❄ Snow Watch
Snow forecast for Southampton and across the UK, with the chance of snow from 51 forecast runs
Snow Across the UK
Each pin shows the total forecast snowfall in centimetres for that place over the period you choose. Grey-blue pins have no snow forecast, and the colour deepens through blue and purple to pink as the forecast total grows. Click a pin for the day-by-day figures, or click a place in the table to find it on the map.
| Place | Snow forecast (cm) | Coldest night (°C) |
|---|
Southampton: Snowfall and Night Temperature for the Next 7 Days
The bars show how much new snow the forecast expects each day, in centimetres, and the line is the lowest temperature of each day. Snow needs air near or below freezing, so look for bars on days when the line is close to 0°C or lower. A day of bars with a temperature well above 2°C usually means the precipitation will fall as rain.
Chance of Snow in Southampton, Next 14 Days
The forecast is run 51 times with tiny changes to the starting conditions. Each bar is the share of those runs that give at least 0.1 cm of snow on that day. A high bar means most runs agree that snow is likely, a low bar means only a few do, and a bar at zero means none of them show snow. Chances for the days beyond about a week are naturally lower and less certain, because the runs spread apart further ahead.
Southampton: Hour by Hour for the Next 72 Hours
Bars show forecast snowfall each hour in centimetres and the line shows the air temperature. Snow falling when the temperature is at or just above freezing often turns to sleet or melts on contact with the ground, and it settles best when the temperature is at or below 0°C.
Freezing Level Height (metres)
The freezing level is the height above sea level at which the air temperature is 0°C. When it is high, precipitation falls as rain over Southampton, which is at about sea level. When it drops to a few hundred metres, snow can fall to low ground. A very low freezing level, close to the ground, is the signal that snow is more likely to settle here.
About this page
All of these figures come from computer weather forecast models, not from measurements. Snowfall is shown as centimetres of fresh snow. Snow lying is the model's own estimate and is usually the least reliable number, because whether snow settles depends on the exact ground temperature, wind and how heavy the snow is. They are saved between updates so the page is never blank.
Snow forecasts are among the hardest to get right. A shift of one or two degrees, or of a few miles in a weather front's track, can turn heavy rain into snow or the other way round, so forecasts of snow for Southampton can change quickly and the chance figures are a better guide than any single total.
For official warnings of snow and ice, see the Weather Warnings page. For the long record of cold winters in Southampton, see the Snow Probability Tracker.
Updated 01:47.