
| February | 7.8°C 46°F | 1.5°C 35°F | 4.6°C | 94 mm 3.7 in |
| March | 9.8°C 50°F | 2.6°C 37°F | 6.1°C | 80 mm 3.1 in |
| April | 12.5°C 55°F | 4.3°C 40°F | 8.4°C | 55 mm 2.1 in |
| May | 15.7°C 60°F | 6.7°C 44°F | 11.2°C | 59 mm 2.3 in |
| June | 18.2°C 65°F | 9.8°C 50°F | 13.9°C | 71 mm 2.8 in |
| July | 20.0°C 68°F | 11.5°C 53°F | 15.5°C | 81 mm 3.2 in |
| August | 19.6°C 67°F | 11.3°C 52°F | 15.2°C | 85 mm 3.4 in |
| September | 17.0°C 63°F | 9.2°C 48°F | 13.0°C | 78 mm 3.1 in |
| October | 13.3°C 56°F | 6.3°C 43°F | 9.7°C | 109 mm 4.3 in |
| November | 9.7°C 49°F | 3.4°C 38°F | 6.5°C | 101 mm 4.0 in |
| December | 7.3°C 45°F | 1.1°C 34°F | 4.2°C | 110 mm 4.3 in |
| Year | 13.1°C | 5.7°C | 9.4°C | 1,027 mm |
Where Clackmannan’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 Clackmannan’s locality.
- 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 Paisley, 32 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 Clackmannan’s climate
How warm does Clackmannan get in summer?
July is the warmest month, with average highs of 20.0°C (68°F). About 3 days a year reach 25°C (77°F), fewer than 87% of UK towns.
How cold does Clackmannan get in winter?
January nights average 1.1°C (34°F). The air drops below freezing on about 48 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Clackmannan get?
About 1,027 mm (40 in) a year, more than 79% of UK towns. December is the wettest month (110 mm) and April the driest (55 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Paisley (32 miles away), averages 1,282 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 Clackmannan. 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 Clackmannan →
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