Ice on the ground: Sepham Heath sees more frosts than 94% of UK towns
A warm July spell here typically peaks at 22.5°C (73°F). The rainiest month is January; the driest is July. Summer afternoons here are warmer than in 79% of UK towns. Garden chairs stay out from June to September, the months with highs of 19–23°C.
Met Office 1991–2020 averages for the town itself.
A year in Sepham Heath at a glance
Each month’s typical high and low, in °C.
What a year in Sepham Heath feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 767 mm of rain a year
January is the wettest month and July the driest. About 24 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Heathrow
A frosty town: 55 air frosts and 13 days of 25°C a year
On about 55 nights a year the air drops below freezing, and on about 2 days it stays below freezing all day. About 13 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 Heathrow
Heathrow is 28 miles west of Sepham Heath, 25 m (82 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 | 8.4°C | 2.7°C | 59 mm | 6.8 | 59 |
| February | 9.0°C | 2.6°C | 45 mm | 6.2 | 76 |
| March | 11.7°C | 4.1°C | 39 mm | 3.0 | 120 |
| April | 15.0°C | 6.0°C | 42 mm | 0.8 | 169 |
| May | 18.4°C | 9.1°C | 46 mm | 0.0 | 197 |
| June | 21.6°C | 12.0°C | 47 mm | 0.0 | 197 |
| July | 23.9°C | 14.2°C | 46 mm | 0.0 | 206 |
| August | 23.4°C | 14.1°C | 54 mm | 0.0 | 192 |
| September | 20.2°C | 11.6°C | 50 mm | 0.0 | 150 |
| October | 15.8°C | 8.8°C | 65 mm | 0.3 | 111 |
| November | 11.5°C | 5.3°C | 67 mm | 2.7 | 68 |
| December | 8.8°C | 3.1°C | 57 mm | 7.2 | 53 |
| Year | 15.6°C | 7.8°C | 616 mm | 27 | 1,597 |
Met Office historic station data, Heathrow (London Airport), 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Sepham Heath 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 Kent 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 |
|---|---|---|---|
| Sepham Heath | 22.5°C | 1.3°C | 767 mm |
| Dunton Green 1.9 mi | 22.5°C about the same | 1.8°C 0.5°C milder | 773 mm |
| Otford and Kemsing 2.2 mi | 22.8°C about the same | 1.5°C about the same | 752 mm |
| Sundridge 2.9 mi | 22.6°C about the same | 1.5°C about the same | 776 mm |
| Sevenoaks 3.0 mi | 22.6°C about the same | 1.4°C about the same | 784 mm |
| Seal 3.5 mi | 21.9°C 0.6°C cooler | 1.6°C about the same | 777 mm |
| Eynsford 4.3 mi | 22.5°C about the same | 1.6°C about the same | 700 mm |
Sepham Heath 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 | 7.1°C 45°F | 1.3°C 34°F | 4.2°C | 88 mm 3.5 in |
| February | 8.1°C 47°F | 1.6°C 35°F | 4.8°C | 61 mm 2.4 in |
| March | 10.7°C 51°F | 3.0°C 37°F | 6.9°C | 49 mm 1.9 in |
| April | 13.9°C 57°F | 4.4°C 40°F | 9.2°C | 51 mm 2.0 in |
| May | 17.2°C 63°F | 7.1°C 45°F | 12.1°C | 52 mm 2.1 in |
| June | 20.2°C 68°F | 10.0°C 50°F | 15.1°C | 53 mm 2.1 in |
| July | 22.5°C 73°F | 12.3°C 54°F | 17.4°C | 46 mm 1.8 in |
| August | 22.2°C 72°F | 12.2°C 54°F | 17.2°C | 59 mm 2.3 in |
| September | 19.1°C 66°F | 9.8°C 50°F | 14.5°C | 57 mm 2.2 in |
| October | 14.9°C 59°F | 7.3°C 45°F | 11.1°C | 84 mm 3.3 in |
| November | 10.7°C 51°F | 4.3°C 40°F | 7.5°C | 85 mm 3.3 in |
| December | 8.0°C 46°F | 2.1°C 36°F | 5.1°C | 84 mm 3.3 in |
| Year | 14.6°C | 6.3°C | 10.4°C | 767 mm |
Where Sepham Heath’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 Sepham Heath’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 Heathrow (London Airport), 28 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 Sepham Heath’s climate
How warm does Sepham Heath get in summer?
July is the warmest month, with average highs of 22.5°C (73°F). About 13 days a year reach 25°C (77°F), more than 63% of UK towns.
How cold does Sepham Heath get in winter?
January nights average 1.3°C (34°F). The air drops below freezing on about 55 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Sepham Heath get?
About 767 mm (30 in) a year, less than 52% of UK towns. January is the wettest month (88 mm) and July the driest (46 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Heathrow (28 miles away), averages 1,597 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 Sepham Heath. 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 Sepham Heath →
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