Photo: Des Blenkinsopp · CC BY-SA 2.0More days reach 25 degrees in Waltham St Lawrence than in 92% of UK towns
A clear January night here typically dips to 1.7°C (35°F). Rain peaks in November and eases off in March. Frost is common: about 47 nights a year drop below freezing, more than in 77% of UK towns. For walks and days out, the stretch from June to September brings highs of 19–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Waltham St Lawrence at a glance
Each month’s typical high and low, in °C.
What a year in Waltham St Lawrence feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 694 mm of rain a year
November is the wettest month and March the driest. About 15 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Heathrow
47 air frosts and 20 days of 25°C a year
On about 47 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 20 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 15 miles east of Waltham St Lawrence, 25 m (82 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 | 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 Waltham St Lawrence 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 Berkshire 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 |
|---|---|---|---|
| Waltham St Lawrence | 22.4°C | 1.7°C | 694 mm |
| Twyford 2.4 mi | 22.8°C about the same | 1.8°C about the same | 667 mm |
| Hurst 2.7 mi | 22.9°C about the same | 1.9°C about the same | 652 mm |
| Wargrave 2.7 mi | 22.8°C about the same | 1.7°C about the same | 669 mm |
| Charvil 3.4 mi | 22.8°C about the same | 1.9°C about the same | 666 mm |
| Binfield 3.9 mi | 23.0°C 0.6°C warmer | 1.9°C about the same | 664 mm |
| Lower Shiplake 3.9 mi | 22.3°C about the same | 1.6°C about the same | 729 mm |
Waltham St Lawrence 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 | 7.9°C 46°F | 1.7°C 35°F | 4.8°C | 64 mm 2.5 in |
| February | 8.4°C 47°F | 1.7°C 35°F | 5.0°C | 49 mm 1.9 in |
| March | 11.1°C 52°F | 2.9°C 37°F | 7.0°C | 43 mm 1.7 in |
| April | 14.3°C 58°F | 4.4°C 40°F | 9.3°C | 50 mm 2.0 in |
| May | 17.3°C 63°F | 7.1°C 45°F | 12.2°C | 49 mm 1.9 in |
| June | 20.3°C 68°F | 9.9°C 50°F | 15.0°C | 50 mm 2.0 in |
| July | 22.4°C 72°F | 11.9°C 53°F | 17.3°C | 52 mm 2.0 in |
| August | 22.1°C 72°F | 11.9°C 53°F | 17.0°C | 62 mm 2.4 in |
| September | 19.2°C 67°F | 9.6°C 49°F | 14.4°C | 53 mm 2.1 in |
| October | 14.9°C 59°F | 7.1°C 45°F | 11.0°C | 78 mm 3.1 in |
| November | 10.8°C 51°F | 4.1°C 39°F | 7.4°C | 78 mm 3.1 in |
| December | 8.2°C 47°F | 1.9°C 35°F | 5.1°C | 69 mm 2.7 in |
| Year | 14.7°C | 6.2°C | 10.5°C | 694 mm |
Where Waltham St Lawrence’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 Waltham St Lawrence’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), 15 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 Waltham St Lawrence’s climate
How warm does Waltham St Lawrence get in summer?
July is the warmest month, with average highs of 22.4°C (72°F). About 20 days a year reach 25°C (77°F), more than 92% of UK towns.
How cold does Waltham St Lawrence get in winter?
February nights average 1.7°C (35°F). The air drops below freezing on about 47 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Waltham St Lawrence get?
About 694 mm (27 in) a year, less than 68% of UK towns. November is the wettest month (78 mm) and March the driest (43 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Heathrow (15 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 Waltham St Lawrence. 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 Waltham St Lawrence →
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